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from __future__ import annotations
import argparse
import os.path
from unittest import mock
import pytest
import pre_commit.constants as C
from pre_commit import main
from pre_commit.errors import FatalError
from pre_commit.util import cmd_output
from testing.auto_namedtuple import auto_namedtuple
from testing.util import cwd
def _args(**kwargs):
kwargs.setdefault('command', 'help')
kwargs.setdefault('config', C.CONFIG_FILE)
if kwargs['command'] in {'run', 'try-repo'}:
kwargs.setdefault('commit_msg_filename', None)
return argparse.Namespace(**kwargs)
def test_adjust_args_and_chdir_not_in_git_dir(in_tmpdir):
with pytest.raises(FatalError):
main._adjust_args_and_chdir(_args())
def test_adjust_args_and_chdir_noop(in_git_dir):
args = _args(command='run', files=['f1', 'f2'])
main._adjust_args_and_chdir(args)
assert os.getcwd() == in_git_dir
assert args.config == C.CONFIG_FILE
assert args.files == ['f1', 'f2']
def test_adjust_args_and_chdir_relative_things(in_git_dir):
in_git_dir.join('foo/cfg.yaml').ensure()
with in_git_dir.join('foo').as_cwd():
args = _args(command='run', files=['f1', 'f2'], config='cfg.yaml')
main._adjust_args_and_chdir(args)
assert os.getcwd() == in_git_dir
assert args.config == os.path.join('foo', 'cfg.yaml')
assert args.files == [
os.path.join('foo', 'f1'),
os.path.join('foo', 'f2'),
]
def test_adjust_args_and_chdir_relative_commit_msg(in_git_dir):
in_git_dir.join('foo/cfg.yaml').ensure()
with in_git_dir.join('foo').as_cwd():
args = _args(command='run', files=[], commit_msg_filename='t.txt')
main._adjust_args_and_chdir(args)
assert os.getcwd() == in_git_dir
assert args.commit_msg_filename == os.path.join('foo', 't.txt')
@pytest.mark.skipif(os.name != 'nt', reason='windows feature')
def test_install_on_subst(in_git_dir, store): # pragma: posix no cover
assert not os.path.exists('Z:')
cmd_output('subst', 'Z:', str(in_git_dir))
try:
with cwd('Z:'):
test_adjust_args_and_chdir_noop('Z:\\')
finally:
cmd_output('subst', '/d', 'Z:')
def test_adjust_args_and_chdir_non_relative_config(in_git_dir):
with in_git_dir.join('foo').ensure_dir().as_cwd():
args = _args()
main._adjust_args_and_chdir(args)
assert os.getcwd() == in_git_dir
assert args.config == C.CONFIG_FILE
def test_adjust_args_try_repo_repo_relative(in_git_dir):
with in_git_dir.join('foo').ensure_dir().as_cwd():
args = _args(command='try-repo', repo='../foo', files=[])
assert args.repo is not None
assert os.path.exists(args.repo)
main._adjust_args_and_chdir(args)
assert os.getcwd() == in_git_dir
assert os.path.exists(args.repo)
assert args.repo == 'foo'
FNS = (
'autoupdate', 'clean', 'gc', 'hook_impl', 'install', 'install_hooks',
'migrate_config', 'run', 'sample_config', 'uninstall',
'validate_config', 'validate_manifest',
)
CMDS = tuple(fn.replace('_', '-') for fn in FNS)
@pytest.fixture
def mock_commands():
mcks = {fn: mock.patch.object(main, fn).start() for fn in FNS}
ret = auto_namedtuple(**mcks)
yield ret
for mck in ret:
mck.stop()
@pytest.fixture
def argparse_parse_args_spy():
parse_args_mock = mock.Mock()
original_parse_args = argparse.ArgumentParser.parse_args
def fake_parse_args(self, args):
# call our spy object
parse_args_mock(args)
return original_parse_args(self, args)
with mock.patch.object(
argparse.ArgumentParser, 'parse_args', fake_parse_args,
):
yield parse_args_mock
def assert_only_one_mock_called(mock_objs):
total_call_count = sum(mock_obj.call_count for mock_obj in mock_objs)
assert total_call_count == 1
def test_overall_help(mock_commands):
with pytest.raises(SystemExit):
main.main(['--help'])
def test_help_command(mock_commands, argparse_parse_args_spy):
with pytest.raises(SystemExit):
main.main(['help'])
argparse_parse_args_spy.assert_has_calls([
mock.call(['help']),
mock.call(['--help']),
])
def test_help_other_command(mock_commands, argparse_parse_args_spy):
with pytest.raises(SystemExit):
main.main(['help', 'run'])
argparse_parse_args_spy.assert_has_calls([
mock.call(['help', 'run']),
mock.call(['run', '--help']),
])
@pytest.mark.parametrize('command', CMDS)
def test_all_cmds(command, mock_commands, mock_store_dir):
main.main((command,))
assert getattr(mock_commands, command.replace('-', '_')).call_count == 1
assert_only_one_mock_called(mock_commands)
def test_try_repo(mock_store_dir):
with mock.patch.object(main, 'try_repo') as patch:
main.main(('try-repo', '.'))
assert patch.call_count == 1
def test_init_templatedir(mock_store_dir):
with mock.patch.object(main, 'init_templatedir') as patch:
main.main(('init-templatedir', 'tdir'))
assert patch.call_count == 1
assert 'tdir' in patch.call_args[0]
assert patch.call_args[1]['hook_types'] is None
assert patch.call_args[1]['skip_on_missing_config'] is True
def test_init_templatedir_options(mock_store_dir):
args = (
'init-templatedir',
'tdir',
'--hook-type',
'commit-msg',
'--no-allow-missing-config',
)
with mock.patch.object(main, 'init_templatedir') as patch:
main.main(args)
assert patch.call_count == 1
assert 'tdir' in patch.call_args[0]
assert patch.call_args[1]['hook_types'] == ['commit-msg']
assert patch.call_args[1]['skip_on_missing_config'] is False
def test_help_cmd_in_empty_directory(
in_tmpdir,
mock_commands,
argparse_parse_args_spy,
):
with pytest.raises(SystemExit):
main.main(['help', 'run'])
argparse_parse_args_spy.assert_has_calls([
mock.call(['help', 'run']),
mock.call(['run', '--help']),
])
def test_expected_fatal_error_no_git_repo(in_tmpdir, cap_out, mock_store_dir):
with pytest.raises(SystemExit):
main.main([])
log_file = os.path.join(mock_store_dir, 'pre-commit.log')
cap_out_lines = cap_out.get().splitlines()
assert (
cap_out_lines[-2] ==
'An error has occurred: FatalError: git failed. '
'Is it installed, and are you in a Git repository directory?'
)
assert cap_out_lines[-1] == f'Check the log at {log_file}'
def test_hook_stage_migration(mock_store_dir):
with mock.patch.object(main, 'run') as mck:
main.main(('run', '--hook-stage', 'commit'))
assert mck.call_args[0][2].hook_stage == 'pre-commit'
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