e2e: Drop bash and run the e2e tests entirely in pytest

justfile

@@ -20,14 +20,11 @@ lint:
 bandit:
     uv run bandit --configfile=pyproject.toml --quiet --recursive --severity-level=medium py_import_cycles tests
 
-e2e:
-    ./scripts/run-e2e-tests
-
 format:
     uv run ruff format
     uv run ruff check --fix
 
 docs:
     @echo "TODO: generate documentation"
 
-ci: test check-format mypy lint bandit e2e
+ci: test check-format mypy lint bandit

tests/test_e2e.py

@@ -0,0 +1,65 @@
+import shutil
+import subprocess
+from pathlib import Path
+
+import pytest
+
+REPO = Path(__file__).parent.parent
+E2E_DIR = REPO / "e2e_test_inputs"
+PROJECTS = sorted(p for p in E2E_DIR.iterdir() if p.is_dir())
+
+
+def run_tool(*args: str) -> str:
+    result = subprocess.run(
+        ["uv", "run", "-m", "py_import_cycles", *args],
+        capture_output=True,
+        text=True,
+        cwd=REPO,
+    )
+    return result.stderr.strip()
+
+
+@pytest.fixture(scope="session", autouse=True)
+def clean_e2e_pycache() -> None:
+    for d in E2E_DIR.rglob("__pycache__"):
+        shutil.rmtree(d)
+
+
+@pytest.mark.parametrize("project", PROJECTS, ids=lambda p: p.name)
+def test_main(project: Path) -> None:
+    if (skip := project / "skip_main").exists():
+        pytest.skip(skip.read_text().strip())
+    result = subprocess.run(["uv", "run", "python", str(project / "main.py")], cwd=REPO)
+    assert result.returncode == 0
+
+
+@pytest.mark.parametrize("project", PROJECTS, ids=lambda p: p.name)
+def test_packages(project: Path) -> None:
+    expected = int((project / "found_cycles").read_text())
+    packages = [str(project / w) for w in (project / "packages").read_text().split()]
+    assert (
+        run_tool("--packages", *packages, "--strategy", "johnson")
+        == f"Found {expected} import cycles"
+    )
+
+
+@pytest.mark.parametrize("project", PROJECTS, ids=lambda p: p.name)
+def test_files_absolute(project: Path) -> None:
+    expected = int((project / "found_cycles").read_text())
+    files = [f"{project}::{w}" for w in (project / "files").read_text().split()]
+    assert run_tool("--files", *files, "--strategy", "johnson") == f"Found {expected} import cycles"
+
+
+@pytest.mark.parametrize("project", PROJECTS, ids=lambda p: p.name)
+def test_files_relative(project: Path) -> None:
+    expected = int((project / "found_cycles").read_text())
+    rel = project.relative_to(REPO)
+    files = [f"{rel}::{w}" for w in (project / "files").read_text().split()]
+    assert run_tool("--files", *files, "--strategy", "johnson") == f"Found {expected} import cycles"
+
+
+def test_self() -> None:
+    assert (
+        run_tool("--packages", str(REPO / "py_import_cycles"), "--strategy", "johnson")
+        == "Found 0 import cycles"
+    )