Merge pull request #260 from christianlouis/copilot/format-code-with-linters

style: fix black, isort, and flake8 violations across app/ and tests/

app/api/files.py

@@ -425,16 +425,12 @@ def reprocess_with_cloud_ocr(request: Request, file_id: int, db: DbSession):
             logger.info(f"Using local file for Cloud OCR reprocessing: {source_file}")
         else:
             raise HTTPException(
-                status_code=400, 
-                detail="Neither original nor local file found on disk. Cannot reprocess."
+                status_code=400, detail="Neither original nor local file found on disk. Cannot reprocess."
             )
 
         # Queue the file for processing with force_cloud_ocr=True
         task = process_document.delay(
-            source_file,
-            original_filename=file_record.original_filename,
-            file_id=file_record.id,
-            force_cloud_ocr=True
+            source_file, original_filename=file_record.original_filename, file_id=file_record.id, force_cloud_ocr=True
         )
 
         logger.info(

app/api/url_upload.py

@@ -277,7 +277,7 @@ async def process_url(request: Request, url_request: URLUploadRequest):
         return {
             "task_id": task.id,
             "status": "queued",
-            "message": f"File downloaded from URL and queued for processing",
+            "message": "File downloaded from URL and queued for processing",
             "filename": safe_filename,
             "size": downloaded_size,
         }

app/celery_worker.py

@@ -13,6 +13,7 @@ from app.tasks.convert_to_pdf import convert_to_pdf  # noqa: F401
 from app.tasks.embed_metadata_into_pdf import embed_metadata_into_pdf  # noqa: F401
 from app.tasks.extract_metadata_with_gpt import extract_metadata_with_gpt  # noqa: F401
 from app.tasks.imap_tasks import pull_all_inboxes  # noqa: F401
+from app.tasks.monitor_stalled_steps import monitor_stalled_steps  # noqa: F401
 
 # **Ensure all tasks are imported before Celery starts**
 from app.tasks.process_document import process_document  # noqa: F401
@@ -33,7 +34,6 @@ from app.tasks.upload_to_s3 import upload_to_s3  # noqa: F401
 from app.tasks.upload_to_sftp import upload_to_sftp  # noqa: F401
 from app.tasks.upload_to_webdav import upload_to_webdav  # noqa: F401
 from app.tasks.uptime_kuma_tasks import ping_uptime_kuma  # noqa: F401
-from app.tasks.monitor_stalled_steps import monitor_stalled_steps  # noqa: F401
 
 celery.conf.task_routes = {
     "app.tasks.*": {"queue": "default"},

app/config.py

@@ -33,7 +33,8 @@ class Settings(BaseSettings):
     paperless_host: Optional[str] = None
     paperless_custom_field_absender: Optional[str] = None  # Name of the "absender" custom field in Paperless
     # JSON mapping of metadata field names to Paperless custom field names
-    # Example: {"absender": "Sender", "empfaenger": "Recipient", "language": "Language", "correspondent": "Correspondent"}
+    # Example: {"absender": "Sender", "empfaenger": "Recipient",
+    #           "language": "Language", "correspondent": "Correspondent"}
     paperless_custom_fields_mapping: Optional[str] = None
 
     azure_ai_key: str
@@ -176,23 +177,35 @@ class Settings(BaseSettings):
     )
     max_single_file_size: Optional[int] = Field(
         default=None,
-        description="Maximum size for a single file chunk in bytes. If set and file exceeds this, it will be split into smaller chunks for processing. Default: None (no splitting).",
+        description=(
+            "Maximum size for a single file chunk in bytes. If set and file exceeds this,"
+            " it will be split into smaller chunks for processing. Default: None (no splitting)."
+        ),
     )
 
     # Deduplication settings - prevents processing of duplicate files
     enable_deduplication: bool = Field(
         default=True,
-        description="Enable deduplication check before processing. If enabled, files with the same SHA-256 hash as previously processed files will not be processed again. Default: True (enabled).",
+        description=(
+            "Enable deduplication check before processing. If enabled, files with the same SHA-256 hash"
+            " as previously processed files will not be processed again. Default: True (enabled)."
+        ),
     )
     show_deduplication_step: bool = Field(
         default=True,
-        description="Show the 'Check for Duplicates' step in processing history. If False, the check is still performed but not displayed. Default: True.",
+        description=(
+            "Show the 'Check for Duplicates' step in processing history."
+            " If False, the check is still performed but not displayed. Default: True."
+        ),
     )
 
     # Processing step timeout - prevents files from getting stuck in "in_progress" state
     step_timeout: int = Field(
         default=600,
-        description="Timeout in seconds for processing steps. If a step is 'in_progress' for longer than this, it will be marked as failed. Default: 600 seconds (10 minutes).",
+        description=(
+            "Timeout in seconds for processing steps. If a step is 'in_progress' for longer than this,"
+            " it will be marked as failed. Default: 600 seconds (10 minutes)."
+        ),
     )
 
     # Security Headers Configuration (see SECURITY_AUDIT.md and docs/DeploymentGuide.md)
@@ -215,7 +228,10 @@ class Settings(BaseSettings):
     # Content-Security-Policy (CSP) - Controls resource loading
     security_header_csp_enabled: bool = Field(default=True, description="Enable CSP header.")
     security_header_csp_value: str = Field(
-        default="default-src 'self'; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline'; img-src 'self' data: https:; font-src 'self' data:;",
+        default=(
+            "default-src 'self'; script-src 'self' 'unsafe-inline';"
+            " style-src 'self' 'unsafe-inline'; img-src 'self' data: https:; font-src 'self' data:;"
+        ),
         description="CSP header value. Customize based on your application's resource loading needs.",
     )
 

app/main.py

@@ -8,6 +8,7 @@ from fastapi import FastAPI, HTTPException, Request, status
 from fastapi.responses import JSONResponse
 from fastapi.staticfiles import StaticFiles
 from fastapi.templating import Jinja2Templates
+from slowapi.errors import RateLimitExceeded
 from starlette.config import Config
 from starlette.middleware.sessions import SessionMiddleware
 from starlette.middleware.trustedhost import TrustedHostMiddleware
@@ -21,7 +22,6 @@ from app.middleware.rate_limit import create_limiter, get_rate_limit_exceeded_ha
 from app.middleware.security_headers import SecurityHeadersMiddleware
 from app.utils.config_validator import check_all_configs
 from app.utils.notification import init_apprise, notify_shutdown, notify_startup
-from slowapi.errors import RateLimitExceeded
 
 # Import the routers - now using views directly instead of frontend
 from app.views import router as frontend_router

app/middleware/rate_limit.py

@@ -21,7 +21,6 @@ from typing import Callable
 
 from fastapi import Request
 from slowapi import Limiter, _rate_limit_exceeded_handler
-from slowapi.errors import RateLimitExceeded
 from slowapi.util import get_remote_address
 
 logger = logging.getLogger(__name__)

app/middleware/rate_limit_decorators.py

@@ -7,10 +7,6 @@ This module provides convenient decorators to apply rate limits to specific endp
 Import the limiter from main.py state and use these decorators to protect endpoints.
 """
 
-from functools import wraps
-
-from fastapi import Request
-
 # Import will happen at runtime to avoid circular dependencies
 _limiter = None
 

app/models.py

@@ -1,6 +1,6 @@
 # app/models.py
 
-from sqlalchemy import Column, DateTime, ForeignKey, Integer, String, Text, UniqueConstraint, func, Boolean
+from sqlalchemy import Boolean, Column, DateTime, ForeignKey, Integer, String, Text, UniqueConstraint, func
 
 from app.database import Base
 

app/tasks/embed_metadata_into_pdf.py

@@ -102,7 +102,11 @@ def embed_metadata_into_pdf(self, local_file_path: str, extracted_text: str, met
         else:
             logger.error(f"[{task_id}] Local file {local_file_path} not found, cannot embed metadata.")
             log_task_progress(
-                task_id, "embed_metadata_into_pdf", "failure", "File not found", file_id=file_id,
+                task_id,
+                "embed_metadata_into_pdf",
+                "failure",
+                "File not found",
+                file_id=file_id,
                 detail=(
                     f"Local file not found, cannot embed metadata.\n"
                     f"Tried path: {local_file_path}\n"
@@ -199,10 +203,7 @@ def embed_metadata_into_pdf(self, local_file_path: str, extracted_text: str, met
         logger.info(f"[{task_id}] Persisting metadata to JSON")
         log_task_progress(task_id, "save_metadata_json", "in_progress", "Saving metadata JSON", file_id=file_id)
         json_path = persist_metadata(
-            metadata, 
-            final_file_path, 
-            original_file_path=original_file_path,
-            processed_file_path=final_file_path
+            metadata, final_file_path, original_file_path=original_file_path, processed_file_path=final_file_path
         )
         logger.info(f"[{task_id}] Metadata persisted to {json_path}")
         log_task_progress(
@@ -212,7 +213,11 @@ def embed_metadata_into_pdf(self, local_file_path: str, extracted_text: str, met
         # Trigger the next step: final storage.
         logger.info(f"[{task_id}] Queueing final storage task")
         log_task_progress(
-            task_id, "embed_metadata_into_pdf", "success", "Metadata embedded, queuing finalization", file_id=file_id,
+            task_id,
+            "embed_metadata_into_pdf",
+            "success",
+            "Metadata embedded, queuing finalization",
+            file_id=file_id,
             detail=(
                 f"Metadata embedded into PDF successfully.\n"
                 f"Original file: {original_file}\n"
@@ -245,8 +250,15 @@ def embed_metadata_into_pdf(self, local_file_path: str, extracted_text: str, met
     except Exception as e:
         logger.exception(f"[{task_id}] Failed to embed metadata into {processed_file}: {e}")
         log_task_progress(
-            task_id, "embed_metadata_into_pdf", "failure", f"Exception: {str(e)}", file_id=file_id,
-            detail=f"Failed to embed metadata into {processed_file}.\nOriginal file: {original_file}\nException: {str(e)}",
+            task_id,
+            "embed_metadata_into_pdf",
+            "failure",
+            f"Exception: {str(e)}",
+            file_id=file_id,
+            detail=(
+                f"Failed to embed metadata into {processed_file}.\n"
+                f"Original file: {original_file}\nException: {str(e)}"
+            ),
         )
         # Clean up temporary file in case of error
         if os.path.exists(processed_file):

app/tasks/extract_metadata_with_gpt.py

@@ -112,7 +112,11 @@ def extract_metadata_with_gpt(self, filename: str, cleaned_text: str, file_id: i
         content = completion.choices[0].message.content
         logger.info(f"[{task_id}] Raw classification response for {filename}: {content[:200]}...")
         log_task_progress(
-            task_id, "call_openai", "success", "Received OpenAI response", file_id=file_id,
+            task_id,
+            "call_openai",
+            "success",
+            "Received OpenAI response",
+            file_id=file_id,
             detail=f"Raw classification response:\n{content}",
         )
 
@@ -120,7 +124,11 @@ def extract_metadata_with_gpt(self, filename: str, cleaned_text: str, file_id: i
         if not json_text:
             logger.error(f"[{task_id}] Could not find valid JSON in GPT response for {filename}.")
             log_task_progress(
-                task_id, "extract_metadata_with_gpt", "failure", "Invalid JSON in response", file_id=file_id,
+                task_id,
+                "extract_metadata_with_gpt",
+                "failure",
+                "Invalid JSON in response",
+                file_id=file_id,
                 detail=f"Could not parse valid JSON from GPT response.\nRaw response:\n{content}",
             )
             return {}
@@ -138,16 +146,18 @@ def extract_metadata_with_gpt(self, filename: str, cleaned_text: str, file_id: i
             # 1. Potential locale-specific \w behavior
             # 2. Files literally named ".." which are valid but problematic
             # 3. Future code changes that might relax the regex
-            if not re.match(r'^[\w\-\. ]+$', suggested_filename) or ".." in suggested_filename:
-                logger.warning(
-                    f"[{task_id}] Invalid filename format from GPT: '{suggested_filename}', using fallback"
-                )
+            if not re.match(r"^[\w\-\. ]+$", suggested_filename) or ".." in suggested_filename:
+                logger.warning(f"[{task_id}] Invalid filename format from GPT: '{suggested_filename}', using fallback")
                 # Reset to empty to trigger fallback to original filename
                 metadata["filename"] = ""
 
         logger.info(f"[{task_id}] Extracted metadata: {metadata}")
         log_task_progress(
-            task_id, "parse_metadata", "success", f"Parsed metadata: {list(metadata.keys())}", file_id=file_id,
+            task_id,
+            "parse_metadata",
+            "success",
+            f"Parsed metadata: {list(metadata.keys())}",
+            file_id=file_id,
             detail=f"Extracted metadata:\n{json.dumps(metadata, ensure_ascii=False, indent=2)}",
         )
 
@@ -164,7 +174,11 @@ def extract_metadata_with_gpt(self, filename: str, cleaned_text: str, file_id: i
     except Exception as e:
         logger.exception(f"[{task_id}] OpenAI classification failed for {filename}: {e}")
         log_task_progress(
-            task_id, "extract_metadata_with_gpt", "failure", f"Exception: {str(e)}", file_id=file_id,
+            task_id,
+            "extract_metadata_with_gpt",
+            "failure",
+            f"Exception: {str(e)}",
+            file_id=file_id,
             detail=f"OpenAI classification failed for {filename}.\nException: {str(e)}",
         )
         return {}

app/tasks/monitor_stalled_steps.py

@@ -42,10 +42,7 @@ def monitor_stalled_steps():
                     f"Marked as failed due to timeout."
                 )
             else:
-                logger.debug(
-                    f"[{datetime.utcnow().isoformat()}] "
-                    f"No stalled steps found."
-                )
+                logger.debug(f"[{datetime.utcnow().isoformat()}] " f"No stalled steps found.")
 
             return {"recovered": stalled_count}
 

app/tasks/process_document.py

@@ -24,7 +24,9 @@ logger = logging.getLogger(__name__)
 
 
 @celery.task(base=BaseTaskWithRetry, bind=True)
-def process_document(self, original_local_file: str, original_filename: str = None, file_id: int = None, force_cloud_ocr: bool = False):
+def process_document(
+    self, original_local_file: str, original_filename: str = None, file_id: int = None, force_cloud_ocr: bool = False
+):
     """
     Process a document file and trigger appropriate text extraction.
 
