diff --git a/tests/metagpt/roles/di/test_data_analyst.py b/tests/metagpt/roles/di/test_data_analyst.py
index 0f285ecd7..f2c3e3797 100644
--- a/tests/metagpt/roles/di/test_data_analyst.py
+++ b/tests/metagpt/roles/di/test_data_analyst.py
@@ -1,21 +1,143 @@
+from unittest.mock import AsyncMock, MagicMock, patch
+
 import pytest
 
-from metagpt.const import TEST_DATA_PATH
+from metagpt.actions.di.execute_nb_code import ExecuteNbCode
+from metagpt.actions.di.write_analysis_code import WriteAnalysisCode
 from metagpt.roles.di.data_analyst import DataAnalyst
+from metagpt.roles.di.role_zero import RoleZero
+from metagpt.strategy.task_type import TaskType
+from metagpt.tools.tool_recommend import BM25ToolRecommender
+
+
+@pytest.fixture
+def data_analyst():
+    analyst = DataAnalyst()
+    analyst.planner = MagicMock()
+    analyst.planner.plan = MagicMock()
+    analyst.rc = MagicMock()
+    analyst.rc.working_memory = MagicMock()
+    analyst.rc.memory = MagicMock()
+    return analyst
+
+
+@pytest.fixture
+def mock_execute_code():
+    with patch('metagpt.actions.di.execute_nb_code.ExecuteNbCode') as mock:
+        instance = mock.return_value
+        instance.init_code = AsyncMock()
+        instance.run = AsyncMock()
+        yield instance
+
+
+@pytest.fixture
+def mock_write_code():
+    with patch('metagpt.actions.di.write_analysis_code.WriteAnalysisCode') as mock:
+        instance = mock.return_value
+        instance.run = AsyncMock()
+        yield instance
+
+
+class TestDataAnalyst:
+    def test_init(self):
+        analyst = DataAnalyst()
+        assert analyst.name == "David"
+        assert analyst.profile == "DataAnalyst"
+        assert "Browser" in analyst.tools
+        assert isinstance(analyst.write_code, WriteAnalysisCode)
+        assert isinstance(analyst.execute_code, ExecuteNbCode)
+
+    def test_set_custom_tool(self):
+        # 测试有自定义工具的情况
+        analyst = DataAnalyst()
+        analyst.custom_tools = ["web scraping", "Terminal"]
+        analyst.custom_tool_recommender = None  # 确保初始值为None
+        analyst.set_custom_tool()
+        assert isinstance(analyst.custom_tool_recommender, BM25ToolRecommender)
+
+        # 测试没有自定义工具的情况
+        analyst = DataAnalyst()
+        analyst.custom_tools = []
+        analyst.custom_tool_recommender = BM25ToolRecommender(tools=["some_tool"], force=True)  # 设置一个初始值
+        analyst.set_custom_tool()
+        assert isinstance(analyst.custom_tool_recommender, BM25ToolRecommender)  # 验证即使没有自定义工具，现有的推荐器也保持不变
+
+    @pytest.mark.asyncio
+    async def test_write_and_exec_code_no_task(self, data_analyst):
+        data_analyst.planner.current_task = None
+        result = await data_analyst.write_and_exec_code()
+        assert "No current_task found" in result
+
+    @pytest.mark.asyncio
+    async def test_write_and_exec_code_success(self, data_analyst, mock_execute_code, mock_write_code):
+        # Setup mocks
+        data_analyst.planner.current_task = MagicMock()
+        data_analyst.planner.get_plan_status.return_value = "Plan status"
+        data_analyst.custom_tool_recommender = MagicMock()
+        data_analyst.custom_tool_recommender.get_recommended_tool_info = AsyncMock(return_value="Tool info")
+
+        mock_write_code.run.return_value = "test code"
+        mock_execute_code.run.return_value = ("Success result", True)
+
+        result = await data_analyst.write_and_exec_code("test instruction")
+
+        assert "Success" in result
+        assert mock_execute_code.init_code.called
+        assert mock_write_code.run.called
+        data_analyst.rc.working_memory.add.assert_called()
+
+    @pytest.mark.asyncio
+    async def test_write_and_exec_code_failure(self, data_analyst, mock_execute_code, mock_write_code):
+        # Setup mocks
+        data_analyst.planner.current_task = MagicMock()
+        data_analyst.planner.get_plan_status.return_value = "Plan status"
+        data_analyst.custom_tool_recommender = None
+
+        mock_write_code.run.return_value = "test code"
+        mock_execute_code.run.return_value = ("Failed result", False)
+
+        result = await data_analyst.write_and_exec_code()
+
+        assert "Failed" in result
+        assert mock_execute_code.run.call_count == 3  # Should retry 3 times
+
+    @pytest.mark.asyncio
+    async def test_check_data_no_tasks(self, data_analyst):
+        data_analyst.planner.plan.get_finished_tasks.return_value = []
+        await data_analyst._check_data()
+        assert not data_analyst.rc.working_memory.add.called
+
+    @pytest.mark.asyncio
+    async def test_check_data_with_data_task(self, data_analyst, mock_execute_code):
+        # Setup task with DATA_PREPROCESS type
+        task = MagicMock()
+        task.task_type = TaskType.DATA_PREPROCESS.type_name
+        data_analyst.planner.plan.get_finished_tasks.return_value = [task]
+        data_analyst.planner.plan.current_task = task
+
+        with patch('metagpt.actions.di.write_analysis_code.CheckData') as mock_check:
+            mock_check.return_value.run = AsyncMock(return_value="check code")
+            mock_execute_code.run.return_value = ("check result", True)
+
+            await data_analyst._check_data()
 
