DEVX-42: fix: badge generation respects pyproject.toml testpaths, shows stdout in warnings

tests/unit/test_generate_badges.py

@@ -14,6 +14,7 @@ from devx.tools.generate_badges import (
     coverage_color,
     detect_coverage_target,
     detect_package_name,
+    detect_testpaths,
     doc_coverage_color,
     extract_coverage,
     extract_doc_coverage,
@@ -97,6 +98,32 @@ class TestDetectCoverageTarget:
         assert detect_coverage_target(tmp_path) is None
 
 
+class TestDetectTestpaths:
+    def test_parses_from_pyproject(self, tmp_path: Path) -> None:  # type: ignore[no-untyped-def]
+        (tmp_path / "scripts" / "tests").mkdir(parents=True)
+        (tmp_path / "tests" / "unit").mkdir(parents=True)
+        (tmp_path / "pyproject.toml").write_text(
+            '[tool.pytest.ini_options]\ntestpaths = ["scripts/tests", "tests/unit"]\n'
+        )
+        assert detect_testpaths(tmp_path) == ["scripts/tests", "tests/unit"]
+
+    def test_filters_nonexistent_paths(self, tmp_path: Path) -> None:  # type: ignore[no-untyped-def]
+        (tmp_path / "tests").mkdir()
+        (tmp_path / "pyproject.toml").write_text('[tool.pytest.ini_options]\ntestpaths = ["tests", "nonexistent"]\n')
+        assert detect_testpaths(tmp_path) == ["tests"]
+
+    def test_falls_back_to_tests_dir(self, tmp_path: Path) -> None:  # type: ignore[no-untyped-def]
+        (tmp_path / "tests").mkdir()
+        assert detect_testpaths(tmp_path) == ["tests"]
+
+    def test_returns_empty_when_no_tests_dir(self, tmp_path: Path) -> None:  # type: ignore[no-untyped-def]
+        assert detect_testpaths(tmp_path) == []
+
+    def test_returns_empty_when_pyproject_has_no_testpaths(self, tmp_path: Path) -> None:  # type: ignore[no-untyped-def]
+        (tmp_path / "pyproject.toml").write_text("[tool.pytest.ini_options]\naddopts = '-ra'\n")
+        assert detect_testpaths(tmp_path) == []
+
+
 class TestRunCommand:
     @patch("devx.tools.generate_badges.subprocess.run")
     def test_returns_returncode_stdout_stderr(self, mock_run: MagicMock) -> None:
@@ -256,16 +283,22 @@ class TestReadVersion:
 
 class TestCollectCoverageAndTests:
     @patch("devx.tools.generate_badges.run_command")
+    @patch("devx.tools.generate_badges.detect_testpaths", return_value=["tests"])
     @patch("devx.tools.generate_badges.detect_coverage_target", return_value="src/devx")
-    def test_extracts_coverage_and_tests(self, mock_target: MagicMock, mock_run: MagicMock, tmp_path: Path) -> None:  # type: ignore[no-untyped-def]
+    def test_extracts_coverage_and_tests(
+        self, mock_target: MagicMock, mock_testpaths: MagicMock, mock_run: MagicMock, tmp_path: Path
+    ) -> None:  # type: ignore[no-untyped-def]
         mock_run.return_value = (0, "1018 passed in 4.23s\nTOTAL 3546 0 100%", "")
         cov, tests = collect_coverage_and_tests(tmp_path)
         assert cov["message"] == "100%"
         assert tests["message"] == "1018 passing"
 
     @patch("devx.tools.generate_badges.run_command")
+    @patch("devx.tools.generate_badges.detect_testpaths", return_value=["tests"])
     @patch("devx.tools.generate_badges.detect_coverage_target", return_value="src/devx")
-    def test_returns_unknown_when_no_match(self, mock_target: MagicMock, mock_run: MagicMock, tmp_path: Path) -> None:  # type: ignore[no-untyped-def]
+    def test_returns_unknown_when_no_match(
+        self, mock_target: MagicMock, mock_testpaths: MagicMock, mock_run: MagicMock, tmp_path: Path
+    ) -> None:  # type: ignore[no-untyped-def]
         mock_run.return_value = (1, "garbled output", "some error")
         cov, tests = collect_coverage_and_tests(tmp_path)
         assert cov["message"] == "unknown"