{"id":3992,"date":"2024-02-05T10:26:10","date_gmt":"2024-02-05T02:26:10","guid":{"rendered":"http:\/\/www.ponybai.com\/?p=3992"},"modified":"2023-12-03T15:54:48","modified_gmt":"2023-12-03T07:54:48","slug":"%e6%b5%8b%e8%af%95-lightning-web-%e7%bb%84%e4%bb%b6","status":"publish","type":"post","link":"http:\/\/www.ponybai.com\/?p=3992","title":{"rendered":"\u6d4b\u8bd5 Lightning Web \u7ec4\u4ef6"},"content":{"rendered":"\n<p>Jest \u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u5177\u6709\u4e30\u5bcc\u7684\u529f\u80fd\uff0c\u53ef\u7528\u4e8e\u7f16\u5199 JavaScript \u6d4b\u8bd5\u3002\u4f7f\u7528 Jest \u4e3a\u6240\u6709 Lightning Web \u7ec4\u4ef6\u7f16\u5199\u5355\u5143\u6d4b\u8bd5\u3002<\/p>\n\n\n\n<p>\u5728\u547d\u4ee4\u884c\u4e2d\u8fd0\u884c Jest \u6d4b\u8bd5\uff0c\u6216\u8005\u5728 IDE \u4e2d\uff08\u901a\u8fc7\u4e00\u4e9b\u914d\u7f6e\uff09\u8fd0\u884c Jest \u6d4b\u8bd5\u3002Jest \u6d4b\u8bd5\u4e0d\u4f1a\u5728\u6d4f\u89c8\u5668\u4e2d\u8fd0\u884c\uff0c\u4e5f\u4e0d\u4f1a\u8fde\u63a5\u5230\u7ec4\u7ec7\uff0c\u56e0\u6b64\u5b83\u4eec\u8fd0\u884c\u901f\u5ea6\u5f88\u5feb\u3002\u5728\u201c\u76d1\u89c6\u6a21\u5f0f\u201d\u4e0b\u8fd0\u884c\u65f6\uff0c\u5b83\u4eec\u4f1a\u5728\u60a8\u7f16\u7801\u65f6\u4e3a\u60a8\u63d0\u4f9b\u5373\u65f6\u53cd\u9988\u3002Jest \u6d4b\u8bd5\u4ec5\u9002\u7528\u4e8e Lightning Web \u7ec4\u4ef6\uff0c\u4e0d\u9002\u7528\u4e8e Aura \u7ec4\u4ef6\u3002<\/p>\n\n\n\n<p>\u5c06 Jest \u6d4b\u8bd5\u7f16\u5199\u5230\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5355\u72ec\u6d4b\u8bd5\u7ec4\u4ef6<\/li>\n\n\n\n<li>\u6d4b\u8bd5\u7ec4\u4ef6\u7684\u516c\u5171 API\uff08\u5c5e\u6027\u548c\u65b9\u6cd5\u3001\u4e8b\u4ef6\uff09<code>@api<\/code><\/li>\n\n\n\n<li>\u6d4b\u8bd5\u57fa\u672c\u7528\u6237\u4ea4\u4e92\uff08\u70b9\u51fb\u6b21\u6570\uff09<\/li>\n\n\n\n<li>\u9a8c\u8bc1\u7ec4\u4ef6\u7684 DOM \u8f93\u51fa<\/li>\n\n\n\n<li>\u9a8c\u8bc1\u4e8b\u4ef6\u662f\u5426\u6309\u9884\u671f\u89e6\u53d1<\/li>\n<\/ul>\n\n\n\n<p>\u63d0\u793a<\/p>\n\n\n\n<p>lwc-recipes\u00a0\u5b58\u50a8\u5e93\u4e2d\u5145\u6ee1\u4e86 Jest \u6d4b\u8bd5\u3002\u5728 \u7684 Lightning Web \u7ec4\u4ef6\u7684\u6587\u4ef6\u5939\u4e2d\u67e5\u627e Jest \u6d4b\u8bd5\u3002<code>__tests__force-app\/main\/default\/lwc<\/code><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"install-sfdx-lwc-jest\">\u5b89\u88c5<code>sfdx-lwc-jest<\/code><\/h2>\n\n\n\n<p>\u5b89\u88c5\u53ca\u5176\u4f9d\u8d56\u9879\u5230\u6bcf\u4e2a Salesforce DX \u9879\u76ee\u4e2d\u3002 \u4ec5\u9002\u7528\u4e8e Salesforce DX \u9879\u76ee\u3002<code>sfdx-lwc-jest<\/code><code>sfdx-lwc-jest<\/code><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5148\u51b3\u6761\u4ef6<\/h2>\n\n\n\n<p>\u5728\u5b89\u88c5\u4e4b\u524d\uff0c\u8bf7\u5b89\u88c5 Node.js \u548c npm\u3002<code>sfdx-lwc-jest<\/code><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8282\u70b9.js\u6b64\u9875\u9762\u5217\u51fa\u4e86 Node.js \u7684\u4e24\u4e2a\u7248\u672c\u3002\u6211\u4eec\u5efa\u8bae\u4f7f\u7528\u201cLTS\u201d\uff08\u957f\u671f\u652f\u6301\uff09\u7248\u672c\uff0c\u800c\u4e0d\u662f\u201c\u5f53\u524d\u201d\u7248\u672c\u3002<\/li>\n\n\n\n<li>npm\u5b89\u88c5 Node.js \u65f6\uff0cnpm \u4e5f\u4f1a\u5b89\u88c5\u3002\u4e0d\u8fc7\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u66f4\u65b0 npm\uff0c\u56e0\u6b64\u8bf7\u8bbf\u95ee npm \u7f51\u7ad9\u4ee5\u83b7\u53d6\u8bf4\u660e\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u4f7f\u7528 Salesforce CLI \u5c06 Jest \u53ca\u5176\u4f9d\u8d56\u9879\u5b89\u88c5\u5230\u60a8\u7684\u9879\u76ee\u4e2d<\/h2>\n\n\n\n<p>\u5b89\u88c5 Jest \u53ca\u5176\u4f9d\u8d56\u9879\u7684\u6700\u7b80\u5355\u65b9\u6cd5\u662f\u8fd0\u884c Salesforce CLI \u547d\u4ee4\u00a0<code>sf force lightning lwc test setup<\/code>\u3002\u4ece\u6bcf\u4e2a Salesforce DX \u9879\u76ee\u7684\u9876\u7ea7\u76ee\u5f55\u8fd0\u884c\u547d\u4ee4\u3002\u6b64\u547d\u4ee4\u5c06\u521b\u5efa\u5fc5\u8981\u7684\u914d\u7f6e\u6587\u4ef6\u5e76\u4e3a\u60a8\u5b89\u88c5\u8f6f\u4ef6\u5305\u3002<code>sfdx-lwc-jest<\/code><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u624b\u52a8\u5b89\u88c5 Jest \u53ca\u5176\u4f9d\u8d56\u9879<\/h2>\n\n\n\n<p>\u5982\u679c\u60a8\u5728\u65e0\u6cd5\u4f7f\u7528 Salesforce CLI \u7684\u73af\u5883\u4e2d\u5de5\u4f5c\uff0c\u60a8\u53ef\u4ee5\u81ea\u884c\u8bbe\u7f6e\u6d4b\u8bd5\u4f9d\u8d56\u9879\u3002<\/p>\n\n\n\n<p>\u8981\u5b89\u88c5\u53ca\u5176\u4f9d\u8d56\u9879\uff0c\u8bf7\u4ece\u6bcf\u4e2a Salesforce DX \u9879\u76ee\u7684\u9876\u7ea7\u76ee\u5f55\u8fd0\u884c\u8fd9\u4e9b\u547d\u4ee4\u4e00\u6b21\u3002<code>sfdx-lwc-jest<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>npm install\nnpm install @salesforce\/sfdx-lwc-jest --save-dev<\/code><\/pre>\n\n\n\n<p>\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cSFDX \u9879\u76ee\u5728\u5176\u6587\u4ef6\u5757\u4e2d\u5305\u542b\u8fd9\u4e9b\u811a\u672c\u6761\u76ee\u3002\u5982\u679c\u9879\u76ee\u6587\u4ef6\u4e0d\u5305\u542b\u5b83\u4eec\uff0c\u8bf7\u6dfb\u52a0\u5b83\u4eec\u3002<code>scripts<\/code><code>package.json<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>{\n  ...\n  \"scripts\": {\n    ...\n    \"test\": \"npm run test:unit\",\n    \"test:unit\": \"sfdx-lwc-jest\",\n    \"test:unit:watch\": \"sfdx-lwc-jest --watch\",\n    \"test:unit:debug\": \"sfdx-lwc-jest --debug\",\n    \"test:unit:coverage\": \"sfdx-lwc-jest --coverage\",\n    ...\n  },\n  ...\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"run-jest-tests-for-lightning-web-components\">\u8fd0\u884c Lightning Web \u7ec4\u4ef6\u7684 Jest \u6d4b\u8bd5<\/h2>\n\n\n\n<p>\u5728\u7ec4\u4ef6\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u9891\u7e41\u6216\u6301\u7eed\u8fd0\u884c\u5355\u5143\u6d4b\u8bd5\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4ece VS Code \u8fd0\u884c\u6d4b\u8bd5<\/h2>\n\n\n\n<p>\u5982\u679c\u5b89\u88c5\u9002\u7528\u4e8e Visual Studio Code \u7684 Salesforce \u6269\u5c55\uff0c\u5219\u53ef\u4ee5\u5728 VS Code \u4e2d\u8fd0\u884c\u6d4b\u8bd5\u3001\u8c03\u8bd5\u6d4b\u8bd5\u548c\u76d1\u89c6 