feat: add unified contest pool and realtime game modes

backend/contest/test_realtime_api.py

@@ -203,3 +203,54 @@ def test_challenge_api_已使用联机码返回具体原因(realtime_api_setup):
 
     assert response.status_code == 400
     assert response.json()["error"]["message"] == "联机码已失效或已被使用"
+
+
+@pytest.mark.django_db
+def test_challenge_api_24点竞速完整闭环(realtime_api_setup):
+    contest, first_client, second_client = realtime_api_setup
+    created = first_client.post(
+        f"/api/v1/contests/{contest.slug}/challenges/",
+        {"game_kind": "twenty_four"},
+        content_type="application/json",
+    )
+    joined = second_client.post(
+        "/api/v1/contests/challenges/join/",
+        {"challenge_code": created.json()["challenge_code"]},
+        content_type="application/json",
+    )
+
+    assert joined.status_code == 200
+    assert joined.json()["game_kind"] == "twenty_four"
+    assert created.json()["attempt"] is None
+    first_state = first_client.get(
+        f"/api/v1/contests/matches/{joined.json()['match_id']}/"
+    ).json()
+    assert first_state["attempt"]["puzzle"] == joined.json()["attempt"]["puzzle"]
+
+    solutions = {
+        (2, 3, 4, 9): "(2/3)*4*9",
+        (3, 5, 7, 13): "(7+5*13)/3",
+        (4, 7, 8, 8): "8*(4+7-8)",
+    }
+    expression = solutions[
+        tuple(sorted(joined.json()["attempt"]["puzzle"]["numbers"]))
+    ]
+    first_submit = first_client.post(
+        f"/api/v1/contests/games/attempts/{first_state['attempt']['attempt_id']}/submit/",
+        {"expression": expression},
+        content_type="application/json",
+        HTTP_IDEMPOTENCY_KEY="api-game-first",
+    )
+    second_submit = second_client.post(
+        f"/api/v1/contests/games/attempts/{joined.json()['attempt']['attempt_id']}/submit/",
+        {"expression": expression},
+        content_type="application/json",
+        HTTP_IDEMPOTENCY_KEY="api-game-second",
+    )
+
+    assert first_submit.status_code == 200
+    assert first_submit.json()["status"] == "active"
+    assert first_submit.json()["attempt"]["status"] == "completed"
+    assert second_submit.status_code == 200
+    assert second_submit.json()["status"] == "completed"
+    assert second_submit.json()["result"]["winner"] in {"self", "opponent", "draw"}