test: 补充知识处理、检索与 Agent 回归用例

覆盖切块、向量检索、工具调用和历史预算；模型相关用例使用桩。

backend/tests/repo/test_user_repo.py

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+"""
+Copyright 2024-2026 ReplyPier
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+"""
+
+import pytest
+from app.models.user import User
+from app.repositories.user import UserRepository
+from uuid import UUID, uuid4
+from app.models.organization import Organization
+
+@pytest.fixture
+def user_repo(db):
+    """Create a user repository instance"""
+    return UserRepository(db)
+
+def test_create_user(user_repo, test_organization_id):
+    """Test creating a new user"""
+    email = "test@example.com"
+    password = "testpassword"
+    full_name = "Test User"
+    hashed_password = User.get_password_hash(password)
+
+    user = user_repo.create_user(
+        email=email,
+        hashed_password=hashed_password,
+        full_name=full_name,
+        organization_id=test_organization_id
+    )
+
+    assert user.email == email
+    assert user.full_name == full_name
+    assert user.organization_id == test_organization_id
+    assert user.verify_password(password)  # Verify the password works
+
+def test_get_user_by_email(user_repo, test_organization_id):
+    """Test retrieving a user by email"""
+    # Create test user
+    email = "test@example.com"
+    hashed_password = User.get_password_hash("testpassword")
+    user = user_repo.create_user(
+        email=email,
+        hashed_password=hashed_password,
+        full_name="Test User",
+        organization_id=test_organization_id
+    )
+
+    # Retrieve user
+    retrieved_user = user_repo.get_user_by_email(email)
+    assert retrieved_user.id == user.id
+    assert retrieved_user.email == email
+
+def test_get_user_by_id(user_repo, test_organization_id):
+    """Test retrieving a user by ID"""
+    # Create test user
+    hashed_password = User.get_password_hash("testpassword")
+    user = user_repo.create_user(
+        email="test@example.com",
+        hashed_password=hashed_password,
+        full_name="Test User",
+        organization_id=test_organization_id
+    )
+
+    # Retrieve user
+    retrieved_user = user_repo.get_user(user.id)
+    assert retrieved_user.id == user.id
+    assert retrieved_user.email == user.email
+
+def test_get_users_by_organization(user_repo, test_organization_id):
+    """Test retrieving all users for an organization"""
+    # Create multiple users
+    hashed_password = User.get_password_hash("testpassword")
+    user1 = user_repo.create_user(
+        email="user1@example.com",
+        hashed_password=hashed_password,
+        full_name="User One",
+        organization_id=test_organization_id
+    )
+    user2 = user_repo.create_user(
+        email="user2@example.com",
+        hashed_password=hashed_password,
+        full_name="User Two",
+        organization_id=test_organization_id
+    )
+
+    # Create another organization for testing
+    other_org = Organization(
+        name="Other Organization",
+        domain="other.com",
+        timezone="UTC"
+    )
+    user_repo.db.add(other_org)
+    user_repo.db.commit()
+    user_repo.db.refresh(other_org)
+
+    # Create user in different organization
+    user_repo.create_user(
+        email="other@example.com",
+        hashed_password=hashed_password,
+        full_name="Other User",
+        organization_id=other_org.id
+    )
+
+    # Get users for test organization
+    users = user_repo.get_users_by_organization(test_organization_id)
+    assert len(users) == 2
+    assert all(u.organization_id == test_organization_id for u in users)
+
+def test_update_user(user_repo, test_organization_id):
+    """Test updating a user"""
+    # Create test user
+    hashed_password = User.get_password_hash("testpassword")
+    user = user_repo.create_user(
+        email="test@example.com",
+        hashed_password=hashed_password,
+        full_name="Test User",
+        organization_id=test_organization_id
+    )
+
+    # Update user
+    new_name = "Updated User"
+    updated_user = user_repo.update_user(
+        user_id=str(user.id),
+        full_name=new_name
+    )
+
+    assert updated_user.full_name == new_name
+    assert updated_user.id == user.id
+
+def test_authenticate_user(user_repo, test_organization_id):
+    """Test user authentication"""
+    email = "test@example.com"
+    password = "testpassword"
+    hashed_password = User.get_password_hash(password)
+    
+    # Create test user
+    user = user_repo.create_user(
+        email=email,
+        hashed_password=hashed_password,
+        full_name="Test User",
+        organization_id=test_organization_id
+    )
+
+    # Test valid password
+    assert user.verify_password(password)
+
+    # Test invalid password
+    assert not user.verify_password("wrongpassword")
+
+def test_get_multi(user_repo, test_organization_id):
+    """Test retrieving multiple users with pagination"""
+    # Create multiple users
+    users = []
+    hashed_password = User.get_password_hash("testpassword")
+    for i in range(5):
+        user = user_repo.create_user(
+            email=f"user{i}@example.com",
+            hashed_password=hashed_password,
+            full_name=f"User {i}",
+            organization_id=test_organization_id
+        )
+        users.append(user)
+
+    # Test pagination
+    first_page = user_repo.get_users_by_organization(test_organization_id)[:2]
+    assert len(first_page) == 2
+
+    second_page = user_repo.get_users_by_organization(test_organization_id)[2:4]
+    assert len(second_page) == 2
+
+    last_page = user_repo.get_users_by_organization(test_organization_id)[4:]
+    assert len(last_page) == 1