@@ -58,7 +60,10 @@ def process_document(self, original_local_file: str, original_filename: str = No
     if not os.path.exists(original_local_file):
         logger.error(f"[{task_id}] File {original_local_file} not found.")
         log_task_progress(
-            task_id, "process_document", "failure", "File not found",
+            task_id,
+            "process_document",
+            "failure",
+            "File not found",
             detail=f"File not found on disk: {original_local_file}",
         )
         return {"error": "File not found"}
@@ -113,13 +118,15 @@ def process_document(self, original_local_file: str, original_filename: str = No
         else:
             # Check for duplicate only if this is a new file (not reprocessing)
             # IMPORTANT: Only consider it a duplicate if it matches a DIFFERENT file
-            existing = db.query(FileRecord).filter(FileRecord.filehash == filehash, FileRecord.is_duplicate.is_(False)).order_by(FileRecord.created_at.asc()).first()
+            existing = (
+                db.query(FileRecord)
+                .filter(FileRecord.filehash == filehash, FileRecord.is_duplicate.is_(False))
+                .order_by(FileRecord.created_at.asc())
+                .first()
+            )
             if existing is None:
                 existing = (
-                    db.query(FileRecord)
-                    .filter(FileRecord.filehash == filehash)
-                    .order_by(FileRecord.id.asc())
-                    .first()
+                    db.query(FileRecord).filter(FileRecord.filehash == filehash).order_by(FileRecord.id.asc()).first()
                 )
 
             # A file is only a duplicate if it matches a different file's hash

app/tasks/process_with_azure_document_intelligence.py

@@ -101,8 +101,11 @@ def process_with_azure_document_intelligence(self, filename: str, file_id: int =
     """
     task_id = self.request.id
     log_task_progress(
-        task_id, "process_with_azure_document_intelligence", "in_progress",
-        f"Starting OCR for {filename}", file_id=file_id,
+        task_id,
+        "process_with_azure_document_intelligence",
+        "in_progress",
+        f"Starting OCR for {filename}",
+        file_id=file_id,
     )
     try:
         tmp_file_path = os.path.join(settings.workdir, "tmp", filename)
@@ -117,8 +120,12 @@ def process_with_azure_document_intelligence(self, filename: str, file_id: int =
             )
             logger.error(f"[{task_id}] {error_msg}")
             log_task_progress(
-                task_id, "validate_file", "failure",
-                f"File too large: {filename}", file_id=file_id, detail=error_msg,
+                task_id,
+                "validate_file",
+                "failure",
+                f"File too large: {filename}",
+                file_id=file_id,
+                detail=error_msg,
             )
             return {"error": error_msg, "file": filename, "status": "Failed - Size limit exceeded"}
 
@@ -130,8 +137,12 @@ def process_with_azure_document_intelligence(self, filename: str, file_id: int =
                 error_msg = f"PDF page count ({page_count}) exceeds Azure Document Intelligence limit of 2000 pages"
                 logger.error(f"[{task_id}] {error_msg}")
                 log_task_progress(
-                    task_id, "validate_file", "failure",
-                    f"Too many pages: {filename}", file_id=file_id, detail=error_msg,
+                    task_id,
+                    "validate_file",
+                    "failure",
+                    f"Too many pages: {filename}",
+                    file_id=file_id,
+                    detail=error_msg,
                 )
                 return {"error": error_msg, "file": filename, "status": "Failed - Page limit exceeded"}
             if page_count is None:
@@ -140,14 +151,20 @@ def process_with_azure_document_intelligence(self, filename: str, file_id: int =
                 )
 
         log_task_progress(
-            task_id, "validate_file", "success",
-            f"File validation passed for {filename}", file_id=file_id,
+            task_id,
+            "validate_file",
+            "success",
+            f"File validation passed for {filename}",
+            file_id=file_id,
         )
 
         logger.info(f"[{task_id}] Processing {filename} with Azure Document Intelligence OCR.")
         log_task_progress(
-            task_id, "call_azure_ocr", "in_progress",
-            f"Sending {filename} to Azure Document Intelligence", file_id=file_id,
+            task_id,
+            "call_azure_ocr",
+            "in_progress",
+            f"Sending {filename} to Azure Document Intelligence",
+            file_id=file_id,
         )
 
         # Open and send the document for processing
@@ -173,8 +190,11 @@ def process_with_azure_document_intelligence(self, filename: str, file_id: int =
         logger.info(f"[{task_id}] Extracted text for {filename}: {len(extracted_text)} characters")
 
         log_task_progress(
-            task_id, "call_azure_ocr", "success",
-            f"Azure OCR completed for {filename}", file_id=file_id,
+            task_id,
+            "call_azure_ocr",
+            "success",
+            f"Azure OCR completed for {filename}",
+            file_id=file_id,
             detail=f"Extracted {len(extracted_text)} characters, {len(rotation_data)} rotated pages detected",
         )
 
@@ -182,8 +202,11 @@ def process_with_azure_document_intelligence(self, filename: str, file_id: int =
         rotate_pdf_pages.delay(filename, extracted_text, rotation_data, file_id)
 
         log_task_progress(
-            task_id, "process_with_azure_document_intelligence", "success",
-            f"OCR processing complete for {filename}", file_id=file_id,
+            task_id,
+            "process_with_azure_document_intelligence",
+            "success",
+            f"OCR processing complete for {filename}",
+            file_id=file_id,
             detail=f"Searchable PDF saved, {len(extracted_text)} characters extracted",
         )
 
@@ -191,7 +214,11 @@ def process_with_azure_document_intelligence(self, filename: str, file_id: int =
     except Exception as e:
         logger.error(f"[{task_id}] Error processing {filename} with Azure Document Intelligence: {e}")
         log_task_progress(
-            task_id, "process_with_azure_document_intelligence", "failure",
-            f"OCR failed for {filename}", file_id=file_id, detail=str(e),
+            task_id,
+            "process_with_azure_document_intelligence",
+            "failure",
+            f"OCR failed for {filename}",
+            file_id=file_id,
+            detail=str(e),
         )
         raise

app/tasks/rotate_pdf_pages.py

@@ -63,8 +63,11 @@ def rotate_pdf_pages(self, filename: str, extracted_text: str, rotation_data=Non
     try:
         task_id = self.request.id
         log_task_progress(
-            task_id, "rotate_pdf_pages", "in_progress",
-            f"Checking page rotation for {filename}", file_id=file_id,
+            task_id,
+            "rotate_pdf_pages",
+            "in_progress",
+            f"Checking page rotation for {filename}",
+            file_id=file_id,
         )
         pdf_path = os.path.join(settings.workdir, "tmp", filename)
         if not os.path.exists(pdf_path):
@@ -72,12 +75,13 @@ def rotate_pdf_pages(self, filename: str, extracted_text: str, rotation_data=Non
 
         # Skip rotation if no rotation data provided
         if not rotation_data:
-            logger.info(
-                f"[{task_id}] No rotation data provided for {filename}, proceeding with metadata extraction"
-            )
+            logger.info(f"[{task_id}] No rotation data provided for {filename}, proceeding with metadata extraction")
             log_task_progress(
-                task_id, "rotate_pdf_pages", "success",
-                "No rotation needed, proceeding to metadata extraction", file_id=file_id,
+                task_id,
+                "rotate_pdf_pages",
+                "success",
+                "No rotation needed, proceeding to metadata extraction",
+                file_id=file_id,
             )
             extract_metadata_with_gpt.delay(filename, extracted_text, file_id)
             return {"file": filename, "status": "no_rotation_needed"}
@@ -95,16 +99,22 @@ def rotate_pdf_pages(self, filename: str, extracted_text: str, rotation_data=Non
                 f"[{task_id}] No significant rotations detected in {filename}, proceeding with metadata extraction"
             )
             log_task_progress(
-                task_id, "rotate_pdf_pages", "success",
-                "No rotation needed, proceeding to metadata extraction", file_id=file_id,
+                task_id,
+                "rotate_pdf_pages",
+                "success",
+                "No rotation needed, proceeding to metadata extraction",
+                file_id=file_id,
             )
             extract_metadata_with_gpt.delay(filename, extracted_text, file_id)
             return {"file": filename, "status": "no_rotation_needed"}
 
         logger.info(f"[{task_id}] Rotating {len(normalized_rotation_data)} pages in {filename}")
         log_task_progress(
-            task_id, "apply_rotation", "in_progress",
-            f"Rotating {len(normalized_rotation_data)} pages", file_id=file_id,
+            task_id,
+            "apply_rotation",
+            "in_progress",
+            f"Rotating {len(normalized_rotation_data)} pages",
+            file_id=file_id,
         )
         applied_rotations = {}
 
@@ -144,8 +154,7 @@ def rotate_pdf_pages(self, filename: str, extracted_text: str, rotation_data=Non
 
         if applied_rotations:
             logger.info(
-                f"[{task_id}] Successfully rotated PDF: {filename} with rotations: "
-                f"{json.dumps(applied_rotations)}"
+                f"[{task_id}] Successfully rotated PDF: {filename} with rotations: " f"{json.dumps(applied_rotations)}"
             )
         else:
             logger.info(
@@ -157,7 +166,9 @@ def rotate_pdf_pages(self, filename: str, extracted_text: str, rotation_data=Non
         extract_metadata_with_gpt.delay(filename, extracted_text, file_id)
 
         log_task_progress(
-            task_id, "rotate_pdf_pages", "success",
+            task_id,
+            "rotate_pdf_pages",
+            "success",
             f"Rotation complete for {filename}",
             file_id=file_id,
             detail={"applied_rotations": applied_rotations},
@@ -173,7 +184,9 @@ def rotate_pdf_pages(self, filename: str, extracted_text: str, rotation_data=Non
     except Exception as e:
         logger.error(f"[{task_id}] Error rotating PDF {filename}: {e}")
         log_task_progress(
-            task_id, "rotate_pdf_pages", "failure",
+            task_id,
+            "rotate_pdf_pages",
+            "failure",
             f"Rotation failed: {str(e)}",
             file_id=file_id,
             detail={"error": str(e), "filename": filename},

app/tasks/upload_to_paperless.py

@@ -274,8 +274,15 @@ def upload_to_paperless(self, file_path: str, file_id: int = None):
                 response_text,
             )
             log_task_progress(
-                task_id, "upload_to_paperless", "failure", error_msg, file_id=file_id,
-                detail=f"Failed to upload document to Paperless.\nFile: {file_path}\nError: {exc}\nResponse: {response_text}",
+                task_id,
+                "upload_to_paperless",
+                "failure",
+                error_msg,
+                file_id=file_id,
+                detail=(
+                    f"Failed to upload document to Paperless.\n"
+                    f"File: {file_path}\nError: {exc}\nResponse: {response_text}"
+                ),
             )
             raise
 
@@ -322,9 +329,9 @@ def upload_to_paperless(self, file_path: str, file_id: int = None):
             # Map each metadata field to its corresponding Paperless custom field
             for metadata_field, paperless_field in field_mapping.items():
                 if metadata_field in metadata and metadata[metadata_field]:
-                    # Convert to string to ensure consistent comparison with UNKNOWN_VALUE
+                    # Convert to string to ensure consistent comparison
                     value = str(metadata[metadata_field]) if metadata[metadata_field] is not None else ""
-                    if value and value != UNKNOWN_VALUE:
+                    if value and value != METADATA_UNKNOWN_PLACEHOLDER:
                         custom_fields_to_set[paperless_field] = value
                         logger.debug(f"[{task_id}] Mapping {metadata_field}='{value}' to field '{paperless_field}'")
         except json.JSONDecodeError as e:

app/tasks/upload_with_rclone.py

@@ -103,9 +103,7 @@ def upload_with_rclone(self, file_path: str, destination: str):
     except (OSError, ValueError) as e:
         error_msg = f"Error uploading {filename} to {destination}: {str(e)}"
         logger.error(f"[{task_id}] {error_msg}")
-        log_task_progress(
-            task_id, "upload_with_rclone", "failure", f"Upload failed for {filename}", detail=error_msg
-        )
+        log_task_progress(task_id, "upload_with_rclone", "failure", f"Upload failed for {filename}", detail=error_msg)
         raise RuntimeError(error_msg) from e
 
 

app/utils/file_queries.py

@@ -10,7 +10,7 @@ from typing import Optional
 from sqlalchemy import or_
 from sqlalchemy.orm import Query, Session
 
-from app.models import FileRecord, FileProcessingStep
+from app.models import FileProcessingStep, FileRecord
 
 
 def apply_status_filter(query: Query, db: Session, status: Optional[str]) -> Query:
@@ -81,10 +81,7 @@ def apply_status_filter(query: Query, db: Session, status: Optional[str]) -> Que
         REAL_STEPS.add("check_for_duplicates")
 
     # Filter to only real steps
-    real_steps_subq = (
-        db.query(FileProcessingStep)
-        .filter(FileProcessingStep.step_name.in_(REAL_STEPS))
-    )
+    real_steps_subq = db.query(FileProcessingStep).filter(FileProcessingStep.step_name.in_(REAL_STEPS))
 
     if status == "pending":
         # Files with no real steps (never started processing)
@@ -108,8 +105,9 @@ def apply_status_filter(query: Query, db: Session, status: Optional[str]) -> Que
 
         # Get files with failures or in_progress on real steps
         files_with_issues = (
-            real_steps_subq
-            .filter(or_(FileProcessingStep.status == "failure", FileProcessingStep.status == "in_progress"))
+            real_steps_subq.filter(
+                or_(FileProcessingStep.status == "failure", FileProcessingStep.status == "in_progress")
+            )
             .distinct()
             .subquery()
         )

app/utils/file_status.py

@@ -7,7 +7,7 @@ from typing import Dict, List
 from sqlalchemy.orm import Session
 
 from app.models import FileProcessingStep, FileRecord, ProcessingLog
-from app.utils.step_manager import get_file_overall_status, get_step_summary
+from app.utils.step_manager import get_file_overall_status
 
 
 def get_file_processing_status(db: Session, file_id: int) -> Dict:

app/utils/migrate_logs_to_steps.py

@@ -6,14 +6,11 @@ for files that were processed before the status tracking table was created.
 """
 
 import logging
-from datetime import datetime
 from typing import Dict, List
 
-from sqlalchemy import func
 from sqlalchemy.orm import Session
 
-from app.models import FileProcessingStep, FileRecord, ProcessingLog
-from app.utils.step_manager import MAIN_PROCESSING_STEPS
+from app.models import FileProcessingStep, ProcessingLog
 
 logger = logging.getLogger(__name__)
 

app/utils/step_manager.py

@@ -220,10 +220,9 @@ def get_file_overall_status(db: Session, file_id: int) -> Dict:
 
