diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/test_utils.py | 153 |
1 files changed, 124 insertions, 29 deletions
diff --git a/test/test_utils.py b/test/test_utils.py index 5fab05f7c..1fc16ed05 100644 --- a/test/test_utils.py +++ b/test/test_utils.py @@ -79,10 +79,12 @@ from youtube_dl.utils import ( rot47, shell_quote, smuggle_url, + str_or_none, str_to_int, strip_jsonp, strip_or_none, subtitles_filename, + T, timeconvert, traverse_obj, try_call, @@ -1566,6 +1568,7 @@ Line 1 self.assertEqual(variadic('spam', allowed_types=[dict]), 'spam') def test_traverse_obj(self): + str = compat_str _TEST_DATA = { 100: 100, 1.2: 1.2, @@ -1598,8 +1601,8 @@ Line 1 # Test Ellipsis behavior self.assertCountEqual(traverse_obj(_TEST_DATA, Ellipsis), - (item for item in _TEST_DATA.values() if item is not None), - msg='`...` should give all values except `None`') + (item for item in _TEST_DATA.values() if item not in (None, {})), + msg='`...` should give all non discarded values') self.assertCountEqual(traverse_obj(_TEST_DATA, ('urls', 0, Ellipsis)), _TEST_DATA['urls'][0].values(), msg='`...` selection for dicts should select all values') self.assertEqual(traverse_obj(_TEST_DATA, (Ellipsis, Ellipsis, 'url')), @@ -1607,13 +1610,51 @@ Line 1 msg='nested `...` queries should work') self.assertCountEqual(traverse_obj(_TEST_DATA, (Ellipsis, Ellipsis, 'index')), range(4), msg='`...` query result should be flattened') + self.assertEqual(traverse_obj(iter(range(4)), Ellipsis), list(range(4)), + msg='`...` should accept iterables') # Test function as key self.assertEqual(traverse_obj(_TEST_DATA, lambda x, y: x == 'urls' and isinstance(y, list)), [_TEST_DATA['urls']], msg='function as query key should perform a filter based on (key, value)') - self.assertCountEqual(traverse_obj(_TEST_DATA, lambda _, x: isinstance(x[0], compat_str)), ('str',), - msg='exceptions in the query function should be caught') + self.assertCountEqual(traverse_obj(_TEST_DATA, lambda _, x: isinstance(x[0], str)), {'str'}, + msg='exceptions in the query function should be catched') + self.assertEqual(traverse_obj(iter(range(4)), lambda _, x: x % 2 == 0), [0, 2], + msg='function key should accept iterables') + if __debug__: + with self.assertRaises(Exception, msg='Wrong function signature should raise in debug'): + traverse_obj(_TEST_DATA, lambda a: Ellipsis) + with self.assertRaises(Exception, msg='Wrong function signature should raise in debug'): + traverse_obj(_TEST_DATA, lambda a, b, c: Ellipsis) + + # Test set as key (transformation/type, like `expected_type`) + self.assertEqual(traverse_obj(_TEST_DATA, (Ellipsis, T(str.upper), )), ['STR'], + msg='Function in set should be a transformation') + self.assertEqual(traverse_obj(_TEST_DATA, (Ellipsis, T(str))), ['str'], + msg='Type in set should be a type filter') + self.assertEqual(traverse_obj(_TEST_DATA, T(dict)), _TEST_DATA, + msg='A single set should be wrapped into a path') + self.assertEqual(traverse_obj(_TEST_DATA, (Ellipsis, T(str.upper))), ['STR'], + msg='Transformation function should not raise') + self.assertEqual(traverse_obj(_TEST_DATA, (Ellipsis, T(str_or_none))), + [item for item in map(str_or_none, _TEST_DATA.values()) if item is not None], + msg='Function in set should be a transformation') + if __debug__: + with self.assertRaises(Exception, msg='Sets with length != 1 should raise in debug'): + traverse_obj(_TEST_DATA, set()) + with self.assertRaises(Exception, msg='Sets with length != 1 should raise in debug'): + traverse_obj(_TEST_DATA, {str.upper, str}) + + # Test `slice` as a key + _SLICE_DATA = [0, 1, 2, 3, 4] + self.assertEqual(traverse_obj(_TEST_DATA, ('dict', slice(1))), None, + msg='slice on a dictionary should not throw') + self.assertEqual(traverse_obj(_SLICE_DATA, slice(1)), _SLICE_DATA[:1], + msg='slice key should apply slice to sequence') + self.assertEqual(traverse_obj(_SLICE_DATA, slice(1, 2)), _SLICE_DATA[1:2], + msg='slice key should apply slice to sequence') + self.assertEqual(traverse_obj(_SLICE_DATA, slice(1, 4, 2)), _SLICE_DATA[1:4:2], + msg='slice key should apply slice to sequence') # Test alternative paths