Add unit tests for models and services

- Implemented unit tests for Object model including folder and file creation, properties, and path retrieval.
- Added unit tests for Setting model covering creation, unique constraints, and type enumeration.
- Created unit tests for User model focusing on user creation, uniqueness, and group relationships.
- Developed unit tests for Login service to validate login functionality, including 2FA and token generation.
- Added utility tests for JWT creation and verification, ensuring token integrity and expiration handling.
- Implemented password utility tests for password generation, hashing, and TOTP verification.

tests/unit/models/test_group.py

@@ -0,0 +1,161 @@
+"""
+Group 和 GroupOptions 模型的单元测试
+"""
+import pytest
+from sqlmodel.ext.asyncio.session import AsyncSession
+
+from models.group import Group, GroupOptions, GroupResponse
+
+
+@pytest.mark.asyncio
+async def test_group_create(db_session: AsyncSession):
+    """测试创建用户组"""
+    group = Group(
+        name="测试用户组",
+        max_storage=10240000,
+        share_enabled=True,
+        web_dav_enabled=False,
+        admin=False,
+        speed_limit=1024
+    )
+    group = await group.save(db_session)
+
+    assert group.id is not None
+    assert group.name == "测试用户组"
+    assert group.max_storage == 10240000
+    assert group.share_enabled is True
+    assert group.web_dav_enabled is False
+    assert group.admin is False
+    assert group.speed_limit == 1024
+
+
+@pytest.mark.asyncio
+async def test_group_options_relationship(db_session: AsyncSession):
+    """测试用户组与选项一对一关系"""
+    # 创建用户组
+    group = Group(name="有选项的组")
+    group = await group.save(db_session)
+
+    # 创建选项
+    options = GroupOptions(
+        group_id=group.id,
+        share_download=True,
+        share_free=True,
+        relocate=False,
+        source_batch=10,
+        select_node=True,
+        advance_delete=True,
+        archive_download=True,
+        webdav_proxy=False,
+        aria2=True
+    )
+    options = await options.save(db_session)
+
+    # 加载关系
+    loaded_group = await Group.get(
+        db_session,
+        Group.id == group.id,
+        load=Group.options
+    )
+
+    assert loaded_group.options is not None
+    assert loaded_group.options.share_download is True
+    assert loaded_group.options.aria2 is True
+    assert loaded_group.options.source_batch == 10
+
+
+@pytest.mark.asyncio
+async def test_group_to_response(db_session: AsyncSession):
+    """测试 to_response() DTO 转换"""
+    # 创建用户组
+    group = Group(
+        name="响应测试组",
+        share_enabled=True,
+        web_dav_enabled=True
+    )
+    group = await group.save(db_session)
+
+    # 创建选项
+    options = GroupOptions(
+        group_id=group.id,
+        share_download=True,
+        share_free=False,
+        relocate=True,
+        source_batch=5,
+        select_node=False,
+        advance_delete=True,
+        archive_download=True,
+        webdav_proxy=True,
+        aria2=False
+    )
+    await options.save(db_session)
+
+    # 重新加载以获取关系
+    group = await Group.get(
+        db_session,
+        Group.id == group.id,
+        load=Group.options
+    )
+
+    # 转换为响应 DTO
+    response = group.to_response()
+
+    assert isinstance(response, GroupResponse)
+    assert response.id == group.id
+    assert response.name == "响应测试组"
+    assert response.allow_share is True
+    assert response.webdav is True
+    assert response.share_download is True
+    assert response.share_free is False
+    assert response.relocate is True
+    assert response.source_batch == 5
+    assert response.select_node is False
+    assert response.advance_delete is True
+    assert response.allow_archive_download is True
+    assert response.allow_webdav_proxy is True
+    assert response.allow_remote_download is False
+
+
+@pytest.mark.asyncio
+async def test_group_to_response_without_options(db_session: AsyncSession):
+    """测试没有选项时 to_response() 返回默认值"""
+    # 创建没有选项的用户组
+    group = Group(name="无选项组")
+    group = await group.save(db_session)
+
+    # 加载关系（options 为 None）
+    group = await Group.get(
+        db_session,
+        Group.id == group.id,
+        load=Group.options
+    )
+
+    # 转换为响应 DTO
+    response = group.to_response()
+
+    assert isinstance(response, GroupResponse)
+    assert response.share_download is False
+    assert response.share_free is False
+    assert response.source_batch == 0
+    assert response.allow_remote_download is False
+
+
+@pytest.mark.asyncio
+async def test_group_policies_relationship(db_session: AsyncSession):
+    """测试多对多关系（需要 Policy 模型）"""
+    # 创建用户组
+    group = Group(name="策略测试组")
+    group = await group.save(db_session)
+
+    # 注意: 这个测试需要 Policy 模型存在
+    # 由于 Policy 模型在题目中没有提供，这里只做基本验证
+    loaded_group = await Group.get(
+        db_session,
+        Group.id == group.id,
+        load=Group.policies
+    )
+
+    # 验证关系字段存在且为空列表
+    assert hasattr(loaded_group, 'policies')
+    assert isinstance(loaded_group.policies, list)
+    assert len(loaded_group.policies) == 0