     # Filter to only real steps
     steps = [
-        s for s in all_steps
-        if s.step_name in REAL_MAIN_STEPS 
-        or s.step_name.startswith("queue_")
-        or s.step_name.startswith("upload_to_")
+        s
+        for s in all_steps
+        if s.step_name in REAL_MAIN_STEPS or s.step_name.startswith("queue_") or s.step_name.startswith("upload_to_")
     ]
 
     if not steps:
@@ -341,4 +340,3 @@ def get_step_summary(db: Session, file_id: int) -> Dict:
         "total_main_steps": main_steps_count,
         "total_upload_tasks": upload_steps_count,
     }
-

app/utils/step_timeout.py

@@ -32,9 +32,7 @@ def get_step_timeout() -> int:
 
 
 def mark_stalled_steps_as_failed(
-    db: Session, 
-    timeout_seconds: Optional[int] = None,
-    file_id: Optional[int] = None
+    db: Session, timeout_seconds: Optional[int] = None, file_id: Optional[int] = None
 ) -> int:
     """
     Find and mark any in-progress steps that have exceeded the timeout as failed.
@@ -75,8 +73,7 @@ def mark_stalled_steps_as_failed(
         return 0
 
     logger.warning(
-        f"Found {len(stalled_steps)} stalled step(s) that exceeded "
-        f"{timeout_seconds}s timeout. Marking as failed."
+        f"Found {len(stalled_steps)} stalled step(s) that exceeded " f"{timeout_seconds}s timeout. Marking as failed."
     )
 
     count = 0

app/views/files.py

@@ -2,13 +2,11 @@
 File management views for displaying and managing files.
 """
 
-import os
 from typing import Optional
 
 from fastapi import Depends, Query, Request
 from sqlalchemy.orm import Session
 
-from app.config import settings
 from app.utils.file_queries import apply_status_filter
 from app.utils.file_status import get_files_processing_status
 from app.views.base import APIRouter, get_db, logger, require_login, templates
@@ -34,9 +32,9 @@ def files_page(
     """
     try:
         # Import the model here to avoid circular imports
-        from sqlalchemy import asc, desc, or_
+        from sqlalchemy import asc, desc
 
-        from app.models import FileRecord, ProcessingLog
+        from app.models import FileRecord
 
         # Start with base query
         query = db.query(FileRecord)
@@ -236,6 +234,7 @@ def _compute_processing_flow(logs):
 
     # Filter out deduplication step if not enabled or if not showing it
     from app.config import settings
+
     if not settings.enable_deduplication or not settings.show_deduplication_step:
         stages.pop("check_for_duplicates", None)
         # Update the next pointer for create_file_record
@@ -359,16 +358,18 @@ def _compute_step_summary(logs):
     main_steps = []
     if settings.enable_deduplication and settings.show_deduplication_step:
         main_steps.append("check_for_duplicates")
-    main_steps.extend([
-        "create_file_record",
-        "check_text",
-        "extract_text",
-        "process_with_azure_document_intelligence",
-        "extract_metadata_with_gpt",
-        "embed_metadata_into_pdf",
-        "finalize_document_storage",
-        "send_to_all_destinations",
-    ])
+    main_steps.extend(
+        [
+            "create_file_record",
+            "check_text",
+            "extract_text",
+            "process_with_azure_document_intelligence",
+            "extract_metadata_with_gpt",
+            "embed_metadata_into_pdf",
+            "finalize_document_storage",
+            "send_to_all_destinations",
+        ]
+    )
 
     upload_prefixes = ["upload_to_", "queue_"]
 

tests/fixtures_integration.py

@@ -14,16 +14,17 @@ These tests exercise the full application stack end-to-end.
 
 import os
 import time
-import pytest
-from typing import Generator
 from pathlib import Path
+from typing import Generator
+
+import pytest
 
 # Import testcontainers
 pytest.importorskip("testcontainers", reason="testcontainers not installed")
 from testcontainers.core.container import DockerContainer
+from testcontainers.minio import MinioContainer
 from testcontainers.postgres import PostgresContainer
 from testcontainers.redis import RedisContainer
-from testcontainers.minio import MinioContainer
 
 _TEST_CREDENTIAL = "testpass"  # noqa: S105
 
@@ -300,6 +301,7 @@ def db_session_real(postgres_container):
     """
     from sqlalchemy import create_engine
     from sqlalchemy.orm import sessionmaker
+
     from app.database import Base
 
     # Create engine using PostgreSQL container

tests/test_api_common.py

@@ -1,8 +1,10 @@
 """Tests for app/api/common.py module."""
+
 import os
-import pytest
 from unittest.mock import patch
 
+import pytest
+
 from app.api.common import resolve_file_path
 
 

tests/test_api_error_handling.py

@@ -2,10 +2,12 @@
 Tests for API error handling - ensuring JSON responses for API routes.
 """
 
+from unittest.mock import patch
+
 import pytest
 from fastapi.testclient import TestClient
+
 from app.models import FileRecord
-from unittest.mock import patch
 
 
 @pytest.mark.integration

tests/test_api_logs.py

@@ -1,7 +1,9 @@
 """Tests for app/api/logs.py module."""
-import pytest
+
 from datetime import datetime
 
+import pytest
+
 from app.models import FileRecord, ProcessingLog
 
 

tests/test_api_openai.py

@@ -1,4 +1,5 @@
 """Tests for app/api/openai.py module."""
+
 import pytest
 
 

tests/test_api_process.py

@@ -1,4 +1,5 @@
 """Tests for app/api/process.py module."""
+
 import pytest
 
 
@@ -44,6 +45,7 @@ class TestProcessEndpoints:
     def test_processall_endpoint(self, client, tmp_path):
         """Test POST /api/processall with no PDF files in workdir."""
         from unittest.mock import patch
+
         with patch("app.api.process.settings") as mock_settings:
             mock_settings.workdir = str(tmp_path)
             response = client.post("/api/processall")

tests/test_api_settings.py

@@ -1,6 +1,8 @@
 """Tests for app/api/settings.py module."""
+
+from unittest.mock import MagicMock, patch
+
 import pytest
-from unittest.mock import patch, MagicMock
 from fastapi import HTTPException
 
 from app.api.settings import require_admin

tests/test_api_user.py

@@ -1,8 +1,10 @@
 """Tests for app/api/user.py module."""
-import pytest
+
 from hashlib import md5
 from unittest.mock import MagicMock
 
+import pytest
+
 from app.api.user import whoami_handler
 
 

tests/test_auth_integration.py

@@ -1,9 +1,11 @@
 """Integration tests for auth.py with AUTH_ENABLED=True scenarios."""
-import pytest
-from unittest.mock import patch, MagicMock, AsyncMock
-import hashlib
 
-from app.auth import get_gravatar_url, get_current_user, require_login
+import hashlib
+from unittest.mock import AsyncMock, MagicMock, patch
+
+import pytest
+
+from app.auth import get_current_user, get_gravatar_url, require_login
 
 
 @pytest.mark.unit
@@ -20,8 +22,9 @@ class TestRequireLoginWithAuth:
                 return {"success": True}
 
             # Manually create the decorator behavior
-            from functools import wraps
             import inspect
+            from functools import wraps
+
             from fastapi import status
             from starlette.responses import RedirectResponse
 
@@ -45,10 +48,11 @@ class TestRequireLoginWithAuth:
     @pytest.mark.asyncio
     async def test_require_login_allows_authenticated_user(self):
         """Test that require_login allows through when user exists in session."""
-        from functools import wraps
         import inspect
-        from starlette.responses import RedirectResponse
+        from functools import wraps
+
         from fastapi import status
+        from starlette.responses import RedirectResponse
 
         async def my_route(request):
             return {"success": True}

tests/test_check_credentials.py

@@ -1,8 +1,10 @@
 """Tests for app/tasks/check_credentials.py module."""
+
 import json
 import os
+from unittest.mock import MagicMock, patch
+
 import pytest
-from unittest.mock import patch, MagicMock
 
 from app.tasks.check_credentials import (
     MockRequest,
@@ -95,6 +97,7 @@ class TestUnwrapDecoratedFunction:
 
     def test_returns_same_function_if_not_decorated(self):
         """Test returns same function if not decorated."""
+
         def my_func():
             return "hello"
 
@@ -103,6 +106,7 @@ class TestUnwrapDecoratedFunction:
 
     def test_unwraps_decorated_function(self):
         """Test unwraps decorated function."""
+
         def inner():
             return "hello"
 
@@ -116,6 +120,7 @@ class TestUnwrapDecoratedFunction:
 
     def test_unwraps_multiple_levels(self):
         """Test unwraps multiple levels of decoration."""
+
         def original():
             return "hello"
 

tests/test_check_credentials_extended.py

@@ -1,13 +1,15 @@
 """Extended tests for app/tasks/check_credentials.py module."""
+
+from unittest.mock import MagicMock, patch
+
 import pytest
-from unittest.mock import patch, MagicMock
 
 from app.tasks.check_credentials import (
-    sync_test_openai_connection,
     sync_test_azure_connection,
     sync_test_dropbox_token,
     sync_test_google_drive_token,
     sync_test_onedrive_token,
+    sync_test_openai_connection,
 )
 
 

tests/test_config.py

@@ -1,9 +1,12 @@
 """
 Unit tests for configuration and security validation.
 """
-import pytest
+
 import os
+
+import pytest
 from pydantic import ValidationError
+
 from app.config import Settings
 
 
@@ -24,7 +27,7 @@ class TestConfigurationValidation:
                 gotenberg_url="http://localhost:3000",
                 workdir="/tmp",
                 auth_enabled=True,
-                session_secret=None
+                session_secret=None,
             )
         assert "SESSION_SECRET must be set" in str(exc_info.value)
 
@@ -41,7 +44,7 @@ class TestConfigurationValidation:
                 gotenberg_url="http://localhost:3000",
                 workdir="/tmp",
                 auth_enabled=True,
-                session_secret="short"
+                session_secret="short",
             )
         assert "at least 32 characters" in str(exc_info.value)
 
@@ -57,7 +60,7 @@ class TestConfigurationValidation:
             gotenberg_url="http://localhost:3000",
             workdir="/tmp",
             auth_enabled=True,
-            session_secret="a" * 32  # 32 character secret
+            session_secret="a" * 32,  # 32 character secret
         )
         assert config.auth_enabled is True
         assert len(config.session_secret) == 32
@@ -74,14 +77,12 @@ class TestConfigurationValidation:
             gotenberg_url="http://localhost:3000",
             workdir="/tmp",
             auth_enabled=False,
-            session_secret=None
+            session_secret=None,
         )
         assert config.auth_enabled is False
         assert config.session_secret is None
 
 
-
-
 @pytest.mark.unit
 class TestBuildMetadataConfiguration:
     """Tests for build metadata configuration."""
@@ -98,7 +99,7 @@ class TestBuildMetadataConfiguration:
             azure_endpoint="https://test.example.com",
             gotenberg_url="http://localhost:3000",
             workdir="/tmp",
-            auth_enabled=False
+            auth_enabled=False,
         )
         assert config.version == "1.2.3-test"
 
@@ -114,7 +115,7 @@ class TestBuildMetadataConfiguration:
             azure_endpoint="https://test.example.com",
             gotenberg_url="http://localhost:3000",
             workdir="/tmp",
-            auth_enabled=False
+            auth_enabled=False,
         )
         assert config.build_date == "2026-01-15"
 
@@ -130,7 +131,7 @@ class TestBuildMetadataConfiguration:
             azure_endpoint="https://test.example.com",
             gotenberg_url="http://localhost:3000",
             workdir="/tmp",
-            auth_enabled=False
+            auth_enabled=False,
         )
         assert config.build_date == "2026-01-15T10:30:00Z"
 
@@ -146,7 +147,7 @@ class TestBuildMetadataConfiguration:
             azure_endpoint="https://test.example.com",
             gotenberg_url="http://localhost:3000",
             workdir="/tmp",
-            auth_enabled=False
+            auth_enabled=False,
         )
         assert config.git_sha == "abc1234"
 
@@ -154,7 +155,8 @@ class TestBuildMetadataConfiguration:
         """Test that git_sha defaults to 'unknown' when not set."""
         # Mock the file system to ensure no GIT_SHA file exists
         import app.config
-        monkeypatch.setattr(app.config.os.path, 'dirname', lambda x: str(tmp_path))
+
+        monkeypatch.setattr(app.config.os.path, "dirname", lambda x: str(tmp_path))
 
         config = Settings(
             database_url="sqlite:///test.db",
@@ -165,7 +167,7 @@ class TestBuildMetadataConfiguration:
             azure_endpoint="https://test.example.com",
             gotenberg_url="http://localhost:3000",
             workdir="/tmp",
-            auth_enabled=False
+            auth_enabled=False,
         )
         # When no file or env var exists, should return "unknown"
         assert config.git_sha == "unknown"
@@ -173,7 +175,8 @@ class TestBuildMetadataConfiguration:
     def test_version_default_when_no_file_or_env(self, monkeypatch, tmp_path):
         """Test that version defaults to 'unknown' when no VERSION file or env var exists."""
         import app.config
-        monkeypatch.setattr(app.config.os.path, 'dirname', lambda x: str(tmp_path))
+
+        monkeypatch.setattr(app.config.os.path, "dirname", lambda x: str(tmp_path))
 
         config = Settings(
             database_url="sqlite:///test.db",
@@ -184,7 +187,7 @@ class TestBuildMetadataConfiguration:
             azure_endpoint="https://test.example.com",
             gotenberg_url="http://localhost:3000",
             workdir="/tmp",
-            auth_enabled=False
+            auth_enabled=False,
         )
         # When no file or env var exists, should return "unknown"
         assert config.version == "unknown"
@@ -200,7 +203,7 @@ class TestBuildMetadataConfiguration:
             azure_endpoint="https://test.example.com",
             gotenberg_url="http://localhost:3000",
             workdir="/tmp",
-            auth_enabled=False
+            auth_enabled=False,
         )
         runtime_info = config.runtime_info
         # Should contain version, build_date, and git_sha in some form
@@ -223,7 +226,7 @@ class TestNotificationConfiguration:
             gotenberg_url="http://localhost:3000",
             workdir="/tmp",
             auth_enabled=False,
-            notification_urls="discord://webhook1,telegram://webhook2"
+            notification_urls="discord://webhook1,telegram://webhook2",
         )
         assert len(config.notification_urls) == 2
         assert "discord://webhook1" in config.notification_urls
@@ -241,7 +244,7 @@ class TestNotificationConfiguration:
             gotenberg_url="http://localhost:3000",
             workdir="/tmp",
             auth_enabled=False,
-            notification_urls=["discord://webhook1", "telegram://webhook2"]
+            notification_urls=["discord://webhook1", "telegram://webhook2"],
         )
         assert len(config.notification_urls) == 2
 
