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				https://github.com/ytdl-org/youtube-dl
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			510 lines
		
	
	
		
			30 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			510 lines
		
	
	
		
			30 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
| #!/usr/bin/env python
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| # coding: utf-8
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| from __future__ import unicode_literals
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| 
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| # Allow direct execution
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| import os
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| import sys
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| import unittest
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| sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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| 
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| 
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| import re
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| 
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| from youtube_dl.traversal import (
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|     dict_get,
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|     get_first,
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|     T,
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|     traverse_obj,
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| )
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| from youtube_dl.compat import (
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|     compat_etree_fromstring,
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|     compat_http_cookies,
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|     compat_str,
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| )
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| from youtube_dl.utils import (
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|     int_or_none,
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|     str_or_none,
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| )
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| 
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| _TEST_DATA = {
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|     100: 100,
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|     1.2: 1.2,
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|     'str': 'str',
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|     'None': None,
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|     '...': Ellipsis,
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|     'urls': [
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|         {'index': 0, 'url': 'https://www.example.com/0'},
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|         {'index': 1, 'url': 'https://www.example.com/1'},
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|     ],
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|     'data': (
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|         {'index': 2},
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|         {'index': 3},
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|     ),
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|     'dict': {},
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| }
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| 
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| 
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| if sys.version_info < (3, 0):
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|     class _TestCase(unittest.TestCase):
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| 
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|         def assertCountEqual(self, *args, **kwargs):
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|             return self.assertItemsEqual(*args, **kwargs)
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| else:
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|     _TestCase = unittest.TestCase
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| 
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| 
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| class TestTraversal(_TestCase):
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|     def assertMaybeCountEqual(self, *args, **kwargs):
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|         if sys.version_info < (3, 7):
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|             # random dict order
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|             return self.assertCountEqual(*args, **kwargs)
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|         else:
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|             return self.assertEqual(*args, **kwargs)
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| 
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|     def test_traverse_obj(self):
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|         # instant compat
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|         str = compat_str
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| 
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|         # define a pukka Iterable
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|         def iter_range(stop):
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|             for from_ in range(stop):
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|                 yield from_
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| 
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|         # Test base functionality
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|         self.assertEqual(traverse_obj(_TEST_DATA, ('str',)), 'str',
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|                          msg='allow tuple path')
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|         self.assertEqual(traverse_obj(_TEST_DATA, ['str']), 'str',
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|                          msg='allow list path')
