README.md

metadata

license: mit

py500

Human-level test oracle generation in real-world Python repositories.

Here is an example:

{
    "index": 0,
    "repo_name": "black",
    "github": "https://github.com/psf/black.git",
    "version": "25.9.0",
    "install_cmd": "python -m venv .venv\nsource .venv/bin/activate\npip install -r test_requirements.txt\npip install -e .\npip install ipdb",
    "activate_cmd": "source .venv/bin/activate\nhash -r",
    "test_function_name": "test_pep_572_version_detection",
    "test_class_name": "BlackTestCase",
    "original_test_prefix": "    def test_pep_572_version_detection(self) -> None:\n        source, _ = read_data(\"cases\", \"pep_572\")\n        root = black.lib2to3_parse(source)\n        features = black.get_features_used(root)\n        self.assertIn(black.Feature.ASSIGNMENT_EXPRESSIONS, features)\n        versions = black.detect_target_versions(root)\n        self.assertIn(black.TargetVersion.PY38, versions)",
    "test_prefix": "    def test_pep_572_version_detection(self) -> None:\n        source, _ = read_data(\"cases\", \"pep_572\")\n        root = black.lib2to3_parse(source)\n        features = black.get_features_used(root)\n        self.assertIn(black.Feature.ASSIGNMENT_EXPRESSIONS, features)\n        versions = black.detect_target_versions(root)\n        <AssertPlaceHolder>",
    "test_prefix_file_path": "tests/test_black.py",
    "test_prefix_start_lineno": 243,
    "test_prefix_end_lineno": 249,
    "test_target": "tests/test_black.py::BlackTestCase::test_pep_572_version_detection",
    "ground_truth_oracle": "self.assertIn(black.TargetVersion.PY38, versions)",
    "ground_truth_oracle_lineno": 249,
    "test_setup": "",
    "test_setup_file_path": "",
    "test_setup_start_lineno": -1,
    "test_setup_end_lineno": -1,
    "focal_method": "def detect_target_versions(\n    node: Node, *, future_imports: Optional[set[str]] = None\n) -> set[TargetVersion]:\n    \"\"\"Detect the version to target based on the nodes used.\"\"\"\n    features = get_features_used(node, future_imports=future_imports)\n    return {\n        version for version in TargetVersion if features <= VERSION_TO_FEATURES[version]\n    }",
    "focal_method_file_path": "src/black/__init__.py",
    "focal_method_start_lineno": 1510,
    "focal_method_end_lineno": 1517
}

• Focal method

def detect_target_versions(
    node: Node, *, future_imports: Optional[set[str]] = None
) -> set[TargetVersion]:
    """Detect the version to target based on the nodes used."""
    features = get_features_used(node, future_imports=future_imports)
    return {
        version for version in TargetVersion if features <= VERSION_TO_FEATURES[version]
    }

• Test setup

• Test prefix

    def test_pep_572_version_detection(self) -> None:
        source, _ = read_data("cases", "pep_572")
        root = black.lib2to3_parse(source)
        features = black.get_features_used(root)
        self.assertIn(black.Feature.ASSIGNMENT_EXPRESSIONS, features)
        versions = black.detect_target_versions(root)
        <AssertPlaceHolder>

• Ground truth oracle

self.assertIn(black.TargetVersion.PY38, versions)

Install

In the script below, the test.jsonl file in the dataset needs to be renamed to py500.jsonl.

Install venv

install.py

Run

Run the ground truth oracle

run.py

Evaluate

Evaluate whether an oracle is same with the ground truth

evaluate.py

GitHub

AssertAgents