Add tests for `docs_src.custom_response.tutorial002` and `docs_src.custom_response.tutorial003`

tests/test_tutorial/test_custom_response/test_tutorial004.py → tests/test_tutorial/test_custom_response/test_tutorial002_tutorial003_tutorial004.py

@@ -1,8 +1,25 @@
+import importlib
+
+import pytest
 from fastapi.testclient import TestClient
 
-from docs_src.custom_response.tutorial004_py39 import app
 
-client = TestClient(app)
+@pytest.fixture(
+    name="mod_name",
+    params=[
+        pytest.param("tutorial002_py39"),
+        pytest.param("tutorial003_py39"),
+        pytest.param("tutorial004_py39"),
+    ],
+)
+def get_mod_name(request: pytest.FixtureRequest) -> str:
+    return request.param
+
+
+@pytest.fixture(name="client")
+def get_client(mod_name: str) -> TestClient:
+    mod = importlib.import_module(f"docs_src.custom_response.{mod_name}")
+    return TestClient(mod.app)
 
 
 html_contents = """
@@ -17,13 +34,18 @@ html_contents = """
     """
 
 
-def test_get_custom_response():
+def test_get_custom_response(client: TestClient):
     response = client.get("/items/")
     assert response.status_code == 200, response.text
     assert response.text == html_contents
 
 
-def test_openapi_schema():
+def test_openapi_schema(client: TestClient, mod_name: str):
+    if mod_name.startswith("tutorial003"):
+        response_content = {"application/json": {"schema": {}}}
+    else:
+        response_content = {"text/html": {"schema": {"type": "string"}}}
+
     response = client.get("/openapi.json")
     assert response.status_code == 200, response.text
     assert response.json() == {
@@ -35,7 +57,7 @@ def test_openapi_schema():
                     "responses": {
                         "200": {
                             "description": "Successful Response",
-                            "content": {"text/html": {"schema": {"type": "string"}}},
+                            "content": response_content,
                         }
                     },
                     "summary": "Read Items",