negyedik gyakorlat + megoldasok

2026-03-04 20:02:39 +01:00
parent afc3777ac9
commit 388aa908de
217 changed files with 19791 additions and 0 deletions
@@ -0,0 +1,117 @@
+const LoginUserCommandHandler = require('../../../src/application/auth/commands/LoginUserCommandHandler');
+const LoginUserCommand = require('../../../src/application/auth/commands/LoginUserCommand');
+const bcrypt = require('bcryptjs');
+const JwtService = require('../../../src/application/services/JwtService');
+
+// Mock dependencies
+jest.mock('bcryptjs');
+jest.mock('../../../src/application/services/JwtService');
+
+describe('LoginUserCommandHandler', () => {
+  let handler;
+  let mockPrisma;
+  let mockJwtService;
+
+  beforeEach(() => {
+    // Mock JwtService instance
+    mockJwtService = {
+      generateToken: jest.fn()
+    };
+    JwtService.mockImplementation(() => mockJwtService);
+
+    // Mock Prisma
+    mockPrisma = {
+      user: {
+        findUnique: jest.fn()
+      }
+    };
+
+    handler = new LoginUserCommandHandler(mockPrisma);
+
+    // Reset all mocks
+    jest.clearAllMocks();
+  });
+
+  describe('handle - success cases', () => {
+    it('should login user successfully with valid credentials', async () => {
+      // Arrange
+      const command = new LoginUserCommand('john@example.com', 'password123');
+      
+      mockPrisma.user.findUnique.mockResolvedValue({
+        id: 1,
+        name: 'John Doe',
+        email: 'john@example.com',
+        password: 'hashed_password',
+        createdAt: new Date(),
+        updatedAt: new Date()
+      });
+      bcrypt.compare.mockResolvedValue(true); // Password is valid
+      mockJwtService.generateToken.mockReturnValue('mock_jwt_token');
+
+      // Act
+      const result = await handler.handle(command);
+
+      // Assert
+      expect(mockPrisma.user.findUnique).toHaveBeenCalledWith({
+        where: { email: 'john@example.com' }
+      });
+      expect(bcrypt.compare).toHaveBeenCalledWith('password123', 'hashed_password');
+      expect(mockJwtService.generateToken).toHaveBeenCalledWith({
+        userId: 1,
+        email: 'john@example.com'
+      });
+      expect(result.user).toEqual({
+        id: 1,
+        name: 'John Doe',
+        email: 'john@example.com',
+        createdAt: expect.any(Date),
+        updatedAt: expect.any(Date)
+      });
+      expect(result.token).toBe('mock_jwt_token');
+      expect(result.user.password).toBeUndefined(); // Password should not be returned
+    });
+  });
+
+  describe('handle - validation errors', () => {
+    it('should throw error if email is missing', async () => {
+      // Arrange
+      const command = new LoginUserCommand('', 'password123');
+
+      // Act & Assert
+      await expect(handler.handle(command)).rejects.toThrow('Email and password are required');
+    });
+
+    it('should throw error if password is missing', async () => {
+      // Arrange
+      const command = new LoginUserCommand('john@example.com', '');
+
+      // Act & Assert
+      await expect(handler.handle(command)).rejects.toThrow('Email and password are required');
+    });
+
+    it('should throw error if user does not exist', async () => {
+      // Arrange
+      const command = new LoginUserCommand('nonexistent@example.com', 'password123');
+      
+      mockPrisma.user.findUnique.mockResolvedValue(null);
+
+      // Act & Assert
+      await expect(handler.handle(command)).rejects.toThrow('Invalid email or password');
+    });
+
+    it('should throw error if password is incorrect', async () => {
+      // Arrange
+      const command = new LoginUserCommand('john@example.com', 'wrongpassword');
+      
+      mockPrisma.user.findUnique.mockResolvedValue({
+        id: 1,
+        email: 'john@example.com',
+        password: 'hashed_password'
+      });
+      bcrypt.compare.mockResolvedValue(false); // Password is invalid
+
+      // Act & Assert
+      await expect(handler.handle(command)).rejects.toThrow('Invalid email or password');
+    });
+  });
+});