@@ -263,7 +266,7 @@ class TestSecurityConfiguration:
             azure_endpoint="https://test.example.com",
             gotenberg_url="http://localhost:3000",
             workdir="/tmp",
-            auth_enabled=False
+            auth_enabled=False,
         )
 
         # Ensure optional credentials are actually optional (None)
@@ -283,7 +286,7 @@ class TestSecurityConfiguration:
             azure_endpoint="https://test.example.com",
             gotenberg_url="http://localhost:3000",
             workdir="/tmp",
-            auth_enabled=False
+            auth_enabled=False,
         )
 
         # Should not raise an error

tests/test_config_loader.py

@@ -1,4 +1,5 @@
 """Tests for app/utils/config_loader.py module."""
+
 import pytest
 
 from app.utils.config_loader import convert_setting_value

tests/test_config_validators.py

@@ -1,12 +1,14 @@
 """Tests for app/utils/config_validator/validators.py module."""
-import pytest
+
 from unittest.mock import patch
 
+import pytest
+
 from app.utils.config_validator.validators import (
-    validate_storage_configs,
+    check_all_configs,
     validate_email_config,
     validate_notification_config,
-    check_all_configs,
+    validate_storage_configs,
 )
 
 

tests/test_convert_to_pdf.py

@@ -1,7 +1,9 @@
 """Tests for app/tasks/convert_to_pdf.py module."""
+
 import os
+from unittest.mock import MagicMock, patch
+
 import pytest
-from unittest.mock import patch, MagicMock
 
 
 @pytest.mark.unit
@@ -11,6 +13,7 @@ class TestConvertToPdfMimeTypes:
     def test_office_extensions_set(self):
         """Test that the task module is importable."""
         from app.tasks.convert_to_pdf import convert_to_pdf
+
         assert callable(convert_to_pdf)
 
     @patch("app.tasks.convert_to_pdf.requests")
@@ -25,6 +28,7 @@ class TestConvertToPdfMimeTypes:
             mock_self.request.id = "test-task-id"
 
             from app.tasks.convert_to_pdf import convert_to_pdf
+
             result = convert_to_pdf.__wrapped__(mock_self, "/tmp/test.docx")
             assert result is None
 
@@ -46,5 +50,6 @@ class TestConvertToPdfMimeTypes:
             mock_self.request.id = "test-task-id"
 
             from app.tasks.convert_to_pdf import convert_to_pdf
+
             result = convert_to_pdf.__wrapped__(mock_self, str(test_file))
             assert result is None

tests/test_coverage_boost.py

@@ -1,6 +1,8 @@
 """Tests to boost coverage for various small modules."""
+
+from unittest.mock import MagicMock, patch
+
 import pytest
-from unittest.mock import patch, MagicMock
 
 
 @pytest.mark.unit
@@ -10,11 +12,13 @@ class TestUtilsCompat:
     def test_imports_hash_file(self):
         """Test that hash_file can be imported from utils."""
         from app.utils import hash_file
+
         assert callable(hash_file)
 
     def test_imports_log_task_progress(self):
         """Test that log_task_progress can be imported from utils."""
         from app.utils import log_task_progress
+
         assert callable(log_task_progress)
 
 
@@ -25,31 +29,37 @@ class TestConfigValidatorCompat:
     def test_imports_validate_email_config(self):
         """Test backward compatible import."""
         from app.utils.config_validator import validate_email_config
+
         assert callable(validate_email_config)
 
     def test_imports_validate_storage_configs(self):
         """Test backward compatible import."""
         from app.utils.config_validator import validate_storage_configs
+
         assert callable(validate_storage_configs)
 
     def test_imports_mask_sensitive_value(self):
         """Test backward compatible import."""
         from app.utils.config_validator import mask_sensitive_value
+
         assert callable(mask_sensitive_value)
 
     def test_imports_get_provider_status(self):
         """Test backward compatible import."""
         from app.utils.config_validator import get_provider_status
+
         assert callable(get_provider_status)
 
     def test_imports_dump_all_settings(self):
         """Test backward compatible import."""
         from app.utils.config_validator import dump_all_settings
+
         assert callable(dump_all_settings)
 
     def test_imports_check_all_configs(self):
         """Test backward compatible import."""
         from app.utils.config_validator import check_all_configs
+
         assert callable(check_all_configs)
 
 
@@ -60,6 +70,7 @@ class TestCeleryWorkerImport:
     def test_celery_worker_module_exists(self):
         """Test that celery_worker module can be found."""
         import importlib
+
         spec = importlib.util.find_spec("app.celery_worker")
         assert spec is not None
 
@@ -71,22 +82,26 @@ class TestSettingsDisplayMasking:
     def test_dump_all_settings_masks_passwords(self):
         """Test that passwords are masked in settings dump."""
         from app.utils.config_validator.settings_display import dump_all_settings
+
         # Should not raise
         dump_all_settings()
 
     def test_dump_all_settings_masks_tokens(self):
         """Test that tokens are masked in settings dump."""
         from app.utils.config_validator.settings_display import dump_all_settings
+
         dump_all_settings()
 
     def test_dump_all_settings_masks_keys(self):
         """Test that API keys are masked in settings dump."""
         from app.utils.config_validator.settings_display import dump_all_settings
+
         dump_all_settings()
 
     def test_get_settings_for_display_categories(self):
         """Test that all expected categories are returned."""
         from app.utils.config_validator.settings_display import get_settings_for_display
+
         result = get_settings_for_display(show_values=True)
         # Should have multiple categories
         assert len(result) > 3
@@ -102,6 +117,7 @@ class TestNotificationInit:
         """Test init_apprise when no URLs configured."""
         mock_settings.notification_urls = []
         from app.utils.notification import init_apprise
+
         result = init_apprise()
         assert result is not None
 
@@ -111,6 +127,7 @@ class TestNotificationInit:
         """Test init_apprise with URLs configured."""
         mock_settings.notification_urls = ["json://localhost"]
         from app.utils.notification import init_apprise
+
         result = init_apprise()
         assert result is not None
 
@@ -127,6 +144,7 @@ class TestNotificationFileProcessed:
         mock_send.return_value = True
 
         from app.utils.notification import notify_file_processed
+
         result = notify_file_processed(
             filename="test.pdf",
             file_size=1048576,
@@ -144,6 +162,7 @@ class TestNotificationFileProcessed:
         mock_send.return_value = True
 
         from app.utils.notification import notify_file_processed
+
         result = notify_file_processed(
             filename="small.pdf",
             file_size=512,  # Less than 1KB
@@ -165,6 +184,7 @@ class TestNotificationCeleryFailure:
         mock_send.return_value = True
 
         from app.utils.notification import notify_celery_failure
+
         result = notify_celery_failure(
             task_name="process_document",
             task_id="task-123",
@@ -188,6 +208,7 @@ class TestNotificationCredentialFailure:
         mock_send.return_value = True
 
         from app.utils.notification import notify_credential_failure
+
         result = notify_credential_failure(
             service_name="OpenAI",
             error="Invalid API key",
@@ -208,6 +229,7 @@ class TestNotificationStartupShutdown:
         mock_send.return_value = True
 
         from app.utils.notification import notify_startup
+
         result = notify_startup()
         assert result is True
 
@@ -220,5 +242,6 @@ class TestNotificationStartupShutdown:
         mock_send.return_value = True
 
         from app.utils.notification import notify_shutdown
+
         result = notify_shutdown()
         assert result is True

tests/test_coverage_final.py

@@ -1,6 +1,8 @@
 """Final tests to push coverage over 60%."""
+
+from unittest.mock import MagicMock, patch
+
 import pytest
-from unittest.mock import patch, MagicMock
 
 
 @pytest.mark.unit
@@ -10,6 +12,7 @@ class TestCheckCredentialsFunctions:
     def test_sync_test_openai_connection(self):
         """Test sync_test_openai_connection."""
         from app.tasks.check_credentials import sync_test_openai_connection
+
         result = sync_test_openai_connection()
         assert isinstance(result, dict)
         assert "status" in result
@@ -17,6 +20,7 @@ class TestCheckCredentialsFunctions:
     def test_sync_test_azure_connection(self):
         """Test sync_test_azure_connection."""
         from app.tasks.check_credentials import sync_test_azure_connection
+
         result = sync_test_azure_connection()
         assert isinstance(result, dict)
         assert "status" in result
@@ -24,6 +28,7 @@ class TestCheckCredentialsFunctions:
     def test_sync_test_dropbox_token(self):
         """Test sync_test_dropbox_token."""
         from app.tasks.check_credentials import sync_test_dropbox_token
+
         result = sync_test_dropbox_token()
         assert isinstance(result, dict)
         assert "status" in result
@@ -31,6 +36,7 @@ class TestCheckCredentialsFunctions:
     def test_sync_test_google_drive_token(self):
         """Test sync_test_google_drive_token."""
         from app.tasks.check_credentials import sync_test_google_drive_token
+
         result = sync_test_google_drive_token()
         assert isinstance(result, dict)
         assert "status" in result
@@ -38,6 +44,7 @@ class TestCheckCredentialsFunctions:
     def test_sync_test_onedrive_token(self):
         """Test sync_test_onedrive_token."""
         from app.tasks.check_credentials import sync_test_onedrive_token
+
         result = sync_test_onedrive_token()
         assert isinstance(result, dict)
         assert "status" in result
@@ -45,29 +52,34 @@ class TestCheckCredentialsFunctions:
     def test_sync_test_nextcloud_credentials(self):
         """Test that check_credentials module has check_credentials task."""
         from app.tasks.check_credentials import check_credentials
+
         assert callable(check_credentials)
 
     def test_sync_test_sftp_credentials(self):
         """Test MockRequest scope attribute."""
         from app.tasks.check_credentials import MockRequest
+
         req = MockRequest()
         assert hasattr(req, "session")
 
     def test_sync_test_email_credentials(self):
         """Test MockRequest path_params attribute."""
         from app.tasks.check_credentials import MockRequest
+
         req = MockRequest()
         assert isinstance(req.query_params, dict)
 
     def test_sync_test_ftp_credentials(self):
         """Test MockRequest headers attribute."""
         from app.tasks.check_credentials import MockRequest
+
         req = MockRequest()
         assert isinstance(req.headers, dict)
 
     def test_sync_test_paperless_credentials(self):
         """Test get_failure_state returns dict."""
         from app.tasks.check_credentials import get_failure_state
+
         result = get_failure_state()
         assert isinstance(result, dict)
 
@@ -75,7 +87,9 @@ class TestCheckCredentialsFunctions:
         """Test save_failure_state accepts dict."""
         import os
         from unittest.mock import patch
+
         from app.tasks.check_credentials import save_failure_state
+
         with patch("app.tasks.check_credentials.FAILURE_STATE_FILE", "/tmp/test_failure_state_final.json"):
             save_failure_state({"test": "value"})
             if os.path.exists("/tmp/test_failure_state_final.json"):
@@ -89,6 +103,7 @@ class TestImapPullInboxes:
     def test_pull_all_inboxes_is_callable(self):
         """Test that pull_all_inboxes is callable."""
         from app.tasks.imap_tasks import pull_all_inboxes
+
         assert callable(pull_all_inboxes)
 
 
@@ -99,6 +114,7 @@ class TestViewsProviderStatus:
     def test_get_provider_status_returns_dict(self):
         """Test get_provider_status."""
         from app.utils.config_validator.providers import get_provider_status
+
         result = get_provider_status()
         assert isinstance(result, dict)
         assert len(result) > 0
@@ -111,6 +127,7 @@ class TestSettingsService:
     def test_get_settings_by_category(self):
         """Test get_settings_by_category."""
         from app.utils.settings_service import get_settings_by_category
+
         result = get_settings_by_category()
         assert isinstance(result, dict)
         assert len(result) > 0
@@ -118,12 +135,14 @@ class TestSettingsService:
     def test_get_setting_metadata(self):
         """Test get_setting_metadata for a known key."""
         from app.utils.settings_service import get_setting_metadata
+
         result = get_setting_metadata("openai_api_key")
         assert isinstance(result, dict)
 
     def test_validate_setting_value(self):
         """Test validate_setting_value."""
         from app.utils.settings_service import validate_setting_value
+
         # Should return tuple of (is_valid, error_message or None)
         result = validate_setting_value("openai_api_key", "test-key")
         assert isinstance(result, tuple)

tests/test_database.py

@@ -1,9 +1,11 @@
 """Tests for app/database.py module."""
-import os
-import pytest
-from unittest.mock import patch, MagicMock
 
-from app.database import init_db, get_db
+import os
+from unittest.mock import MagicMock, patch
+
+import pytest
+
+from app.database import get_db, init_db
 
 
 @pytest.mark.unit

tests/test_diagnostic.py

@@ -1,4 +1,5 @@
 """Tests for app/api/diagnostic.py module."""
+
 import pytest
 
 

tests/test_e2e_full_stack.py

@@ -7,9 +7,10 @@ and test the complete application workflow from API request to file upload.
 
 import os
 import time
+from unittest.mock import patch
+
 import pytest
 import requests
-from unittest.mock import patch
 
 # Import testcontainers requirement
 pytest.importorskip("testcontainers", reason="testcontainers not installed")
@@ -22,16 +23,16 @@ except ModuleNotFoundError:
     _has_psycopg2 = False
 
 from tests.fixtures_integration import (
-    postgres_container,
-    redis_container,
-    gotenberg_container,
-    webdav_container,
-    sftp_container,
-    minio_container,
-    full_infrastructure,
     celery_app,
     celery_worker,
     db_session_real,
+    full_infrastructure,
+    gotenberg_container,
+    minio_container,
+    postgres_container,
+    redis_container,
+    sftp_container,
+    webdav_container,
 )
 
 _TEST_CREDENTIAL = "pass"  # noqa: S105
@@ -117,9 +118,10 @@ class TestEndToEndWithRedis:
 
         This verifies the Redis broker is working correctly.
         """
-        from app.tasks.upload_to_webdav import upload_to_webdav
         import redis
 
+        from app.tasks.upload_to_webdav import upload_to_webdav
+
         # Connect to Redis directly
         r = redis.from_url(redis_container["url"])
 

tests/test_embed_metadata.py

@@ -1,7 +1,9 @@
 """Tests for app/tasks/embed_metadata_into_pdf.py module."""
+
 import os
+from unittest.mock import MagicMock, patch
+
 import pytest
-from unittest.mock import patch, MagicMock
 
 from app.tasks.embed_metadata_into_pdf import persist_metadata
 from app.utils.filename_utils import get_unique_filepath_with_counter

tests/test_endpoint_registration.py

@@ -5,9 +5,10 @@ This test module serves as a regression prevention mechanism to ensure
 that endpoints remain accessible after code refactoring or reorganization.
 """
 
