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crank/tests/unit/test_check_rust_boundaries.py
github-ops 5970db5449
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Add Rust workspace boundary check
2026-06-20 20:55:55 +00:00

93 lines
3.2 KiB
Python

import importlib.util
import sys
import unittest
from pathlib import Path
ROOT = Path(__file__).resolve().parents[2]
CHECKER = ROOT / "scripts" / "check-rust-boundaries.py"
def load_checker_module():
spec = importlib.util.spec_from_file_location("check_rust_boundaries", CHECKER)
module = importlib.util.module_from_spec(spec)
assert spec.loader is not None
sys.modules[spec.name] = module
spec.loader.exec_module(module)
return module
def package(root: Path, name: str, rel_dir: str, dependencies: list[str] | None = None) -> dict:
dependencies = dependencies or []
return {
"id": f"path+file://{root / rel_dir}#{name}",
"name": name,
"manifest_path": str(root / rel_dir / "Cargo.toml"),
"dependencies": [{"name": dependency} for dependency in dependencies],
}
def metadata(packages: list[dict], root: Path | None = None) -> dict:
root = root or Path("/tmp/crank")
return {
"workspace_root": str(root),
"workspace_members": [pkg["id"] for pkg in packages],
"packages": packages,
}
class RustBoundaryCheckTests(unittest.TestCase):
def setUp(self) -> None:
self.checker = load_checker_module()
self.root = Path("/tmp/crank")
def test_allows_apps_to_depend_on_workspace_crates(self) -> None:
packages = [
package(self.root, "admin-api", "apps/admin-api", ["crank-runtime"]),
package(self.root, "crank-runtime", "crates/crank-runtime", ["crank-core"]),
package(self.root, "crank-core", "crates/crank-core"),
]
violations = self.checker.find_violations(metadata(packages, self.root))
self.assertEqual(violations, [])
def test_rejects_core_dependency_on_runtime(self) -> None:
packages = [
package(self.root, "crank-core", "crates/crank-core", ["crank-runtime"]),
package(self.root, "crank-runtime", "crates/crank-runtime"),
]
violations = self.checker.find_violations(metadata(packages, self.root))
self.assertEqual(len(violations), 1)
self.assertEqual(violations[0].source, "crank-core")
self.assertEqual(violations[0].dependency, "crank-runtime")
def test_rejects_workspace_crate_dependency_on_app(self) -> None:
packages = [
package(self.root, "crank-runtime", "crates/crank-runtime", ["admin-api"]),
package(self.root, "admin-api", "apps/admin-api"),
]
violations = self.checker.find_violations(metadata(packages, self.root))
self.assertEqual(len(violations), 1)
self.assertIn("must not depend on apps", violations[0].reason)
def test_rejects_registry_dependency_on_adapter(self) -> None:
packages = [
package(self.root, "crank-registry", "crates/crank-registry", ["crank-adapter-rest"]),
package(self.root, "crank-adapter-rest", "crates/crank-adapter-rest"),
]
violations = self.checker.find_violations(metadata(packages, self.root))
self.assertEqual(len(violations), 1)
self.assertEqual(violations[0].source, "crank-registry")
self.assertEqual(violations[0].dependency, "crank-adapter-rest")
if __name__ == "__main__":
unittest.main()