def validate_request_keys(self, request_body):
is_valid = True
error_msg = "The following errors were found:\n"
# Get keys required/supported
required_keys = self._validation_ruleset.get_keys_of_required_inputs()
if 'language' in request_body:
language = request_body['language']
rule = self._validation_ruleset.get_validation_rule_for_key('language')
validation_result = validate('language', language, rule)
if validation_result.is_valid:
required_keys += self._validation_ruleset.get_keys_for_language(request_body['language'])
else:
is_valid = False
error_msg += f'Unsupported language "{language}" provided\n'
supported_keys = required_keys + self._validation_ruleset.get_keys_of_optional_inputs()
# Find any discrepancies
missing_keys = get_set_difference(required_keys, request_body)
unsupported_keys = get_set_difference(request_body, supported_keys)
# Group the results together
for key in missing_keys:
is_valid = False
error_msg += f'Missing required input "{key}"\n'
for key in unsupported_keys:
is_valid = False
error_msg += f'Unsupported input "{key}" provided\n'
result = ValidationResult(
is_valid,
"All input keys provided are valid\n" if is_valid else error_msg,
None
)
return result
def test_get_set_difference_finds_simple_missing_key():
# Arrange
lst = ['a', 'b', 'c']
dictionary = {'a': 1, 'c': 3}
# Act
result = get_set_difference(lst, dictionary)
# Assert
assert result == ['b']
def test_get_set_difference_finds_simple_missing_item():
# Arrange
dictionary = {'a': 1, 'b': 2, 'c': 3}
lst = ['a', 'c']
# Act
result = get_set_difference(dictionary, lst)
# Assert
assert result == ['b']
def test_get_set_difference_returns_empty_array_when_keys_subset_of_items():
# Arrange
dictionary = {'a': 1, 'c': 3}
lst = ['a', 'b', 'c']
# Act
result = get_set_difference(dictionary, lst)
# Assert
assert result == []
def test_get_set_difference_returns_empty_array_when_items_subset_of_keys():
# Arrange
lst = ['a', 'c']
dictionary = {'a': 1, 'b': 2, 'c': 3}
# Act
result = get_set_difference(lst, dictionary)
# Assert
assert result == []