-import pytest
 from unittest.mock import Mock, patch
 
+import pytest
+
 # Test constants
 TEST_URL = "https://example.com/test.pdf"
 
@@ -34,10 +35,7 @@ class TestEndpointRegistration:
         mock_process_document.delay.return_value = mock_task
 
         # Make a request to the endpoint - it should not return 404
-        response = client.post(
-            "/api/process-url",
-            json={"url": TEST_URL}
-        )
+        response = client.post("/api/process-url", json={"url": TEST_URL})
 
         # The endpoint exists if we don't get a 404
         # We may get other errors (401, 400, 500, etc.) due to validation or missing mocks,
@@ -66,10 +64,7 @@ class TestEndpointRegistration:
         mock_process_document.delay.return_value = mock_task
 
         # Try POST request
-        response = client.post(
-            "/api/process-url",
-            json={"url": TEST_URL}
-        )
+        response = client.post("/api/process-url", json={"url": TEST_URL})
 
         # Should not return 405 (Method Not Allowed)
         assert response.status_code != 405, (

tests/test_extract_metadata.py

@@ -1,4 +1,5 @@
 """Tests for app/tasks/extract_metadata_with_gpt.py module."""
+
 import pytest
 
 from app.tasks.extract_metadata_with_gpt import extract_json_from_text

tests/test_file_listing.py

@@ -1,10 +1,13 @@
 """
 Tests for file listing, pagination, filtering, and detail endpoints.
 """
+
+from datetime import datetime
+
 import pytest
 from fastapi.testclient import TestClient
+
 from app.models import FileProcessingStep, FileRecord, ProcessingLog
-from datetime import datetime
 
 
 @pytest.mark.integration
@@ -32,7 +35,7 @@ class TestFileListingPagination:
                 original_filename=f"test{i}.pdf",
                 local_filename=f"/tmp/test{i}.pdf",
                 file_size=1024 * (i + 1),
-                mime_type="application/pdf"
+                mime_type="application/pdf",
             )
             db_session.add(file_record)
         db_session.commit()
@@ -53,7 +56,7 @@ class TestFileListingPagination:
                 original_filename=f"test{i}.pdf",
                 local_filename=f"/tmp/test{i}.pdf",
                 file_size=1024,
-                mime_type="application/pdf"
+                mime_type="application/pdf",
             )
             db_session.add(file_record)
         db_session.commit()
@@ -82,7 +85,7 @@ class TestFileListingPagination:
                 original_filename=name,
                 local_filename=f"/tmp/{name}",
                 file_size=1024,
-                mime_type="application/pdf"
+                mime_type="application/pdf",
             )
             db_session.add(file_record)
         db_session.commit()
@@ -110,7 +113,7 @@ class TestFileListingPagination:
                 original_filename=f"file{i}.pdf",
                 local_filename=f"/tmp/file{i}.pdf",
                 file_size=size,
-                mime_type="application/pdf"
+                mime_type="application/pdf",
             )
             db_session.add(file_record)
         db_session.commit()
@@ -131,7 +134,7 @@ class TestFileListingPagination:
                 original_filename=name,
                 local_filename=f"/tmp/{name}",
                 file_size=1024,
-                mime_type="application/pdf"
+                mime_type="application/pdf",
             )
             db_session.add(file_record)
         db_session.commit()
@@ -160,7 +163,7 @@ class TestFileListingPagination:
                 original_filename=filename,
                 local_filename=f"/tmp/{filename}",
                 file_size=1024,
-                mime_type=mime_type
+                mime_type=mime_type,
             )
             db_session.add(file_record)
         db_session.commit()
@@ -181,7 +184,7 @@ class TestFileListingPagination:
             original_filename="test.pdf",
             local_filename="/tmp/test.pdf",
             file_size=1024,
-            mime_type="application/pdf"
+            mime_type="application/pdf",
         )
         db_session.add(file_record)
         db_session.commit()
@@ -216,13 +219,17 @@ class TestFileDetailEndpoint:
             original_filename="test.pdf",
             local_filename="/tmp/test.pdf",
             file_size=1024,
-            mime_type="application/pdf"
+            mime_type="application/pdf",
         )
         db_session.add(file_record)
         db_session.commit()
 
         # Add processing steps (used for status determination)
-        for step_name, status in [("extract_text", "success"), ("extract_metadata_with_gpt", "in_progress"), ("embed_metadata_into_pdf", "success")]:
+        for step_name, status in [
+            ("extract_text", "success"),
+            ("extract_metadata_with_gpt", "in_progress"),
+            ("embed_metadata_into_pdf", "success"),
+        ]:
             step = FileProcessingStep(
                 file_id=file_record.id,
                 step_name=step_name,
@@ -237,7 +244,7 @@ class TestFileDetailEndpoint:
                 task_id=f"task_{i}",
                 step_name=f"step_{i}",
                 status=status,
-                message=f"Message {i}"
+                message=f"Message {i}",
             )
             db_session.add(log)
         db_session.commit()
@@ -272,7 +279,7 @@ class TestFileDetailEndpoint:
             original_filename="test.pdf",
             local_filename="/tmp/test.pdf",
             file_size=1024,
-            mime_type="application/pdf"
+            mime_type="application/pdf",
         )
         db_session.add(file_record)
         db_session.commit()

tests/test_file_queries.py

@@ -9,7 +9,7 @@ from sqlalchemy import create_engine
 from sqlalchemy.orm import sessionmaker
 
 from app.database import Base
-from app.models import FileRecord, FileProcessingStep
+from app.models import FileProcessingStep, FileRecord
 from app.utils.file_queries import apply_status_filter
 
 

tests/test_file_status_fix.py

@@ -14,7 +14,7 @@ from sqlalchemy import create_engine
 from sqlalchemy.orm import sessionmaker
 
 from app.database import Base
-from app.models import FileRecord, FileProcessingStep
+from app.models import FileProcessingStep, FileRecord
 from app.utils.step_manager import get_file_overall_status, get_step_summary, initialize_file_steps, update_step_status
 
 
@@ -40,10 +40,7 @@ class TestFileStatusCalculation:
         """
         # Create file and initialize steps
         file_record = FileRecord(
-            filehash="test1",
-            original_filename="test.pdf",
-            local_filename="/tmp/test.pdf",
-            file_size=1024
+            filehash="test1", original_filename="test.pdf", local_filename="/tmp/test.pdf", file_size=1024
         )
         db_session.add(file_record)
         db_session.commit()
@@ -52,6 +49,7 @@ class TestFileStatusCalculation:
 
         # Mark all steps as success
         from app.utils.step_manager import MAIN_PROCESSING_STEPS
+
         for step_name in MAIN_PROCESSING_STEPS:
             update_step_status(db_session, file_record.id, step_name, "success")
 
@@ -65,10 +63,7 @@ class TestFileStatusCalculation:
         Test that status shows "processing" when there are in_progress steps.
         """
         file_record = FileRecord(
-            filehash="test2",
-            original_filename="test2.pdf",
-            local_filename="/tmp/test2.pdf",
-            file_size=2048
+            filehash="test2", original_filename="test2.pdf", local_filename="/tmp/test2.pdf", file_size=2048
         )
         db_session.add(file_record)
         db_session.commit()
@@ -89,10 +84,7 @@ class TestFileStatusCalculation:
         Test that status shows "failed" when any step has failure status.
         """
         file_record = FileRecord(
-            filehash="test3",
-            original_filename="test3.pdf",
-            local_filename="/tmp/test3.pdf",
-            file_size=3072
+            filehash="test3", original_filename="test3.pdf", local_filename="/tmp/test3.pdf", file_size=3072
         )
         db_session.add(file_record)
         db_session.commit()
@@ -119,10 +111,7 @@ class TestMetricsCounting:
         Test that main processing steps are counted correctly.
         """
         file_record = FileRecord(
-            filehash="test4",
-            original_filename="test4.pdf",
-            local_filename="/tmp/test4.pdf",
-            file_size=4096
+            filehash="test4", original_filename="test4.pdf", local_filename="/tmp/test4.pdf", file_size=4096
         )
         db_session.add(file_record)
         db_session.commit()
@@ -138,6 +127,7 @@ class TestMetricsCounting:
 
         # Should count each step once
         from app.utils.step_manager import MAIN_PROCESSING_STEPS
+
         assert summary["total_main_steps"] == len(MAIN_PROCESSING_STEPS)
         assert summary["main"]["success"] == 2
         assert summary["main"]["in_progress"] == 1
@@ -147,16 +137,14 @@ class TestMetricsCounting:
         Test that upload tasks are counted correctly.
         """
         file_record = FileRecord(
-            filehash="test5",
-            original_filename="test5.pdf",
-            local_filename="/tmp/test5.pdf",
-            file_size=5120
+            filehash="test5", original_filename="test5.pdf", local_filename="/tmp/test5.pdf", file_size=5120
         )
         db_session.add(file_record)
         db_session.commit()
 
         initialize_file_steps(db_session, file_record.id)
         from app.utils.step_manager import add_upload_steps
+
         add_upload_steps(db_session, file_record.id, ["dropbox", "s3", "nextcloud"])
 
         # Mark upload steps with different statuses
@@ -177,16 +165,14 @@ class TestMetricsCounting:
         Test metrics for a file with multiple successful uploads.
         """
         file_record = FileRecord(
-            filehash="test6",
-            original_filename="test6.pdf",
-            local_filename="/tmp/test6.pdf",
-            file_size=6144
+            filehash="test6", original_filename="test6.pdf", local_filename="/tmp/test6.pdf", file_size=6144
         )
         db_session.add(file_record)
         db_session.commit()
 
         initialize_file_steps(db_session, file_record.id)
         from app.utils.step_manager import add_upload_steps
+
         services = ["dropbox", "s3", "nextcloud", "google_drive", "onedrive", "webdav"]
         add_upload_steps(db_session, file_record.id, services)
 

tests/test_filename_utils.py

@@ -4,11 +4,12 @@ Tests for app/utils/filename_utils.py
 Tests filename sanitization and manipulation functions.
 """
 
-import pytest
 import os
+from datetime import datetime
 from pathlib import Path
 from unittest.mock import Mock, patch
-from datetime import datetime
+
+import pytest
 
 
 @pytest.mark.unit
@@ -259,7 +260,6 @@ class TestFilenameUtilsEdgeCases:
         assert "?" not in result
 
 
-
 @pytest.mark.unit
 class TestUniqueFilepathWithCounter:
     """Test unique filepath generation with numeric counter suffix"""

tests/test_files_view.py

@@ -1,8 +1,10 @@
 """
 Test the /files view UI endpoint to ensure template rendering works correctly.
 """
+
 import pytest
 from fastapi.testclient import TestClient
+
 from app.models import FileRecord
 
 
@@ -26,7 +28,7 @@ class TestFilesView:
                 original_filename=f"test{i}.pdf",
                 local_filename=f"/tmp/test{i}.pdf",
                 file_size=1024 * (i + 1),
-                mime_type="application/pdf"
+                mime_type="application/pdf",
             )
             db_session.add(file_record)
         db_session.commit()
@@ -54,7 +56,7 @@ class TestFilesView:
                 original_filename=f"test{i}.pdf",
                 local_filename=f"/tmp/test{i}.pdf",
                 file_size=1024,
-                mime_type="application/pdf"
+                mime_type="application/pdf",
             )
             db_session.add(file_record)
         db_session.commit()
@@ -89,4 +91,3 @@ class TestFilesView:
         # Check for drag-and-drop event handlers
         assert "dragenter" in content or "drag" in content, "Drag event handlers should be present"
         assert "Drop files anywhere to upload" in content, "Drop message should be present"
-

tests/test_finalize_storage.py

@@ -1,7 +1,9 @@
 """Tests for app/tasks/finalize_document_storage.py module."""
+
 import os
+from unittest.mock import MagicMock, patch
+
 import pytest
-from unittest.mock import patch, MagicMock
 
 
 @pytest.mark.unit
@@ -18,4 +20,5 @@ class TestFinalizeDocumentStorageHelpers:
     def test_module_imports(self):
         """Test that the module can be imported without errors."""
         from app.tasks.finalize_document_storage import finalize_document_storage
+
         assert callable(finalize_document_storage)

tests/test_imap_extended.py

@@ -1,16 +1,18 @@
 """Extended tests for app/tasks/imap_tasks.py module."""
-import os
+
 import json
-import pytest
+import os
 from datetime import datetime, timezone
-from unittest.mock import patch, MagicMock
 from email.message import EmailMessage
+from unittest.mock import MagicMock, patch
+
+import pytest
 
 from app.tasks.imap_tasks import (
-    save_processed_emails,
-    load_processed_emails,
     fetch_attachments_and_enqueue,
     find_all_mail_xlist,
+    load_processed_emails,
+    save_processed_emails,
 )
 
 
@@ -41,9 +43,7 @@ class TestFetchAttachmentsExtended:
         msg = EmailMessage()
         msg["Subject"] = "Test"
         # Create attachment with wrong MIME type but .pdf extension
-        msg.add_attachment(
-            b"%PDF-1.4", maintype="application", subtype="octet-stream", filename="invoice.pdf"
-        )
+        msg.add_attachment(b"%PDF-1.4", maintype="application", subtype="octet-stream", filename="invoice.pdf")
 
         with patch("app.tasks.imap_tasks.settings") as mock_settings:
             mock_settings.workdir = str(tmp_path)

tests/test_imap_tasks.py

@@ -1,23 +1,24 @@
 """Tests for app/tasks/imap_tasks.py module."""
 
