Mock out requests in TestRequest unit tests (#1794)

* Use mocks to not rely on external api

* Mock all requests

* Fix order of import statements

test/test_utils.py

@@ -258,23 +258,38 @@ async def client():
             yield
 
 
+def make_mock_response(return_value):
+    response = mock.MagicMock(name="mock_response")
+    response.status_code = 201
+    response.json.return_value = return_value
+    return response
+
+
+@mock.patch("gradio.utils.client.send")
 class TestRequest:
     @pytest.mark.asyncio
-    async def test_get(self):
+    async def test_get(self, mock_send):
+
+        mock_send.return_value = make_mock_response({"Host": "headers.jsontest.com"})
+
         client_response: Request = await Request(
             method=Request.Method.GET,
-            url="http://headers.jsontest.com/",
+            url="very_real_url.com",
         )
         validated_data = client_response.get_validated_data()
         assert client_response.is_valid() is True
         assert validated_data["Host"] == "headers.jsontest.com"
 
     @pytest.mark.asyncio
-    async def test_post(self):
+    async def test_post(self, mock_send):
+
+        payload = {"name": "morpheus", "job": "leader"}
+        mock_send.return_value = make_mock_response(payload)
+
         client_response: Request = await Request(
             method=Request.Method.POST,
-            url="https://reqres.in/api/users",
-            json={"name": "morpheus", "job": "leader"},
+            url="very_real_url.com",
+            json=payload,
         )
         validated_data = client_response.get_validated_data()
         assert client_response.status == 201
@@ -282,7 +297,16 @@ class TestRequest:
         assert validated_data["name"] == "morpheus"
 
     @pytest.mark.asyncio
-    async def test_validate_with_model(self):
+    async def test_validate_with_model(self, mock_send):
+        mock_send.return_value = make_mock_response(
+            {
+                "name": "morpheus",
+                "id": "1",
+                "job": "leader",
+                "createdAt": "2",
+            }
+        )
+
         class TestModel(BaseModel):
             name: str
             job: str
@@ -291,22 +315,25 @@ class TestRequest:
 
         client_response: Request = await Request(
             method=Request.Method.POST,
-            url="https://reqres.in/api/users",
+            url="very_real_url.com",
             json={"name": "morpheus", "job": "leader"},
             validation_model=TestModel,
         )
         assert isinstance(client_response.get_validated_data(), TestModel)
 
     @pytest.mark.asyncio
-    async def test_validate_and_fail_with_model(self):
+    async def test_validate_and_fail_with_model(self, mock_send):
         class TestModel(BaseModel):
             name: Literal[str] = "John"
             job: str
 
+        payload = {"name": "morpheus", "job": "leader"}
+        mock_send.return_value = make_mock_response(payload)
+
         client_response: Request = await Request(
             method=Request.Method.POST,
-            url="https://reqres.in/api/users",
-            json={"name": "morpheus", "job": "leader"},
+            url="very_real_url.com",
+            json=payload,
             validation_model=TestModel,
         )
         with pytest.raises(Exception):
@@ -316,7 +343,7 @@ class TestRequest:
 
     @mock.patch("gradio.utils.Request._validate_response_data")
     @pytest.mark.asyncio
-    async def test_exception_type(self, validate_response_data):
+    async def test_exception_type(self, validate_response_data, mock_send):
         class ResponseValidationException(Exception):
             message = "Response object is not valid."
 
@@ -324,13 +351,15 @@ class TestRequest:
 
         client_response: Request = await Request(
             method=Request.Method.GET,
-            url="https://reqres.in/api/users",
+            url="very_real_url.com",
             exception_type=ResponseValidationException,
         )
         assert isinstance(client_response.exception, ResponseValidationException)
 
     @pytest.mark.asyncio
-    async def test_validate_with_function(self):
+    async def test_validate_with_function(self, mock_send):
+        mock_send.return_value = make_mock_response({"name": "morpheus", "id": 1})
+
         def has_name(response):
             if response["name"] is not None:
                 return response
@@ -338,7 +367,7 @@ class TestRequest:
 
         client_response: Request = await Request(
             method=Request.Method.POST,
-            url="https://reqres.in/api/users",
+            url="very_real_url.com",
             json={"name": "morpheus", "job": "leader"},
             validation_function=has_name,
         )
@@ -348,16 +377,18 @@ class TestRequest:
         assert client_response.exception is None
 
     @pytest.mark.asyncio
-    async def test_validate_and_fail_with_function(self):
+    async def test_validate_and_fail_with_function(self, mock_send):
         def has_name(response):
             if response["name"] is not None:
                 if response["name"] == "Alex":
                     return response
             raise Exception
 
+        mock_send.return_value = make_mock_response({"name": "morpheus"})
+
         client_response: Request = await Request(
             method=Request.Method.POST,
-            url="https://reqres.in/api/users",
+            url="very_real_url.com",
             json={"name": "morpheus", "job": "leader"},
             validation_function=has_name,
         )