Initiate OAuth2 tests

Author: ArtyomVancyan

tests/test_oauth2.py

@@ -0,0 +1,14 @@
+import pytest
+from httpx import AsyncClient
+
+
+@pytest.mark.anyio
+async def test_oauth2_basic_flow(get_app):
+    async with AsyncClient(app=get_app(), base_url="http://test") as client:
+        response = await client.get("/user")
+        assert response.status_code == 403
+        response = await client.get("/oauth2/test/auth")
+        response = await client.get(response.headers.get("location"))
+        await client.get(response.headers.get("location"))
+        response = await client.get("/user")
+        assert response.status_code == 200