Jest \u6587\u4ef6\u3002\u6709\u5173\u8be6\u7ec6\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605\u9002\u7528\u4e8e Visual Studio Code \u7684 Salesforce \u6269\u5c55\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5728\u547d\u4ee4\u884c\u4e0a\u8fd0\u884c\u6d4b\u8bd5<\/h2>\n\n\n\n<p>\u8981\u8fd0\u884c\u9879\u76ee\u7684\u6240\u6709\u6d4b\u8bd5\uff0c\u8bf7\u4f7f\u7528 Salesforce CLI \u547d\u4ee4\u00a0<code>sf force lightning lwc test run<\/code>\u00a0from your root folder of your project\u3002\u5426\u5219\uff0c\u8bf7\u8fd0\u884c\u5728\u5b89\u88c5 Jest \u548c dependencies\u00a0\u65f6\u6dfb\u52a0\u5230\u9879\u76ee\u6587\u4ef6\u5757\u7684\u547d\u4ee4\u3002<code>scriptspackage.json<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>npm run test:unit<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u5728\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u6301\u7eed\u8fd0\u884c\u6d4b\u8bd5<\/h2>\n\n\n\n<p>\u82e5\u8981\u5728\u6bcf\u6b21\u4fdd\u5b58\u66f4\u6539\u65f6\u5bf9\u5355\u4e2a\u7ec4\u4ef6\u8fd0\u884c\u6240\u6709\u6d4b\u8bd5\uff0c\u8bf7\u8f6c\u5230\u7ec4\u4ef6\u76ee\u5f55\u5e76\u8fd0\u884c\u5e26\u6709\u53c2\u6570\u7684\u547d\u4ee4\u3002\u4f7f\u7528\u60a8\u5728\u5b89\u88c5 Jest \u548c\u4f9d\u8d56\u9879\u65f6\u6dfb\u52a0\u5230\u9879\u76ee\u6587\u4ef6\u5757\u7684\u6761\u76ee\u3002<code>sfdx-lwc-jest--watchscriptspackage.json<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>npm run test:unit:watch<\/code><\/pre>\n\n\n\n<p>Jest \u4f1a\u76d1\u89c6\u6240\u6709\u7ec4\u4ef6\u6587\u4ef6\u7684\u66f4\u65b0\uff0c\u5e76\u5728\u6bcf\u6b21\u68c0\u6d4b\u5230\u66f4\u6539\u65f6\u8fd0\u884c\u6240\u6709\u76f8\u5173\u6d4b\u8bd5\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5728\u8c03\u8bd5\u6a21\u5f0f\u4e0b\u8fd0\u884c Jests \u6d4b\u8bd5<\/h2>\n\n\n\n<p>\u5982\u679c\u8981\u9010\u6b65\u6267\u884c\u6d4b\u8bd5\u548c\u5e94\u7528\u4ee3\u7801\uff0c\u4ee5\u627e\u51fa\u6d4b\u8bd5\u6216\u4ee3\u7801\u672a\u6309\u9884\u671f\u8fd0\u884c\u7684\u539f\u56e0\uff0c\u5219\u5728\u8c03\u8bd5\u6a21\u5f0f\u4e0b\u8fd0\u884c Jest \u6d4b\u8bd5\u975e\u5e38\u6709\u7528\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u5de5\u5177\u8c03\u8bd5 Jest \u6d4b\u8bd5\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>VS Code Salesforce \u6269\u5c55\u5305<\/li>\n\n\n\n<li>Chrome \u5f00\u53d1\u8005\u5de5\u5177<\/li>\n\n\n\n<li>VS Code \u8c03\u8bd5\u5668\u9ad8\u7ea7\u914d\u7f6e<\/li>\n<\/ul>\n\n\n\n<p>VS Code Salesforce \u6269\u5c55\u5305\u63d0\u4f9b\u4e86\u6700\u7b80\u5355\u3001\u6700\u76f4\u63a5\u7684\u9009\u9879\uff0c\u800c Chrome DevTools \u5219\u8fce\u5408\u4e86\u7ecf\u9a8c\u4e30\u5bcc\u7684 Web \u5f00\u53d1\u4eba\u5458\u7684\u9700\u6c42\u3002\u6b64\u5916\uff0cVS Code \u8c03\u8bd5\u5668\u7684\u9ad8\u7ea7\u914d\u7f6e\u4f7f\u4f60\u80fd\u591f\u4f7f\u7528\u4e0d\u540c\u7684\u8c03\u8bd5\u5668\u548c\u8c03\u8bd5\u65b9\u6848\u3002\u9ad8\u7ea7\u914d\u7f6e\u4e3a\u8c03\u8bd5 Jest \u6d4b\u8bd5\u63d0\u4f9b\u4e86\u6700\u7075\u6d3b\u7684\u9009\u9879\u3002<\/p>\n\n\n\n<p>\u6709\u5173\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605\u8c03\u8bd5 Lightning Web \u7ec4\u4ef6\u7684 Jest \u6d4b\u8bd5\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u9ad8\u7ea7 Jest \u914d\u7f6e<\/h2>\n\n\n\n<p><code>sfdx-lwc-jest<\/code>\u914d\u7f6e\u4e3a\u8fd0\u884c Jest \u6d4b\u8bd5\uff0c\u65e0\u9700\u4efb\u4f55\u5176\u4ed6\u66f4\u6539\u3002\u4f46\u662f\uff0c\u5982\u679c\u60a8\u662f Jest \u7684\u9ad8\u7ea7\u7528\u6237\uff0c\u8bf7\u67e5\u770b Jest \u7684\u5176\u4ed6\u4e00\u4e9b\u914d\u7f6e\u9009\u9879\u3002\u8bf7\u53c2\u89c1\u00a0<code>github.com\/salesforce\/sfdx-lwc-jest#overriding-jest-config<\/code>\u3002<\/p>\n\n\n\n<p>\u91cd\u8981<\/p>\n\n\n\n<p>\u5982\u679c\u4f60\u7684 Jest \u6d4b\u8bd5\u6267\u884c\u7f13\u6162\uff0c\u5e76\u4e14\u5b83\u4eec\u6709\u6765\u81ea\u4e0d\u540c\u6587\u4ef6\u5939\u7684\u4f9d\u8d56\u9879\uff0c\u8bf7\u63d0\u4f9b\u6620\u5c04\u4ee5\u52a0\u5feb\u89e3\u6790\u901f\u5ea6\u3002\u8bf7\u53c2\u9605\u00a0lwc-recipes \u5b58\u50a8\u5e93\u4e2d\u7684 \u3002<code>moduleNameMapper<\/code><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"debug-jest-tests-for-lightning-web-components\">\u8c03\u8bd5 Lightning Web \u7ec4\u4ef6\u7684 Jest \u6d4b\u8bd5<\/h2>\n\n\n\n<p>VS Code \u63d0\u4f9b\u4e86\u4e00\u4e9b\u5de5\u5177\u6765\u5e2e\u52a9\u4f60\u6709\u6548\u5730\u8c03\u8bd5 Jest \u6d4b\u8bd5\u3002\u6839\u636e\u60a8\u7684\u6d4b\u8bd5\u8981\u6c42\uff0c\u4f7f\u7528 Salesforce \u6269\u5c55\u5305\u3001Chrome DevTools \u6216 VS Code \u8c03\u8bd5\u5668\u9ad8\u7ea7\u914d\u7f6e\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4f7f\u7528 Salesforce \u6269\u5c55\u5305\u8c03\u8bd5\u6d4b\u8bd5<\/h2>\n\n\n\n<p>\u9002\u7528\u4e8e Visual Studio Code \u7684 Salesforce \u6269\u5c55\u63d0\u4f9b\u4e86\u4e00\u4e2a LWC \u6d4b\u8bd5\u4fa7\u8fb9\u680f\uff0c\u4f9b\u60a8\u8f7b\u677e\u8fd0\u884c\u6d4b\u8bd5\u3002\u53ef\u4ee5\u8fd0\u884c\u4e00\u4e2a\u6d4b\u8bd5\u7528\u4f8b\u3001\u4e00\u4e2a\u6587\u4ef6\u4e2d\u7684\u6240\u6709\u6d4b\u8bd5\u7528\u4f8b\u6216\u9879\u76ee\u7684\u6240\u6709\u6d4b\u8bd5\u3002\u6709\u5173\u8be6\u7ec6\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605\u00a0LWC \u6d4b\u8bd5\u4fa7\u680f\u4e2d\u7684\u529f\u80fd\u6982\u8ff0\u3002<\/p>\n\n\n\n<p>\u82e5\u8981\u8c03\u8bd5\u6d4b\u8bd5\uff0c\u8bf7\u5728\u6d4b\u8bd5\u4e2d\u6dfb\u52a0\u65ad\u70b9\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"509\" src=\"http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/unit_test_debug_breakpoint-1024x509-1.png\" alt=\"\" class=\"wp-image-3999\" title=\"\" srcset=\"http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/unit_test_debug_breakpoint-1024x509-1.png 1024w, http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/unit_test_debug_breakpoint-1024x509-1-300x149.png 300w, http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/unit_test_debug_breakpoint-1024x509-1-768x382.png 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u8981\u786e\u4fdd\u6b63\u786e\u8c03\u5ea6\u4e8b\u4ef6\uff0c\u8bf7\u5355\u51fb\u5305\u542b\u65b9\u6cd5\u7684\u884c\u53f7 \uff081\uff09\u3002\u60a8\u8fd8\u53ef\u4ee5\u5728\u7ec4\u4ef6\u7684 JavaScript \u6587\u4ef6\u4e2d\u7684\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\u4e0a\u6dfb\u52a0\u65ad\u70b9\uff0c\u4ee5\u89c2\u5bdf\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\u7684\u89e6\u53d1\u65f6\u95f4\u3002<code>dispatchEvent()<\/code><\/p>\n\n\n\n<p>\u6dfb\u52a0\u65ad\u70b9\u540e\uff0c\u5355\u51fb\u201c\u8c03\u8bd5\u6d4b\u8bd5\u201d\uff082\uff09\u3002\u6b64\u94fe\u63a5\u8fd0\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a\u3002<code>node --inspect-brk node_modules\/.bin\/jest --runInBand<\/code><\/p>\n\n\n\n<p>\u63d0\u793a<\/p>\n\n\n\n<p>\u8bf7\u53c2\u9605\u00a0lwc-recipes\u00a0\u5b58\u50a8\u5e93\u3002<code>helloConditionalRendering.test.js<\/code><\/p>\n\n\n\n<p>\u5728\u201c\u8fd0\u884c\u201d\u89c6\u56fe\u4e2d\u663e\u793a\u4e0e\u8fd0\u884c\u548c\u8c03\u8bd5\u76f8\u5173\u7684\u4fe1\u606f\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"731\" src=\"http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/unit_test_debug_panels-1024x731.png\" alt=\"\" class=\"wp-image-4000\" title=\"\" srcset=\"http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/unit_test_debug_panels-1024x731.png 1024w, http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/unit_test_debug_panels-300x214.png 300w, http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/unit_test_debug_panels-768x548.png 768w, http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/unit_test_debug_panels-1536x1096.png 1536w, http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/unit_test_debug_panels-2048x1461.png 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u82e5\u8981\u6253\u5f00\u201c\u8fd0\u884c\u201d\u89c6\u56fe\uff0c\u8bf7\u5355\u51fb\u201c\u8fd0\u884c\u548c\u8c03\u8bd5\u201d\uff081\uff09\uff0c\u60a8\u53ef\u4ee5\u5728\u5176\u4e2d\u67e5\u770b\u8868\u8fbe\u5f0f \uff082\uff09\uff0c\u5e76\u4f7f\u7528\u8c03\u8bd5\u5de5\u5177\u680f \uff083\uff09 \u5355\u6b65\u6267\u884c\u6d4b\u8bd5\u3002\u5728\u8c03\u8bd5\u63a7\u5236\u53f0 \uff084\uff09 \u4e2d\uff0c\u53ef\u4ee5\u5728\u6d4b\u8bd5\u6267\u884c\u65f6\u68c0\u67e5\u5143\u7d20\u3002<\/p>\n\n\n\n<p>\u5355\u51fb\u8c03\u8bd5\u5de5\u5177\u680f\u00a0\uff083\uff09 \u4e0a\u7684\u201c\u7ee7\u7eed\u201d\u4ee5\u5355\u6b65\u6267\u884c\u65ad\u70b9\u3002\u5982\u679c\u672a\u6536\u5230\u9519\u8bef\uff0c\u5219\u6d4b\u8bd5\u5c06\u6210\u529f\u5b8c\u6210\u3002\u5728 VS Code \u7ec8\u7aef\u4e2d\u67e5\u770b\u4efb\u4f55\u6d4b\u8bd5\u6267\u884c\u8f93\u51fa\u3002<\/p>\n\n\n\n<p>\u8c03\u8bd5 Jest Salesforce \u6269\u5c55<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-rich\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/youtube.com\/watch?v=OOGn0JLabS0\n<\/div><\/figure>\n\n\n\n<p>\u63d0\u793a<\/p>\n\n\n\n<p>\u6709\u5173\u66f4\u591a\u8c03\u8bd5\u6280\u672f\uff0c\u8bf7\u53c2\u9605\u4ece\u6587\u4ef6\u5185\u8fd0\u884c\u3001\u8c03\u8bd5\u6216\u89c2\u770b