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|         self.assertEqual(traverse_obj(_TEST_DATA, (value for value in ("str",))), 'str',
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|                          msg='allow iterable path')
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|         self.assertEqual(traverse_obj(_TEST_DATA, 'str'), 'str',
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|                          msg='single items should be treated as a path')
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|         self.assertEqual(traverse_obj(_TEST_DATA, None), _TEST_DATA)
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|         self.assertEqual(traverse_obj(_TEST_DATA, 100), 100)
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|         self.assertEqual(traverse_obj(_TEST_DATA, 1.2), 1.2)
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| 
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|         # Test Ellipsis behavior
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|         self.assertCountEqual(traverse_obj(_TEST_DATA, Ellipsis),
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|                               (item for item in _TEST_DATA.values() if item not in (None, {})),
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|                               msg='`...` should give all non-discarded values')
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|         self.assertCountEqual(traverse_obj(_TEST_DATA, ('urls', 0, Ellipsis)), _TEST_DATA['urls'][0].values(),
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|                               msg='`...` selection for dicts should select all values')
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|         self.assertEqual(traverse_obj(_TEST_DATA, (Ellipsis, Ellipsis, 'url')),
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|                          ['https://www.example.com/0', 'https://www.example.com/1'],
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|                          msg='nested `...` queries should work')
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|         self.assertCountEqual(traverse_obj(_TEST_DATA, (Ellipsis, Ellipsis, 'index')), iter_range(4),
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|                               msg='`...` query result should be flattened')
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|         self.assertEqual(traverse_obj(iter(range(4)), Ellipsis), list(range(4)),
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|                          msg='`...` should accept iterables')
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| 
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|         # Test function as key
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|         self.assertEqual(traverse_obj(_TEST_DATA, lambda x, y: x == 'urls' and isinstance(y, list)),
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|                          [_TEST_DATA['urls']],
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|                          msg='function as query key should perform a filter based on (key, value)')
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|         self.assertCountEqual(traverse_obj(_TEST_DATA, lambda _, x: isinstance(x[0], str)), set(('str',)),
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|                               msg='exceptions in the query function should be caught')
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|         self.assertEqual(traverse_obj(iter(range(4)), lambda _, x: x % 2 == 0), [0, 2],
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|                          msg='function key should accept iterables')
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|         if __debug__:
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|             with self.assertRaises(Exception, msg='Wrong function signature should raise in debug'):
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|                 traverse_obj(_TEST_DATA, lambda a: Ellipsis)
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|             with self.assertRaises(Exception, msg='Wrong function signature should raise in debug'):
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|                 traverse_obj(_TEST_DATA, lambda a, b, c: Ellipsis)
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| 
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|         # Test set as key (transformation/type, like `expected_type`)
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|         self.assertEqual(traverse_obj(_TEST_DATA, (Ellipsis, T(str.upper), )), ['STR'],
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|                          msg='Function in set should be a transformation')
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|         self.assertEqual(traverse_obj(_TEST_DATA, ('fail', T(lambda _: 'const'))), 'const',
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|                          msg='Function in set should always be called')
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|         self.assertEqual(traverse_obj(_TEST_DATA, (Ellipsis, T(str))), ['str'],
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|                          msg='Type in set should be a type filter')
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|         self.assertMaybeCountEqual(traverse_obj(_TEST_DATA, (Ellipsis, T(str, int))), [100, 'str'],
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|                                    msg='Multiple types in set should be a type filter')
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|         self.assertEqual(traverse_obj(_TEST_DATA, T(dict)), _TEST_DATA,
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|                          msg='A single set should be wrapped into a path')
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|         self.assertEqual(traverse_obj(_TEST_DATA, (Ellipsis, T(str.upper))), ['STR'],
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|                          msg='Transformation function should not raise')