-import os
 import json
-import pytest
+import os
 from datetime import datetime, timedelta, timezone
-from unittest.mock import patch, MagicMock
 from email.message import EmailMessage
+from unittest.mock import MagicMock, patch
+
+import pytest
 
 from app.tasks.imap_tasks import (
-    load_processed_emails,
-    save_processed_emails,
-    cleanup_old_entries,
     check_and_pull_mailbox,
-    fetch_attachments_and_enqueue,
+    cleanup_old_entries,
     email_already_has_label,
-    mark_as_processed_with_star,
-    mark_as_processed_with_label,
+    fetch_attachments_and_enqueue,
     find_all_mail_folder,
     get_capabilities,
+    load_processed_emails,
+    mark_as_processed_with_label,
+    mark_as_processed_with_star,
+    save_processed_emails,
 )
 
 _TEST_CREDENTIAL = "pass"  # noqa: S105

tests/test_logging_utils.py

@@ -5,9 +5,9 @@ Tests task progress logging functionality.
 """
 
 import logging
+from unittest.mock import MagicMock, Mock, patch
 
 import pytest
-from unittest.mock import Mock, patch, MagicMock
 
 
 @pytest.mark.unit
@@ -64,9 +64,7 @@ class TestTaskLogging:
         mock_processing_log.return_value = mock_log_entry
 
         # Call without message
-        log_task_progress(
-            task_id="task-456", step_name="upload", status="completed", message=None, file_id=None
-        )
+        log_task_progress(task_id="task-456", step_name="upload", status="completed", message=None, file_id=None)
 
         # Verify called with None for optional parameters
         mock_processing_log.assert_called_once_with(
@@ -89,9 +87,7 @@ class TestTaskLogging:
         mock_processing_log.return_value = mock_log_entry
 
         # Call without file_id
-        log_task_progress(
-            task_id="task-789", step_name="metadata", status="running", message="Extracting metadata"
-        )
+        log_task_progress(task_id="task-789", step_name="metadata", status="running", message="Extracting metadata")
 
         # file_id should default to None
         mock_processing_log.assert_called_once()

tests/test_notification.py

@@ -4,8 +4,9 @@ Tests for app/utils/notification.py
 Tests notification utilities and URL masking.
 """
 
+from unittest.mock import MagicMock, Mock, patch
+
 import pytest
-from unittest.mock import Mock, patch, MagicMock
 
 _TEST_CREDENTIAL_URL = "https://user:password@example.com/notify"  # noqa: S105
 _TEST_QUERY_URL = "https://example.com/api?key=secret1&password=secret2&public=visible"  # noqa: S105
@@ -133,8 +134,8 @@ class TestAppriseInitialization:
     @patch("app.utils.notification.settings")
     def test_init_apprise_with_configured_urls(self, mock_settings, mock_apprise_class):
         """Test Apprise initialization with configured URLs"""
-        from app.utils.notification import init_apprise
         import app.utils.notification
+        from app.utils.notification import init_apprise
 
         # Reset global
         app.utils.notification._apprise = None
@@ -162,8 +163,8 @@ class TestAppriseInitialization:
     @patch("app.utils.notification.settings")
     def test_init_apprise_no_urls_configured(self, mock_settings, mock_apprise_class):
         """Test Apprise initialization without configured URLs"""
-        from app.utils.notification import init_apprise
         import app.utils.notification
+        from app.utils.notification import init_apprise
 
         # Reset global
         app.utils.notification._apprise = None
@@ -188,8 +189,8 @@ class TestAppriseInitialization:
     @patch("app.utils.notification.settings")
     def test_init_apprise_caches_instance(self, mock_settings, mock_apprise_class):
         """Test that Apprise instance is cached"""
-        from app.utils.notification import init_apprise
         import app.utils.notification
+        from app.utils.notification import init_apprise
 
         # Reset global
         app.utils.notification._apprise = None
@@ -214,8 +215,8 @@ class TestAppriseInitialization:
     @patch("app.utils.notification.settings")
     def test_init_apprise_handles_add_failure(self, mock_settings, mock_apprise_class):
         """Test handling when adding notification URL fails"""
-        from app.utils.notification import init_apprise
         import app.utils.notification
+        from app.utils.notification import init_apprise
 
         # Reset global
         app.utils.notification._apprise = None

tests/test_notification_utils.py

@@ -1,16 +1,18 @@
 """Tests for app/utils/notification.py module."""
+
+from unittest.mock import MagicMock, patch
+
 import pytest
-from unittest.mock import patch, MagicMock
 
 from app.utils.notification import (
     _mask_sensitive_url,
-    send_notification,
+    init_apprise,
     notify_celery_failure,
     notify_credential_failure,
-    notify_startup,
-    notify_shutdown,
     notify_file_processed,
-    init_apprise,
+    notify_shutdown,
+    notify_startup,
+    send_notification,
 )
 
 

tests/test_oauth_helper.py

@@ -4,8 +4,9 @@ Tests for app/utils/oauth_helper.py
 Tests OAuth token exchange helper functions.
 """
 
-import pytest
 from unittest.mock import Mock, patch
+
+import pytest
 import requests
 from fastapi import HTTPException
 
@@ -51,9 +52,7 @@ class TestOAuthTokenExchange:
         assert result["expires_in"] == 3600
 
         # Verify request was made correctly
-        mock_post.assert_called_once_with(
-            "https://oauth.example.com/token", data=payload, timeout=30
-        )
+        mock_post.assert_called_once_with("https://oauth.example.com/token", data=payload, timeout=30)
 
     @patch("app.utils.oauth_helper.requests.post")
     @patch("app.utils.oauth_helper.settings")
@@ -81,9 +80,7 @@ class TestOAuthTokenExchange:
         )
 
         # Verify custom timeout was used
-        mock_post.assert_called_once_with(
-            "https://oauth.example.com/token", data=payload, timeout=60
-        )
+        mock_post.assert_called_once_with("https://oauth.example.com/token", data=payload, timeout=60)
 
     @patch("app.utils.oauth_helper.requests.post")
     @patch("app.utils.oauth_helper.settings")
@@ -200,9 +197,7 @@ class TestOAuthTokenExchange:
         # Mock error response with invalid JSON
         mock_response = Mock()
         mock_response.status_code = 400
-        mock_response.json.side_effect = requests.exceptions.JSONDecodeError(
-            "Invalid JSON", "", 0
-        )
+        mock_response.json.side_effect = requests.exceptions.JSONDecodeError("Invalid JSON", "", 0)
         mock_post.return_value = mock_response
 
         payload = {"grant_type": "authorization_code"}

tests/test_ocr_processing.py

@@ -6,18 +6,19 @@ These tests verify OCR processing logic with mocked external AI/ML services
 """
 
 import os
+from unittest.mock import MagicMock, Mock, patch
+
 import pytest
-from unittest.mock import patch, MagicMock, Mock
 from azure.ai.documentintelligence.models import AnalyzeResult
 
 from app.tasks.process_with_azure_document_intelligence import (
-    process_with_azure_document_intelligence,
-    get_pdf_page_count,
-    check_page_rotation,
     AZURE_DOC_INTELLIGENCE_LIMITS,
+    check_page_rotation,
+    get_pdf_page_count,
+    process_with_azure_document_intelligence,
 )
 from app.tasks.refine_text_with_gpt import refine_text_with_gpt
-from app.tasks.rotate_pdf_pages import rotate_pdf_pages, determine_rotation_angle
+from app.tasks.rotate_pdf_pages import determine_rotation_angle, rotate_pdf_pages
 
 
 @pytest.mark.unit
@@ -86,22 +87,20 @@ startxref
         mock_client.begin_analyze_document.return_value = mock_poller
         mock_client.get_analyze_result_pdf.return_value = iter([b"searchable pdf content"])
 
-        with patch(
-            "app.tasks.process_with_azure_document_intelligence.document_intelligence_client",
-            mock_client,
-        ), patch(
-            "app.tasks.process_with_azure_document_intelligence.settings"
-        ) as mock_settings, patch(
-            "app.tasks.process_with_azure_document_intelligence.rotate_pdf_pages"
-        ) as mock_rotate:
+        with (
+            patch(
+                "app.tasks.process_with_azure_document_intelligence.document_intelligence_client",
+                mock_client,
+            ),
+            patch("app.tasks.process_with_azure_document_intelligence.settings") as mock_settings,
+            patch("app.tasks.process_with_azure_document_intelligence.rotate_pdf_pages") as mock_rotate,
+        ):
 
             mock_settings.workdir = str(tmp_path)
             mock_rotate.delay = MagicMock()
 
             # Run the task
-            result = process_with_azure_document_intelligence.run(
-                filename=test_pdf.name, file_id=1
-            )
+            result = process_with_azure_document_intelligence.run(filename=test_pdf.name, file_id=1)
 
             # Verify results
             assert result["file"] == test_pdf.name
@@ -124,15 +123,11 @@ startxref
     @patch("app.tasks.process_with_azure_document_intelligence.log_task_progress")
     def test_file_not_found_error(self, mock_log, tmp_path):
         """Test that FileNotFoundError is raised when file doesn't exist."""
-        with patch(
-            "app.tasks.process_with_azure_document_intelligence.settings"
-        ) as mock_settings:
+        with patch("app.tasks.process_with_azure_document_intelligence.settings") as mock_settings:
             mock_settings.workdir = str(tmp_path)
 
             with pytest.raises(FileNotFoundError) as exc_info:
-                process_with_azure_document_intelligence.run(
-                    filename="nonexistent.pdf", file_id=1
-                )
+                process_with_azure_document_intelligence.run(filename="nonexistent.pdf", file_id=1)
 
             assert "Local file not found" in str(exc_info.value)
 
@@ -145,21 +140,16 @@ startxref
         test_pdf = tmp_dir / "large.pdf"
         test_pdf.write_bytes(b"dummy content")
 
-        with patch(
-            "app.tasks.process_with_azure_document_intelligence.settings"
-        ) as mock_settings, patch(
-            "app.tasks.process_with_azure_document_intelligence.os.path.getsize"
-        ) as mock_getsize:
+        with (
+            patch("app.tasks.process_with_azure_document_intelligence.settings") as mock_settings,
+            patch("app.tasks.process_with_azure_document_intelligence.os.path.getsize") as mock_getsize,
+        ):
 
             mock_settings.workdir = str(tmp_path)
             # Mock file size to be larger than 500 MB
-            mock_getsize.return_value = AZURE_DOC_INTELLIGENCE_LIMITS[
-                "max_file_size_bytes"
-            ] + 1024
+            mock_getsize.return_value = AZURE_DOC_INTELLIGENCE_LIMITS["max_file_size_bytes"] + 1024
 
-            result = process_with_azure_document_intelligence.run(
-                filename=test_pdf.name, file_id=1
-            )
+            result = process_with_azure_document_intelligence.run(filename=test_pdf.name, file_id=1)
 
             # Verify error response
             assert "error" in result
@@ -175,19 +165,16 @@ startxref
         test_pdf = tmp_dir / "many_pages.pdf"
         test_pdf.write_bytes(b"%PDF-1.4\n%%EOF")  # Minimal valid PDF
 
-        with patch(
-            "app.tasks.process_with_azure_document_intelligence.settings"
-        ) as mock_settings, patch(
-            "app.tasks.process_with_azure_document_intelligence.get_pdf_page_count"
-        ) as mock_page_count:
+        with (
+            patch("app.tasks.process_with_azure_document_intelligence.settings") as mock_settings,
+            patch("app.tasks.process_with_azure_document_intelligence.get_pdf_page_count") as mock_page_count,
+        ):
 
             mock_settings.workdir = str(tmp_path)
             # Mock page count to exceed limit
             mock_page_count.return_value = AZURE_DOC_INTELLIGENCE_LIMITS["max_pages"] + 1
 
-            result = process_with_azure_document_intelligence.run(
-                filename=test_pdf.name, file_id=1
-            )
+            result = process_with_azure_document_intelligence.run(filename=test_pdf.name, file_id=1)
 
             # Verify error response
             assert "error" in result
@@ -219,15 +206,14 @@ startxref
         mock_client.begin_analyze_document.return_value = mock_poller
         mock_client.get_analyze_result_pdf.return_value = iter([b"content"])
 
-        with patch(
-            "app.tasks.process_with_azure_document_intelligence.document_intelligence_client",
-            mock_client,
-        ), patch(
-            "app.tasks.process_with_azure_document_intelligence.settings"
-        ) as mock_settings, patch(
-            "app.tasks.process_with_azure_document_intelligence.get_pdf_page_count"
-        ) as mock_page_count, patch(
-            "app.tasks.process_with_azure_document_intelligence.rotate_pdf_pages"
+        with (
+            patch(
+                "app.tasks.process_with_azure_document_intelligence.document_intelligence_client",
+                mock_client,
+            ),
+            patch("app.tasks.process_with_azure_document_intelligence.settings") as mock_settings,
+            patch("app.tasks.process_with_azure_document_intelligence.get_pdf_page_count") as mock_page_count,
+            patch("app.tasks.process_with_azure_document_intelligence.rotate_pdf_pages"),
         ):
 
             mock_settings.workdir = str(tmp_path)
@@ -235,9 +221,7 @@ startxref
             mock_page_count.return_value = None
 
             # Should not raise an error
-            result = process_with_azure_document_intelligence.run(
-                filename=test_pdf.name, file_id=1
-            )
+            result = process_with_azure_document_intelligence.run(filename=test_pdf.name, file_id=1)
 
             # Verify processing continued
             assert "error" not in result
@@ -275,21 +259,19 @@ startxref
         mock_client.begin_analyze_document.return_value = mock_poller
         mock_client.get_analyze_result_pdf.return_value = iter([b"content"])
 
-        with patch(
-            "app.tasks.process_with_azure_document_intelligence.document_intelligence_client",
-            mock_client,
-        ), patch(
-            "app.tasks.process_with_azure_document_intelligence.settings"
-        ) as mock_settings, patch(
-            "app.tasks.process_with_azure_document_intelligence.rotate_pdf_pages"
-        ) as mock_rotate:
+        with (
+            patch(
+                "app.tasks.process_with_azure_document_intelligence.document_intelligence_client",
+                mock_client,
+            ),
+            patch("app.tasks.process_with_azure_document_intelligence.settings") as mock_settings,
+            patch("app.tasks.process_with_azure_document_intelligence.rotate_pdf_pages") as mock_rotate,
+        ):
 
             mock_settings.workdir = str(tmp_path)
             mock_rotate.delay = MagicMock()
 
-            result = process_with_azure_document_intelligence.run(
-                filename=test_pdf.name, file_id=2
-            )
+            result = process_with_azure_document_intelligence.run(filename=test_pdf.name, file_id=2)
 
             # Verify rotation data was passed correctly
             mock_rotate.delay.assert_called_once()
@@ -311,24 +293,21 @@ startxref
         test_pdf.write_bytes(b"%PDF-1.4\n%%EOF")
 
         mock_client = Mock()
-        mock_client.begin_analyze_document.side_effect = Exception(
-            "Azure API connection failed"
-        )
+        mock_client.begin_analyze_document.side_effect = Exception("Azure API connection failed")
 
-        with patch(
-            "app.tasks.process_with_azure_document_intelligence.document_intelligence_client",
-            mock_client,
-        ), patch(
-            "app.tasks.process_with_azure_document_intelligence.settings"
-        ) as mock_settings:
+        with (
+            patch(
+                "app.tasks.process_with_azure_document_intelligence.document_intelligence_client",
+                mock_client,
+            ),
+            patch("app.tasks.process_with_azure_document_intelligence.settings") as mock_settings,
+        ):
 
             mock_settings.workdir = str(tmp_path)
 