Jest \u6d4b\u8bd5\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4f7f\u7528 Chrome DevTools \u8c03\u8bd5\u6d4b\u8bd5<\/h2>\n\n\n\n<p>\u867d\u7136 Salesforce \u6269\u5c55\u5305\u4f7f\u60a8\u80fd\u591f\u4ece VS Code \u4e2d\u8c03\u8bd5 Jest \u6d4b\u8bd5\uff0c\u4f46\u00a0Chrome DevTools\u00a0\u4e3a\u60a8\u63d0\u4f9b\u4e86\u7528\u4e8e Web \u5f00\u53d1\u7684\u5168\u9762\u8bca\u65ad\u529f\u80fd\u3002<\/p>\n\n\n\n<p>\u82e5\u8981\u5728\u8c03\u8bd5\u6a21\u5f0f\u4e0b\u8fd0\u884c\u9879\u76ee\u4e2d\u7684\u6240\u6709\u6d4b\u8bd5\uff0c\u8bf7\u5728 VS Code \u7ec8\u7aef\u4e2d\u8f93\u5165\u6b64\u547d\u4ee4\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>npm run test:unit:debug<\/code><\/pre>\n\n\n\n<p>\u6b64\u547d\u4ee4\u8c03\u7528 \uff0c\u7136\u540e\u8fd0\u884c \u3002<code>sfdx-lwc-jest --debug<\/code><code>node --inspect-brk node_modules\/.bin\/jest --runInBand<\/code><\/p>\n\n\n\n<p>\u6ce8\u610f<\/p>\n\n\n\n<p>\u6211\u4eec\u5efa\u8bae\u60a8\u4f7f\u7528\u8be5\u547d\u4ee4\uff0c\u56e0\u4e3a\u8be5\u547d\u4ee4\u5df2\u89e3\u6790\u4e3a\u8282\u70b9\u4f9d\u8d56\u9879\uff0c\u5e76\u4e14\u65e0\u6cd5\u5728\u547d\u4ee4\u884c\u4e0a\u8bbf\u95ee\u3002<code>npm run test:unit:debug<\/code><code>sfdx-lwc-jest<\/code><\/p>\n\n\n\n<p>\u82e5\u8981\u5728\u8c03\u8bd5\u6a21\u5f0f\u4e0b\u8fd0\u884c\u5355\u4e2a\u6d4b\u8bd5\uff0c\u8bf7\u8f93\u5165\u6b64\u547d\u4ee4\uff0c\u5176\u4e2d\u8981\u8c03\u8bd5\u7684\u6d4b\u8bd5\u7684\u540d\u79f0\u3002<code>testName<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>npm run test:unit:debug -- testName<\/code><\/pre>\n\n\n\n<p>\u63a5\u4e0b\u6765\uff0c\u6253\u5f00 Chrome \u6d4f\u89c8\u5668\u5e76\u8f6c\u5230 \u3002\u201c\u8fdc\u7a0b\u76ee\u6807\u201d\u90e8\u5206\u5217\u51fa\u4e86\u5728\u8c03\u8bd5\u6a21\u5f0f\u4e0b\u5728\u7cfb\u7edf\u4e2d\u8fd0\u884c\u7684\u6240\u6709\u8282\u70b9\u8fdb\u7a0b\u3002<code>chrome:\/\/inspect<\/code><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"787\" src=\"http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/unit_test_debug_chrome-1024x787.png\" alt=\"\" class=\"wp-image-4001\" title=\"\" srcset=\"http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/unit_test_debug_chrome-1024x787.png 1024w, http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/unit_test_debug_chrome-300x231.png 300w, http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/unit_test_debug_chrome-768x590.png 768w, http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/unit_test_debug_chrome.png 1090w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u82e5\u8981\u6253\u5f00\u201cDevTools\u201d\u7a97\u53e3\uff0c\u8bf7\u5355\u51fb\u201c\u8fdc\u7a0b\u76ee\u6807\u201d\u90e8\u5206\u4e2d\u5217\u51fa\u7684\u201cJest \u6d4b\u8bd5\u201d\u4e0b\u7684<strong>\u201c\u68c0\u67e5<\/strong>\u201d\u94fe\u63a5\u3002<\/p>\n\n\n\n<p>\u4f7f\u7528\u201cDevTools \u6e90\u201d\u9762\u677f\u53ef\u4ee5\u8c03\u8bd5\u6d4b\u8bd5\u3002\u9996\u5148\uff0c\u5728 VS Code \u7684\u6d4b\u8bd5\u4ee3\u7801\u4e2d\u6dfb\u52a0\u4e00\u6761\u8bed\u53e5\u3002<code>debugger<\/code><\/p>\n\n\n\n<p>\u6ce8\u610f<\/p>\n\n\n\n<p>Chrome \u68c0\u67e5\u5668\u4e0d\u4f1a\u5355\u6b65\u6267\u884c\u4f60\u5728\u4e0a\u4e00\u90e8\u5206\u7684 VS Code \u4e2d\u6307\u5b9a\u7684\u65ad\u70b9\u3002\u8bf7\u6539\u7528\u6d4b\u8bd5\u4e2d\u7684\u8bed\u53e5\u3002<code>debugger<\/code><\/p>\n\n\n\n<p>\u82e5\u8981\u6062\u590d\u6d4b\u8bd5\u6267\u884c\uff0c\u8bf7\u5355\u51fb DevTools \u4e2d\u7684\u201c\u6062\u590d\u811a\u672c\u6267\u884c \uff08<img decoding=\"async\" src=\"https:\/\/developer.salesforce.com\/1\/content-asset\/immutable\/s\/17015579090000000\/salesforcedocslwc\/content\/media\/unit_test_debug_resume.png\" alt=\"Resume icon\">\uff09\u201d\u6309\u94ae\u3002\u6d4b\u8bd5\u5c06\u663e\u793a\u60a8\u7684\u6d4b\u8bd5\u4ee3\u7801\uff0c\u5e76\u5728\u60a8\u6dfb\u52a0\u7684\u8bed\u53e5\u5904\u505c\u6b62\uff0c\u5982\u5df2\u7f16\u8bd1\u4ee3\u7801\u7684\u7b2c 36 \u884c\u6240\u793a\u3002\u7136\u540e\uff0c\u53ef\u4ee5\u5728\u201c\u6e90\u201d\u9762\u677f\u4e2d\u6dfb\u52a0\u65ad\u70b9\uff0c\u5982\u6b64\u5c4f\u5e55\u622a\u56fe\u4e2d\u7684\u7b2c 37 \u884c\u6240\u793a\u3002<code>debugger<\/code><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"874\" height=\"710\" src=\"http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/unit_test_debug_devtools.png\" alt=\"\" class=\"wp-image-4002\" title=\"\" srcset=\"http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/unit_test_debug_devtools.png 874w, http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/unit_test_debug_devtools-300x244.png 300w, http:\/\/www.ponybai.com\/wp-content\/uploads\/2023\/12\/unit_test_debug_devtools-768x624.png 768w\" sizes=\"(max-width: 874px) 100vw, 874px\" \/><\/figure>\n\n\n\n<p>\u63d0\u793a<\/p>\n\n\n\n<p>\u6709\u5173\u4f7f\u7528 Chrome DevTools \u7684\u66f4\u591a\u8c03\u8bd5\u6280\u672f\uff0c\u8bf7\u53c2\u9605\u8c03\u8bd5 JavaScript\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u9700\u8981\u66f4\u597d\u5730\u63a7\u5236\u5982\u4f55\u5728\u8c03\u8bd5\u6a21\u5f0f\u4e0b\u8fd0\u884c Jest \u6d4b\u8bd5\uff0c\u8bf7\u8003\u8651\u4f7f\u7528 VS Code \u9ad8\u7ea7\u914d\u7f6e\u3002<\/p>\n\n\n\n<p>\u4f7f\u7528 Chrome \u5f00\u53d1\u8005\u5de5\u5177\u8c03\u8bd5 Jest \u6d4b\u8bd5<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-rich\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/youtube.com\/watch?v=TDHCrLAn33E\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"debug-jest-tests-using-vs-code-advanced-configuration\">\u4f7f\u7528 VS Code \u9ad8\u7ea7\u914d\u7f6e\u8c03\u8bd5 Jest \u6d4b\u8bd5<\/h2>\n\n\n\n<p>VS Code \u5141\u8bb8\u4f60\u914d\u7f6e\u5728\u8c03\u8bd5\u6a21\u5f0f\u4e0b\u8fd0\u884c Jest \u6d4b\u8bd5\u7684\u65b9\u5f0f\u3002<\/p>\n\n\n\n<p>\u8981\u4f7f\u7528\u9ad8\u7ea7\u914d\u7f6e\uff0c\u8bf7\u6267\u884c\u4ee5\u4e0b\u64cd\u4f5c\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u751f\u6210\u542f\u52a8\u914d\u7f6e\u6587\u4ef6\u3002\n<ol