refactor(qrcode): 提取独立组件并添加单元测试

- 创建 pages/QrCode/types.ts 定义状态类型接口 - 提取 QrCodePreview 组件用于二维码预览和操作 - 提取 ImageUploader 组件封装图片上传、拖拽、粘贴逻辑 - 重构 UrlToQrCodeSection 状态提升到父组件 - 重构 QrCodeToUrlSection 通过回调传递解析结果 - 更新主页面 index.tsx 集中管理所有状态 - 为 QrCodePreview 和 ImageUploader 添加单元测试 (23 个用例)
2026-05-20 21:59:57 +08:00
parent 9c03c585a8
commit 2870e01610
8 changed files with 865 additions and 241 deletions
@@ -0,0 +1,92 @@
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
+import { render, screen, fireEvent } from '@testing-library/react';
+import QrCodePreview from '@/components/QrCodePreview';
+
+describe('QrCodePreview 组件', () => {
+  const mockOnDownload = vi.fn();
+  const mockOnCopy = vi.fn();
+
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  afterEach(() => {
+    vi.restoreAllMocks();
+    vi.resetAllMocks();
+  });
+
+  describe('渲染测试', () => {
+    it('当 qrCodeDataUrl 为空时应显示占位文本', () => {
+      render(<QrCodePreview qrCodeDataUrl="" onDownload={mockOnDownload} onCopy={mockOnCopy} />);
+      expect(screen.getByText('qrCode:qrCodeWillShow')).toBeInTheDocument();
+    });
+
+    it('当 qrCodeDataUrl 有值时应显示二维码图片', () => {
+      const testDataUrl = 'data:image/png;base64,test123';
+      render(
+        <QrCodePreview
+          qrCodeDataUrl={testDataUrl}
+          onDownload={mockOnDownload}
+          onCopy={mockOnCopy}
+        />,
+      );
+      const img = screen.getByAltText('QR Code');
+      expect(img).toBeInTheDocument();
+      expect(img).toHaveAttribute('src', testDataUrl);
+    });
+
+    it('当 qrCodeDataUrl 有值时应显示下载按钮', () => {
+      render(
+        <QrCodePreview
+          qrCodeDataUrl="data:image/png;base64,test"
+          onDownload={mockOnDownload}
+          onCopy={mockOnCopy}
+        />,
+      );
+      expect(screen.getByText('qrCode:downloadButton')).toBeInTheDocument();
+    });
+
+    it('当 qrCodeDataUrl 有值时应显示复制按钮', () => {
+      render(
+        <QrCodePreview
+          qrCodeDataUrl="data:image/png;base64,test"
+          onDownload={mockOnDownload}
+          onCopy={mockOnCopy}
+        />,
+      );
+      expect(screen.getByText('qrCode:copyQrButton')).toBeInTheDocument();
+    });
+
+    it('当 qrCodeDataUrl 为空时不应显示操作按钮', () => {
+      render(<QrCodePreview qrCodeDataUrl="" onDownload={mockOnDownload} onCopy={mockOnCopy} />);
+      expect(screen.queryByText('qrCode:downloadButton')).not.toBeInTheDocument();
+      expect(screen.queryByText('qrCode:copyQrButton')).not.toBeInTheDocument();
+    });
+  });
+
+  describe('交互测试', () => {
+    it('点击下载按钮时应调用 onDownload 回调', () => {
+      render(
+        <QrCodePreview
+          qrCodeDataUrl="data:image/png;base64,test"
+          onDownload={mockOnDownload}
+          onCopy={mockOnCopy}
+        />,
+      );
+      fireEvent.click(screen.getByText('qrCode:downloadButton'));
+      expect(mockOnDownload).toHaveBeenCalledTimes(1);
+    });
+
+    it('点击复制按钮时应调用 onCopy 回调', () => {
+      render(
+        <QrCodePreview
+          qrCodeDataUrl="data:image/png;base64,test"
+          onDownload={mockOnDownload}
+          onCopy={mockOnCopy}
+        />,
+      );
+      fireEvent.click(screen.getByText('qrCode:copyQrButton'));
+      expect(mockOnCopy).toHaveBeenCalledTimes(1);
+    });
+  });
+});