Implement user-facing API

tests/test_fastapi_users.py

@@ -0,0 +1,54 @@
+import pytest
+from fastapi import Depends, FastAPI
+from starlette import status
+from starlette.testclient import TestClient
+
+from fastapi_users import FastAPIUsers
+from fastapi_users.models import BaseUser, BaseUserDB
+
+
+@pytest.fixture
+def fastapi_users(mock_user_db, mock_authentication) -> FastAPIUsers:
+    class User(BaseUser):
+        pass
+
+    return FastAPIUsers(mock_user_db, mock_authentication, User)
+
+
+@pytest.fixture
+def test_app_client(fastapi_users: FastAPIUsers) -> TestClient:
+    app = FastAPI()
+    app.include_router(fastapi_users.router)
+
+    @app.get("/authenticated")
+    def authenticated(user=Depends(fastapi_users.get_current_user)):
+        return user
+
+    return TestClient(app)
+
+
+class TestRouter:
+    def test_routes_exist(self, test_app_client: TestClient):
+        response = test_app_client.post("/register")
+        assert response.status_code != status.HTTP_404_NOT_FOUND
+
+        response = test_app_client.post("/login")
+        assert response.status_code != status.HTTP_404_NOT_FOUND
+
+
+class TestGetCurrentUser:
+    def test_missing_token(self, test_app_client: TestClient):
+        response = test_app_client.get("/authenticated")
+        assert response.status_code == status.HTTP_401_UNAUTHORIZED
+
+    def test_invalid_token(self, test_app_client: TestClient):
+        response = test_app_client.get(
+            "/authenticated", headers={"Authorization": "Bearer foo"}
+        )
+        assert response.status_code == status.HTTP_401_UNAUTHORIZED
+
+    def test_valid_token(self, test_app_client: TestClient, user: BaseUserDB):
+        response = test_app_client.get(
+            "/authenticated", headers={"Authorization": f"Bearer {user.id}"}
+        )
+        assert response.status_code == status.HTTP_200_OK