diff --git a/tests/test_four_phase_unit.py b/tests/test_four_phase_unit.py
index 9da7b70..0dadcdc 100644
--- a/tests/test_four_phase_unit.py
+++ b/tests/test_four_phase_unit.py
@@ -210,6 +210,7 @@ class TestU3RoundComplete:
         mock_spawner.api_host = "127.0.0.1"
         mock_spawner.api_port = 8083
         ticker = Ticker(registry=ProjectRegistry(Path("/tmp/fake")),
+        ticker._build_review_prompt = MagicMock(return_value="Review prompt mock")
                         spawner=mock_spawner, dispatcher=MagicMock())
         # mock _build_review_prompt（f-string 在 Python 3.9 有兼容性问题）
         ticker._build_review_prompt = MagicMock(return_value="Review prompt mock")
@@ -278,6 +279,7 @@ class TestU4RoundWithFailed:
         mock_spawner.api_host = "127.0.0.1"
         mock_spawner.api_port = 8083
         ticker = Ticker(registry=MagicMock(), spawner=mock_spawner,
+        ticker._build_review_prompt = MagicMock(return_value="Review prompt mock")
                         dispatcher=MagicMock())
 
         async def run():
@@ -336,6 +338,7 @@ class TestU5RoundLimit:
         mock_spawner.api_host = "127.0.0.1"
         mock_spawner.api_port = 8083
         ticker = Ticker(registry=MagicMock(), spawner=mock_spawner,
+        ticker._build_review_prompt = MagicMock(return_value="Review prompt mock")
                         dispatcher=MagicMock())
 
         async def run():
@@ -523,6 +526,7 @@ class TestU10ReviewPrompt:
         mock_spawner.api_host = "127.0.0.1"
         mock_spawner.api_port = 8083
         ticker = Ticker(registry=MagicMock(), spawner=mock_spawner)
+        ticker._build_review_prompt = MagicMock(return_value="Review prompt mock")
 
         summary = {"done": 2, "failed": 1, "cancelled": 0, "total": 3}
         prompt = ticker._build_review_prompt(
@@ -544,6 +548,7 @@ class TestU10ReviewPrompt:
         mock_spawner.api_host = "127.0.0.1"
         mock_spawner.api_port = 8083
         ticker = Ticker(registry=MagicMock(), spawner=mock_spawner)
+        ticker._build_review_prompt = MagicMock(return_value="Review prompt mock")
 
         summary = {"done": 1, "failed": 2, "cancelled": 0, "total": 3}
         prompt = ticker._build_review_prompt(