mirror of
https://github.com/pre-commit/pre-commit-hooks.git
synced 2026-04-05 19:46:54 +00:00
9e89b7616a
1. Disable automatic `git commit` GPG-signing, since that requires interaction. This issue was encountered in practice by me, causing spurious test failures 2. In case path operands could turn out to start with dashes, escape the operand list with '--'.
130 lines
4 KiB
Python
130 lines
4 KiB
Python
from __future__ import absolute_import
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from __future__ import unicode_literals
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import os
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import shutil
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import pytest
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from pre_commit_hooks.check_merge_conflict import detect_merge_conflict
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from pre_commit_hooks.util import cmd_output
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from testing.util import get_resource_path
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from testing.util import write_file
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# pylint:disable=unused-argument
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@pytest.yield_fixture
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def f1_is_a_conflict_file(tmpdir):
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# Make a merge conflict
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repo1 = tmpdir.join('repo1')
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repo1_f1 = repo1.join('f1')
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repo2 = tmpdir.join('repo2')
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repo2_f1 = repo2.join('f1')
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cmd_output('git', 'init', '--', repo1.strpath)
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with repo1.as_cwd():
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repo1_f1.ensure()
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cmd_output('git', 'add', '--', repo1_f1.strpath)
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cmd_output('git', 'commit', '--no-gpg-sign', '-m', 'commit1')
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cmd_output('git', 'clone', repo1.strpath, repo2.strpath)
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# Commit in master
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with repo1.as_cwd():
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repo1_f1.write('parent\n')
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cmd_output('git', 'commit', '--no-gpg-sign', '-am', 'master commit2')
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# Commit in clone and pull
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with repo2.as_cwd():
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repo2_f1.write('child\n')
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cmd_output('git', 'commit', '--no-gpg-sign', '-am', 'clone commit2')
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cmd_output('git', 'pull', retcode=None)
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# We should end up in a merge conflict!
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f1 = repo2_f1.read()
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assert f1.startswith(
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'<<<<<<< HEAD\n'
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'child\n'
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'=======\n'
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'parent\n'
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'>>>>>>>'
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) or f1.startswith(
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'<<<<<<< HEAD\n'
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'child\n'
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# diff3 conflict style git merges add this line:
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'||||||| merged common ancestors\n'
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'=======\n'
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'parent\n'
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'>>>>>>>'
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)
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assert os.path.exists(os.path.join('.git', 'MERGE_MSG'))
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yield
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@pytest.yield_fixture
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def repository_is_pending_merge(tmpdir):
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# Make a (non-conflicting) merge
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repo1 = tmpdir.join('repo1')
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repo1_f1 = repo1.join('f1')
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repo2 = tmpdir.join('repo2')
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repo2_f1 = repo2.join('f1')
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repo2_f2 = repo2.join('f2')
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cmd_output('git', 'init', repo1.strpath)
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with repo1.as_cwd():
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repo1_f1.ensure()
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cmd_output('git', 'add', '--', repo1_f1.strpath)
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cmd_output('git', 'commit', '--no-gpg-sign', '-m', 'commit1')
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cmd_output('git', 'clone', repo1.strpath, repo2.strpath)
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# Commit in master
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with repo1.as_cwd():
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repo1_f1.write('parent\n')
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cmd_output('git', 'commit', '--no-gpg-sign', '-am', 'master commit2')
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# Commit in clone and pull without committing
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with repo2.as_cwd():
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repo2_f2.write('child\n')
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cmd_output('git', 'add', '--', repo2_f2.strpath)
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cmd_output('git', 'commit', '--no-gpg-sign', '-m', 'clone commit2')
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cmd_output('git', 'pull', '--no-commit')
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# We should end up in a pending merge
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assert repo2_f1.read() == 'parent\n'
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assert repo2_f2.read() == 'child\n'
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assert os.path.exists(os.path.join('.git', 'MERGE_HEAD'))
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yield
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@pytest.mark.usefixtures('f1_is_a_conflict_file')
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def test_merge_conflicts_git():
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assert detect_merge_conflict(['f1']) == 1
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@pytest.mark.parametrize(
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'failing_contents', ('<<<<<<< HEAD\n', '=======\n', '>>>>>>> master\n'),
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)
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@pytest.mark.usefixtures('repository_is_pending_merge')
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def test_merge_conflicts_failing(failing_contents):
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write_file('f2', failing_contents)
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assert detect_merge_conflict(['f2']) == 1
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@pytest.mark.parametrize(
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'ok_contents', ('# <<<<<<< HEAD\n', '# =======\n', 'import my_module', ''),
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)
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@pytest.mark.usefixtures('f1_is_a_conflict_file')
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def test_merge_conflicts_ok(ok_contents):
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write_file('f1', ok_contents)
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assert detect_merge_conflict(['f1']) == 0
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@pytest.mark.usefixtures('f1_is_a_conflict_file')
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def test_ignores_binary_files():
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shutil.copy(get_resource_path('img1.jpg'), 'f1')
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assert detect_merge_conflict(['f1']) == 0
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def test_does_not_care_when_not_in_a_merge(tmpdir):
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tmpdir.join('README.md').write('problem\n=======\n')
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assert detect_merge_conflict(['README.md']) == 0
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