mirror of
https://github.com/pre-commit/pre-commit.git
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2c88791a7f
`try-repo` is useful for: - Trying out a remote hook repository without needing to configure it. - Testing a hook repository while developing it.
142 lines
3.5 KiB
Python
142 lines
3.5 KiB
Python
from __future__ import absolute_import
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from __future__ import unicode_literals
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import argparse
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import os.path
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import mock
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import pytest
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from pre_commit import main
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from pre_commit.util import cwd
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from testing.auto_namedtuple import auto_namedtuple
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FNS = (
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'autoupdate', 'clean', 'install', 'install_hooks', 'migrate_config', 'run',
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'sample_config', 'uninstall',
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)
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CMDS = tuple(fn.replace('_', '-') for fn in FNS)
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@pytest.yield_fixture
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def mock_commands():
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mcks = {fn: mock.patch.object(main, fn).start() for fn in FNS}
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ret = auto_namedtuple(**mcks)
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yield ret
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for mck in ret:
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mck.stop()
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class CalledExit(Exception):
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pass
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@pytest.yield_fixture
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def argparse_exit_mock():
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with mock.patch.object(
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argparse.ArgumentParser, 'exit', side_effect=CalledExit,
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) as exit_mock:
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yield exit_mock
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@pytest.yield_fixture
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def argparse_parse_args_spy():
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parse_args_mock = mock.Mock()
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original_parse_args = argparse.ArgumentParser.parse_args
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def fake_parse_args(self, args):
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# call our spy object
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parse_args_mock(args)
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return original_parse_args(self, args)
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with mock.patch.object(
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argparse.ArgumentParser, 'parse_args', fake_parse_args,
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):
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yield parse_args_mock
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def assert_only_one_mock_called(mock_objs):
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total_call_count = sum(mock_obj.call_count for mock_obj in mock_objs)
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assert total_call_count == 1
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def test_overall_help(mock_commands, argparse_exit_mock):
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with pytest.raises(CalledExit):
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main.main(['--help'])
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def test_help_command(
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mock_commands, argparse_exit_mock, argparse_parse_args_spy,
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):
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with pytest.raises(CalledExit):
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main.main(['help'])
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argparse_parse_args_spy.assert_has_calls([
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mock.call(['help']),
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mock.call(['--help']),
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])
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def test_help_other_command(
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mock_commands, argparse_exit_mock, argparse_parse_args_spy,
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):
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with pytest.raises(CalledExit):
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main.main(['help', 'run'])
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argparse_parse_args_spy.assert_has_calls([
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mock.call(['help', 'run']),
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mock.call(['run', '--help']),
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])
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@pytest.mark.parametrize('command', CMDS)
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def test_all_cmds(command, mock_commands):
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main.main((command,))
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assert getattr(mock_commands, command.replace('-', '_')).call_count == 1
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assert_only_one_mock_called(mock_commands)
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def test_try_repo():
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with mock.patch.object(main, 'try_repo') as patch:
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main.main(('try-repo', '.'))
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assert patch.call_count == 1
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def test_help_cmd_in_empty_directory(
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mock_commands,
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tempdir_factory,
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argparse_exit_mock,
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argparse_parse_args_spy,
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):
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path = tempdir_factory.get()
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with cwd(path):
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with pytest.raises(CalledExit):
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main.main(['help', 'run'])
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argparse_parse_args_spy.assert_has_calls([
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mock.call(['help', 'run']),
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mock.call(['run', '--help']),
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])
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def test_expected_fatal_error_no_git_repo(
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tempdir_factory, cap_out, mock_out_store_directory,
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):
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with cwd(tempdir_factory.get()):
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with pytest.raises(SystemExit):
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main.main([])
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log_file = os.path.join(mock_out_store_directory, 'pre-commit.log')
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assert cap_out.get() == (
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'An error has occurred: FatalError: git failed. '
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'Is it installed, and are you in a Git repository directory?\n'
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'Check the log at {}\n'.format(log_file)
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)
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def test_warning_on_tags_only(mock_commands, cap_out):
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main.main(('autoupdate', '--tags-only'))
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assert '--tags-only is the default' in cap_out.get()
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