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|         self.assertMaybeCountEqual(traverse_obj(_TEST_DATA, (Ellipsis, T(str_or_none))),
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|                                    [item for item in map(str_or_none, _TEST_DATA.values()) if item is not None],
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|                                    msg='Function in set should be a transformation')
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|         if __debug__:
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|             with self.assertRaises(Exception, msg='Sets with length != 1 should raise in debug'):
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|                 traverse_obj(_TEST_DATA, set())
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|             with self.assertRaises(Exception, msg='Sets with length != 1 should raise in debug'):
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|                 traverse_obj(_TEST_DATA, set((str.upper, str)))
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| 
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|         # Test `slice` as a key
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|         _SLICE_DATA = [0, 1, 2, 3, 4]
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|         self.assertEqual(traverse_obj(_TEST_DATA, ('dict', slice(1))), None,
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|                          msg='slice on a dictionary should not throw')
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|         self.assertEqual(traverse_obj(_SLICE_DATA, slice(1)), _SLICE_DATA[:1],
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|                          msg='slice key should apply slice to sequence')
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|         self.assertEqual(traverse_obj(_SLICE_DATA, slice(1, 2)), _SLICE_DATA[1:2],
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|                          msg='slice key should apply slice to sequence')
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|         self.assertEqual(traverse_obj(_SLICE_DATA, slice(1, 4, 2)), _SLICE_DATA[1:4:2],
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|                          msg='slice key should apply slice to sequence')
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| 
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|         # Test alternative paths
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|         self.assertEqual(traverse_obj(_TEST_DATA, 'fail', 'str'), 'str',
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|                          msg='multiple `paths` should be treated as alternative paths')
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|         self.assertEqual(traverse_obj(_TEST_DATA, 'str', 100), 'str',
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|                          msg='alternatives should exit early')
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|         self.assertEqual(traverse_obj(_TEST_DATA, 'fail', 'fail'), None,
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|                          msg='alternatives should return `default` if exhausted')
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|         self.assertEqual(traverse_obj(_TEST_DATA, (Ellipsis, 'fail'), 100), 100,
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|                          msg='alternatives should track their own branching return')
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|         self.assertEqual(traverse_obj(_TEST_DATA, ('dict', Ellipsis), ('data', Ellipsis)), list(_TEST_DATA['data']),
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|                          msg='alternatives on empty objects should search further')
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| 
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|         # Test branch and path nesting
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|         self.assertEqual(traverse_obj(_TEST_DATA, ('urls', (3, 0), 'url')), ['https://www.example.com/0'],
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|                          msg='tuple as key should be treated as branches')
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|         self.assertEqual(traverse_obj(_TEST_DATA, ('urls', [3, 0], 'url')), ['https://www.example.com/0'],
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|                          msg='list as key should be treated as branches')
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|         self.assertEqual(traverse_obj(_TEST_DATA, ('urls', ((1, 'fail'), (0, 'url')))), ['https://www.example.com/0'],
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|                          msg='double nesting in path should be treated as paths')
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|         self.assertEqual(traverse_obj(['0', [1, 2]], [(0, 1), 0]), [1],
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|                          msg='do not fail early on branching')
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|         self.assertCountEqual(traverse_obj(_TEST_DATA, ('urls', ((1, ('fail', 'url')), (0, 'url')))),
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|                               ['https://www.example.com/0', 'https://www.example.com/1'],
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|                               msg='triple nesting in path should be treated as branches')
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|         self.assertEqual(traverse_obj(_TEST_DATA, ('urls', ('fail', (Ellipsis, 'url')))),
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|                          ['https://www.example.com/0', 'https://www.example.com/1'],
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|                          msg='ellipsis as branch path start gets flattened')
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| 
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|         # Test dictionary as key
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|         self.assertEqual(traverse_obj(_TEST_DATA, {0: 100, 1: 1.2}), {0: 100, 1: 1.2},
