def test_list_difference_delta_raises_error_if_prev_value_changed(self):
t1 = {
1: 1,
2: 2,
3: 3,
4: {
"a": "hello",
"b": [1, 2, 'wrong', 'to_be_removed2']
}
}
t2 = {1: 1, 2: 2, 3: 3, 4: {"a": "hello", "b": [1, 2]}}
diff = {
'iterable_item_removed': {
"root[4]['b'][2]": "to_be_removed",
"root[4]['b'][3]": 'to_be_removed2'
}
}
expected_msg = VERIFICATION_MSG.format("root[4]['b'][2]",
'to_be_removed', 'wrong',
VERIFY_SYMMETRY_MSG)
delta = Delta(diff, verify_symmetry=True, raise_errors=True)
with pytest.raises(ValueError) as excinfo:
delta + t1
assert expected_msg == str(excinfo.value)
delta2 = Delta(diff, verify_symmetry=False, raise_errors=True)
assert t1 + delta2 == t2
def test_list_difference_delta_raises_error_if_prev_value_does_not_match(
self):
t1 = [1, 2, 6]
t2 = [1, 3, 2, 5]
diff = {
'values_changed': {
"root[2]": {
'new_value': 2,
'old_value': 5
},
"root[1]": {
'new_value': 3,
'old_value': 2
}
},
'iterable_item_added': {
"root[3]": 5
}
}
expected_msg = VERIFICATION_MSG.format('root[2]', 5, 6,
VERIFY_SYMMETRY_MSG)
delta = Delta(diff, verify_symmetry=True, raise_errors=True)
with pytest.raises(ValueError) as excinfo:
delta + t1
assert expected_msg == str(excinfo.value)
delta2 = Delta(diff, verify_symmetry=False)
assert delta2 + t1 == t2
def test_apply_delta_to_incompatible_object7_verify_symmetry(self, mock_logger):
t1 = [1]
t2 = [2]
t3 = [3]
diff = DeepDiff(t1, t2)
delta2 = Delta(diff, raise_errors=False, verify_symmetry=True)
t4 = delta2 + t3
assert [2] == t4
expected_msg = VERIFICATION_MSG.format('root[0]', 1, 3, VERIFY_SYMMETRY_MSG)
mock_logger.assert_called_once_with(expected_msg)
def test_verify_symmetry_and_get_elem_and_compare_to_old_value(self):
"""
Test a specific case where path was a list of elements (in the form of tuples)
and the item could not be found.
"""
delta = Delta({}, verify_symmetry=True, raise_errors=True, log_errors=False)
with pytest.raises(DeltaError) as excinfo:
delta._get_elem_and_compare_to_old_value(
obj={},
path_for_err_reporting=(('root', GETATTR),),
expected_old_value='Expected Value',
action=GET,
elem='key')
assert VERIFICATION_MSG.format('root', 'Expected Value', 'not found', "'key'") == str(excinfo.value)
def test_list_difference_delta_if_item_is_already_removed(self, mock_logger):
t1 = [1, 2, 'to_be_removed']
t2 = [1, 2]
diff = {
'iterable_item_removed': {
"root[2]": "to_be_removed",
"root[3]": 'to_be_removed2'
}
}
expected_msg = VERIFICATION_MSG.format("root[3]", 'to_be_removed2', not_found, 'list index out of range')
delta = Delta(diff, verify_symmetry=True, raise_errors=True)
with pytest.raises(DeltaError) as excinfo:
delta + t1
assert expected_msg == str(excinfo.value)
delta2 = Delta(diff, verify_symmetry=False, raise_errors=False)
assert t1 + delta2 == t2
expected_msg = UNABLE_TO_GET_PATH_MSG.format('root[3]')
mock_logger.assert_called_with(expected_msg)