from pre_commit_hooks.tests_should_end_in_test import validate_files def test_validate_files_all_pass(print_mock): ret = validate_files(['foo_test.py', 'bar_test.py']) assert ret == 0 assert print_mock.call_count == 0 def test_validate_files_one_fails(print_mock): ret = validate_files(['not_test_ending.py', 'foo_test.py']) assert ret == 1 assert print_mock.call_count == 1