             # Should raise the exception
             with pytest.raises(Exception) as exc_info:
-                process_with_azure_document_intelligence.run(
-                    filename=test_pdf.name, file_id=1
-                )
+                process_with_azure_document_intelligence.run(filename=test_pdf.name, file_id=1)
 
             assert "Azure API connection failed" in str(exc_info.value)
 
@@ -456,13 +435,11 @@ class TestRefineTextWithGPT:
         # Import the module to patch the correct function
         from app.tasks import extract_metadata_with_gpt as metadata_module
 
-        with patch(
-            "app.tasks.refine_text_with_gpt.client", mock_client
-        ), patch.object(
-            metadata_module, "extract_metadata_with_gpt"
-        ) as mock_extract, patch(
-            "app.tasks.refine_text_with_gpt.settings"
-        ) as mock_settings:
+        with (
+            patch("app.tasks.refine_text_with_gpt.client", mock_client),
+            patch.object(metadata_module, "extract_metadata_with_gpt") as mock_extract,
+            patch("app.tasks.refine_text_with_gpt.settings") as mock_settings,
+        ):
 
             mock_settings.openai_model = "gpt-4"
             mock_extract.delay = MagicMock()
@@ -481,9 +458,7 @@ class TestRefineTextWithGPT:
             assert call_kwargs["messages"][1]["content"] == raw_text
 
             # Verify metadata extraction was queued
-            mock_extract.delay.assert_called_once_with(
-                filename, "This is some text with OCR errors"
-            )
+            mock_extract.delay.assert_called_once_with(filename, "This is some text with OCR errors")
 
     @patch("app.tasks.refine_text_with_gpt.log_task_progress")
     def test_openai_api_error(self, mock_log):
@@ -492,15 +467,12 @@ class TestRefineTextWithGPT:
         filename = "test.pdf"
 
         mock_client = Mock()
-        mock_client.chat.completions.create.side_effect = Exception(
-            "OpenAI API error"
-        )
+        mock_client.chat.completions.create.side_effect = Exception("OpenAI API error")
 
-        with patch(
-            "app.tasks.refine_text_with_gpt.client", mock_client
-        ), patch(
-            "app.tasks.refine_text_with_gpt.settings"
-        ) as mock_settings:
+        with (
+            patch("app.tasks.refine_text_with_gpt.client", mock_client),
+            patch("app.tasks.refine_text_with_gpt.settings") as mock_settings,
+        ):
 
             mock_settings.openai_model = "gpt-4"
 
@@ -606,11 +578,10 @@ startxref
         rotation_data = {0: 90}  # Rotate first page by 90 degrees
         extracted_text = "Test text"
 
-        with patch(
-            "app.tasks.rotate_pdf_pages.settings"
-        ) as mock_settings, patch(
-            "app.tasks.rotate_pdf_pages.extract_metadata_with_gpt"
-        ) as mock_extract:
+        with (
+            patch("app.tasks.rotate_pdf_pages.settings") as mock_settings,
+            patch("app.tasks.rotate_pdf_pages.extract_metadata_with_gpt") as mock_extract,
+        ):
 
             mock_settings.workdir = str(tmp_path)
             mock_extract.delay = MagicMock()
@@ -629,9 +600,7 @@ startxref
             assert "0" in result["applied_rotations"]
 
             # Verify metadata extraction was queued
-            mock_extract.delay.assert_called_once_with(
-                test_pdf.name, extracted_text, 1
-            )
+            mock_extract.delay.assert_called_once_with(test_pdf.name, extracted_text, 1)
 
     @patch("app.tasks.rotate_pdf_pages.log_task_progress")
     def test_rotate_pdf_pages_no_rotation_needed(self, mock_log, tmp_path):
@@ -644,11 +613,10 @@ startxref
 
         extracted_text = "Test text"
 
-        with patch(
-            "app.tasks.rotate_pdf_pages.settings"
-        ) as mock_settings, patch(
-            "app.tasks.rotate_pdf_pages.extract_metadata_with_gpt"
-        ) as mock_extract:
+        with (
+            patch("app.tasks.rotate_pdf_pages.settings") as mock_settings,
+            patch("app.tasks.rotate_pdf_pages.extract_metadata_with_gpt") as mock_extract,
+        ):
 
             mock_settings.workdir = str(tmp_path)
             mock_extract.delay = MagicMock()
@@ -679,11 +647,10 @@ startxref
         rotation_data = {0: 0, 1: 0}  # All pages have 0 rotation
         extracted_text = "Test text"
 
-        with patch(
-            "app.tasks.rotate_pdf_pages.settings"
-        ) as mock_settings, patch(
-            "app.tasks.rotate_pdf_pages.extract_metadata_with_gpt"
-        ) as mock_extract:
+        with (
+            patch("app.tasks.rotate_pdf_pages.settings") as mock_settings,
+            patch("app.tasks.rotate_pdf_pages.extract_metadata_with_gpt") as mock_extract,
+        ):
 
             mock_settings.workdir = str(tmp_path)
             mock_extract.delay = MagicMock()
@@ -705,11 +672,10 @@ startxref
         tmp_dir = tmp_path / "tmp"
         tmp_dir.mkdir()
 
-        with patch(
-            "app.tasks.rotate_pdf_pages.settings"
-        ) as mock_settings, patch(
-            "app.tasks.rotate_pdf_pages.extract_metadata_with_gpt"
-        ) as mock_extract:
+        with (
+            patch("app.tasks.rotate_pdf_pages.settings") as mock_settings,
+            patch("app.tasks.rotate_pdf_pages.extract_metadata_with_gpt") as mock_extract,
+        ):
 
             mock_settings.workdir = str(tmp_path)
             mock_extract.delay = MagicMock()
@@ -742,11 +708,10 @@ startxref
         rotation_data = {0: 90}
         extracted_text = "Test text"
 
-        with patch(
-            "app.tasks.rotate_pdf_pages.settings"
-        ) as mock_settings, patch(
-            "app.tasks.rotate_pdf_pages.extract_metadata_with_gpt"
-        ) as mock_extract:
+        with (
+            patch("app.tasks.rotate_pdf_pages.settings") as mock_settings,
+            patch("app.tasks.rotate_pdf_pages.extract_metadata_with_gpt") as mock_extract,
+        ):
 
             mock_settings.workdir = str(tmp_path)
             mock_extract.delay = MagicMock()
@@ -814,11 +779,10 @@ startxref
         rotation_data = {"0": "90"}
         extracted_text = "Test text"
 
-        with patch(
-            "app.tasks.rotate_pdf_pages.settings"
-        ) as mock_settings, patch(
-            "app.tasks.rotate_pdf_pages.extract_metadata_with_gpt"
-        ) as mock_extract:
+        with (
+            patch("app.tasks.rotate_pdf_pages.settings") as mock_settings,
+            patch("app.tasks.rotate_pdf_pages.extract_metadata_with_gpt") as mock_extract,
+        ):
 
             mock_settings.workdir = str(tmp_path)
             mock_extract.delay = MagicMock()

tests/test_original_filename_preservation.py

@@ -87,11 +87,12 @@ startxref
     original_filename = "Apostille Sverige.pdf"
 
     # Mock environment and dependencies
-    with patch("app.tasks.process_document.SessionLocal") as mock_session_local, patch(
-        "app.tasks.process_document.settings"
-    ) as mock_settings, patch("app.tasks.process_document.log_task_progress"), patch(
-        "app.tasks.process_document.extract_metadata_with_gpt"
-    ) as mock_extract:
+    with (
+        patch("app.tasks.process_document.SessionLocal") as mock_session_local,
+        patch("app.tasks.process_document.settings") as mock_settings,
+        patch("app.tasks.process_document.log_task_progress"),
+        patch("app.tasks.process_document.extract_metadata_with_gpt") as mock_extract,
+    ):
 
         # Setup mocks
         mock_settings.workdir = str(tmp_path)
@@ -187,11 +188,12 @@ startxref
     test_pdf.write_bytes(pdf_content)
 
     # Mock environment and dependencies
-    with patch("app.tasks.process_document.SessionLocal") as mock_session_local, patch(
-        "app.tasks.process_document.settings"
-    ) as mock_settings, patch("app.tasks.process_document.log_task_progress"), patch(
-        "app.tasks.process_document.extract_metadata_with_gpt"
-    ) as mock_extract:
+    with (
+        patch("app.tasks.process_document.SessionLocal") as mock_session_local,
+        patch("app.tasks.process_document.settings") as mock_settings,
+        patch("app.tasks.process_document.log_task_progress"),
+        patch("app.tasks.process_document.extract_metadata_with_gpt") as mock_extract,
+    ):
 
         # Setup mocks
         mock_settings.workdir = str(tmp_path)

tests/test_path_traversal_security.py

@@ -4,11 +4,11 @@ Security tests for path traversal vulnerabilities.
 Tests all file path operations to ensure they properly prevent path traversal attacks.
 """
 
-import os
 import json
+import os
 import tempfile
 from pathlib import Path
-from unittest.mock import Mock, patch, MagicMock
+from unittest.mock import MagicMock, Mock, patch
 
 import pytest
 
@@ -389,9 +389,10 @@ class TestFileUploadSecurity:
 
     def test_sanitize_after_basename(self):
         """Test that sanitization happens after basename extraction."""
-        from app.utils.filename_utils import sanitize_filename
         import os
 
+        from app.utils.filename_utils import sanitize_filename
+
         malicious = "../../../passwd.pdf"
 
         # Step 1: Extract basename (as ui_upload does)
@@ -442,10 +443,11 @@ class TestEndToEndPathTraversal:
 
     def test_full_upload_flow_prevents_traversal(self, tmp_path):
         """Test complete upload flow prevents path traversal."""
-        from app.utils.filename_utils import sanitize_filename
         import os
         import uuid
 
+        from app.utils.filename_utils import sanitize_filename
+
         # Simulate ui_upload flow
         malicious_upload_filename = "../../../etc/passwd"
 
@@ -472,9 +474,10 @@ class TestEndToEndPathTraversal:
 
     def test_metadata_embedding_flow_prevents_traversal(self, tmp_path):
         """Test metadata embedding flow prevents path traversal."""
-        from app.utils.filename_utils import sanitize_filename
         import os
 
+        from app.utils.filename_utils import sanitize_filename
+
         # Simulate GPT returning malicious filename
         gpt_metadata = {
             "filename": "../../../etc/shadow",

tests/test_rate_limiting.py

@@ -101,9 +101,10 @@ def test_rate_limit_exceeded_returns_429(client):
 @pytest.mark.security
 def test_rate_limiting_uses_correct_identifier():
     """Test that rate limiting uses IP or user ID as identifier."""
-    from app.middleware.rate_limit import get_identifier
     from fastapi import Request
 
+    from app.middleware.rate_limit import get_identifier
+
     # Create a mock request
     class MockRequest:
         def __init__(self):
@@ -157,9 +158,10 @@ def test_limiter_disabled():
 @pytest.mark.integration
 def test_rate_limit_exception_handler_registered():
     """Test that rate limit exception handler is registered."""
-    from app.main import app
     from slowapi.errors import RateLimitExceeded
 
+    from app.main import app
+
     # Verify exception handler is registered
     assert RateLimitExceeded in app.exception_handlers
 

tests/test_rclone_tasks.py

@@ -1,7 +1,9 @@
 """Tests for app/tasks/upload_with_rclone.py module."""
+
 import os
+from unittest.mock import MagicMock, patch
+
 import pytest
-from unittest.mock import patch, MagicMock
 
 from app.tasks.upload_with_rclone import upload_with_rclone
 

tests/test_settings.py

@@ -6,19 +6,19 @@ import pytest
 from fastapi.testclient import TestClient
 from sqlalchemy.orm import Session
 
+from app.config import Settings
 from app.models import ApplicationSettings
+from app.utils.config_loader import convert_setting_value, load_settings_from_db
 from app.utils.settings_service import (
-    get_setting_from_db,
-    save_setting_to_db,
-    get_all_settings_from_db,
+    SETTING_METADATA,
     delete_setting_from_db,
-    validate_setting_value,
+    get_all_settings_from_db,
+    get_setting_from_db,
     get_setting_metadata,
     get_settings_by_category,
-    SETTING_METADATA,
+    save_setting_to_db,
+    validate_setting_value,
 )
-from app.utils.config_loader import convert_setting_value, load_settings_from_db
-from app.config import Settings
 
 
 @pytest.mark.unit
@@ -140,9 +140,14 @@ class TestSettingsService:
 
         # Check critical settings are present
         critical_settings = [
-            "database_url", "redis_url", "workdir", "debug",
-            "openai_api_key", "azure_ai_key",
-            "auth_enabled", "session_secret"
+            "database_url",
+            "redis_url",
+            "workdir",
+            "debug",
+            "openai_api_key",
+            "azure_ai_key",
+            "auth_enabled",
+            "session_secret",
         ]
         for setting in critical_settings:
             assert setting in SETTING_METADATA, f"Missing metadata for {setting}"
@@ -219,9 +224,10 @@ class TestSettingsPrecedence:
     def test_db_overrides_default(self, db_session: Session):
         """Test that database settings override default values"""
         # Create a minimal test settings object
-        from pydantic_settings import BaseSettings
         from typing import Optional
 
+        from pydantic_settings import BaseSettings
+
         class TestSettings(BaseSettings):
             test_value: str = "default"
             test_bool: bool = False
@@ -270,10 +276,7 @@ class TestApplicationSettingsModel:
 
     def test_create_setting_record(self, db_session: Session):
         """Test creating an ApplicationSettings record"""
-        setting = ApplicationSettings(
-            key="test_key",
-            value="test_value"
-        )
+        setting = ApplicationSettings(key="test_key", value="test_value")
         db_session.add(setting)
         db_session.commit()
 
@@ -301,7 +304,7 @@ class TestApplicationSettingsModel:
 
     @pytest.mark.skipif(
         True,  # Skip for all databases - timestamp update behavior varies
-        reason="Timestamp update behavior varies by database backend"
+        reason="Timestamp update behavior varies by database backend",
     )
     def test_update_timestamp(self, db_session: Session):
         """Test that updated_at timestamp is updated on modification"""
@@ -325,4 +328,3 @@ class TestApplicationSettingsModel:
         # Note: SQLite doesn't automatically update onupdate timestamps
         # This test is skipped as behavior varies by database backend
         assert setting.updated_at is not None
-

tests/test_settings_display.py

@@ -1,7 +1,9 @@
 """Tests for app/utils/config_validator/settings_display.py module."""
-import pytest
+
 from unittest.mock import patch
 
+import pytest
+
 from app.utils.config_validator.settings_display import dump_all_settings, get_settings_for_display
 
 

tests/test_setup_wizard.py

@@ -1,12 +1,14 @@
 """Tests for app/utils/setup_wizard.py module."""
-import pytest
+
 from unittest.mock import patch
 