+            assert mock_check.return_value.run.called
+            assert mock_execute_code.run.called
+            data_analyst.rc.working_memory.add.assert_called()
 
-@pytest.mark.skip
-@pytest.mark.asyncio
-@pytest.mark.parametrize(
-    ("query", "filename"), [("similarity search about '有哪些需求描述？' in document ", TEST_DATA_PATH / "requirements/2.pdf")]
-)
-async def test_similarity_search(query, filename):
-    di = DataAnalyst()
-    query += f"'{str(filename)}'"
+    @pytest.mark.asyncio
+    async def test_run_special_command(self, data_analyst):
+        data_analyst.planner.plan.is_plan_finished.return_value = False
 
-    rsp = await di.run(query)
-    assert rsp
+        cmd = {"command_name": "end"}
+        with patch.object(RoleZero, '_run_special_command', return_value="base result"):
+            result = await data_analyst._run_special_command(cmd)
 
+        assert "All tasks are finished" in result
+        assert data_analyst.planner.plan.finish_all_tasks.called
 
-if __name__ == "__main__":
-    pytest.main([__file__, "-s"])
+        # Test non-end command
+        cmd = {"command_name": "other"}
+        with patch.object(RoleZero, '_run_special_command', return_value="base result"):
+            result = await data_analyst._run_special_command(cmd)
+        assert result == "base result"
diff --git a/tests/metagpt/roles/di/test_role_zero.py b/tests/metagpt/roles/di/test_role_zero.py
new file mode 100644
index 000000000..85a626c77
--- /dev/null
+++ b/tests/metagpt/roles/di/test_role_zero.py
@@ -0,0 +1,265 @@
+from typing import List
+from unittest.mock import AsyncMock, MagicMock, patch
+
+import pytest
+
+from metagpt.actions import UserRequirement
+from metagpt.roles.di.role_zero import RoleZero
+from metagpt.schema import Message, UserMessage, AIMessage
+from metagpt.tools.libs.browser import Browser
+
+
+class MockConfig:
+    """Mock configuration for RoleZero testing"""
+
+    class RoleZeroConfig:
+        enable_longterm_memory = True
+        longterm_memory_persist_path = "/tmp/test_memory"
+        memory_k = 5
+        similarity_top_k = 3
+        use_llm_ranker = False
+
+    role_zero = RoleZeroConfig()
+
+
+class MockLLM:
+    """Mock LLM for testing"""
+
+    def __init__(self, responses: List[str] = None):
+        self.responses = responses or ["Mock LLM Response"]
+        self.response_index = 0
+
+    async def aask(self, *args, **kwargs):
+        response = self.responses[self.response_index]
+        self.response_index = (self.response_index + 1) % len(self.responses)
+        return response
+
+    def support_image_input(self):
+        return True
+
+    def format_msg(self, msgs):
+        return msgs
+
+
+class MockToolRecommender:
+    """Mock tool recommender for testing"""
+
+    async def recommend_tools(self):
+        return []
+
+
+class MockMemory:
+    """Mock memory for testing"""
+
+    def add(self, msg):
+        pass
+
+    def get(self, k=None):
+        return []
+
+
+@pytest.fixture
+def mock_role_zero():
+    """Fixture providing a configured RoleZero instance for testing"""
+    role = RoleZero()
+    role.llm = MockLLM()
+    role.config = MockConfig()
+    role.tool_recommender = MockToolRecommender()
+    role.rc.working_memory = MockMemory()
+    role.rc.memory = MockMemory()
+    return role
+
+
+@pytest.fixture
+def mock_message():
+    """Fixture providing a test message"""
+    return Message(content="Test message", role="user")
+
+
+@pytest.mark.asyncio
+async def test_model_validators(mock_role_zero):
+    """Test all model validators"""
+    # Test set_plan_and_tool
+    assert mock_role_zero.react_mode == "react"
+    mock_role_zero = await mock_role_zero.set_plan_and_tool()
+    assert mock_role_zero.planner is not None
+
+    # Test set_tool_execution
+    mock_role_zero = await mock_role_zero.set_tool_execution()
+    assert "Plan.append_task" in mock_role_zero.tool_execution_map
