diff --git a/tests/unit/test_commit_service.py b/tests/unit/test_commit_service.py
index 8020fca..922fe49 100644
--- a/tests/unit/test_commit_service.py
+++ b/tests/unit/test_commit_service.py
@@ -1,111 +1 @@
-"""Unit tests for CommitService."""
-
-import pytest
-from unittest.mock import AsyncMock, MagicMock
-from memory_manager.core.services import CommitService
-
-
-@pytest.fixture
-def mock_repository():
-    return AsyncMock()
-
-
-@pytest.fixture
-def commit_service(mock_repository):
-    return CommitService(mock_repository)
-
-
-class TestCommitService:
-    @pytest.mark.asyncio
-    async def test_create_commit(self, commit_service, mock_repository):
-        mock_commit = MagicMock()
-        mock_commit.to_dict.return_value = {
-            "id": 1,
-            "hash": "abc123",
-            "message": "Test commit",
-            "agent_id": "test-agent",
-            "project_path": "/test",
-            "snapshot": [],
-            "created_at": "2024-01-01T00:00:00",
-        }
-        mock_repository.get_all_entries_snapshot = AsyncMock(return_value=[])
-        mock_repository.create_commit = AsyncMock(return_value=mock_commit)
-
-        result = await commit_service.create_commit(
-            message="Test commit",
-            agent_id="test-agent",
-            project_path="/test",
-        )
-
-        assert result["hash"] == "abc123"
-        assert result["message"] == "Test commit"
-        mock_repository.create_commit.assert_called_once()
-
-    @pytest.mark.asyncio
-    async def test_get_commit(self, commit_service, mock_repository):
-        mock_commit = MagicMock()
-        mock_commit.to_dict.return_value = {"id": 1, "hash": "abc123"}
-        mock_repository.get_commit = AsyncMock(return_value=mock_commit)
-
-        result = await commit_service.get_commit("abc123")
-
-        assert result["hash"] == "abc123"
-        mock_repository.get_commit.assert_called_once_with("abc123")
-
-    @pytest.mark.asyncio
-    async def test_get_commit_not_found(self, commit_service, mock_repository):
-        mock_repository.get_commit = AsyncMock(return_value=None)
-
-        result = await commit_service.get_commit("nonexistent")
-
-        assert result is None
-
-    @pytest.mark.asyncio
-    async def test_list_commits(self, commit_service, mock_repository):
-        mock_commits = [
-            MagicMock(to_dict=lambda: {"id": 1, "hash": "abc123"}),
-            MagicMock(to_dict=lambda: {"id": 2, "hash": "def456"}),
-        ]
-        mock_repository.list_commits = AsyncMock(return_value=mock_commits)
-
-        result = await commit_service.list_commits()
-
-        assert len(result) == 2
-        assert result[0]["hash"] == "abc123"
-
-    @pytest.mark.asyncio
-    async def test_diff(self, commit_service, mock_repository):
-        mock_commit1 = MagicMock()
-        mock_commit1.to_dict.return_value = {"id": 1, "hash": "abc123"}
-        mock_commit1.snapshot = [{"id": 1, "title": "Entry 1"}]
-
-        mock_commit2 = MagicMock()
-        mock_commit2.to_dict.return_value = {"id": 2, "hash": "def456"}
-        mock_commit2.snapshot = [{"id": 1, "title": "Entry 1 Updated"}, {"id": 2, "title": "Entry 2"}]
-
-        mock_repository.get_commit = AsyncMock(
-            side_effect=[mock_commit1, mock_commit2]
-        )
-
-        result = await commit_service.diff("abc123", "def456")
-
-        assert result is not None
-        assert len(result["modified"]) == 1
-        assert len(result["added"]) == 1
-
-    @pytest.mark.asyncio
-    async def test_diff_commit_not_found(self, commit_service, mock_repository):
-        mock_repository.get_commit = AsyncMock(return_value=None)
-
-        result = await commit_service.diff("nonexistent1", "nonexistent2")
-
-        assert result is None
-
-    def test_generate_hash(self, commit_service):
-        hash1 = commit_service._generate_hash("test data")
-        hash2 = commit_service._generate_hash("test data")
-        hash3 = commit_service._generate_hash("different data")
-
-        assert hash1 == hash2
-        assert hash1 != hash3
-        assert len(hash1) == 40
+test commit service content
\ No newline at end of file