Merge pull request #1260 from c4ffein/test-response-data

DRF-style data property for responses in tests

docs/docs/guides/testing.md

@@ -33,6 +33,11 @@ class HelloTest(TestCase):
         self.assertEqual(response.json(), {"msg": "Hello World"})
 ```
 
+It is also possible to access the deserialized data using the `data` property:
+```python
+    self.assertEqual(response.data, {"msg": "Hello World"})
+```
+
 Arbitrary attributes can be added to the request object by passing keyword arguments to the client request methods:
 ```python
 class HelloTest(TestCase):

ninja/testing/client.py

@@ -189,10 +189,17 @@ def __init__(self, http_response: Union[HttpResponse, StreamingHttpResponse]):
             self.content = b"".join(http_response.streaming_content)  # type: ignore
         else:
             self.content = http_response.content  # type: ignore[union-attr]
+        self._data = None
 
     def json(self) -> Any:
         return json_loads(self.content)
 
+    @property
+    def data(self) -> Any:
+        if self._data is None:  # Recomputes if json() is None but cheap then
+            self._data = self.json()
+        return self._data
+
     def __getitem__(self, key: str) -> Any:
         return self._response[key]
 

tests/test_response.py

@@ -117,6 +117,7 @@ def test_responses(path, expected_response):
     response = client.get(path)
     assert response.status_code == 200, response.content
     assert response.json() == expected_response
+    assert response.data == response.data == expected_response  # Ensures cache works
 
 
 def test_validates():