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

src/devx/tools/generate_badges.py

@@ -239,6 +239,36 @@ def doc_coverage_color(pct: int) -> str:
     return "orange"
 
 
+def detect_testpaths(repo_root: Path) -> list[str]:
+    """Detect test paths from pyproject.toml or filesystem.
+
+    Parses ``testpaths`` in ``[tool.pytest.ini_options]`` from
+    pyproject.toml.  Falls back to ``["tests"]`` if the tests/
+    directory exists.  Returns an empty list if no test paths
+    are found (pytest will use its own defaults).
+    """
+    pyproject = repo_root / "pyproject.toml"
+    if pyproject.exists():
+        content = pyproject.read_text()
+        # Match: testpaths = ["dir1", "dir2"]
+        match = re.search(r"testpaths\s*=\s*\[([^\]]+)\]", content)
+        if match:
+            paths = re.findall(r'["\']([^"\']+)["\']', match.group(1))
+            resolved = []
+            for p in paths:
+                p = p.strip()
+                if (repo_root / p).exists():
+                    resolved.append(p)
+            if resolved:
+                return resolved
+
+    # Fallback: tests/ directory
+    tests_dir = repo_root / "tests"
+    if tests_dir.is_dir():
+        return ["tests"]
+    return []
+
+
 def collect_coverage_and_tests(repo_root: Path) -> tuple[dict[str, str | int], dict[str, str | int]]:
     """Run pytest-cov and collect coverage + test count badges.
 
@@ -251,8 +281,8 @@ def collect_coverage_and_tests(repo_root: Path) -> tuple[dict[str, str | int], d
         click.echo("  WARNING: No coverage target detected (no src/ package, no --cov in pyproject.toml)")
         return make_badge("coverage", "unknown", "lightgrey"), make_badge("tests", "unknown", "lightgrey")
 
-    tests_dir = repo_root / "tests"
-    testpaths: list[str] = [str(tests_dir)] if tests_dir.is_dir() else []
+    testpaths = detect_testpaths(repo_root)
+    click.echo(f"  Test paths: {testpaths or '(pytest defaults)'}")
 
     cmd = [
         sys.executable,
@@ -273,7 +303,8 @@ def collect_coverage_and_tests(repo_root: Path) -> tuple[dict[str, str | int], d
         cov_badge = make_badge("coverage", f"{coverage:.0f}%", coverage_color(coverage))
     else:
         click.echo(f"  WARNING: Could not extract coverage from pytest output (rc={rc})")
-        click.echo(f"    pytest stderr: {stderr.strip()[:200]}")
+        click.echo(f"    pytest stdout (last 300 chars): {stdout.strip()[-300:]}")
+        click.echo(f"    pytest stderr (last 300 chars): {stderr.strip()[-300:]}")
         cov_badge = make_badge("coverage", "unknown", "red")
 
     test_count = extract_test_count(combined)
@@ -281,7 +312,8 @@ def collect_coverage_and_tests(repo_root: Path) -> tuple[dict[str, str | int], d
         tests_badge = make_badge("tests", f"{test_count} passing", "brightgreen" if rc == 0 else "red")
     else:
         click.echo(f"  WARNING: Could not extract test count from pytest output (rc={rc})")
-        click.echo(f"    pytest stderr: {stderr.strip()[:200]}")
+        click.echo(f"    pytest stdout (last 300 chars): {stdout.strip()[-300:]}")
+        click.echo(f"    pytest stderr (last 300 chars): {stderr.strip()[-300:]}")
         tests_badge = make_badge("tests", "unknown", "red")
 
     return cov_badge, tests_badge