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|                          msg='dict key should result in a dict with the same keys')
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|         self.assertEqual(traverse_obj(_TEST_DATA, {0: ('urls', 0, 'url')}),
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|                          {0: 'https://www.example.com/0'},
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|                          msg='dict key should allow paths')
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|         self.assertEqual(traverse_obj(_TEST_DATA, {0: ('urls', (3, 0), 'url')}),
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|                          {0: ['https://www.example.com/0']},
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|                          msg='tuple in dict path should be treated as branches')
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|         self.assertEqual(traverse_obj(_TEST_DATA, {0: ('urls', ((1, 'fail'), (0, 'url')))}),
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|                          {0: ['https://www.example.com/0']},
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|                          msg='double nesting in dict path should be treated as paths')
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|         self.assertEqual(traverse_obj(_TEST_DATA, {0: ('urls', ((1, ('fail', 'url')), (0, 'url')))}),
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|                          {0: ['https://www.example.com/1', 'https://www.example.com/0']},
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|                          msg='triple nesting in dict path should be treated as branches')
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|         self.assertEqual(traverse_obj(_TEST_DATA, {0: 'fail'}), {},
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|                          msg='remove `None` values when top level dict key fails')
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|         self.assertEqual(traverse_obj(_TEST_DATA, {0: 'fail'}, default=Ellipsis), {0: Ellipsis},
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|                          msg='use `default` if key fails and `default`')
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|         self.assertEqual(traverse_obj(_TEST_DATA, {0: 'dict'}), {},
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|                          msg='remove empty values when dict key')
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|         self.assertEqual(traverse_obj(_TEST_DATA, {0: 'dict'}, default=Ellipsis), {0: Ellipsis},
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|                          msg='use `default` when dict key and a default')
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|         self.assertEqual(traverse_obj(_TEST_DATA, {0: {0: 'fail'}}), {},
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|                          msg='remove empty values when nested dict key fails')
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|         self.assertEqual(traverse_obj(None, {0: 'fail'}), {},
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|                          msg='default to dict if pruned')
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|         self.assertEqual(traverse_obj(None, {0: 'fail'}, default=Ellipsis), {0: Ellipsis},
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|                          msg='default to dict if pruned and default is given')
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|         self.assertEqual(traverse_obj(_TEST_DATA, {0: {0: 'fail'}}, default=Ellipsis), {0: {0: Ellipsis}},
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|                          msg='use nested `default` when nested dict key fails and `default`')
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|         self.assertEqual(traverse_obj(_TEST_DATA, {0: ('dict', Ellipsis)}), {},
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|                          msg='remove key if branch in dict key not successful')
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| 
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|         # Testing default parameter behavior
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|         _DEFAULT_DATA = {'None': None, 'int': 0, 'list': []}
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|         self.assertEqual(traverse_obj(_DEFAULT_DATA, 'fail'), None,
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|                          msg='default value should be `None`')
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|         self.assertEqual(traverse_obj(_DEFAULT_DATA, 'fail', 'fail', default=Ellipsis), Ellipsis,
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|                          msg='chained fails should result in default')
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|         self.assertEqual(traverse_obj(_DEFAULT_DATA, 'None', 'int'), 0,
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|                          msg='should not short cirquit on `None`')
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|         self.assertEqual(traverse_obj(_DEFAULT_DATA, 'fail', default=1), 1,
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|                          msg='invalid dict key should result in `default`')
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|         self.assertEqual(traverse_obj(_DEFAULT_DATA, 'None', default=1), 1,
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|                          msg='`None` is a deliberate sentinel and should become `default`')
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|         self.assertEqual(traverse_obj(_DEFAULT_DATA, ('list', 10)), None,
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|                          msg='`IndexError` should result in `default`')
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|         self.assertEqual(traverse_obj(_DEFAULT_DATA, (Ellipsis, 'fail'), default=1), 1,
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|                          msg='if branched but not successful return `default` if defined, not `[]`')