self.assertEqual(traverse_obj(_TEST_DATA, 'fail', 'str'), 'str', @@ -1659,15 +1700,23 @@ Line 1 {0: ['https://www.example.com/1', 'https://www.example.com/0']}, msg='triple nesting in dict path should be treated as branches') self.assertEqual(traverse_obj(_TEST_DATA, {0: 'fail'}), {}, - msg='remove `None` values when dict key') + msg='remove `None` values when top level dict key fails') self.assertEqual(traverse_obj(_TEST_DATA, {0: 'fail'}, default=Ellipsis), {0: Ellipsis}, - msg='do not remove `None` values if `default`') - self.assertEqual(traverse_obj(_TEST_DATA, {0: 'dict'}), {0: {}}, - msg='do not remove empty values when dict key') - self.assertEqual(traverse_obj(_TEST_DATA, {0: 'dict'}, default=Ellipsis), {0: {}}, - msg='do not remove empty values when dict key and a default') - self.assertEqual(traverse_obj(_TEST_DATA, {0: ('dict', Ellipsis)}), {0: []}, - msg='if branch in dict key not successful, return `[]`') + msg='use `default` if key fails and `default`') + self.assertEqual(traverse_obj(_TEST_DATA, {0: 'dict'}), {}, + msg='remove empty values when dict key') + self.assertEqual(traverse_obj(_TEST_DATA, {0: 'dict'}, default=Ellipsis), {0: Ellipsis}, + msg='use `default` when dict key and `default`') + self.assertEqual(traverse_obj(_TEST_DATA, {0: {0: 'fail'}}), {}, + msg='remove empty values when nested dict key fails') + self.assertEqual(traverse_obj(None, {0: 'fail'}), {}, + msg='default to dict if pruned') + self.assertEqual(traverse_obj(None, {0: 'fail'}, default=Ellipsis), {0: Ellipsis}, + msg='default to dict if pruned and default is given') + self.assertEqual(traverse_obj(_TEST_DATA, {0: {0: 'fail'}}, default=Ellipsis), {0: {0: Ellipsis}}, + msg='use nested `default` when nested dict key fails and `default`') + self.assertEqual(traverse_obj(_TEST_DATA, {0: ('dict', Ellipsis)}), {}, + msg='remove key if branch in dict key not successful') # Testing default parameter behavior _DEFAULT_DATA = {'None': None, 'int': 0, 'list': []} @@ -1691,20 +1740,55 @@ Line 1 msg='if branched but not successful return `[]`, not `default`') self.assertEqual(traverse_obj(_DEFAULT_DATA, ('list', Ellipsis)), [], msg='if branched but object is empty return `[]`, not `default`') + self.assertEqual(traverse_obj(None, Ellipsis), [], + msg='if branched but object is `None` return `[]`, not `default`') + self.assertEqual(traverse_obj({0: None}, (0, Ellipsis)), [], + msg='if branched but state is `None` return `[]`, not `default`') + + branching_paths = [ + ('fail', Ellipsis), + (Ellipsis, 'fail'), + 100 * ('fail',) + (Ellipsis,), + (Ellipsis,) + 100 * ('fail',), + ] + for branching_path in branching_paths: + self.assertEqual(traverse_obj({}, branching_path), [], + msg='if branched but state is `None`, return `[]` (not `default`)') + self.assertEqual(traverse_obj({}, 'fail', branching_path), [], + msg='if branching in last alternative and previous did not match, return `[]` (not `default`)') + self.assertEqual(traverse_obj({0: 'x'}, 0, branching_path), 'x', + msg='if branching in last alternative and previous did match, return single value') + self.assertEqual(traverse_obj({0: 'x'}, branching_path, 0), 'x', + msg='if branching in first alternative and non-branching path does match, return single value') + self.assertEqual(traverse_obj({}, branching_path, 'fail'), None, + msg='if branching in first alternative and non-branching path does not match, return `default`') # Testing expected_type behavior _EXPECTED_TYPE_DATA = {'str': 'str', 'int': 0} - self.assertEqual(traverse_obj(_EXPECTED_TYPE_DATA, 'str', expected_type=compat_str), 'str', - msg='accept matching `expected_type` type') - self.assertEqual(traverse_obj(_EXPECTED_TYPE_DATA, 'str', expected_type=int), None, - msg='reject non matching `expected_type` type') - self.assertEqual(traverse_obj(_EXPECTED_TYPE_DATA, 'int', expected_type=lambda x: compat_str(x)), '0', - msg='transform type using type function') - self.assertEqual(traverse_obj(_EXPECTED_TYPE_DATA, 'str', - expected_type=lambda _: 1 / 0), None, - msg='wrap expected_type function in try_call') - self.assertEqual(traverse_obj(_EXPECTED_TYPE_DATA, Ellipsis, expected_type=compat_str), ['str'], - msg='eliminate