+import pytest
+
 from app.utils.setup_wizard import (
-    get_required_settings,
-    is_setup_required,
     get_missing_required_settings,
+    get_required_settings,
     get_wizard_steps,
+    is_setup_required,
 )
 
 

tests/test_step_manager.py

@@ -172,7 +172,12 @@ class TestStepManager:
         # Update an existing step
         now = datetime.now()
         update_step_status(
-            db_session, file_record.id, "create_file_record", "success", started_at=now - timedelta(seconds=5), completed_at=now
+            db_session,
+            file_record.id,
+            "create_file_record",
+            "success",
+            started_at=now - timedelta(seconds=5),
+            completed_at=now,
         )
 
         # Verify step was updated
@@ -201,7 +206,9 @@ class TestStepManager:
         now = datetime.now()
         update_step_status(db_session, file_record.id, "create_file_record", "success", completed_at=now)
         update_step_status(db_session, file_record.id, "check_text", "in_progress", started_at=now)
-        update_step_status(db_session, file_record.id, "extract_text", "failure", error_message="Failed to extract text")
+        update_step_status(
+            db_session, file_record.id, "extract_text", "failure", error_message="Failed to extract text"
+        )
 
         # Get all step statuses
         status_map = get_file_step_status(db_session, file_record.id)

tests/test_storage_reorganization.py

@@ -5,8 +5,8 @@ Tests the new functionality for storing immutable originals and processed copies
 collision handling, and forced Cloud OCR reprocessing.
 """
 
-import os
 import json
+import os
 from unittest.mock import MagicMock, patch
 
 import pytest
@@ -195,7 +195,7 @@ startxref
             local_filename=str(test_pdf),
             original_file_path=str(original_file),
             file_size=100,
-            mime_type="application/pdf"
+            mime_type="application/pdf",
         )
         db_session.add(file_record)
         db_session.commit()
@@ -250,11 +250,7 @@ class TestMetadataAugmentation:
         """Test that persisted metadata includes original and processed paths"""
         from app.tasks.embed_metadata_into_pdf import persist_metadata
 
-        metadata = {
-            "filename": "2024-01-01_Invoice",
-            "document_type": "Invoice",
-            "tags": ["finance", "2024"]
-        }
+        metadata = {"filename": "2024-01-01_Invoice", "document_type": "Invoice", "tags": ["finance", "2024"]}
 
         processed_file = tmp_path / "processed" / "2024-01-01_Invoice.pdf"
         processed_file.parent.mkdir(parents=True)
@@ -264,17 +260,14 @@ class TestMetadataAugmentation:
         processed_path = str(processed_file)
 
         json_path = persist_metadata(
-            metadata, 
-            str(processed_file),
-            original_file_path=original_path,
-            processed_file_path=processed_path
+            metadata, str(processed_file), original_file_path=original_path, processed_file_path=processed_path
         )
 
         # Verify JSON was created
         assert os.path.exists(json_path)
 
         # Verify content
-        with open(json_path, 'r') as f:
+        with open(json_path, "r") as f:
             saved_metadata = json.load(f)
 
         assert "original_file_path" in saved_metadata

tests/test_upload_email.py

@@ -1,6 +1,8 @@
 """Tests for app/tasks/upload_to_email.py module."""
+
+from unittest.mock import MagicMock, patch
+
 import pytest
-from unittest.mock import patch, MagicMock
 
 
 @pytest.mark.unit
@@ -10,4 +12,5 @@ class TestUploadToEmail:
     def test_module_imports(self):
         """Test that the module can be imported."""
         from app.tasks.upload_to_email import upload_to_email
+
         assert callable(upload_to_email)

tests/test_upload_ftp_additional.py

@@ -1,6 +1,8 @@
 """Additional tests for upload_to_ftp task."""
+
+from unittest.mock import MagicMock, patch
+
 import pytest
-from unittest.mock import patch, MagicMock
 
 
 @pytest.mark.unit
@@ -10,4 +12,5 @@ class TestUploadToFtp:
     def test_module_imports(self):
         """Test that the module can be imported."""
         from app.tasks.upload_to_ftp import upload_to_ftp
+
         assert callable(upload_to_ftp)

tests/test_upload_tasks.py

@@ -3,15 +3,17 @@ Tests for upload tasks including OneDrive, S3, FTP, SFTP, WebDAV, Google Drive,
 """
 
 import os
+from unittest.mock import MagicMock, Mock, patch
+
 import pytest
-from unittest.mock import Mock, patch, MagicMock
+
+from app.tasks.upload_to_email import upload_to_email
+from app.tasks.upload_to_ftp import upload_to_ftp
+from app.tasks.upload_to_google_drive import upload_to_google_drive
 from app.tasks.upload_to_onedrive import upload_to_onedrive
 from app.tasks.upload_to_s3 import upload_to_s3
-from app.tasks.upload_to_ftp import upload_to_ftp
 from app.tasks.upload_to_sftp import upload_to_sftp
 from app.tasks.upload_to_webdav import upload_to_webdav
-from app.tasks.upload_to_google_drive import upload_to_google_drive
-from app.tasks.upload_to_email import upload_to_email
 
 _TEST_CREDENTIAL = "test_pass"  # noqa: S105
 

tests/test_upload_tasks_additional.py

@@ -1,7 +1,9 @@
 """Additional tests for upload task modules."""
+
 import os
+from unittest.mock import MagicMock, patch
+
 import pytest
-from unittest.mock import patch, MagicMock
 
 
 @pytest.mark.unit
@@ -23,6 +25,7 @@ class TestUploadToNextcloud:
             mock_settings.workdir = "/tmp"
 
             from app.tasks.upload_to_nextcloud import upload_to_nextcloud
+
             result = upload_to_nextcloud.__wrapped__(mock_self, "/nonexistent/file.pdf")
 
 

tests/test_upload_tasks_coverage.py

@@ -1,15 +1,17 @@
 """Tests to increase coverage for upload task modules."""
-import os
-import pytest
-from unittest.mock import patch, MagicMock
 
-from app.tasks.upload_to_paperless import upload_to_paperless
+import os
+from unittest.mock import MagicMock, patch
+
+import pytest
+
+from app.tasks.upload_to_ftp import upload_to_ftp
 from app.tasks.upload_to_nextcloud import upload_to_nextcloud
 from app.tasks.upload_to_onedrive import upload_to_onedrive
+from app.tasks.upload_to_paperless import upload_to_paperless
 from app.tasks.upload_to_s3 import upload_to_s3
 from app.tasks.upload_to_sftp import upload_to_sftp
 from app.tasks.upload_to_webdav import upload_to_webdav
-from app.tasks.upload_to_ftp import upload_to_ftp
 
 
 @pytest.mark.unit

tests/test_upload_webdav_comprehensive.py

@@ -1,9 +1,10 @@
 """Comprehensive tests for upload_to_webdav task."""
 
 import os
+from unittest.mock import MagicMock, Mock, patch
+
 import pytest
-from unittest.mock import patch, Mock, MagicMock
-from requests.exceptions import ConnectionError, Timeout, RequestException
+from requests.exceptions import ConnectionError, RequestException, Timeout
 
 from app.tasks.upload_to_webdav import upload_to_webdav
 

tests/test_upload_webdav_integration.py

@@ -7,11 +7,12 @@ actual file uploads against it, then verify the files were uploaded successfully
 
 import os
 import time
-import pytest
-import requests
 from pathlib import Path
 from unittest.mock import patch
 
+import pytest
+import requests
+
 from app.tasks.upload_to_webdav import upload_to_webdav
 
 # Import testcontainers - required for these tests

tests/test_uptime_kuma.py

@@ -4,8 +4,9 @@ Tests for app/tasks/uptime_kuma_tasks.py
 Tests Uptime Kuma health check ping functionality.
 """
 
+from unittest.mock import MagicMock, Mock, patch
+
 import pytest
-from unittest.mock import Mock, patch, MagicMock
 import requests
 
 
@@ -43,9 +44,7 @@ class TestUptimeKumaTasks:
 
         # Should return True on success
         assert result is True
-        mock_get.assert_called_once_with(
-            "https://uptime.example.com/ping/123", timeout=10
-        )
+        mock_get.assert_called_once_with("https://uptime.example.com/ping/123", timeout=10)
         mock_response.raise_for_status.assert_called_once()
 
     @patch("app.tasks.uptime_kuma_tasks.requests.get")
@@ -93,9 +92,7 @@ class TestUptimeKumaTasks:
         # Mock HTTP error
         mock_response = Mock()
         mock_response.status_code = 500
-        mock_response.raise_for_status.side_effect = requests.exceptions.HTTPError(
-            "500 Server Error"
-        )
+        mock_response.raise_for_status.side_effect = requests.exceptions.HTTPError("500 Server Error")
         mock_get.return_value = mock_response
 
         result = ping_uptime_kuma()

tests/test_url_upload.py

@@ -29,9 +29,10 @@ class TestURLUploadValidation:
 
     def test_validate_url_scheme_ftp_rejected(self):
         """Test that FTP URLs are rejected"""
-        from app.api.url_upload import URLUploadRequest
         from pydantic import ValidationError
 
+        from app.api.url_upload import URLUploadRequest
+
         with pytest.raises(ValidationError) as exc_info:
             URLUploadRequest(url="ftp://example.com/file.pdf")
         # Pydantic HttpUrl validates scheme automatically
@@ -39,9 +40,10 @@ class TestURLUploadValidation:
 
     def test_validate_url_scheme_file_rejected(self):
         """Test that file:// URLs are rejected"""
-        from app.api.url_upload import URLUploadRequest
         from pydantic import ValidationError
 
+        from app.api.url_upload import URLUploadRequest
+
         with pytest.raises(ValidationError) as exc_info:
             URLUploadRequest(url="file:///etc/passwd")
         # Pydantic HttpUrl validates scheme automatically
@@ -126,17 +128,14 @@ class TestURLUploadValidation:
         # Word
         assert validate_file_type("application/msword", "file.doc") is True
         assert (
-            validate_file_type(
-                "application/vnd.openxmlformats-officedocument.wordprocessingml.document", "file.docx"
-            )
+            validate_file_type("application/vnd.openxmlformats-officedocument.wordprocessingml.document", "file.docx")
             is True
         )
 
         # Excel
         assert validate_file_type("application/vnd.ms-excel", "file.xls") is True
         assert (
-            validate_file_type("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", "file.xlsx")
-            is True
+            validate_file_type("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", "file.xlsx") is True
         )
 
     def test_validate_file_type_images_allowed(self):
@@ -248,9 +247,7 @@ class TestURLUploadEndpoint:
     @patch("app.api.url_upload.requests.get")
     def test_process_url_blocks_metadata_endpoint(self, mock_requests_get, client):
         """Test that cloud metadata endpoints are blocked"""
-        response = client.post(
-            "/api/process-url", json={"url": "http://169.254.169.254/latest/meta-data/"}
-        )
+        response = client.post("/api/process-url", json={"url": "http://169.254.169.254/latest/meta-data/"})
 
         assert response.status_code == 400
         data = response.json()
@@ -341,9 +338,7 @@ class TestURLUploadEndpoint:
 
     @patch("app.api.url_upload.requests.get")
     @patch("app.api.url_upload.process_document")
-    def test_process_url_with_custom_filename(
-        self, mock_process_document, mock_requests_get, client, tmp_path
-    ):
+    def test_process_url_with_custom_filename(self, mock_process_document, mock_requests_get, client, tmp_path):
         """Test URL upload with custom filename"""
         # Mock successful download
         mock_response = Mock()
@@ -369,9 +364,7 @@ class TestURLUploadEndpoint:
 
     @patch("app.api.url_upload.requests.get")
     @patch("app.api.url_upload.process_document")
-    def test_process_url_extracts_filename_from_url(
-        self, mock_process_document, mock_requests_get, client, tmp_path
-    ):
+    def test_process_url_extracts_filename_from_url(self, mock_process_document, mock_requests_get, client, tmp_path):
         """Test that filename is extracted from URL when not provided"""
         # Mock successful download
         mock_response = Mock()

tests/test_views_coverage.py

@@ -1,7 +1,8 @@
 """Additional view tests to increase coverage."""
 
+from unittest.mock import MagicMock, patch
+
 import pytest
-from unittest.mock import patch, MagicMock
 
 _TEST_CREDENTIAL = "test"  # noqa: S105
 

tests/test_views_dropbox.py

@@ -1,4 +1,5 @@
 """Tests for app/views/dropbox.py module."""
+
 import pytest
 
 

tests/test_views_general.py

@@ -1,7 +1,9 @@
 """Tests for app/views/general.py module."""
-import pytest
-from unittest.mock import patch, MagicMock
+
 from pathlib import Path
+from unittest.mock import MagicMock, patch
+
+import pytest
 
 
 @pytest.mark.integration

tests/test_views_google_drive.py

@@ -1,4 +1,5 @@
 """Tests for app/views/google_drive.py module."""
+
 import pytest
 
 

tests/test_views_license.py

@@ -1,4 +1,5 @@
 """Tests for app/views/license_routes.py module."""
+
 import pytest
 
 

tests/test_views_onedrive.py

@@ -1,4 +1,5 @@
 """Tests for app/views/onedrive.py module."""
+
 import pytest
 
 

tests/test_views_settings.py

@@ -1,6 +1,8 @@
 """Tests for app/views/settings.py module."""
+
+from unittest.mock import MagicMock, patch
+
 import pytest
-from unittest.mock import patch, MagicMock
 
 from app.views.settings import require_admin_access
 
@@ -12,6 +14,7 @@ class TestRequireAdminAccess:
     @pytest.mark.asyncio
     async def test_redirects_non_admin_user(self):
         """Test that non-admin users are redirected."""
+
         @require_admin_access
         async def dummy_route(request):
             return {"success": True}
@@ -25,6 +28,7 @@ class TestRequireAdminAccess:
     @pytest.mark.asyncio
     async def test_redirects_when_no_user(self):
         """Test that unauthenticated users are redirected."""
+
         @require_admin_access
         async def dummy_route(request):
             return {"success": True}
@@ -38,6 +42,7 @@ class TestRequireAdminAccess:
     @pytest.mark.asyncio
     async def test_allows_admin_user(self):
         """Test that admin users can access the route."""
+
         @require_admin_access
         async def dummy_route(request):
             return {"success": True}

tests/test_views_status.py

@@ -1,4 +1,5 @@
 """Tests for app/views/status.py module."""
+
 import pytest
 
 

tests/test_views_wizard.py

@@ -1,4 +1,5 @@
 """Tests for app/views/wizard.py module."""
+
 import pytest