Function test_performance_comparison

ci/tests/test_fingerprint_integration.py:131–178

Compare performance across cache types.

()

def test_performance_comparison() -> None:
    """Compare performance across cache types."""
    with tempfile.TemporaryDirectory() as temp_dir:
        temp_path = Path(temp_dir)
        test_dir = temp_path / "test_files"
        cache_dir = temp_path / ".cache"
        cache_dir.mkdir(exist_ok=True)

        create_test_files(test_dir, 100)
        include = ["**/*.txt"]
        root = str(test_dir)

        # TwoLayerFingerprintCache performance
        two_layer = TwoLayerFingerprintCache(cache_dir, "perf_two_layer")
        start = time.time()
        two_layer.check_needs_update(include=include, root=root)
        two_layer_time = time.time() - start
        two_layer.mark_success()

        # Cache hit performance
        start = time.time()
        two_layer.check_needs_update(include=include, root=root)
        two_layer_hit_time = time.time() - start

        assert two_layer_time < 15.0, (
            f"TwoLayerFingerprintCache first check too slow: {two_layer_time:.3f}s"
        )
        assert two_layer_hit_time < 5.0, (
            f"TwoLayerFingerprintCache cache hit too slow: {two_layer_hit_time:.3f}s"
        )

        # HashFingerprintCache performance
        hash_cache = HashFingerprintCache(cache_dir, "perf_hash")
        start = time.time()
        hash_cache.check_needs_update(include=include, root=root)
        hash_time = time.time() - start
        hash_cache.mark_success()

        start = time.time()
        hash_cache.check_needs_update(include=include, root=root)
        hash_hit_time = time.time() - start

        assert hash_time < 5.0, (
            f"HashFingerprintCache first check too slow: {hash_time:.3f}s"
        )
        assert hash_hit_time < 5.0, (
            f"HashFingerprintCache cache hit too slow: {hash_hit_time:.3f}s"
        )


def test_accuracy_all_caches() -> None: