{"id":38664,"date":"2023-11-17T09:08:50","date_gmt":"2023-05-27T22:07:56","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/react-samples%e8%bf%99%e4%b8%aa%e7%bd%91%e7%ab%99%e5%9c%a8%e5%ae%9e%e8%b7%b5%e7%bc%96%e5%86%99%e6%b5%8b%e8%af%95%e4%bb%a3%e7%a0%81%e6%96%b9%e9%9d%a2%e9%9d%9e%e5%b8%b8%e6%9c%89%e5%b8%ae%e5%8a%a9\/"},"modified":"2024-05-04T09:29:06","modified_gmt":"2024-05-04T01:29:06","slug":"react-samples%e8%bf%99%e4%b8%aa%e7%bd%91%e7%ab%99%e5%9c%a8%e5%ae%9e%e8%b7%b5%e7%bc%96%e5%86%99%e6%b5%8b%e8%af%95%e4%bb%a3%e7%a0%81%e6%96%b9%e9%9d%a2%e9%9d%9e%e5%b8%b8%e6%9c%89%e5%b8%ae%e5%8a%a9","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/react-samples%e8%bf%99%e4%b8%aa%e7%bd%91%e7%ab%99%e5%9c%a8%e5%ae%9e%e8%b7%b5%e7%bc%96%e5%86%99%e6%b5%8b%e8%af%95%e4%bb%a3%e7%a0%81%e6%96%b9%e9%9d%a2%e9%9d%9e%e5%b8%b8%e6%9c%89%e5%b8%ae%e5%8a%a9\/","title":{"rendered":"React Samples\u8fd9\u4e2a\u7f51\u7ad9\u5728\u5b9e\u8df5\u7f16\u5199\u6d4b\u8bd5\u4ee3\u7801\u65b9\u9762\u975e\u5e38\u6709\u5e2e\u52a9"},"content":{"rendered":"

\u4f60\u662f\u5426\u4e86\u89e3\u4ee5\u4e0b\u7684\u7f51\u7ad9\uff1f<\/p>\n

 <\/p>\n

\u6211\u8bb0\u5f97\u6211\u5927\u7ea6\u57282023\u5e74\u7684\u67d0\u4e2a\u65f6\u5019\u53d1\u73b0\u4e86\u8fd9\u4e2a\u3002
\n\u6211\u4e0d\u77e5\u9053\u5927\u5bb6\u662f\u901a\u8fc7\u600e\u6837\u7684\u9014\u5f84\u6765\u516c\u5f00\u7684\uff0c\u4f46\u662f\u5927\u5bb6\u90fd\u5728\u81ea\u5df1\u521b\u5efa\u7684\u7f51\u7ad9\u4e0a\u53d1\u5e03\u4e86\u4e00\u4e2a\u7b80\u4ecb\u9875\u9762\u548cGithub\u7684\u5b58\u50a8\u5e93\u4fe1\u606f\u3002<\/p>\n

\u62ff\u51fa\u4e86React\u793a\u4f8b<\/h2>\n

\u5f53\u4e2a\u4eba\u60f3\u8981\u52a0\u6df1\u5bf9\u4e8e\u6d4b\u8bd5\u4ee3\u7801\u7684\u7406\u89e3\u6216\u8005\u5728\u5de5\u4f5c\u73b0\u573a\u9700\u8981\u7f16\u5199\u4ee3\u7801\u65f6\uff0c\u4f46\u662f\u9879\u76ee\u89c4\u6a21\u592a\u5927\u800c\u60f3\u8981\u5728\u5c0f\u89c4\u6a21\u5e94\u7528\u7a0b\u5e8f\u4e0a\u8fdb\u884c\u6d4b\u8bd5\u65f6\uff0c\u6211\u8ba4\u4e3aReact Samples\u53ef\u80fd\u4f1a\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n

\u867d\u7136\u6709\u5f88\u591a\u5185\u5bb9\u53ef\u4ee5\u4f5c\u4e3a\u5e94\u7528\u7a0b\u5e8f\u4ee3\u7801\u7684\u53c2\u8003\uff0c\u4f46\u8fd9\u6b21\uff0c\u6211\u89c9\u5f97\u5982\u679c\u501f\u7528\u8fd9\u4e2a\u7f51\u7ad9\u4e0a\u7684\u5e94\u7528\u7a0b\u5e8f\u4ee3\u7801\uff0c\u5c31\u80fd\u591f\u987a\u5229\u5730\u5b66\u4e60\u6d4b\u8bd5\u4ee3\u7801\uff0c\u6240\u4ee5\u6211\u5728\u8fd9\u91cc\u505a\u4e86\u603b\u7ed3\u3002<\/p>\n

React Testing Library\u548c\u6d4b\u8bd5<\/h2>\n

 <\/p>\n

\u8fd9\u662f\u4e00\u4e2a\u5728React\u6d4b\u8bd5\u5b9e\u65bd\u4e2d\u51fa\u73b0\u7684\u5e93\u3002<\/p>\n

\u5c06\u7528\u6237\u5728\u9875\u9762\u4e0a\u5b9e\u9645\u6267\u884c\u7684\u64cd\u4f5c\u8f6c\u5316\u4e3a\u4ee3\u7801\uff0c\u4ee5\u786e\u4fdd\u529f\u80fd\u7684\u4fdd\u8bc1\uff0c\u4e5f\u53ef\u4ee5\u89c6\u4e3a\u4e00\u4e2a\u6709\u5e2e\u52a9\u7684\u5e93\u3002\uff08\u4ee5\u4e0b\u5185\u5bb9\u6458\u81ea\u4e0a\u8ff0\u94fe\u63a5\u3002\uff09<\/p>\n