+    assert "RoleZero.ask_human" in mock_role_zero.tool_execution_map
+
+    # Test set_longterm_memory
+    mock_role_zero = await mock_role_zero.set_longterm_memory()
+    assert mock_role_zero.rc.memory is not None
+
+
+@pytest.mark.asyncio
+async def test_think_react_cycle(mock_role_zero):
+    """Test the think-react cycle"""
+    # Setup test conditions
+    mock_role_zero.rc.todo = True
+    mock_role_zero.planner.plan.goal = "Test goal"
+    mock_role_zero.respond_language = "English"
+
+    # Test _think
+    with patch('metagpt.roles.di.role_zero.ThoughtReporter'):
+        result = await mock_role_zero._think()
+        assert result is True
+
+    # Test _react
+    mock_role_zero.rc.news = [Message(content="Test", cause_by=UserRequirement())]
+    with patch.object(mock_role_zero, '_quick_think', return_value=(None, "TASK")):
+        result = await mock_role_zero._react()
+        assert isinstance(result, Message)
+
+
+@pytest.mark.asyncio
+async def test_command_parsing(mock_role_zero):
+    """Test command parsing functionality"""
+    # Test valid JSON parsing
+    valid_commands = '''[
+        {"command_name": "Editor.read", "args": {"filename": "test.txt"}},
+        {"command_name": "Plan.finish_current_task", "args": {}}
+    ]'''
+    commands, ok, rsp = await mock_role_zero._parse_commands(valid_commands)
+    assert ok is True
+    assert len(commands) == 2
+
+    # Test invalid JSON
+    invalid_commands = "Invalid JSON"
+    with patch.object(mock_role_zero.llm, 'aask') as mock_aask:
+        mock_aask.return_value = valid_commands
+        commands, ok, rsp = await mock_role_zero._parse_commands(invalid_commands)
+        assert ok is False
+
+
+@pytest.mark.asyncio
+async def test_command_execution(mock_role_zero):
+    """Test command execution"""
+    # Test special commands
+    special_commands = [
+        {"command_name": "Plan.finish_current_task", "args": {}},
+        {"command_name": "end", "args": {}}
+    ]
+
+    with patch.object(mock_role_zero, '_run_special_command') as mock_special:
+        mock_special.return_value = "Special command executed"
+        result = await mock_role_zero._run_commands(special_commands)
+        assert "Command Plan.finish_current_task executed" in result
+
+    # Test normal commands
+    normal_commands = [
+        {"command_name": "Editor.read", "args": {"filename": "test.txt"}}
+    ]
+    with patch.object(mock_role_zero.editor, 'read', return_value="File content"):
+        result = await mock_role_zero._run_commands(normal_commands)
+        assert "Command Editor.read executed" in result
+
+
+@pytest.mark.asyncio
+async def test_message_handling(mock_role_zero):
+    """Test message parsing and handling"""
+    # Test browser action parsing
+    mock_browser = AsyncMock(spec=Browser)
+    mock_browser.is_empty_page = False
+    mock_browser.view.return_value = "Browser content"
+    mock_role_zero.browser = mock_browser
+
+    browser_memory = [
+        UserMessage(content="Command Browser.goto executed"),
+        UserMessage(content="Other message")
+    ]
+    result = await mock_role_zero.parse_browser_actions(browser_memory)
+    assert len(result) == 3
+
+    # Test editor result parsing
+    editor_memory = [
+        UserMessage(content="Command Editor.read executed: content"),
+        UserMessage(content="Normal message")
+    ]
+    result = await mock_role_zero.parse_editor_result(editor_memory)
+    assert len(result) == 2
+
+    # Test image parsing
+    image_memory = [
+        UserMessage(content="Message with ![image](test.png)"),
+        UserMessage(content="Normal message")
+    ]
+    result = mock_role_zero.parse_images(image_memory)
+    assert len(result) == 2
+
+
+@pytest.mark.asyncio
+async def test_error_cases(mock_role_zero):
+    """Test error handling in various scenarios"""
+    # Test invalid command execution
+    invalid_commands = [
+        {"command_name": "NonExistentCommand", "args": {}}
