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import sys
from unittest import mock
from unittest.mock import Mock
import pytest
from pytest_snapshot._utils import shorten_path, might_be_valid_filename, simple_version_parse, \
_pytest_expected_on_right, flatten_dict, flatten_filesystem_dict
from tests.utils import assert_pytest_passes, runpytest_with_assert_mode
from pathlib import Path
def test_help_message(testdir):
result = testdir.runpytest('--help')
result.stdout.fnmatch_lines([
'snapshot:',
'*--snapshot-update*Update snapshot files instead of testing against them.',
])
def test_default_snapshot_dir_without_parametrize(testdir):
testdir.makepyfile("""
from pathlib import Path
def test_sth(snapshot):
assert snapshot.snapshot_dir == \
Path('snapshots/test_default_snapshot_dir_without_parametrize/test_sth').absolute()
""")
assert_pytest_passes(testdir)
def test_default_snapshot_dir_with_parametrize(testdir):
testdir.makepyfile("""
import pytest
from pathlib import Path
@pytest.mark.parametrize('param', ['a', 'b'])
def test_sth(snapshot, param):
assert snapshot.snapshot_dir == \
Path('snapshots/test_default_snapshot_dir_with_parametrize/test_sth/{}'.format(param)).absolute()
""")
result = testdir.runpytest('-v')
result.stdout.fnmatch_lines([
'*::test_sth?a? PASSED*',
'*::test_sth?b? PASSED*',
])
assert result.ret == 0
def test_shorten_path_in_cwd():
assert shorten_path(Path('a/b').absolute()) == Path('a/b')
def test_shorten_path_outside_cwd():
path_outside_cwd = Path().absolute().parent.joinpath('a/b')
assert shorten_path(path_outside_cwd) == path_outside_cwd
@pytest.mark.parametrize('s, expected', [
('snapshot.txt', True),
('snapshot', True),
('.snapshot', True),
('snapshot.', True),
('', False),
('.', False),
('..', False),
('/', False),
('\\', False),
('a/b', False),
('a\\b', False),
('a:b', False),
('a"b', False),
])
def test_might_be_valid_filename(s, expected):
assert might_be_valid_filename(s) == expected
@pytest.mark.parametrize('version_str, version', [
('0.0.0', (0, 0, 0)),
('55.2312.123132', (55, 2312, 123132)),
('1.2.3rc', (1, 2, 3)),
])
def test_simple_version_parse_success(version_str, version):
assert simple_version_parse(version_str) == version
@pytest.mark.parametrize('version_str', [
'',
'rc1.2.3',
'1!2.3.4',
'a.b.c',
'1.2',
'1.2.',
])
def test_simple_version_parse_error(version_str):
with pytest.raises(ValueError):
simple_version_parse(version_str)
@pytest.mark.parametrize('version_str, expected_on_right', [
('4.9.9', False),
('5.3.9', False),
('5.4.0', True),
('5.4.1', True),
('5.5.0', True),
('6.0.0', True),
('badversion', True),
])
def test_pytest_expected_on_right(version_str, expected_on_right):
with mock.patch('pytest.__version__', version_str):
assert _pytest_expected_on_right() == expected_on_right
def test_flatten_dict():
result = flatten_dict({
'a': 1,
'b': {
'ba': 2,
'bb': {
'bba': 3,
'bbb': 4,
},
},
'empty': {},
})
result = sorted(result) # Needed to support python 3.5
assert result == [(['a'], 1), (['b', 'ba'], 2), (['b', 'bb', 'bba'], 3), (['b', 'bb', 'bbb'], 4)]
def test_flatten_filesystem_dict_success():
result = flatten_filesystem_dict({
'file1': 'file1_contents',
'dir1': {
'file2': 'file2_contents',
'dir2': {
'file3': 'file3_contents',
},
},
'empty_dir': {},
})
assert result == {
'file1': 'file1_contents',
'dir1/file2': 'file2_contents',
'dir1/dir2/file3': 'file3_contents',
}
@pytest.mark.parametrize('illegal_filename', [
'a/b',
'.',
'',
])
def test_flatten_filesystem_dict_illegal_filename(illegal_filename):
with pytest.raises(ValueError):
flatten_filesystem_dict({
illegal_filename: 'contents'
})
@pytest.mark.skipif(sys.version_info < (3, 6), reason="assert_called_once doesn't exist in Python <3.6")
def test_runpytest_with_assert_mode(request):
testdir = Mock()
runpytest_with_assert_mode(testdir, request, '--assert=plain')
runpytest_with_assert_mode(testdir, request, '--assert=rewrite')
testdir.runpytest.assert_called_once()
testdir.runpytest_subprocess.assert_called_once()
def test_runpytest_with_assert_mode_without_assert_mode(request):
testdir = Mock()
with pytest.raises(ValueError):
runpytest_with_assert_mode(testdir, request)
|