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|         self.assertEqual(traverse_obj(_DEFAULT_DATA, (Ellipsis, 'fail'), default=None), None,
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|                          msg='if branched but not successful return `default` even if `default` is `None`')
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|         self.assertEqual(traverse_obj(_DEFAULT_DATA, (Ellipsis, 'fail')), [],
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|                          msg='if branched but not successful return `[]`, not `default`')
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|         self.assertEqual(traverse_obj(_DEFAULT_DATA, ('list', Ellipsis)), [],
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|                          msg='if branched but object is empty return `[]`, not `default`')
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|         self.assertEqual(traverse_obj(None, Ellipsis), [],
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|                          msg='if branched but object is `None` return `[]`, not `default`')
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|         self.assertEqual(traverse_obj({0: None}, (0, Ellipsis)), [],
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|                          msg='if branched but state is `None` return `[]`, not `default`')
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| 
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|         branching_paths = [
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|             ('fail', Ellipsis),
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|             (Ellipsis, 'fail'),
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|             100 * ('fail',) + (Ellipsis,),
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|             (Ellipsis,) + 100 * ('fail',),
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|         ]
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|         for branching_path in branching_paths:
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|             self.assertEqual(traverse_obj({}, branching_path), [],
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|                              msg='if branched but state is `None`, return `[]` (not `default`)')
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|             self.assertEqual(traverse_obj({}, 'fail', branching_path), [],
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|                              msg='if branching in last alternative and previous did not match, return `[]` (not `default`)')
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|             self.assertEqual(traverse_obj({0: 'x'}, 0, branching_path), 'x',
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|                              msg='if branching in last alternative and previous did match, return single value')
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|             self.assertEqual(traverse_obj({0: 'x'}, branching_path, 0), 'x',
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|                              msg='if branching in first alternative and non-branching path does match, return single value')
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|             self.assertEqual(traverse_obj({}, branching_path, 'fail'), None,
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|                              msg='if branching in first alternative and non-branching path does not match, return `default`')
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| 
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|         # Testing expected_type behavior
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|         _EXPECTED_TYPE_DATA = {'str': 'str', 'int': 0}
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|         self.assertEqual(traverse_obj(_EXPECTED_TYPE_DATA, 'str', expected_type=str),
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|                          'str', msg='accept matching `expected_type` type')
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|         self.assertEqual(traverse_obj(_EXPECTED_TYPE_DATA, 'str', expected_type=int),
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|                          None, msg='reject non-matching `expected_type` type')
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|         self.assertEqual(traverse_obj(_EXPECTED_TYPE_DATA, 'int', expected_type=lambda x: str(x)),
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|                          '0', msg='transform type using type function')
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|         self.assertEqual(traverse_obj(_EXPECTED_TYPE_DATA, 'str', expected_type=lambda _: 1 / 0),
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|                          None, msg='wrap expected_type function in try_call')
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|         self.assertEqual(traverse_obj(_EXPECTED_TYPE_DATA, Ellipsis, expected_type=str),
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|                          ['str'], msg='eliminate items that expected_type fails on')
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|         self.assertEqual(traverse_obj(_TEST_DATA, {0: 100, 1: 1.2}, expected_type=int),
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|                          {0: 100}, msg='type as expected_type should filter dict values')
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|         self.assertEqual(traverse_obj(_TEST_DATA, {0: 100, 1: 1.2, 2: 'None'}, expected_type=str_or_none),
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|                          {0: '100', 1: '1.2'}, msg='function as expected_type should transform dict values')
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|         self.assertEqual(traverse_obj(_TEST_DATA, ({0: 1.2}, 0, set((int_or_none,))), expected_type=int),
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|                          1, msg='expected_type should not filter non-final dict values')
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|         self.assertEqual(traverse_obj(_TEST_DATA, {0: {0: 100, 1: 'str'}}, expected_type=int),