\u5b83\u6240\u63d0\u4f9b\u7684\u4e3b\u8981\u529f\u80fd\u5305\u62ec\u67e5\u8be2 DOM \u8282\u70b9\uff0c\u4ee5\u7c7b\u4f3c\u4e8e\u7528\u6237\u5728\u9875\u9762\u4e0a\u67e5\u627e\u5143\u7d20\u7684\u65b9\u5f0f\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u8be5\u5e93\u5e2e\u52a9\u786e\u4fdd\u60a8\u7684\u6d4b\u8bd5\u80fd\u591f\u8ba9\u60a8\u5bf9\u5e94\u7528\u7a0b\u5e8f\u5728\u771f\u5b9e\u7528\u6237\u4f7f\u7528\u65f6\u662f\u5426\u6b63\u5e38\u5de5\u4f5c\u5145\u6ee1\u4fe1\u5fc3\u3002<\/p><\/blockquote>\n

\u6d4b\u8bd5\u4ee3\u7801\u5bf9\u4e8e\u7406\u89e3\u89c4\u683c\u4e5f\u5f88\u6709\u5e2e\u52a9\u3002
\n\u867d\u7136\u4e0e\u5b9e\u73b0\u672c\u8eab\u6ca1\u6709\u76f4\u63a5\u5173\u7cfb\uff0c\u4f46\u662f\u67e5\u770b\u6d4b\u8bd5\u4ee3\u7801\u6709\u52a9\u4e8e\u52a0\u6df1\u5bf9\u89c4\u683c\u7684\u7406\u89e3\u3002
\n\u89c4\u683c\u53ef\u4ee5\u901a\u8fc7\u6587\u6863\uff08\u7ef4\u57fa\uff1f\uff09\u6216Excel\u6765\u7406\u89e3\uff0c\u4f46\u901a\u8fc7\u68c0\u67e5\u6d4b\u8bd5\u4ee3\u7801\uff0c\u53ef\u4ee5\u66f4\u5177\u4f53\u5730\u770b\u5230\u5728\u4ec0\u4e48\u60c5\u51b5\u4e0b\u4f1a\u51fa\u73b0\u4ec0\u4e48\u884c\u4e3a\u3002
\n\u867d\u7136\u6211\u4e0d\u5b8c\u5168\u4f9d\u8d56\u6d4b\u8bd5\u4ee3\u7801\uff0c\u4f46\u6211\u8ba4\u4e3a\u5b83\u6bd4\u53ef\u80fd\u51fa\u73b0\u7684\u6587\u6863\u201c\u66f4\u65b0\u9057\u6f0f\u201d\u66f4\u53ef\u9760\u3002<\/div>\n

\u4f7f\u7528jest\u8fdb\u884c\u6d4b\u8bd5\u5b9e\u65bd\u3002<\/h4>\n

\u4e00\u65e6\u5b9e\u73b0\u4e86\u6d4b\u8bd5\u4ee3\u7801\uff0c\u5c31\u4e00\u5b9a\u4f1a\u4f7f\u7528\u5230\u7684\u5e93\u3002<\/p>\n

 <\/p>\n

\u501f\u7528 Jest \u6838\u5fc3\u56e2\u961f\u7684\u8bdd\u3002<\/p>\n

Jest\u662f\u4e00\u4e2a\u4e3a\u4e86\u4fdd\u8bc1JavaScript\u4ee3\u7801\u5e93\u7684\u6b63\u786e\u6027\u800c\u8bbe\u8ba1\u7684JavaScript\u6d4b\u8bd5\u6846\u67b6\u3002\u5b83\u62e5\u6709\u53cb\u597d\u6613\u7528\u4e14\u529f\u80fd\u4e30\u5bcc\u7684API\uff0c\u53ef\u4ee5\u8f7b\u677e\u7f16\u5199\u6d4b\u8bd5\u5e76\u5feb\u901f\u83b7\u5f97\u7ed3\u679c\u3002Jest\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u6587\u6863\uff0c\u5e76\u4e14\u51e0\u4e4e\u4e0d\u9700\u8981\u914d\u7f6e\u3002\u6b64\u5916\uff0c\u8fd8\u53ef\u4ee5\u6839\u636e\u9700\u6c42\u8fdb\u884c\u6269\u5c55\u3002Jest\u8ba9\u6d4b\u8bd5\u53d8\u5f97\u6709\u8da3\u3002<\/p><\/blockquote>\n

\u8fdb\u884c\u6d4b\u8bd5\u6240\u9700\u8981\u7684\u5e93<\/h4>\n

\u4f7f\u7528create-react-app\u521b\u5efa\u9879\u76ee\u65f6\uff0cpackage.json\u4e2d\u5df2\u7ecf\u9884\u8bbe\u4e86@testing-library\/XXX\u5e93\uff0c\u8be5\u5e93\u662f\u4e3a\u4e86\u5b9e\u73b0\u6d4b\u8bd5\u4ee3\u7801\u6240\u9700\u8981\u7684\u3002<\/p>\n