+    ]
+    result = await mock_role_zero._run_commands(invalid_commands)
+    assert "Command NonExistentCommand not found" in result
+
+    # Test command parsing with malformed JSON
+    malformed_json = '[{"command_name": "test", "args": {}]'  # Missing closing brace
+    with patch.object(mock_role_zero.llm, 'aask') as mock_aask:
+        mock_aask.return_value = '[{"command_name": "fixed", "args": {}}]'  # Valid JSON response
+        commands, ok, rsp = await mock_role_zero._parse_commands(malformed_json)
+        assert ok is True
+
+    # Test command parsing with improper command structure
+    invalid_format = '[{"not_a_command": true}]'  # Valid JSON but wrong format
+    with patch.object(mock_role_zero.llm, 'aask') as mock_aask:
+        mock_aask.return_value = invalid_format
+        commands, ok, rsp = await mock_role_zero._parse_commands(invalid_format)
+        assert ok is False
+
+    # Test think with no todo
+    mock_role_zero.rc.todo = False
+    result = await mock_role_zero._think()
+    assert result is False
+
+
+@pytest.mark.asyncio
+async def test_special_commands(mock_role_zero):
+    """Test special command handling"""
+    # Test Plan.finish_current_task
+    finish_command = {"command_name": "Plan.finish_current_task", "args": {}}
+    result = await mock_role_zero._run_special_command(finish_command)
+    assert "Current task is finished" in result
+
+    # Test end command
+    end_command = {"command_name": "end", "args": {}}
+    with patch.object(mock_role_zero.llm, 'aask', return_value="Summary"):
+        result = await mock_role_zero._run_special_command(end_command)
+        assert result
+
+    # Test ask_human command
+    ask_command = {"command_name": "RoleZero.ask_human", "args": {"question": "Test?"}}
+    result = await mock_role_zero._run_special_command(ask_command)
+    assert "Not in MGXEnv" in result
+
+
+@pytest.mark.asyncio
+async def test_quick_think(mock_role_zero):
+    """Test quick think functionality"""
+    mock_role_zero.rc.news = [Message(content="Test", cause_by=UserRequirement())]
+
+    with patch.object(mock_role_zero.llm, 'aask') as mock_aask:
+        mock_aask.side_effect = ["QUICK", "Quick response"]
+        result, intent = await mock_role_zero._quick_think()
+        assert isinstance(result, AIMessage)
+        assert intent == "QUICK"
+
+
+@pytest.mark.asyncio
+async def test_experience_retrieval(mock_role_zero):
+    """Test experience retrieval functionality"""
+    # Test with empty memory
+    result = mock_role_zero._retrieve_experience()
+    assert isinstance(result, str)
+
+    # Test with mock experience retriever
+    mock_role_zero.experience_retriever.retrieve = MagicMock(return_value="Test experience")
+    result = mock_role_zero._retrieve_experience()
+    assert result == "Test experience"
diff --git a/tests/metagpt/roles/di/test_swe_agent.py b/tests/metagpt/roles/di/test_swe_agent.py
new file mode 100644
index 000000000..8675b2cf2
--- /dev/null
+++ b/tests/metagpt/roles/di/test_swe_agent.py
@@ -0,0 +1,143 @@
+import json
+import pytest
+from unittest.mock import AsyncMock, patch
+
+from metagpt.roles.di.swe_agent import SWEAgent
+from metagpt.schema import Message
+from metagpt.tools.libs.terminal import Bash
+
+
+@pytest.fixture
+def mock_terminal():
+    terminal = AsyncMock(spec=Bash)
+    terminal.run = AsyncMock()
+    return terminal
+
+
+@pytest.fixture
+def mock_extract_patch():
+    with patch('metagpt.tools.swe_agent_commands.swe_agent_utils.extract_patch') as mock:
+        mock.return_value = 'test_patch'
+        yield mock
+
+
+@pytest.fixture
+def swe_agent(mock_terminal):
+    agent = SWEAgent()
+    agent.terminal = mock_terminal
+    # Mock super()._think and super()._act
+    agent._think = AsyncMock(return_value=True)
+    agent._act = AsyncMock(return_value=Message(content='test'))
+    return agent
+
+
+@pytest.mark.asyncio
+async def test_initialization():