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|                          {0: {0: 100}}, msg='expected_type should transform deep dict values')
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|         self.assertEqual(traverse_obj(_TEST_DATA, [({0: '...'}, {0: '...'})], expected_type=type(Ellipsis)),
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|                          [{0: Ellipsis}, {0: Ellipsis}], msg='expected_type should transform branched dict values')
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|         self.assertEqual(traverse_obj({1: {3: 4}}, [(1, 2), 3], expected_type=int),
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|                          [4], msg='expected_type regression for type matching in tuple branching')
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|         self.assertEqual(traverse_obj(_TEST_DATA, ['data', Ellipsis], expected_type=int),
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|                          [], msg='expected_type regression for type matching in dict result')
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| 
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|         # Test get_all behavior
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|         _GET_ALL_DATA = {'key': [0, 1, 2]}
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|         self.assertEqual(traverse_obj(_GET_ALL_DATA, ('key', Ellipsis), get_all=False), 0,
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|                          msg='if not `get_all`, return only first matching value')
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|         self.assertEqual(traverse_obj(_GET_ALL_DATA, Ellipsis, get_all=False), [0, 1, 2],
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|                          msg='do not overflatten if not `get_all`')
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| 
 | |
|         # Test casesense behavior
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|         _CASESENSE_DATA = {
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|             'KeY': 'value0',
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|             0: {
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|                 'KeY': 'value1',
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|                 0: {'KeY': 'value2'},
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|             },
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|             # FULLWIDTH LATIN CAPITAL LETTER K
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|             '\uff2bey': 'value3',
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|         }
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|         self.assertEqual(traverse_obj(_CASESENSE_DATA, 'key'), None,
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|                          msg='dict keys should be case sensitive unless `casesense`')
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|         self.assertEqual(traverse_obj(_CASESENSE_DATA, 'keY',
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|                                       casesense=False), 'value0',
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|                          msg='allow non matching key case if `casesense`')
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|         self.assertEqual(traverse_obj(_CASESENSE_DATA, '\uff4bey',  # FULLWIDTH LATIN SMALL LETTER K
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|                                       casesense=False), 'value3',
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|                          msg='allow non matching Unicode key case if `casesense`')
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|         self.assertEqual(traverse_obj(_CASESENSE_DATA, (0, ('keY',)),
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|                                       casesense=False), ['value1'],
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|                          msg='allow non matching key case in branch if `casesense`')
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|         self.assertEqual(traverse_obj(_CASESENSE_DATA, (0, ((0, 'keY'),)),
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|                                       casesense=False), ['value2'],
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|                          msg='allow non matching key case in branch path if `casesense`')
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| 
 | |
|         # Test traverse_string behavior
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|         _TRAVERSE_STRING_DATA = {'str': 'str', 1.2: 1.2}
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|         self.assertEqual(traverse_obj(_TRAVERSE_STRING_DATA, ('str', 0)), None,
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|                          msg='do not traverse into string if not `traverse_string`')
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|         self.assertEqual(traverse_obj(_TRAVERSE_STRING_DATA, ('str', 0),
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|                                       _traverse_string=True), 's',
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|                          msg='traverse into string if `traverse_string`')
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|         self.assertEqual(traverse_obj(_TRAVERSE_STRING_DATA, (1.2, 1),
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|                                       _traverse_string=True), '.',
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|                          msg='traverse into converted data if `traverse_string`')
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|         self.assertEqual(traverse_obj(_TRAVERSE_STRING_DATA, ('str', Ellipsis),
 | |
|                                       _traverse_string=True), 'str',
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|                          msg='`...` should result in string (same value) if `traverse_string`')