{<\/span>\r\n  \"name\"<\/span>:<\/span> \"airbnb-clone\"<\/span>,<\/span>\r\n  \"version\"<\/span>:<\/span> \"0.1.0\"<\/span>,<\/span>\r\n  \"private\"<\/span>:<\/span> true<\/span>,<\/span>\r\n  \"dependencies\"<\/span>:<\/span> {<\/span>\r\n    \"@testing-library\/jest-dom\"<\/span>:<\/span> \"^5.16.5\"<\/span>,<\/span>\r\n    \"@testing-library\/react\"<\/span>:<\/span> \"^13.4.0\"<\/span>,<\/span>\r\n    \"@testing-library\/user-event\"<\/span>:<\/span> \"^13.5.0\"<\/span>,<\/span>\r\n    \"react\"<\/span>:<\/span> \"^18.2.0\"<\/span>,<\/span>\r\n    \"react-dom\"<\/span>:<\/span> \"^18.2.0\"<\/span>,<\/span>\r\n    \"react-scripts\"<\/span>:<\/span> \"5.0.1\"<\/span>,<\/span>\r\n    \"web-vitals\"<\/span>:<\/span> \"^2.1.4\"<\/span>\r\n  },<\/span>\r\n\/*\u3053\u306e\u3042\u305f\u308a\u306f\u7701\u7565*\/<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u6211\u6765\u5199\u4e00\u4e0b\u6d4b\u8bd5<\/h2>\n
\u6211\u5c1d\u8bd5\u7528\u4ee5\u4e0b\u7684\u4e09\u4e2a\u6b65\u9aa4\u7f16\u5199\u6d4b\u8bd5\u4ee3\u7801\u3002<\/p>\n
    \n
  • \n
      \u8868\u793a\u6587\u5b57\u5217\u306e\u30c6\u30b9\u30c8<\/ul>\n<\/li>\n<\/ul>\n
       <\/p>\n
        \n
      • \n
          Event\u3092\u7528\u3044\u305f\u30c6\u30b9\u30c8<\/ul>\n<\/li>\n<\/ul>\n
           <\/p>\n
            TODO\u30a2\u30d7\u30ea\u306e\u30c6\u30b9\u30c8<\/ul>\n
            \u4f60\u5b9e\u65bd\u4e86\u6d4b\u8bd5\u4ee3\u7801\uff0c\u786e\u5b9e\u8fdb\u884c\u4e86\u9a8c\u8bc1\u5417\uff1f\u6709\u6ca1\u6709\u9057\u6f0f\uff1f
            \n\u6709\u65f6\u5019\u601d\u8003\u8fd9\u4e2a\u95ee\u9898\u5f88\u56f0\u96be\uff0c\u4f46\u5982\u679c\u4e00\u5f00\u59cb\u5c31\u8003\u8651\u8fd9\u4e2a\u95ee\u9898\uff0c\u8fdb\u5c55\u53ef\u80fd\u4f1a\u5f88\u6162\u3002
            \n\u4f46\u9996\u5148\u8fd8\u662f\u8bd5\u7740\u5199\u4e0b\u6765\uff0c\u5373\u4f7f\u53ea\u662f\u8fdb\u5165\u5230\u89c9\u5f97\u53ef\u80fd\u5df2\u7ecf\u80fd\u591f\u6d4b\u8bd5\u8fd9\u4e2a\u884c\u4e3a\u7684\u9636\u6bb5\uff0c\u8fd9\u4e5f\u7b97\u662f\u4e00\u79cd\u8fdb\u6b65\u5427\uff01
            \n\u8ba9\u6211\u4eec\u8f7b\u677e\u5730\u5f00\u59cb\u5427\uff01<\/div>\n
            \u6587\u5b57\u5217\u6d4b\u8bd5<\/h4>\n
            \u6211\u8ba4\u4e3a\u8fd9\u4e2a\u5185\u5bb9\u5728\u6d4b\u8bd5\u4ee3\u7801\u4e2d\u5c5e\u4e8e\u521d\u7ea7\u90e8\u5206\uff0c\u53ef\u4ee5\u6bd4\u8f83\u76f4\u89c2\u5730\u8fdb\u884c\u5b9e\u73b0\u3002
            \n\u542f\u52a8\u5e94\u7528\u7a0b\u5e8f\uff0c\u6d4b\u8bd5\u7528\u4f8b\u662f\u5728\u201c\u5f53\u5c4f\u5e55\u4e0a\u663e\u793a\u4e00\u5b9a\u6587\u5b57\u5185\u5bb9\u65f6\uff0c\u671f\u671b\u8be5\u6587\u5b57\u88ab\u6b63\u786e\u663e\u793a\u201d\u7684\u60c5\u51b5\u4e0b\u3002<\/p>\n
             <\/p>\n
            \"image.png\"<\/div>\n
            \u6211\u5c06\u4e0a\u8ff0\u753b\u9762\u7684\u5e94\u7528\u7a0b\u5e8f\u4ee3\u7801\u548c\u6d4b\u8bd5\u4ee3\u7801\u6392\u5217\u5728\u4e00\u8d77\u3002<\/p>\n
            import<\/span> React<\/span> from<\/span> \"<\/span>react<\/span>\"<\/span>;<\/span>\r\nimport<\/span> photoGrid<\/span> from<\/span> \"<\/span>..\/img\/photoGrid.png<\/span>\"<\/span>\r\n\r\nexport<\/span> default<\/span> function<\/span> Hero<\/span>()<\/span> {<\/span>\r\n    return <\/span>(<\/span>\r\n        <<\/span>section<\/span> className<\/span>=<\/span>\"hero\"<\/span>><\/span>\r\n            <<\/span>img<\/span> src<\/span>=<\/span>{<\/span>photoGrid<\/span>}<\/span> className<\/span>=<\/span>\"hero--photo\"<\/span> alt<\/span>=<\/span>\"Photo Grid\"<\/span>><\/<\/span>img<\/span>><\/span>\r\n            <<\/span>h1<\/span> className<\/span>=<\/span>\"hero--title\"<\/span>><\/span>Online Experiences<\/<\/span>h1<\/span>><\/span>\r\n            <<\/span>p<\/span> className<\/span>=<\/span>\"hero--subtitle\"<\/span>><\/span>Join unique interactive activities led by one-of-a-kind hosts\u2014all without leaving home.<\/<\/span>p<\/span>><\/span>\r\n        <\/<\/span>section<\/span>><\/span>\r\n    )<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
