mirror of
https://github.com/pre-commit/pre-commit.git
synced 2026-01-14 04:50:20 -06:00
130 lines
4.3 KiB
Python
130 lines
4.3 KiB
Python
import io
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import mock
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import os
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import os.path
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import pytest
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import shutil
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from plumbum import local
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from pre_commit import five
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from pre_commit.store import _get_default_directory
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from pre_commit.store import logger
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from pre_commit.store import Store
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from testing.util import get_head_sha
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def test_our_session_fixture_works():
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"""There's a session fixture which makes `Store` invariantly raise to
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prevent writing to the home directory.
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"""
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with pytest.raises(AssertionError):
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Store()
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def test_get_default_directory_defaults_to_home():
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# Not we use the module level one which is not mocked
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ret = _get_default_directory()
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assert ret == os.path.join(os.environ['HOME'], '.pre-commit')
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def test_store_require_created(store):
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assert not os.path.exists(store.directory)
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store.require_created()
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# Should create the store directory
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assert os.path.exists(store.directory)
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# Should create a README file indicating what the directory is about
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with io.open(os.path.join(store.directory, 'README'), 'r') as readme_file:
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readme_contents = readme_file.read()
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for text_line in (
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'This directory is maintained by the pre-commit project.',
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'Learn more: https://github.com/pre-commit/pre-commit',
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):
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assert text_line in readme_contents
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def test_store_require_created_does_not_create_twice(store):
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assert not os.path.exists(store.directory)
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store.require_created()
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# We intentionally delete the directory here so we can figure out if it
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# calls it again.
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shutil.rmtree(store.directory)
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assert not os.path.exists(store.directory)
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# Call require_created, this should not trigger a call to create
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store.require_created()
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assert not os.path.exists(store.directory)
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def test_does_not_recreate_if_directory_already_exists(store):
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assert not os.path.exists(store.directory)
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# We manually create the directory.
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# Note: we're intentionally leaving out the README file. This is so we can
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# know that `Store` didn't call create
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os.mkdir(store.directory)
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# Call require_created, this should not call create
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store.require_created()
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assert not os.path.exists(os.path.join(store.directory, 'README'))
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@pytest.yield_fixture
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def log_info_mock():
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with mock.patch.object(logger, 'info', autospec=True) as info_mock:
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yield info_mock
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def test_clone(store, empty_git_dir, log_info_mock):
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with local.cwd(empty_git_dir):
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local['git']('commit', '--allow-empty', '-m', 'foo')
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sha = get_head_sha(empty_git_dir)
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local['git']('commit', '--allow-empty', '-m', 'bar')
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ret = store.clone(empty_git_dir, sha)
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# Should have printed some stuff
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log_info_mock.assert_called_with('This may take a few minutes...')
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# Should return a directory inside of the store
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assert os.path.exists(ret)
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assert ret.startswith(store.directory)
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# Directory should start with `repo`
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_, dirname = os.path.split(ret)
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assert dirname.startswith('repo')
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# Should be checked out to the sha we specified
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assert get_head_sha(ret) == sha
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# Assert that we made a symlink from the sha to the repo
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sha_path = os.path.join(store.directory, sha)
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assert os.path.exists(sha_path)
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assert os.path.islink(sha_path)
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assert os.readlink(sha_path) == ret
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def test_clone_cleans_up_on_checkout_failure(store):
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try:
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# This raises an exception because you can't clone something that
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# doesn't exist!
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store.clone('/i_dont_exist_lol', 'fake_sha')
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except Exception as e:
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assert '/i_dont_exist_lol' in five.text(e)
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things_starting_with_repo = [
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thing for thing in os.listdir(store.directory)
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if thing.startswith('repo')
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]
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assert things_starting_with_repo == []
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def test_has_cmd_runner_at_directory(store):
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ret = store.cmd_runner
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assert ret.prefix_dir == store.directory + os.sep
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def test_clone_when_repo_already_exists(store):
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# Create a symlink and directory in the store simulating an already
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# created repository.
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store.require_created()
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repo_dir_path = os.path.join(store.directory, 'repo_dir')
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os.mkdir(repo_dir_path)
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os.symlink(repo_dir_path, os.path.join(store.directory, 'fake_sha'))
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ret = store.clone('url', 'fake_sha')
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assert ret == repo_dir_path
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