import pathlib
import pytest
import sklearn


def test_files_generated_by_templates_are_git_ignored():
    """Check the consistence of the files generated from template files."""
    gitignore_file = pathlib.Path(sklearn.__file__).parent.parent / ".gitignore"
    if not gitignore_file.exists():
        pytest.skip("Tests are not run from the source folder")

    base_dir = pathlib.Path(sklearn.__file__).parent
    ignored_files = gitignore_file.read_text().split("\n")
    ignored_files = [pathlib.Path(line) for line in ignored_files]

    for filename in base_dir.glob("**/*.tp"):
        filename = filename.relative_to(base_dir.parent)
        # From "path/to/template.p??.tp" to "path/to/template.p??"
        filename_wo_tempita_suffix = filename.with_suffix("")
        assert filename_wo_tempita_suffix in ignored_files