            import<\/span> {<\/span> render<\/span>,<\/span> screen<\/span> }<\/span> from<\/span> '<\/span>@testing-library\/react<\/span>'<\/span>;<\/span>\r\nimport<\/span> Hero<\/span> from<\/span> '<\/span>.\/Hero<\/span>'<\/span>;<\/span>\r\n\r\ntest<\/span>(<\/span>'<\/span>Hero<\/span>'<\/span>,<\/span> ()<\/span> =><\/span> {<\/span>\r\n    render<\/span>(<<\/span>Hero<\/span> \/>);<\/span>\r\n    screen<\/span>.<\/span>debug<\/span>();<\/span> \/\/ \u203b1<\/span>\r\n    const<\/span> displayedImage<\/span> =<\/span> document<\/span>.<\/span>querySelector<\/span>(<\/span>\"<\/span>img<\/span>\"<\/span>);<\/span>\r\n    expect<\/span>(<\/span>displayedImage<\/span>.<\/span>src<\/span>).<\/span>toContain<\/span>(<\/span>\"<\/span>photoGrid<\/span>\"<\/span>);<\/span> \/\/ \u203b2<\/span>\r\n    const<\/span> linkElement<\/span> =<\/span> screen<\/span>.<\/span>getByText<\/span>(<\/span>\/Online Experiences\/i<\/span>);<\/span>\r\n    expect<\/span>(<\/span>linkElement<\/span>).<\/span>toBeInTheDocument<\/span>();<\/span> \/\/ \u203b3<\/span>\r\n});<\/span>\r\n<\/code><\/pre>\n
            \u203b1 screen.debug()\uff1a\u663e\u793a\u6267\u884c\u65f6\u7684DOM\u3002<\/p>\n
            \u63a7\u5236\u53f0\u5185\u5bb9<\/p>\n
            \n
            \"Photo<\/p>\n
            \u5728\u7ebf\u4f53\u9a8c<\/h1>\n
            \u53c2\u52a0\u7531\u72ec\u7279\u4e3b\u6301\u4eba\u5e26\u9886\u7684\u72ec\u7279\u4e92\u52a8\u6d3b\u52a8\uff0c\u800c\u4e0d\u7528\u79bb\u5f00\u5bb6\u3002<\/p>\n<\/section>\n<\/div>\n
             <\/p>\n<\/details>\n
            \u203b2 \u6211\u4f7f\u7528\u4e86\u8fd9\u91cc\u63d0\u4f9b\u7684\u65b9\u6cd5\u6765\u8fdb\u884c\u6709\u5173\u56fe\u50cf\u6587\u4ef6\u7684\u6d4b\u8bd5\u5b9e\u65bd\u3002<\/p>\n
            \u5982\u679c\u5728`expect(linkElement).toBeInTheDocument();` \u9032\u884c\u6e2c\u8a66\u6642\u767c\u751f\u932f\u8aa4\uff0c\u8868\u793a\u4f60\u6240\u7de8\u5beb\u7684\u6e2c\u8a66\u7a0b\u5f0f\u78bc\u7121\u6cd5\u6b63\u5e38\u904b\u4f5c\uff0c\u6703\u986f\u793a\u4ee5\u4e0b\u932f\u8aa4\u8a0a\u606f\u3002<\/p>\n
            TypeError: expect(...).toBeInTheDocument is not a function\r\n<\/code><\/pre>\n
            \u7531\u4e8e\u7f3a\u5c11\u5bfc\u5165\u8bed\u53e5\uff0c\u5bfc\u81f4\u53d1\u751f\u9519\u8bef\u3002
            \n\u5982\u679c\u5728\u4f7f\u7528expect(…).toBeInTheDocument()\u7684\u6587\u4ef6\u4e2d\u6dfb\u52a0import ‘@testing-library\/jest-dom\/extend-expect’;\uff0c\u95ee\u9898\u5c06\u5f97\u5230\u89e3\u51b3\u3002
            \n\u4f46\u662f\uff0c\u7531\u4e8e\u5728\u6bcf\u4e2a\u6d4b\u8bd5\u7528\u4f8b\u90fd\u9700\u8981\u5904\u7406\u671f\u671b\u503c\u76f8\u5173\u7684\u64cd\u4f5c\uff0c\u6240\u4ee5\u5fc5\u987b\u5728\u6240\u6709\u6587\u4ef6\u4e2d\u90fd\u6dfb\u52a0\u8fd9\u4e2a\u5bfc\u5165\u8bed\u53e5\u3002\u3002\u3002<\/p>\n
            \u5728src\u6587\u4ef6\u5939\u4e2d\u521b\u5efa\u4e00\u4e2a\u540d\u4e3asetupTests.js\u7684\u6587\u4ef6\uff0c\u5e76\u5728\u5176\u4e2d\u5b9a\u4e49import\u8bed\u53e5\u3002\u8fd9\u6837\u4e00\u6765\uff0c\u6bcf\u4e2a\u6587\u4ef6\u90fd\u4e0d\u9700\u8981\u518d\u5199import\u8bed\u53e5\u4e86\u3002<\/p>\n
            import<\/span> '<\/span>@testing-library\/jest-dom\/extend-expect<\/span>'<\/span>;<\/span>\r\n<\/code><\/pre>\n
            \n
            \u4f7f\u7528Event\u8fdb\u884c\u6d4b\u8bd5<\/h4>\n