+    """Test SWEAgent initialization and attributes"""
+    agent = SWEAgent()
+    assert agent.name == 'Swen'
+    assert agent.profile == 'Issue Solver'
+    assert isinstance(agent.terminal, Bash)
+    assert agent.output_diff == ''
+    assert agent.max_react_loop == 40
+    assert agent.run_eval is False
+
+
+@pytest.mark.asyncio
+async def test_think(swe_agent):
+    """Test _think method with mocked dependencies"""
+    # Mock _format_instruction
+    swe_agent._format_instruction = AsyncMock()
+
+    result = await swe_agent._think()
+    assert result is True
+    swe_agent._format_instruction.assert_called_once()
+
+
+@pytest.mark.asyncio
+async def test_format_instruction(swe_agent):
+    """Test _format_instruction with mocked terminal response"""
+    mock_state = {"key": "value"}
+    swe_agent.terminal.run.return_value = json.dumps(mock_state)
+
+    await swe_agent._format_instruction()
+    swe_agent.terminal.run.assert_called_with('state')
+    assert isinstance(swe_agent.cmd_prompt_current_state, str)
+
+
+@pytest.mark.asyncio
+async def test_format_instruction_error(swe_agent):
+    """Test _format_instruction with invalid JSON response"""
+    swe_agent.terminal.run.return_value = 'invalid json'
+
+    with pytest.raises(json.JSONDecodeError):
+        await swe_agent._format_instruction()
+
+
+@pytest.mark.asyncio
+async def test_act_with_eval(swe_agent):
+    """Test _act method with run_eval=True"""
+    swe_agent.run_eval = True
+    swe_agent._parse_commands_for_eval = AsyncMock()
+
+    result = await swe_agent._act()
+    assert isinstance(result, Message)
+    swe_agent._parse_commands_for_eval.assert_called_once()
+
+
+@pytest.mark.asyncio
+async def test_act_without_eval(swe_agent):
+    """Test _act method with run_eval=False"""
+    swe_agent.run_eval = False
+    swe_agent._parse_commands_for_eval = AsyncMock()
+
+    result = await swe_agent._act()
+    assert isinstance(result, Message)
+    swe_agent._parse_commands_for_eval.assert_not_called()
+
+
+@pytest.mark.asyncio
+async def test_parse_commands_for_eval_with_diff(swe_agent, mock_extract_patch):
+    """Test _parse_commands_for_eval with git diff output"""
+    swe_agent.rc.todo = False
+    swe_agent.terminal.run.return_value = 'test diff output'
+
+    await swe_agent._parse_commands_for_eval()
+    assert swe_agent.output_diff == 'test_patch'
+    mock_extract_patch.assert_called_with('test diff output')
+
+
+@pytest.mark.asyncio
+async def test_parse_commands_for_eval_with_error(swe_agent):
+    """Test _parse_commands_for_eval error handling"""
+    swe_agent.rc.todo = False
+    swe_agent.terminal.run.side_effect = Exception('test error')
+
+    await swe_agent._parse_commands_for_eval()
+    assert swe_agent.output_diff == ''
+
+
+@pytest.mark.asyncio
+async def test_parse_commands_for_eval_with_todo(swe_agent):
+    """Test _parse_commands_for_eval when todo is True"""
+    swe_agent.rc.todo = True
+
+    await swe_agent._parse_commands_for_eval()
+    swe_agent.terminal.run.assert_not_called()
+
+
+def test_retrieve_experience(swe_agent):
+    """Test _retrieve_experience returns MINIMAL_EXAMPLE"""
+    from metagpt.prompts.di.swe_agent import MINIMAL_EXAMPLE
+
+    result = swe_agent._retrieve_experience()
+    assert result == MINIMAL_EXAMPLE
+
+
+def test_update_tool_execution(swe_agent):
+    """Test _update_tool_execution adds required tools"""
+    swe_agent._update_tool_execution()
+
+    assert 'Bash.run' in swe_agent.tool_execution_map
+    assert 'git_create_pull' in swe_agent.tool_execution_map
+    assert swe_agent.tool_execution_map['Bash.run'] == swe_agent.terminal.run
\ No newline at end of file
diff --git a/tests/metagpt/roles/test_qa_engineer.py b/tests/metagpt/roles/test_qa_engineer.py
index b89e7d5eb..0501ce5a0 100644
--- a/tests/metagpt/roles/test_qa_engineer.py
+++ b/tests/metagpt/roles/test_qa_engineer.py
@@ -9,54 +9,211 @@
 from typing import List
 