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|         self.assertEqual(traverse_obj(_TRAVERSE_STRING_DATA, ('str', slice(0, None, 2)),
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|                                       _traverse_string=True), 'sr',
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|                          msg='`slice` should result in string if `traverse_string`')
 | |
|         self.assertEqual(traverse_obj(_TRAVERSE_STRING_DATA, ('str', lambda i, v: i or v == 's'),
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|                                       _traverse_string=True), 'str',
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|                          msg='function should result in string if `traverse_string`')
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|         self.assertEqual(traverse_obj(_TRAVERSE_STRING_DATA, ('str', (0, 2)),
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|                                       _traverse_string=True), ['s', 'r'],
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|                          msg='branching should result in list if `traverse_string`')
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|         self.assertEqual(traverse_obj({}, (0, Ellipsis), _traverse_string=True), [],
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|                          msg='branching should result in list if `traverse_string`')
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|         self.assertEqual(traverse_obj({}, (0, lambda x, y: True), _traverse_string=True), [],
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|                          msg='branching should result in list if `traverse_string`')
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|         self.assertEqual(traverse_obj({}, (0, slice(1)), _traverse_string=True), [],
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|                          msg='branching should result in list if `traverse_string`')
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| 
 | |
|         # Test re.Match as input obj
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|         mobj = re.match(r'^0(12)(?P<group>3)(4)?$', '0123')
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|         self.assertEqual(traverse_obj(mobj, Ellipsis), [x for x in mobj.groups() if x is not None],
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|                          msg='`...` on a `re.Match` should give its `groups()`')
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|         self.assertEqual(traverse_obj(mobj, lambda k, _: k in (0, 2)), ['0123', '3'],
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|                          msg='function on a `re.Match` should give groupno, value starting at 0')
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|         self.assertEqual(traverse_obj(mobj, 'group'), '3',
 | |
|                          msg='str key on a `re.Match` should give group with that name')
 | |
|         self.assertEqual(traverse_obj(mobj, 2), '3',
 | |
|                          msg='int key on a `re.Match` should give group with that name')
 | |
|         self.assertEqual(traverse_obj(mobj, 'gRoUp', casesense=False), '3',
 | |
|                          msg='str key on a `re.Match` should respect casesense')
 | |
|         self.assertEqual(traverse_obj(mobj, 'fail'), None,
 | |
|                          msg='failing str key on a `re.Match` should return `default`')
 | |
|         self.assertEqual(traverse_obj(mobj, 'gRoUpS', casesense=False), None,
 | |
|                          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')
 | |
| 
 | |
|         # Test xml.etree.ElementTree.Element as input obj
 | |
|         etree = compat_etree_fromstring('''<?xml version="1.0"?>
 | |
|         <data>
 | |
|             <country name="Liechtenstein">
 | |
|                 <rank>1</rank>
 | |
|                 <year>2008</year>
 | |
|                 <gdppc>141100</gdppc>
 | |
|                 <neighbor name="Austria" direction="E"/>
 | |
|                 <neighbor name="Switzerland" direction="W"/>
 | |
|             </country>
 | |
|             <country name="Singapore">
 | |
|                 <rank>4</rank>
 | |
|                 <year>2011</year>
 | |
|                 <gdppc>59900</gdppc>
 | |
|                 <neighbor name="Malaysia" direction="N"/>
 | |
|             </country>
 | |
|             <country name="Panama">
 | |
|                 <rank>68</rank>
 | |
|                 <year>2011</year>
 | |
|                 <gdppc>13600</gdppc>
 | |
|                 <neighbor name="Costa Rica" direction="W"/>
 | |
|                 <neighbor name="Colombia" direction="E"/>
 | |
|             </country>
 | |
|         </data>''')
 | |
|         self.assertEqual(traverse_obj(etree, ''), etree,
 | |
|                          msg='empty str key should return the element itself')
 | |
|         self.assertEqual(traverse_obj(etree, 'country'), list(etree),
 | |
|                          msg='str key should return all children with that tag name')
 | |
|         self.assertEqual(traverse_obj(etree, Ellipsis), list(etree),
 | |
|                          msg='`...` as key should return all children')
 | |
|         self.assertEqual(traverse_obj(etree, lambda _, x: x[0].text == '4'), [etree[1]],
 | |
|                          msg='function as key should get element as value')
 | |
|         self.assertEqual(traverse_obj(etree, lambda i, _: i == 1), [etree[1]],
 | |
|                          msg='function as key should get index as key')
 | |
|         self.assertEqual(traverse_obj(etree, 0), etree[0],
 | |
|                          msg='int key should return the nth child')
 | |
|         self.assertEqual(traverse_obj(etree, './/neighbor/@name'),
 | |
|                          ['Austria', 'Switzerland', 'Malaysia', 'Costa Rica', 'Colombia'],
 | |
|                          msg='`@<attribute>` at end of path should give that attribute')
 | |
|         self.assertEqual(traverse_obj(etree, '//neighbor/@fail'), [None, None, None, None, None],
 | |
|                          msg='`@<nonexistent>` at end of path should give `None`')
 | |
|         self.assertEqual(traverse_obj(etree, ('//neighbor/@', 2)), {'name': 'Malaysia', 'direction': 'N'},