            \u7a81\u7136\u6e2c\u8a66ToDo\u61c9\u7528\u7a0b\u5f0f\uff1f\u9019\u4e0d\u96e3\u55ce\uff1f\u5982\u679c\u89ba\u5f97\u56f0\u96e3\uff0c\u5efa\u8b70\u53ea\u5be6\u73feClick\u4e8b\u4ef6\u548cuseState\u529f\u80fd\uff0c\u4f8b\u5982\u8a08\u6578\u5668\u7b49\u3002\u9019\u500b\u662f\u6211\u5275\u5efa\u7684\uff0c\u8207React\u793a\u4f8b\u4ee3\u78bc\u7121\u95dc\u3002<\/p>\n
            import<\/span> {<\/span> useState<\/span> }<\/span> from<\/span> \"<\/span>react<\/span>\"<\/span>\r\n\r\nexport<\/span> default<\/span> function<\/span> Counter<\/span>()<\/span> {<\/span>\r\n    const<\/span> [<\/span>count<\/span>,<\/span> setCount<\/span>]<\/span> =<\/span> useState<\/span>(<\/span>0<\/span>)<\/span>\r\n    const<\/span> increment<\/span> =<\/span> ()<\/span> =><\/span> {<\/span>\r\n        setCount<\/span>(<\/span>count<\/span> =><\/span> count<\/span> +<\/span> 1<\/span>)<\/span>\r\n    }<\/span>\r\n\r\n    return <\/span>(<\/span>\r\n        <><\/span>\r\n            {<\/span>count<\/span>}<\/span>\r\n            <<\/span>button<\/span> onClick<\/span>=<\/span>{<\/span>increment<\/span>}<\/span>><\/span>Increment<\/<\/span>button<\/span>><\/span>\r\n        <\/><\/span>\r\n    )<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
            import<\/span> {<\/span> render<\/span>,<\/span> screen<\/span>,<\/span> fireEvent<\/span> }<\/span> from<\/span> '<\/span>@testing-library\/react<\/span>'<\/span>;<\/span>\r\nimport<\/span> Counter<\/span> from<\/span> '<\/span>.\/Counter<\/span>'<\/span>;<\/span>\r\n\r\ntest<\/span>(<\/span>'<\/span>Counter<\/span>'<\/span>,<\/span> ()<\/span> =><\/span> {<\/span>\r\n    render<\/span>(<<\/span>Counter<\/span> \/>);<\/span>\r\n    const<\/span> count<\/span> =<\/span> screen<\/span>.<\/span>getByText<\/span>(<\/span>\/0\/i<\/span>);<\/span>\r\n    \/\/ \u521d\u671f\u8868\u793a\u3067\u306f0\u3067\u3042\u308b\u3053\u3068<\/span>\r\n    expect<\/span>(<\/span>count<\/span>).<\/span>toBeInTheDocument<\/span>();<\/span>\r\n    const<\/span> buttonElement<\/span> =<\/span> screen<\/span>.<\/span>getByRole<\/span>(<\/span>\"<\/span>button<\/span>\"<\/span>);<\/span>\r\n    fireEvent<\/span>.<\/span>click<\/span>(<\/span>buttonElement<\/span>)<\/span>\r\n    const<\/span> countUpdate<\/span> =<\/span> screen<\/span>.<\/span>getByText<\/span>(<\/span>\/1\/i<\/span>);<\/span>\r\n    \/\/ 1\u306b\u66f4\u65b0\u3055\u308c\u308b\u3053\u3068<\/span>\r\n    expect<\/span>(<\/span>countUpdate<\/span>).<\/span>toBeInTheDocument<\/span>();<\/span>\r\n});<\/span>\r\n<\/code><\/pre>\n
            \n
            \u6d4b\u8bd5\u5f85\u529e\u4e8b\u9879\u5e94\u7528<\/h4>\n
            \u6211\u4f7f\u7528\u4e86\u4ee5\u4e0b\u6587\u7ae0\u4e2d\u63d0\u5230\u7684\u5e94\u7528\u7a0b\u5e8f\u4ee3\u7801\u3002<\/p>\n
             <\/p>\n
            \u793a\u5a01\u6d3b\u52a8<\/p>\n
             <\/p>\n
            \u5728Next.js\u4e2d
            \n\u672c\u6b21\u4f7f\u7528\u7684TODO\u5e94\u7528\u7a0b\u5e8f\u4e0d\u662f\u7528React\uff0c\u800c\u662f\u7528Next.js\u5236\u4f5c\u7684\u3002
            \n\u901a\u8fc7create-react-app\u521b\u5efa\u7684\u5e94\u7528\u7a0b\u5e8f\u9ed8\u8ba4\u5b89\u88c5\u4e86@testing-library\uff0c\u4f46\u5728Next.js\u4e2d\u6709\u6240\u4e0d\u540c\uff0c\u9700\u8981\u4ece\u8bbe\u7f6e\u4e2d\u8fdb\u884c\u5b89\u88c5\u3002<\/p>\n
             <\/p>\n
            \u53c2\u8003\u4ee5\u4e0b\u5b58\u50a8\u5e93\u7684package.json\u6765\u786e\u8ba4\u6240\u9700\u7684\u5e93\u4fe1\u606f\u3002<\/p>\n
             <\/p>\n
            npm i -D @testing-library\/jest-dom @testing-library\/react @testing-library\/user-event jest jest-environment-jsdom\r\n<\/code><\/pre>\n
