copilot-swe-agent[bot]
eeb3fa5c66
Agent-Logs-Url: https://github.com/christianlouis/InboxConverge/sessions/5d2918de-630e-4a66-8355-1b036c620b1c Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>
267 lines
9.7 KiB
Python
267 lines
9.7 KiB
Python
"""
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Unit tests for _format_connection_error() and MailDebugRecorder.
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These tests verify:
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- _format_connection_error returns human-readable, non-empty strings
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for every relevant exception type.
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- MailDebugRecorder caps its trace at the configured limits and never
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includes password or credential data in its output.
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"""
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import asyncio
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import poplib
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import socket
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import ssl
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import pytest
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from app.services.mail_processor import (
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MailDebugRecorder,
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_format_connection_error,
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_MAX_TRACE_BYTES,
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_MAX_TRACE_ENTRIES,
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)
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# ---------------------------------------------------------------------------
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# _format_connection_error – helpers
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# ---------------------------------------------------------------------------
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def _fmt(exc: BaseException, host: str = "mail.example.com", port: int = 993) -> str:
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return _format_connection_error(exc, host, port, "IMAP")
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# ---------------------------------------------------------------------------
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# DNS failure (socket.gaierror)
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# ---------------------------------------------------------------------------
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class TestFormatConnectionErrorDns:
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def test_gaierror_includes_hostname(self):
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exc = socket.gaierror(-5, "No address associated with hostname")
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msg = _fmt(exc, host="pop.web.de", port=995)
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assert "pop.web.de" in msg
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assert "DNS" in msg or "resolve" in msg.lower()
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def test_gaierror_never_empty(self):
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exc = socket.gaierror(-2, "Name or service not known")
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assert _fmt(exc)
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def test_gaierror_without_host(self):
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exc = socket.gaierror(-5, "No address associated with hostname")
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msg = _format_connection_error(exc)
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assert msg
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assert "DNS" in msg or "lookup" in msg.lower()
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# ---------------------------------------------------------------------------
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# Timeout
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# ---------------------------------------------------------------------------
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class TestFormatConnectionErrorTimeout:
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def test_socket_timeout_includes_host_port(self):
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exc = socket.timeout("timed out")
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msg = _fmt(exc, host="imap.gmx.net", port=993)
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# Verify both the host and timeout indicator appear in the message
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assert "imap.gmx.net" in msg
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assert "993" in msg
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assert "timed out" in msg.lower() or "timeout" in msg.lower()
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def test_asyncio_timeout_error(self):
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exc = asyncio.TimeoutError()
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msg = _fmt(exc)
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assert msg # never empty even though str() is ""
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assert "timed out" in msg.lower() or "timeout" in msg.lower()
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def test_bare_timeout_error(self):
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"""Python 3.11+ TimeoutError (subclass of OSError) should be handled."""
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exc = TimeoutError("timed out")
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msg = _fmt(exc)
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assert msg
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# ---------------------------------------------------------------------------
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# Connection refused / reset
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# ---------------------------------------------------------------------------
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class TestFormatConnectionErrorRefused:
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def test_connection_refused_includes_host_port(self):
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exc = ConnectionRefusedError(111, "Connection refused")
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msg = _fmt(exc, host="smtp.example.com", port=587)
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# Verify both host and port appear in the message
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assert "smtp.example.com" in msg
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assert "587" in msg
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assert "refused" in msg.lower()
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def test_connection_reset(self):
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exc = ConnectionResetError(104, "Connection reset by peer")
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msg = _fmt(exc)
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assert msg
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assert "reset" in msg.lower()
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# ---------------------------------------------------------------------------
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# SSL errors
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# ---------------------------------------------------------------------------
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class TestFormatConnectionErrorSsl:
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def test_ssl_cert_verification(self):
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try:
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# Create a real SSLCertVerificationError if possible
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exc = ssl.SSLCertVerificationError(
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1, "[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed"
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)
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except Exception:
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exc = ssl.SSLError(1, "CERTIFICATE_VERIFY_FAILED") # type: ignore[assignment]
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msg = _fmt(exc)
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assert msg
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assert "TLS" in msg or "SSL" in msg or "certificate" in msg.lower()
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def test_ssl_generic_error(self):
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exc = ssl.SSLError(1, "wrong version number")
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msg = _fmt(exc)
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assert msg
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assert "TLS" in msg or "SSL" in msg
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# ---------------------------------------------------------------------------
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# POP3 protocol errors
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# ---------------------------------------------------------------------------
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class TestFormatConnectionErrorPop3:
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def test_auth_error_identifies_auth_failure(self):
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exc = poplib.error_proto("-ERR authentication failed")
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msg = _format_connection_error(exc, "pop.example.com", 995, "POP3")
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# Verify both host and port appear in the message
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assert "pop.example.com" in msg
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assert "995" in msg
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assert "Authentication" in msg or "authentication" in msg
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def test_generic_pop3_error(self):
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exc = poplib.error_proto("-ERR mailbox is locked")
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msg = _format_connection_error(exc, "pop.example.com", 995, "POP3")
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assert msg
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assert "POP3" in msg
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def test_empty_pop3_error(self):
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"""Even a bare error_proto with no message must produce a non-empty string."""
