negyedik gyakorlat + megoldasok

Backend/negyedik gyakorlat/tests/unit/queries/GetMeQueryHandler.test.js

@@ -0,0 +1,65 @@
+const GetMeQueryHandler = require('../../../src/application/user/queries/GetMeQueryHandler');
+const GetMeQuery = require('../../../src/application/user/queries/GetMeQuery');
+
+describe('GetMeQueryHandler', () => {
+  let handler;
+  let mockPrisma;
+
+  beforeEach(() => {
+    // Mock Prisma
+    mockPrisma = {
+      user: {
+        findUnique: jest.fn()
+      }
+    };
+
+    handler = new GetMeQueryHandler(mockPrisma);
+
+    // Reset all mocks
+    jest.clearAllMocks();
+  });
+
+  describe('handle - success cases', () => {
+    it('should return current user successfully', async () => {
+      // Arrange
+      const query = new GetMeQuery(1);
+      
+      mockPrisma.user.findUnique.mockResolvedValue({
+        id: 1,
+        name: 'John Doe',
+        email: 'john@example.com',
+        password: 'hashed_password',
+        createdAt: new Date(),
+        updatedAt: new Date()
+      });
+
+      // Act
+      const result = await handler.handle(query);
+
+      // Assert
+      expect(mockPrisma.user.findUnique).toHaveBeenCalledWith({
+        where: { id: 1 }
+      });
+      expect(result).toEqual({
+        id: 1,
+        name: 'John Doe',
+        email: 'john@example.com',
+        createdAt: expect.any(Date),
+        updatedAt: expect.any(Date)
+      });
+      expect(result.password).toBeUndefined(); // Password should not be returned
+    });
+  });
+
+  describe('handle - error cases', () => {
+    it('should throw error if user not found', async () => {
+      // Arrange
+      const query = new GetMeQuery(999);
+      
+      mockPrisma.user.findUnique.mockResolvedValue(null);
+
+      // Act & Assert
+      await expect(handler.handle(query)).rejects.toThrow('User not found');
+    });
+  });
+});