✅ Add tests for tutorial

tests/test_tutorial/test_strict_content_type/test_tutorial001.py

@@ -0,0 +1,43 @@
+import importlib
+
+import pytest
+from fastapi.testclient import TestClient
+
+
+@pytest.fixture(
+    name="client",
+    params=[
+        "tutorial001_py310",
+    ],
+)
+def get_client(request: pytest.FixtureRequest):
+    mod = importlib.import_module(f"docs_src.strict_content_type.{request.param}")
+    client = TestClient(mod.app)
+    return client
+
+
+def test_lax_post_without_content_type_is_parsed_as_json(client: TestClient):
+    response = client.post(
+        "/items/",
+        content='{"name": "Foo", "price": 50.5}',
+    )
+    assert response.status_code == 200, response.text
+    assert response.json() == {"name": "Foo", "price": 50.5}
+
+
+def test_lax_post_with_json_content_type(client: TestClient):
+    response = client.post(
+        "/items/",
+        json={"name": "Foo", "price": 50.5},
+    )
+    assert response.status_code == 200, response.text
+    assert response.json() == {"name": "Foo", "price": 50.5}
+
+
+def test_lax_post_with_text_plain_is_still_rejected(client: TestClient):
+    response = client.post(
+        "/items/",
+        content='{"name": "Foo", "price": 50.5}',
+        headers={"Content-Type": "text/plain"},
+    )
+    assert response.status_code == 422, response.text