Added tests for docs code examples

tests/test_tutorial/test_handling_errors/test_tutorial007.py

@@ -0,0 +1,27 @@
+from fastapi.testclient import TestClient
+
+from docs_src.handling_errors.tutorial007 import app
+
+client = TestClient(app)
+
+
+def test_unauthenticated():
+    response = client.get("/secrets")
+    assert response.status_code == 401, response.text
+    assert response.json() == {
+        "detail": "Access denied. Check your credentials or permissions."
+    }
+
+
+def test_unauthorized():
+    response = client.get("/secrets", params={"auth_user_id": 1})
+    assert response.status_code == 403, response.text
+    assert response.json() == {
+        "detail": "Access denied. Check your credentials or permissions."
+    }
+
+
+def test_success():
+    response = client.get("/secrets", params={"auth_user_id": 0})
+    assert response.status_code == 200, response.text
+    assert response.json() == {"data": "Secret information"}

tests/test_tutorial/test_handling_errors/test_tutorial008.py

@@ -0,0 +1,59 @@
+from pathlib import Path
+from unittest.mock import patch
+
+from fastapi.testclient import TestClient
+
+from docs_src.handling_errors import tutorial008
+from docs_src.handling_errors.tutorial008 import app
+
+client = TestClient(app)
+
+
+def test_unsupported_file_type(tmp_path: Path):
+    file = tmp_path / "test.txt"
+    file.write_text("<file content>")
+    with open(file, "+rb") as fp:
+        response = client.post(
+            "/upload",
+            files={"file": ("test.txt", fp, "text/plain")},
+        )
+    assert response.status_code == 415, response.text
+    assert response.json() == {
+        "error": "Unsupported file type",
+        "hint": "Need help? Contact support@example.com",
+    }
+
+
+def test_file_too_large(tmp_path: Path):
+    file = tmp_path / "test.pdf"
+    file.write_text("<file content>" * 100)  # ~1.37 kB
+    with patch.object(
+        tutorial008,
+        "MAX_FILE_SIZE_MB",
+        new=0.001,  # MAX_FILE_SIZE_MB = 1 kB
+    ):
+        with open(file, "+rb") as fp:
+            response = client.post(
+                "/upload",
+                files={"file": ("test.pdf", fp, "application/pdf")},
+            )
+    assert response.status_code == 413, response.text
+    assert response.json() == {
+        "error": "The uploaded file is too large.",
+        "hint": "Need help? Contact support@example.com",
+    }
+
+
+def test_success(tmp_path: Path):
+    file = tmp_path / "test.pdf"
+    file.write_text("<file content>")
+    with open(file, "+rb") as fp:
+        response = client.post(
+            "/upload",
+            files={"file": ("test.pdf", fp, "application/pdf")},
+        )
+    assert response.status_code == 200, response.text
+    assert response.json() == {
+        "filename": "test.pdf",
+        "message": "File uploaded successfully!",
+    }