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exc = poplib.error_proto(b"")
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msg = _format_connection_error(exc, "pop.example.com", 995, "POP3")
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assert msg
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# ---------------------------------------------------------------------------
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# Catch-all: empty-string exception
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# ---------------------------------------------------------------------------
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class TestFormatConnectionErrorFallback:
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def test_empty_string_exception(self):
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"""An exception whose str() is empty must still produce a non-empty message."""
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exc = asyncio.TimeoutError()
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assert str(exc) == "" # confirm the premise
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msg = _fmt(exc)
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assert msg
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assert len(msg) > 0
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def test_generic_exception(self):
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exc = RuntimeError("something went wrong")
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msg = _fmt(exc)
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assert "something went wrong" in msg or "RuntimeError" in msg
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def test_no_host(self):
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exc = RuntimeError("test")
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msg = _format_connection_error(exc)
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assert msg
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# ---------------------------------------------------------------------------
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# MailDebugRecorder
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# ---------------------------------------------------------------------------
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class TestMailDebugRecorder:
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def test_record_entry_appears_in_trace(self):
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rec = MailDebugRecorder()
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rec.record("connect", "Connected to mail.example.com:993", {"elapsed_ms": 42})
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details = rec.as_details()
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assert len(details["trace"]) == 1
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entry = details["trace"][0]
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assert entry["phase"] == "connect"
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assert entry["msg"] == "Connected to mail.example.com:993"
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assert entry["data"]["elapsed_ms"] == 42
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assert not details["truncated"]
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def test_has_entries_false_when_empty(self):
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rec = MailDebugRecorder()
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assert not rec.has_entries()
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def test_has_entries_true_after_record(self):
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rec = MailDebugRecorder()
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rec.record("auth", "Logged in")
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assert rec.has_entries()
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def test_size_cap_triggers_truncation(self):
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"""Recording beyond _MAX_TRACE_BYTES silently truncates."""
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rec = MailDebugRecorder()
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# Each entry is ~100 chars; flood until truncated
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long_msg = "x" * 1000
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for i in range(200):
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rec.record("flood", long_msg, {"i": i})
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details = rec.as_details()
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assert details["truncated"]
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# After truncation, recording new entries is a no-op
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prev_count = len(rec)
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rec.record("after_truncate", "should be ignored")
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assert len(rec) == prev_count
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def test_entry_cap_triggers_truncation(self):
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"""Recording more than _MAX_TRACE_ENTRIES entries truncates."""
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rec = MailDebugRecorder()
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for i in range(_MAX_TRACE_ENTRIES + 10):
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rec.record("phase", f"entry {i}")
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assert rec.as_details()["truncated"]
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# Total entries should be MAX + 1 (the truncation sentinel)
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assert len(rec.as_details()["trace"]) <= _MAX_TRACE_ENTRIES + 1
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def test_no_password_in_trace_from_production_phases(self):
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"""Production instrumentation records only usernames and counts, never passwords.
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The recorder itself has no auto-redaction; the contract is that callers
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(the instrumented IMAP/POP3 code) must never pass credential data.
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This test verifies the expected production-phase entries contain no
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password strings.
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"""
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password = "s3cr3tP@ssw0rd!"
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rec = MailDebugRecorder()
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# Simulate the entries that production code actually records
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rec.record("auth", f"Authenticated as user@example.com", {"elapsed_ms": 5})
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rec.record("stat", "Mailbox has 3 messages", {"count": 3})
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import json
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serialised = json.dumps(rec.as_details())
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# The password must not appear in any of these entries
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assert password not in serialised
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def test_timestamps_are_iso_format(self):
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rec = MailDebugRecorder()
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rec.record("connect", "ok")
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ts = rec.as_details()["trace"][0]["ts"]
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# Should be parseable as ISO 8601
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from datetime import datetime
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datetime.fromisoformat(ts) # raises if invalid
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def test_multiple_phases_ordered(self):
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rec = MailDebugRecorder()
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for phase in ["connect", "auth", "select", "search", "fetch_msg", "logout"]:
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rec.record(phase, f"{phase} done")
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details = rec.as_details()
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phases = [e["phase"] for e in details["trace"]]
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assert phases == ["connect", "auth", "select", "search", "fetch_msg", "logout"]
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