            const<\/span> nextJest<\/span> =<\/span> require<\/span>(<\/span>'<\/span>next\/jest<\/span>'<\/span>)<\/span>\r\n\r\nconst<\/span> createJestConfig<\/span> =<\/span> nextJest<\/span>({<\/span>\r\n    \/\/ Provide the path to your Next.js app to load next.config.js and .env files in your test environment<\/span>\r\n    dir<\/span>:<\/span> '<\/span>.\/<\/span>'<\/span>,<\/span>\r\n})<\/span>\r\n\r\n\/\/ Add any custom config to be passed to Jest<\/span>\r\nconst<\/span> customJestConfig<\/span> =<\/span> {<\/span>\r\n    setupFilesAfterEnv<\/span>:<\/span> [<\/span>'<\/span><rootDir>\/jest.setup.js<\/span>'<\/span>],<\/span>\r\n    testEnvironment<\/span>:<\/span> '<\/span>jest-environment-jsdom<\/span>'<\/span>,<\/span>\r\n}<\/span>\r\n\r\n\/\/ createJestConfig is exported this way to ensure that next\/jest can load the Next.js config which is async<\/span>\r\nmodule<\/span>.<\/span>exports<\/span> =<\/span> createJestConfig<\/span>(<\/span>customJestConfig<\/span>)<\/span>\r\n<\/code><\/pre>\n
            \/\/ Optional: configure or set up a testing framework before each test.<\/span>\r\n\/\/ If you delete this file, remove `setupFilesAfterEnv` from `jest.config.js`<\/span>\r\n\r\n\/\/ Used for __tests__\/testing-library.js<\/span>\r\n\/\/ Learn more: https:\/\/github.com\/testing-library\/jest-dom<\/span>\r\nimport<\/span> '<\/span>@testing-library\/jest-dom\/extend-expect<\/span>'<\/span>\r\n<\/code><\/pre>\n
            \u4ee5\u4e0b\u662f\u5173\u4e8e\u4e24\u4e2a\u6848\u4f8b\u7684\u6d4b\u8bd5\u4ee3\u7801\u4ecb\u7ecd\u3002<\/p>\n
              \n
            • \n
                \u30c6\u30ad\u30b9\u30c8\u30dc\u30c3\u30af\u30b9\u306b\u5024\u3092\u5165\u529b\u3057\u3066\u3001\u30bf\u30b9\u30af\u3092\u8ffd\u52a0<\/ul>\n<\/li>\n<\/ul>\n
                 <\/p>\n
                  \u8ffd\u52a0\u3057\u305f\u30bf\u30b9\u30af\u306b\u5bfe\u3057\u3066\u30c1\u30a7\u30c3\u30af\u3092\u3064\u3051\u308b\/\u5916\u3059<\/ul>\n
                  \u6211\u7684\u5176\u4ed6\u6d4b\u8bd5\u4ee3\u7801\u5df2\u7ecf\u5728\u4ee5\u4e0b\u5b58\u50a8\u5e93\u4e2d\u516c\u5f00\u3002<\/p>\n
                   <\/p>\n
                  \u5728\u6587\u672c\u6846\u4e2d\u8f93\u5165\u6570\u503c\uff0c\u5e76\u6dfb\u52a0\u4efb\u52a1\u3002<\/p>\n
                  \u5e94\u7528\u7a0b\u5e8f\u4ee3\u7801\u5982\u4e0b\u3002<\/p>\n
                   <\/p>\n
                  import<\/span> Home<\/span> from<\/span> '<\/span>@\/app\/page<\/span>'<\/span>\r\nimport<\/span> {<\/span> fireEvent<\/span>,<\/span> render<\/span>,<\/span> screen<\/span> }<\/span> from<\/span> '<\/span>@testing-library\/react<\/span>'<\/span>\r\n\r\ndescribe<\/span>(<\/span>'<\/span>Home<\/span>'<\/span>,<\/span> ()<\/span> =><\/span> {<\/span>\r\n    it<\/span>(<\/span>'<\/span>All\u30bf\u30d6\u3092\u8868\u793a\u3057\u3066\u3044\u308b\u3068\u304d\u3001\u30bf\u30b9\u30af\u8ffd\u52a0\u304c\u3067\u304d\u308b\u3053\u3068<\/span>'<\/span>,<\/span> ()<\/span> =><\/span> {<\/span>\r\n        render<\/span>(<<\/span>Home<\/span> \/>)<\/span>\r\n\r\n        const<\/span> inputElement<\/span> =<\/span> screen<\/span>.<\/span>getByPlaceholderText<\/span>(<\/span>\/add details\/i<\/span>)<\/span> as<\/span> HTMLInputElement<\/span>;<\/span>\r\n\r\n        fireEvent<\/span>.<\/span>change<\/span>(<\/span>inputElement<\/span>,<\/span> {<\/span>\r\n            target<\/span>:<\/span> {<\/span> value<\/span>:<\/span> '<\/span>Learn Testing Library<\/span>'<\/span> },<\/span>\r\n        });<\/span>\r\n        \/\/ \u30c6\u30ad\u30b9\u30c8\u30dc\u30c3\u30af\u30b9\u306e\u5024\u304c\u66f4\u65b0\u3067\u304d\u308b\u3053\u3068<\/span>\r\n        expect<\/span>(<\/span>inputElement<\/span>.<\/span>value<\/span>).<\/span>toBe<\/span>(<\/span>'<\/span>Learn Testing Library<\/span>'<\/span>);<\/span>\r\n\r\n        const<\/span> onButtonElement<\/span> =<\/span> screen<\/span>.<\/span>getByRole<\/span>(<\/span>'<\/span>button<\/span>'<\/span>,<\/span> {<\/span> name<\/span>:<\/span> '<\/span>Add<\/span>'<\/span> });<\/span>\r\n        fireEvent<\/span>.<\/span>click<\/span>(<\/span>onButtonElement<\/span>);<\/span>\r\n        \/\/\u30bf\u30b9\u30af\u304c\u8ffd\u52a0\u304c\u884c\u3048\u308b\u3053\u3068<\/span>\r\n        const<\/span> helloTask<\/span> =<\/span> screen<\/span>.<\/span>getByText<\/span>(<\/span>'<\/span>Learn Testing Library<\/span>'<\/span>)<\/span>\r\n        expect<\/span>(<\/span>helloTask<\/span>).<\/span>toBeInTheDocument<\/span>();<\/span>\r\n\r\n    })<\/span>\r\n})<\/span>\r\n<\/code><\/pre>\n
                  \u4f7f\u7528fireEvent\u6765\u6267\u884c\u4e0e\u754c\u9762\u76f8\u5173\u7684\u4e8b\u4ef6\uff0c\u4f46\u4f3c\u4e4e\u6709\u65f6\u5019\u8fd8\u53ef\u4ee5\u4f7f\u7528userEvent\u3002\uff08\u672c\u6b21\u6ca1\u6709\u8fdb\u884c\u6b64\u9a8c\u8bc1\uff09<\/p>\n
                   <\/p>\n
                  \u5728\u8ffd\u52a0\u7684\u4efb\u52a1\u4e0a\u52fe\u9009\/\u53d6\u6d88\u52fe\u9009<\/p>\n
                  \u5e94\u7528\u7a0b\u5e8f\u4ee3\u7801\u5982\u4e0b\u3002<\/p>\n
                   <\/p>\n
                  import<\/span> Todo<\/span> from<\/span> '<\/span>@\/components\/Todo<\/span>'<\/span>\r\nimport<\/span> {<\/span> fireEvent<\/span>,<\/span> render<\/span>,<\/span> screen<\/span> }<\/span> from<\/span> '<\/span>@testing-library\/react<\/span>'<\/span>\r\n\r\ndescribe<\/span>(<\/span>'<\/span>Home<\/span>'<\/span>,<\/span> ()<\/span> =><\/span> {<\/span>\r\n\r\n    \/\/ \u89aa\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u95a2\u6570(deleteTodo)\u306e\u30e2\u30c3\u30af<\/span>\r\n    const<\/span> mockFunction<\/span> =<\/span> jest<\/span>.<\/span>fn<\/span>();<\/span>\r\n    \/\/ useState\u306e\u30e2\u30c3\u30af<\/span>\r\n    const<\/span> mockSetXXX<\/span> =<\/span> jest<\/span>.<\/span>fn<\/span>();<\/span>\r\n\r\n    jest<\/span>.<\/span>mock<\/span>(<\/span>'<\/span>..\/app\/page<\/span>'<\/span>,<\/span> ()<\/span> =><\/span> ({<\/span>\r\n        default<\/span>:<\/span> ()<\/span> =><\/span> ({<\/span>\r\n            deleteTodo<\/span>:<\/span> mockFunction<\/span>,<\/span>\r\n            setReload<\/span>:<\/span> mockSetXXX<\/span>,<\/span>\r\n        }),<\/span>\r\n    }));<\/span>\r\n\r\n    it<\/span>(<\/span>'<\/span>renders task and check task<\/span>'<\/span>,<\/span> ()<\/span> =><\/span> {<\/span>\r\n        \/\/ \u30b5\u30f3\u30d7\u30eb\u30bf\u30b9\u30af\u3092\u8a2d\u5b9a<\/span>\r\n        render<\/span>(<<\/span>Todo<\/span>\r\n            menuActive<\/span>=<\/span>{<\/span>'<\/span>all<\/span>'<\/span>}<\/span>\r\n            todo<\/span>=<\/span>{<\/span>{<\/span>\r\n                id<\/span>:<\/span> '<\/span>1<\/span>'<\/span>,<\/span>\r\n                text<\/span>:<\/span> '<\/span>Sample Task<\/span>'<\/span>,<\/span>\r\n                checked<\/span>:<\/span> false<\/span>\r\n            }<\/span>}<\/span>\r\n            reload<\/span>=<\/span>{<\/span>false<\/span>}<\/span>\r\n            setReload<\/span>=<\/span>{<\/span>mockSetXXX<\/span>}<\/span>\r\n            deleteTodo<\/span>=<\/span>{<\/span>mockFunction<\/span>}<\/span> \/><\/span>\r\n        )<\/span>\r\n\r\n        const<\/span> sampleTaskCheckBox<\/span> =<\/span> screen<\/span>.<\/span>getByRole<\/span>(<\/span>'<\/span>checkbox<\/span>'<\/span>)<\/span> as<\/span> HTMLInputElement<\/span>;<\/span>\r\n        \/\/ \u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u3092\u66f4\u65b0<\/span>\r\n        fireEvent<\/span>.<\/span>click<\/span>(<\/span>sampleTaskCheckBox<\/span>);<\/span>\r\n        expect<\/span>(<\/span>sampleTaskCheckBox<\/span>.<\/span>checked<\/span>).<\/span>toBe<\/span>(<\/span>true<\/span>);<\/span>\r\n        \/\/ \u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u3092\u66f4\u65b0<\/span>\r\n        fireEvent<\/span>.<\/span>click<\/span>(<\/span>sampleTaskCheckBox<\/span>);<\/span>\r\n        expect<\/span>(<\/span>sampleTaskCheckBox<\/span>.<\/span>checked<\/span>).<\/span>toBe<\/span>(<\/span>false<\/span>);<\/span>\r\n    })<\/span>\r\n})<\/span>\r\n<\/code><\/pre>\n
                  \u5728\u8fd9\u4e2a\u6837\u672c\u4e2d\uff0c\u53ef\u80fd\u6709\u4ee5\u4e0b\u7c7b\u4f3c\u7684\u6d4b\u8bd5\u6848\u4f8b\u3002<\/p>\n
                    \n
                  • \n
                      All\u304b\u3089Active\u3084Completed\u30bf\u30d6\u306b\u5207\u308a\u66ff\u3048\u305f\u3068\u304d\u306e\u8868\u793a\u5185\u5bb9<\/ul>\n<\/li>\n<\/ul>\n
                       <\/p>\n
                        \n
                      • \n
                          Completed\u30bf\u30d6\uff1a\u3054\u307f\u7bb1\u30a2\u30a4\u30b3\u30f3\u30af\u30ea\u30c3\u30af<\/ul>\n<\/li>\n<\/ul>\n
                           <\/p>\n
                            Completed\u30bf\u30d6\uff1adelete all\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af<\/ul>\n
                            \u5f53\u6d89\u53ca\u5230Todo\u5e94\u7528\u7684\u89c4\u6a21\uff0c\u5b9e\u65bd\u65b9\u6cd5\u53ef\u80fd\u4f1a\u4ea7\u751f\u5dee\u5f02\u65f6\uff0c\u6211\u8ba4\u4e3a\u6d4b\u8bd5\u4ee3\u7801\u7684\u7cbe\u5ea6\u5c31\u5f88\u91cd\u8981\u3002
                            \n\u6839\u636e\u5b9e\u65bd\u65b9\u6cd5\u7684\u4e0d\u540c\uff0c\u7f16\u5199\u6d4b\u8bd5\u4ee3\u7801\u7684\u96be\u6613\u7a0b\u5ea6\u4e5f\u53ef\u80fd\u4f1a\u6709\u6240\u53d8\u5316\u3002
                            \n\u5230\u5e95\u8be5\u5982\u4f55\u7f16\u5199\u5e94\u7528\u4ee3\u7801\u624d\u80fd\u5f97\u5230\u6613\u4e8e\u7f16\u5199\u7684\u6d4b\u8bd5\u4ee3\u7801\u5462\uff1f\u6211\u4eec\u5b9e\u65bd\u7684\u6d4b\u8bd5\u4ee3\u7801\u662f\u5426\u771f\u7684\u5408\u9002\u5462\uff1f
                            \n\u4e2a\u4eba\u5224\u65ad\u7684\u80fd\u529b\u662f\u6709\u9650\u7684\uff0c\u4e3a\u4e86\u521b\u5efa\u66f4\u7cbe\u826f\u7684\u6d4b\u8bd5\u5f62\u5f0f\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u5176\u4ed6\u4eba\u7684\u610f\u89c1\u3002
                            \n\u8fd9\u6b21\u4e3b\u8981\u662f\u5173\u4e8eReact Samples\u5e94\u7528\u4ee3\u7801\u4f5c\u4e3a\u7d20\u6750\uff0c\u4ee5\u4fbf\u4e8e\u7f16\u5199\u6d4b\u8bd5\u7684\u8ba8\u8bba\u3002
                            \n\u5f53\u7136\uff0c\u6211\u672c\u4eba\u4e5f\u5c3d\u91cf\u6309\u7167\u80fd\u591f\u9a8c\u8bc1\u6d4b\u8bd5\u4ee3\u7801\u7684\u5b9e\u73b0\u65b9\u5f0f\u8fdb\u884c\u4e86\u5b9e\u65bd\uff0c\u4f46\u4e5f\u6709\u53ef\u80fd\u5b58\u5728\u5199\u4f5c\u65f6\u4ea7\u751f\u4e86\u5176\u4ed6\u66f4\u597d\u7684\u65b9\u5f0f\u7684\u90e8\u5206\u3002<\/div>\n
                            Jest\u7684\u6d4b\u8bd5\u7f16\u5199\u65b9\u5f0f\u53ef\u4ee5\u53c2\u8003\u4ee5\u4e0b\u6587\u7ae0\u3002<\/p>\n
                             <\/p>\n
                            \u6b64\u5916\uff0c\u8fd9\u6b21\u7684\u793a\u4f8b\u53ea\u662f\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f\uff0c\u4ec5\u9650\u4e8e\u6839\u8def\u5f84\u3002\u4f46\u662f\uff0c\u4e5f\u53ef\u80fd\u5b58\u5728\u4ece\u67d0\u4e2a\u8def\u5f84\u8df3\u8f6c\u5230\u53e6\u4e00\u4e2a\u8def\u5f84\u7684\u60c5\u51b5\u3002<\/p>\n
                             <\/p>\n
                            \u603b\u7ed3<\/h3>\n
                            \u6211\u5011\u8a0e\u8ad6\u4e86\u6839\u64daReact Samples\u7db2\u7ad9\u4e0a\u7684\u4ee3\u78bc\u70ba\u57fa\u790e\u64b0\u5beb\u6e2c\u8a66\u4ee3\u78bc\u7684\u4e8b\u60c5\u3002<\/p>\n
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