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Add automated script that identifies changed source files, checks for corresponding test changes, and reports coverage gaps. Acceptance — #124: - Identifies changed source files (git diff --name-only HEAD) - Checks for corresponding test changes (source→test file mapping) - Reports: code without tests (lists uncovered sources) - Output: coverage gap (structured text/JSON) Closes #124 Task: 6.6 — Test Coverage Checker
117 lines
3.2 KiB
Python
117 lines
3.2 KiB
Python
#!/usr/bin/env python3
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"""Tests for coverage_checker — Issue #124 acceptance validation."""
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import subprocess
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import sys
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from pathlib import Path
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sys.path.insert(0, str(Path(__file__).parent.parent / "scripts"))
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from coverage_checker import (
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is_source_file,
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is_test_file,
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source_to_test_path,
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analyze_coverage,
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)
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class TestSourceFileDetection:
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def test_script_in_scripts_dir(self):
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assert is_source_file("scripts/freshness.py") is True
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def test_module_in_root(self):
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assert is_source_file("knowledge_staleness_check.py") is True
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def test_excludes_test_files(self):
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assert is_source_file("tests/test_freshness.py") is False
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def test_excludes_non_py(self):
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assert is_source_file("README.md") is False
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class TestTestFileDetection:
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def test_test_prefix(self):
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assert is_test_file("tests/test_freshness.py") is True
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def test_test_suffix(self):
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assert is_test_file("scripts/freshness_test.py") is True
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def test_regular_py_is_not_test(self):
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assert is_test_file("scripts/freshness.py") is False
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class TestSourceToTestMapping:
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def test_scripts_mapping(self):
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assert source_to_test_path("scripts/freshness.py") == "tests/test_freshness.py"
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def test_root_module_mapping(self):
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assert source_to_test_path("knowledge_staleness_check.py") == "tests/test_knowledge_staleness_check.py"
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class TestAnalyzeCoverage:
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def test_no_changes(self):
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report = analyze_coverage([])
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assert report["changed_sources"] == 0
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assert report["uncovered_sources"] == 0
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assert report["coverage_ratio"] == 1.0
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def test_all_covered(self):
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changed = [
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"scripts/freshness.py",
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"tests/test_freshness.py",
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"scripts/dedup.py",
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"tests/test_dedup.py",
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]
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report = analyze_coverage(changed)
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assert report["uncovered_sources"] == 0
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assert report["covered_sources"] == 2
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def test_gap_detected(self):
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changed = [
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"scripts/new_feature.py",
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"README.md",
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]
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report = analyze_coverage(changed)
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assert report["uncovered_sources"] == 1
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assert report["uncovered"][0]["file"] == "scripts/new_feature.py"
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assert report["uncovered"][0]["suggested_test"] == "tests/test_new_feature.py"
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def test_mixed_coverage(self):
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changed = [
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"scripts/covered.py",
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"tests/test_covered.py",
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"scripts/uncovered.py",
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]
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report = analyze_coverage(changed)
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assert report["covered_sources"] == 1
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assert report["uncovered_sources"] == 1
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def run_all():
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t = TestSourceFileDetection()
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t.test_script_in_scripts_dir()
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t.test_module_in_root()
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t.test_excludes_test_files()
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t.test_excludes_non_py()
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t2 = TestTestFileDetection()
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t2.test_test_prefix()
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t2.test_test_suffix()
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t2.test_regular_py_is_not_test()
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t3 = TestSourceToTestMapping()
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t3.test_scripts_mapping()
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t3.test_root_module_mapping()
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t4 = TestAnalyzeCoverage()
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t4.test_no_changes()
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t4.test_all_covered()
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t4.test_gap_detected()
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t4.test_mixed_coverage()
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print("All 11 tests passed!")
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if __name__ == "__main__":
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run_all()
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