 | |
|                          msg='`@` should give the full attribute dict')
 | |
|         self.assertEqual(traverse_obj(etree, '//year/text()'), ['2008', '2011', '2011'],
 | |
|                          msg='`text()` at end of path should give the inner text')
 | |
|         self.assertEqual(traverse_obj(etree, '//*[@direction]/@direction'), ['E', 'W', 'N', 'W', 'E'],
 | |
|                          msg='full python xpath features should be supported')
 | |
|         self.assertEqual(traverse_obj(etree, (0, '@name')), 'Liechtenstein',
 | |
|                          msg='special transformations should act on current element')
 | |
|         self.assertEqual(traverse_obj(etree, ('country', 0, Ellipsis, 'text()', T(int_or_none))), [1, 2008, 141100],
 | |
|                          msg='special transformations should act on current element')
 | |
| 
 | |
|     def test_traversal_unbranching(self):
 | |
|         self.assertEqual(traverse_obj(_TEST_DATA, [(100, 1.2), all]), [100, 1.2],
 | |
|                          msg='`all` should give all results as list')
 | |
|         self.assertEqual(traverse_obj(_TEST_DATA, [(100, 1.2), any]), 100,
 | |
|                          msg='`any` should give the first result')
 | |
|         self.assertEqual(traverse_obj(_TEST_DATA, [100, all]), [100],
 | |
|                          msg='`all` should give list if non branching')
 | |
|         self.assertEqual(traverse_obj(_TEST_DATA, [100, any]), 100,
 | |
|                          msg='`any` should give single item if non branching')
 | |
|         self.assertEqual(traverse_obj(_TEST_DATA, [('dict', 'None', 100), all]), [100],
 | |
|                          msg='`all` should filter `None` and empty dict')
 | |
|         self.assertEqual(traverse_obj(_TEST_DATA, [('dict', 'None', 100), any]), 100,
 | |
|                          msg='`any` should filter `None` and empty dict')
 | |
|         self.assertEqual(traverse_obj(_TEST_DATA, [{
 | |
|             'all': [('dict', 'None', 100, 1.2), all],
 | |
|             'any': [('dict', 'None', 100, 1.2), any],
 | |
|         }]), {'all': [100, 1.2], 'any': 100},
 | |
|             msg='`all`/`any` should apply to each dict path separately')
 | |
|         self.assertEqual(traverse_obj(_TEST_DATA, [{
 | |
|             'all': [('dict', 'None', 100, 1.2), all],
 | |
|             'any': [('dict', 'None', 100, 1.2), any],
 | |
|         }], get_all=False), {'all': [100, 1.2], 'any': 100},
 | |
|             msg='`all`/`any` should apply to dict regardless of `get_all`')
 | |
|         self.assertIs(traverse_obj(_TEST_DATA, [('dict', 'None', 100, 1.2), all, T(float)]), None,
 | |
|                       msg='`all` should reset branching status')
 | |
|         self.assertIs(traverse_obj(_TEST_DATA, [('dict', 'None', 100, 1.2), any, T(float)]), None,
 | |
|                       msg='`any` should reset branching status')
 | |
|         self.assertEqual(traverse_obj(_TEST_DATA, [('dict', 'None', 100, 1.2), all, Ellipsis, T(float)]), [1.2],
 | |
|                          msg='`all` should allow further branching')
 | |
|         self.assertEqual(traverse_obj(_TEST_DATA, [('dict', 'None', 'urls', 'data'), any, Ellipsis, 'index']), [0, 1],
 | |
|                          msg='`any` should allow further branching')
 | |
| 
 | |
|     def test_traversal_morsel(self):
 | |
|         values = {
 | |
|             'expires': 'a',
 | |
|             'path': 'b',
 | |
|             'comment': 'c',
 | |
|             'domain': 'd',
 | |
|             'max-age': 'e',
 | |
|             'secure': 'f',
 | |
|             'httponly': 'g',
 | |
|             'version': 'h',
 | |
|             'samesite': 'i',
 | |
|         }
 | |
|         # SameSite added in Py3.8, breaks .update for 3.5-3.7
 | |
|         if sys.version_info < (3, 8):
 | |
|             del values['samesite']
 | |
|         morsel = compat_http_cookies.Morsel()
 | |
|         morsel.set(str('item_key'), 'item_value', 'coded_value')
 | |
|         morsel.update(values)
 | |
|         values['key'] = str('item_key')
 | |
|         values['value'] = 'item_value'
 | |
|         values = dict((str(k), v) for k, v in values.items())
 | |
|         # make test pass even without ordered dict
 | |
|         value_set = set(values.values())
 | |
| 
 | |
|         for key, value in values.items():
 | |
|             self.assertEqual(traverse_obj(morsel, key), value,
 | |
|                              msg='Morsel should provide access to all values')
 | |
|         self.assertEqual(set(traverse_obj(morsel, Ellipsis)), value_set,
 | |
|                          msg='`...` should yield all values')
 | |
|         self.assertEqual(set(traverse_obj(morsel, lambda k, v: True)), value_set,
 | |
|                          msg='function key should yield all values')
 | |
|         self.assertIs(traverse_obj(morsel, [(None,), any]), morsel,
 | |
|                       msg='Morsel should not be implicitly changed to dict on usage')
 | |
| 
 | |
|     def test_get_first(self):
 | |
|         self.assertEqual(get_first([{'a': None}, {'a': 'spam'}], 'a'), 'spam')
 | |
| 
 | |
|     def test_dict_get(self):
 | |
|         FALSE_VALUES = {
 | |
|             'none': None,
 | |
|             'false': False,
 | |
|             'zero': 0,
 | |
|             'empty_string': '',
 | |
|             'empty_list': [],
 | |
|         }
 | |
|         d = FALSE_VALUES.copy()
 | |
|         d['a'] = 42
 | |
|         self.assertEqual(dict_get(d, 'a'), 42)
 | |
|         self.assertEqual(dict_get(d, 'b'), None)
 | |
|         self.assertEqual(dict_get(d, 'b', 42), 42)
 | |
|         self.assertEqual(dict_get(d, ('a', )), 42)
 | |
|         self.assertEqual(dict_get(d, ('b', 'a', )), 42)
 | |
|         self.assertEqual(dict_get(d, ('b', 'c', 'a', 'd', )), 42)
 | |
|         self.assertEqual(dict_get(d, ('b', 'c', )), None)
 | |
|         self.assertEqual(dict_get(d, ('b', 'c', ), 42), 42)
 | |
|         for key, false_value in FALSE_VALUES.items():
 | |
|             self.assertEqual(dict_get(d, ('b', 'c', key, )), None)
 | |
|             self.assertEqual(dict_get(d, ('b', 'c', key, ), skip_false_values=False), false_value)
 | |
| 
 | |
| 
 | |
| if __name__ == '__main__':
 | |
|     unittest.main()
 | 
