def test_merge_with_overwrite(self):
a, b = {'a': {'b': 0}}, {'a': {'b': 1}}
self.assertEqual(dmerge(a, b, overwrite=['a']), {'a': {'b': 1}})
a, b = {'a': {'b': 0, 'c': 2}}, {'a': {'b': 1}}
self.assertEqual(dmerge(a, b, overwrite=['a']), {'a': {'b': 1}})
a, b = {'a': {'b': {'x': 3, 'y': 4}, 'c': 2}}, {'a': {'b': {}, 'd': 5}}
self.assertEqual(dmerge(a, b, overwrite=['b']), {'a': {'b': {}, 'c': 2, 'd': 5}})
a, b = {'a': {'b': {'x': 3, 'y': 4}, 'c': 2}}, {'a': {'b': {'z': 9}, 'd': 5}}
self.assertEqual(dmerge(a, b, overwrite=['b']), {'a': {'b': {'z': 9}, 'c': 2, 'd': 5}})
def test_only_supports_dictionaries(self):
items = [{}, [], (), 0, 0.0, '', False]
tests = product(items, repeat=2)
for data in tests:
if not data == ({}, {}):
data = map(deepcopy, data)
self.assertRaises(TypeError, dmerge, *data)
try:
dmerge({}, {})
except TypeError:
self.fail('AssertionError from dmerge() for valid args.')
def test_merge(self):
a, b = {'a': {}}, {'b': {}}
self.assertEqual(dmerge(a, b), {'a': {}, 'b': {}})
a, b = {'a': {'b': {}}}, {'a': {'c': {}}}
self.assertEqual(dmerge(a, b), {'a': {'b': {}, 'c': {}}})
a, b = {'a': {'b': 0}}, {'a': {'b': 1}}
self.assertEqual(dmerge(a, b), {'a': {'b': 1}})
a, b = {'a': {'b': 0}}, {'a': {'b': 1, 'c': 2}}
self.assertEqual(dmerge(a, b), {'a': {'b': 1, 'c': 2}})
a, b = {'a': {'b': 0, 'c': 2}}, {'a': {'b': 1}}
self.assertEqual(dmerge(a, b), {'a': {'b': 1, 'c': 2}})
a, b = {'a': {'b': {'x': 3, 'y': 4}, 'c': 2}}, {'a': {'b': {}, 'd': 5}}
self.assertEqual(dmerge(a, b), {'a': {'b': {'x': 3, 'y': 4}, 'c': 2, 'd': 5}})
a, b = {'a': {'b': {'x': 3, 'y': 4}, 'c': 2}}, {'a': {'b': {'z': 9}, 'd': 5}}
self.assertEqual(dmerge(a, b), {'a': {'b': {'x': 3, 'y': 4, 'z': 9}, 'c': 2, 'd': 5}})
def test_flat_dictionary_with_non_empty_values(self):
items = [{'a': 0}, {'a': [0]}, {'a': (0,)}, {'a': '0'}, {'a': False}]
tests = [((a, b), b) for a, b in product(items, repeat=2)]
for data, expected in tests:
data = map(deepcopy, data)
self.assertEqual(dmerge(*data), expected)
def test_flat_dictionary_with_empty_merge(self):
self.assertEqual(dmerge({'a': 0}, {}), {'a': 0})
self.assertNotEqual(dmerge({'a': 0}, {}), {})