items that expected_type fails on') + self.assertEqual(traverse_obj(_EXPECTED_TYPE_DATA, 'str', expected_type=str), + 'str', msg='accept matching `expected_type` type') + self.assertEqual(traverse_obj(_EXPECTED_TYPE_DATA, 'str', expected_type=int), + None, msg='reject non matching `expected_type` type') + self.assertEqual(traverse_obj(_EXPECTED_TYPE_DATA, 'int', expected_type=lambda x: str(x)), + '0', msg='transform type using type function') + self.assertEqual(traverse_obj(_EXPECTED_TYPE_DATA, 'str', expected_type=lambda _: 1 / 0), + None, msg='wrap expected_type function in try_call') + self.assertEqual(traverse_obj(_EXPECTED_TYPE_DATA, Ellipsis, expected_type=str), + ['str'], msg='eliminate items that expected_type fails on') + self.assertEqual(traverse_obj(_TEST_DATA, {0: 100, 1: 1.2}, expected_type=int), + {0: 100}, msg='type as expected_type should filter dict values') + self.assertEqual(traverse_obj(_TEST_DATA, {0: 100, 1: 1.2, 2: 'None'}, expected_type=str_or_none), + {0: '100', 1: '1.2'}, msg='function as expected_type should transform dict values') + self.assertEqual(traverse_obj(_TEST_DATA, ({0: 1.2}, 0, {int_or_none}), expected_type=int), + 1, msg='expected_type should not filter non final dict values') + self.assertEqual(traverse_obj(_TEST_DATA, {0: {0: 100, 1: 'str'}}, expected_type=int), + {0: {0: 100}}, msg='expected_type should transform deep dict values') + self.assertEqual(traverse_obj(_TEST_DATA, [({0: '...'}, {0: '...'})], expected_type=type(Ellipsis)), + [{0: Ellipsis}, {0: Ellipsis}], msg='expected_type should transform branched dict values') + self.assertEqual(traverse_obj({1: {3: 4}}, [(1, 2), 3], expected_type=int), + [4], msg='expected_type regression for type matching in tuple branching') + self.assertEqual(traverse_obj(_TEST_DATA, ['data', Ellipsis], expected_type=int), + [], msg='expected_type regression for type matching in dict result') # Test get_all behavior _GET_ALL_DATA = {'key': [0, 1, 2]} @@ -1749,14 +1833,23 @@ Line 1 _traverse_string=True), '.', msg='traverse into converted data if `traverse_string`') self.assertEqual(traverse_obj(_TRAVERSE_STRING_DATA, ('str', Ellipsis), - _traverse_string=True), list('str'), - msg='`...` branching into string should result in list') + _traverse_string=True), 'str', + msg='`...` should result in string (same value) if `traverse_string`') + self.assertEqual(traverse_obj(_TRAVERSE_STRING_DATA, ('str', slice(0, None, 2)), + _traverse_string=True), 'sr', + msg='`slice` should result in string if `traverse_string`') + self.assertEqual(traverse_obj(_TRAVERSE_STRING_DATA, ('str', lambda i, v: i or v == "s"), + _traverse_string=True), 'str', + msg='function should result in string if `traverse_string`') self.assertEqual(traverse_obj(_TRAVERSE_STRING_DATA, ('str', (0, 2)), _traverse_string=True), ['s', 'r'], - msg='branching into string should result in list') - self.assertEqual(traverse_obj(_TRAVERSE_STRING_DATA, ('str', lambda _, x: x), - _traverse_string=True), list('str'), - msg='function branching into string should result in list') + msg='branching should result in list if `traverse_string`') + self.assertEqual(traverse_obj({}, (0, Ellipsis), _traverse_string=True), [], + msg='branching should result in list if `traverse_string`') + self.assertEqual(traverse_obj({}, (0, lambda x, y: True), _traverse_string=True), [], + msg='branching should result in list if `traverse_string`') + self.assertEqual(traverse_obj({}, (0, slice(1)), _traverse_string=True), [], + msg='branching should result in list if `traverse_string`') # Test is_user_input behavior _IS_USER_INPUT_DATA = {'range8': list(range(8))} @@ -1793,6 +1886,8 @@ Line 1 msg='failing str key on a `re.Match` should return `default`') self.assertEqual(traverse_obj(mobj, 8), None, msg='failing int key on a `re.Match` should return `default`') + self.assertEqual(traverse_obj(mobj, lambda k, _: k in (0, 'group')), ['0123', '3'], + msg='function on a `re.Match` should give group name as well') def test_get_first(self): self.assertEqual(get_first([{'a': None}, {'a': 'spam'}], 'a'), 'spam') |