mirror of
https://github.com/kuhyx/testsAndMisc.git
synced 2026-11-10 21:27:02 +01:00
Krzysztof kuhy Rudnicki
69242e4bb3
a12e696 turned CI red two ways, both missed locally because the suite was
run for the brother_printer package alone while CI runs everything in a
random order.
The repo caps Python files at 500 lines and cups_service.py had reached
659. Rather than cut it arbitrarily, extract consumable life tracking -
page counters, replacement baselines, the scale migration, dropped-page
detection - into consumables.py. The seam is real: none of it depends on
CUPS service control, and cups_service needs only estimate_consumable_life
for its fallback query, so the dependency runs one way. The test files are
split along the same seams.
test_main_entry passed or failed depending on execution order: runpy warns
when the target module is already in sys.modules, a sibling test imports
it, and pytest is configured with filterwarnings=error. Drop the module
before running it so the test no longer depends on who ran first.
Structural only; no behaviour change. 692 tests, 100% branch coverage.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RG3eEn8rwZbcXaJrKJxdv8
36 lines
1.3 KiB
Python
36 lines
1.3 KiB
Python
"""Tests for brother_printer.__main__ module."""
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from __future__ import annotations
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import importlib
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import runpy
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import sys
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from unittest.mock import MagicMock, patch
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class TestMain:
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def test_main_called_when_run_as_module(self) -> None:
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"""python3 -m python_pkg.brother_printer runs main()."""
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mock_main = MagicMock()
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# runpy warns if __main__ is already imported, and the suite runs tests
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# in a random order, so another test may have imported it first. The
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# warning is an error here, so drop it and let runpy execute it fresh.
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sys.modules.pop("python_pkg.brother_printer.__main__", None)
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with patch(
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"python_pkg.brother_printer.check_brother_printer.main",
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mock_main,
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):
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runpy.run_module("python_pkg.brother_printer", run_name="__main__")
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mock_main.assert_called_once()
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def test_main_not_called_on_plain_import(self) -> None:
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"""Importing __main__ must not fire off a status report as a side effect."""
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mock_main = MagicMock()
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with patch(
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"python_pkg.brother_printer.check_brother_printer.main",
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mock_main,
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):
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sys.modules.pop("python_pkg.brother_printer.__main__", None)
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importlib.import_module("python_pkg.brother_printer.__main__")
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mock_main.assert_not_called()
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