 import pytest
-from pydantic import Field
+from pydantic import BaseModel, Field
 
-from metagpt.actions import DebugError, RunCode, WriteTest
+from metagpt.actions import DebugError, RunCode, WriteTest, UserRequirement
 from metagpt.actions.summarize_code import SummarizeCode
 from metagpt.environment import Environment
 from metagpt.roles import QaEngineer
-from metagpt.schema import Message
-from metagpt.utils.common import any_to_str, aread, awrite
+from metagpt.schema import Message, AIMessage, Document, RunCodeContext
+from metagpt.utils.common import any_to_str, awrite
 
 
-async def test_qa(context):
-    # Prerequisites
-    demo_path = Path(__file__).parent / "../../data/demo_project"
-    context.src_workspace = Path(context.repo.workdir) / "qa/game_2048"
-    data = await aread(filename=demo_path / "game.py", encoding="utf-8")
-    await awrite(filename=context.src_workspace / "game.py", data=data, encoding="utf-8")
-    await awrite(filename=Path(context.repo.workdir) / "requirements.txt", data="")
+class MockProjectRepo:
+    def __init__(self, workdir):
+        self.workdir = Path(workdir)
+        self.srcs = MockRepoFiles(self.workdir / "src")
+        self.tests = MockRepoFiles(self.workdir / "tests")
+        self.test_outputs = MockRepoFiles(self.workdir / "test_outputs")
+        self.src_relative_path = None
 
-    class MockEnv(Environment):
-        msgs: List[Message] = Field(default_factory=list)
+    def with_src_path(self, path):
+        self.src_relative_path = path
+        return self
 
-        def publish_message(self, message: Message, peekable: bool = True) -> bool:
-            self.msgs.append(message)
-            return True
 
-    env = MockEnv()
+class MockRepoFiles:
+    def __init__(self, workdir):
+        self.workdir = Path(workdir)
+        self.root_path = workdir
+        self.changed_files = {}
+
+    async def get(self, filename):
+        if filename.endswith(".py"):
+            return Document(root_path=str(self.root_path), filename=filename, content="def test(): pass")
+        return None
+
+    async def save(self, filename, content, dependencies=None):
+        self.changed_files[filename] = content
+        return Document(root_path=str(self.root_path), filename=filename, content=content)
+
+    async def save_doc(self, doc, dependencies=None):
+        self.changed_files[doc.filename] = doc.content
+        return doc
+
+
+class MockContext(BaseModel):
+    reqa_file: str = None
+    src_workspace: Path = None
+    git_repo: BaseModel = None
+
+    class Config:
+        arbitrary_types_allowed = True
+
+
+class MockGitRepo:
+    def __init__(self, workdir):
+        self.workdir = workdir
+        self.name = "test_project"
+
+
+class MockEnv(Environment):
+    msgs: List[Message] = Field(default_factory=list)
+
+    def publish_message(self, message: Message, peekable: bool = True) -> bool:
+        self.msgs.append(message)
+        return True
+
+
+@pytest.fixture
+def mock_env():
+    return MockEnv()
+
+
+@pytest.fixture
+def mock_repo(tmp_path):
+    return MockProjectRepo(tmp_path)
+
+
+@pytest.fixture
+def qa_engineer(mock_env, mock_repo):
+    role = QaEngineer()
+    role.set_env(mock_env)
+    role.repo = mock_repo
+    return role
+
+
+@pytest.mark.asyncio
+async def test_initialization():
+    """Test QaEngineer initialization"""
+    role = QaEngineer()
+    assert role.name == "Edward"
+    assert role.profile == "QaEngineer"
+    assert role.test_round == 0
+    assert role.test_round_allowed == 5
+    assert not role.enable_memory
+
+
+@pytest.mark.asyncio
+async def test_write_test(qa_engineer, mock_repo):
+    """Test _write_test method"""
+    context = MockContext(reqa_file="test.py")
+    qa_engineer.context = context
+    message = Message(content="Test content")
+
+    await qa_engineer._write_test(message)
+
+    assert "test_test.py" in mock_repo.tests.changed_files
+    assert mock_repo.tests.changed_files["test_test.py"] is not None
+
 
