fix(empty-response): handle empty response in json deserialize (#67)

This commit fixes an issue where ApiHelper.json_deserialize returned the same empty payload (None or empty string) instead of None when the API response was missing.

The change ensures the utility behaves as expected and returns None for empty responses.

apimatic_core/utilities/api_helper.py

@@ -108,7 +108,7 @@ def json_deserialize(json, unboxing_function=None, as_dict=False):
                 JSON serialized string.
 
         """
-        if json is None:
+        if json is None or json.strip() == '':
             return None
 
         try:

setup.py

@@ -12,7 +12,7 @@
 
 setup(
     name='apimatic-core',
-    version='0.2.14',
+    version='0.2.15',
     description='A library that contains core logic and utilities for '
                 'consuming REST APIs using Python SDKs generated by APIMatic.',
     long_description=long_description,

tests/apimatic_core/response_handler_tests/test_response_handler.py

@@ -151,7 +151,10 @@ def test_simple_response_body_with_convertor(self, input_http_response, input_re
 
     @pytest.mark.parametrize('input_http_response, expected_response_body', [
         (Base.response(text=ApiHelper.json_serialize(Base.employee_model())),
-         ApiHelper.json_serialize(Base.employee_model()))
+         ApiHelper.json_serialize(Base.employee_model())),
+        (Base.response(), None),
+        (Base.response(text=''), None),
+        (Base.response(text='    '), None)
     ])
     def test_custom_type_response_body(self, input_http_response, expected_response_body):
         http_response = self.new_response_handler \
@@ -164,7 +167,10 @@ def test_custom_type_response_body(self, input_http_response, expected_response_
         (Base.response(text='[1, 2, 3, 4]'), '[1, 2, 3, 4]'),
         (Base.response(text='{"key1": "value1", "key2": "value2"}'), '{"key1": "value1", "key2": "value2"}'),
         (Base.response(text='{"key1": "value1", "key2": [1, 2, 3, {"key1": "value1", "key2": "value2"}]}'),
-         '{"key1": "value1", "key2": [1, 2, 3, {"key1": "value1", "key2": "value2"}]}')
+         '{"key1": "value1", "key2": [1, 2, 3, {"key1": "value1", "key2": "value2"}]}'),
+        (Base.response(), None),
+        (Base.response(text=''), None),
+        (Base.response(text='    '), None)
     ])
     def test_json_response_body(self, input_http_response, expected_response_body):
         http_response = self.new_response_handler \
@@ -267,7 +273,9 @@ def test_api_response_convertor(self, input_http_response, expected_response_bod
 
     @pytest.mark.parametrize('input_http_response, expected_response_body, expected_error_list', [
         (Base.response(text='{"key1": "value1", "key2": "value2", "errors": ["e1", "e2"]}'),
-         '{"key1": "value1", "key2": "value2", "errors": ["e1", "e2"]}', ['e1', 'e2'])
+         '{"key1": "value1", "key2": "value2", "errors": ["e1", "e2"]}', ['e1', 'e2']),
+        (Base.response(text=''), None, None),
+        (Base.response(text='    '), None, None)
     ])
     def test_api_response_with_errors(self, input_http_response, expected_response_body, expected_error_list):
         api_response = self.new_response_handler \

tests/apimatic_core/utility_tests/test_api_helper.py

@@ -152,6 +152,8 @@ def test_json_serialize(self, input_value, expected_value):
     @pytest.mark.parametrize('input_json_value, unboxing_function, as_dict, expected_value', [
         (None, None, False, None),
         ('true', None, False, 'true'),
+        ('', None, False, None),
+        ('    ', None, False, None),
         (ApiHelper.json_serialize(Base.employee_model()), Employee.from_dictionary, False,
          ApiHelper.json_serialize(Base.employee_model())),
         (ApiHelper.json_serialize([Base.employee_model(), Base.employee_model()]),
@@ -176,14 +178,6 @@ def test_json_deserialize(self, input_json_value, unboxing_function, as_dict, ex
         deserialized_value = ApiHelper.json_deserialize(input_json_value, unboxing_function, as_dict)
         assert ApiHelper.json_serialize(deserialized_value) == expected_value
 
-    @pytest.mark.parametrize('input_json', [
-        True
-    ])
-    def test_json_deserialize_value_error(self, input_json):
-        with pytest.raises(ValueError):
-            raise ValueError(input_json)
-            ApiHelper.json_deserialize(input_json)
-
     @pytest.mark.parametrize('input_url, input_file_value, expected_value', [
         ('C:\\PYTHON_GENERIC_LIB\\Tester\\models\\test_file.py', "test_file",
          'C:\\PYTHON_GENERIC_LIB\\Tester\\schemas\\TestFile.json'),
@@ -789,7 +783,9 @@ def test_get_content_type(self, input_value, output_value):
     @pytest.mark.parametrize('input_value, output_value', [
         ('{"method": "GET", "body": {}, "uploadCount": 0}', {'body': {}, 'method': 'GET', 'uploadCount': 0}),
         ('I am a string', 'I am a string'),
-        (None, None)
+        (None, None),
+        ('', None),
+        ('    ', None)
     ])
     def test_dynamic_deserialize(self, input_value, output_value):
         assert ApiHelper.dynamic_deserialize(input_value) == output_value