+@pytest.mark.asyncio
+async def test_run_code(qa_engineer, mock_repo):
+    """Test _run_code method"""
+    context = RunCodeContext(
+        command=["python", "test_sample.py"],
+        code_filename="sample.py",
+        test_filename="test_sample.py",
+        working_directory=str(mock_repo.workdir),
+    )
+    message = Message(content=context.model_dump_json())
+
+    await qa_engineer._run_code(message)
+
+    assert "test_sample.py.json" in mock_repo.test_outputs.changed_files
+
+
+@pytest.mark.asyncio
+async def test_parse_user_requirement(qa_engineer):
+    """Test _parse_user_requirement method"""
+    qa_engineer.git_repo = MockGitRepo(Path("/test/path"))
+    message = Message(
+        content="Create test for game.py",
+        cause_by=any_to_str(UserRequirement)
+    )
+
+    result = await qa_engineer._parse_user_requirement(message)
+    assert isinstance(result, AIMessage)
+
+
+@pytest.mark.asyncio
+async def test_think_with_summarize_code(qa_engineer):
+    """Test _think method with SummarizeCode message"""
+
+    class MockArgs(BaseModel):
+        project_path: str = "/test/path"
+
+    message = Message(
+        content="Test content",
+        cause_by=any_to_str(SummarizeCode),
+        instruct_content=MockArgs()
+    )
+    qa_engineer.rc.news = [message]
+
+    result = await qa_engineer._think()
+    assert result is True
+    assert qa_engineer.input_args is not None
+    assert qa_engineer.repo is not None
+
+
+@pytest.mark.asyncio
+async def test_act_exceeding_rounds(qa_engineer):
+    """Test _act method when exceeding test rounds"""
+    qa_engineer.test_round = 6
+    qa_engineer.input_args = BaseModel()
+
+    result = await qa_engineer._act()
+    assert isinstance(result, AIMessage)
+    assert "Exceeding" in result.content
+
+
+@pytest.mark.asyncio
+async def test_qa_full_workflow(tmp_path):
+    """Test the full QA workflow"""
+    # Setup mock context and environment
+    git_repo = MockGitRepo(tmp_path)
+    context = MockContext(src_workspace=tmp_path / "qa/game_2048", git_repo=git_repo)
+    context.src_workspace.parent.mkdir(parents=True, exist_ok=True)
+
+    # Create mock game.py file
+    await awrite(filename=context.src_workspace / "game.py", data="def test(): pass", encoding="utf-8")
+    await awrite(filename=tmp_path / "requirements.txt", data="")
+
+    # Setup QA engineer
+    env = MockEnv()
     role = QaEngineer(context=context)
     role.set_env(env)
+    role.repo = MockProjectRepo(tmp_path)
+
+    # Test full workflow
     await role.run(with_message=Message(content="", cause_by=SummarizeCode))
     assert env.msgs
     assert env.msgs[0].cause_by == any_to_str(WriteTest)
+
     msg = env.msgs[0]
     env.msgs.clear()
     await role.run(with_message=msg)
     assert env.msgs
     assert env.msgs[0].cause_by == any_to_str(RunCode)
+
     msg = env.msgs[0]
     env.msgs.clear()
     await role.run(with_message=msg)
     assert env.msgs
     assert env.msgs[0].cause_by == any_to_str(DebugError)
+
     msg = env.msgs[0]
     env.msgs.clear()
     role.test_round_allowed = 1
     rsp = await role.run(with_message=msg)
     assert "Exceeding" in rsp.content
-
-
-if __name__ == "__main__":
-    pytest.main([__file__, "-s"])