class=\"wp-block-list\">\n<li>\u5728\u201c\u8fd0\u884c\u201d\u89c6\u56fe\u4e2d\uff0c\u5355\u51fb\u201c<strong>\u521b\u5efa launch.json \u6587\u4ef6<\/strong>\u201d\u94fe\u63a5\u3002<img decoding=\"async\" src=\"https:\/\/developer.salesforce.com\/1\/content-asset\/immutable\/s\/17015579080000000\/salesforcedocslwc\/content\/media\/unit_test_debug_customize.png\" alt=\"\u4ece\u201c\u8fd0\u884c\u548c\u8c03\u8bd5\u201d\u9009\u9879\u5361\u751f\u6210 launch.json \u6587\u4ef6\"><\/li>\n\n\n\n<li>\u5728\u663e\u793a\u7684\u4e0b\u62c9\u5217\u8868\u4e2d\uff0c\u9009\u62e9<strong>\u201cNode.js\u201d<\/strong>\uff0c\u8fd9\u5c06\u4e3a\u60a8\u521b\u5efa\u4e00\u4e2a\u6587\u4ef6\u3002\u5c06 \u7684\u5185\u5bb9\u66ff\u6362\u4e3a sfdx-lwc-jest \u5b58\u50a8\u5e93\u7684\u00a0Visual Studio Code \u4e2d\u7684\u8c03\u8bd5\u4e2d\u6240\u793a\u7684\u914d\u7f6e\u3002<code>launch.jsonlaunch.json<\/code>\u6ce8\u610fMac \u548c Windows \u7528\u6237\u7684\u914d\u7f6e\u4e0d\u540c\u3002\u6309\u7167 sfdx-lwc-jest \u5b58\u50a8\u5e93\u4e2d\u7684\u8bf4\u660e\u67e5\u627e\u64cd\u4f5c\u7cfb\u7edf\u7684\u914d\u7f6e\u3002\u82e5\u8981\u4e3a\u4e0d\u540c\u7684\u8c03\u8bd5\u5668\u548c\u8c03\u8bd5\u65b9\u6848\u81ea\u5b9a\u4e49\u542f\u52a8\u914d\u7f6e\uff0c\u8bf7\u4f7f\u7528\u00a0VS Code \u7684\u00a0<code>launch.json<\/code>\u00a0\u5c5e\u6027\u3002<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li>\u5728 Salesforce DX \u9879\u76ee\u7684\u6839\u76ee\u5f55\u4e0b\u6dfb\u52a0\u4e00\u4e2a Jest \u914d\u7f6e\u6587\u4ef6\u3002\u5728\u6b64\u6587\u4ef6\u4e2d\uff0c\u5305\u62ec sfdx-lwc-jest \u5b58\u50a8\u5e93\u4e2d\u8986\u76d6 Jest Config\u00a0\u4e2d\u63d0\u4f9b\u7684\u914d\u7f6e\u4ee3\u7801\u3002\u914d\u7f6e\u4ee3\u7801\u5982\u4e0b\u6240\u793a\u3002<code>jest.config.jsconst { jestConfig } = require(\"@salesforce\/sfdx-lwc-jest\/config\"); module.exports = { ...jestConfig, \/\/ add any custom configurations here };<\/code><\/li>\n\n\n\n<li>\u5728\u6d4b\u8bd5\u4ee3\u7801\u548c\u7ec4\u4ef6\u7684 JavaScript \u6587\u4ef6\u4e2d\u6dfb\u52a0\u8bed\u53e5\u3002<code>debugger<\/code>\u6ce8\u610f\u4f7f\u7528 VS Code \u4e2d\u7684\u9ad8\u7ea7\u914d\u7f6e\u8fdb\u884c\u8c03\u8bd5\u65f6\uff0c\u4e0d\u652f\u6301\u6dfb\u52a0\u65ad\u70b9\u3002\u6dfb\u52a0\u65ad\u70b9\u7684\u884c\u53f7\u4e0e\u7f16\u8bd1\u6587\u4ef6\u4e2d\u7684\u884c\u53f7\u4e0d\u5339\u914d\u3002\u8bf7\u6539\u7528\u8be5\u8bed\u53e5\u3002<code>debugger<\/code><\/li>\n\n\n\n<li>\u542f\u52a8\u914d\u7f6e\u6587\u4ef6\u3002\u8f6c\u5230\u201c\u8fd0\u884c\u201d\u89c6\u56fe\u3002\u9009\u62e9\u00a0<strong>Debug Jest Tests<\/strong>\u00a0\u914d\u7f6e\uff0c\u7136\u540e\u5355\u51fb Start Debugging \uff08<img decoding=\"async\" src=\"https:\/\/developer.salesforce.com\/1\/content-asset\/immutable\/s\/17015579090000000\/salesforcedocslwc\/content\/media\/unit_test_debug_run.png\" alt=\"\u201c\u5f00\u59cb\u8c03\u8bd5\u201d\u56fe\u6807\">\uff09\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u6b64\u547d\u4ee4\u8fd0\u884c\u9879\u76ee\u4e2d\u7684\u6240\u6709\u6d4b\u8bd5\uff0c\u5e76\u5728\u6d4b\u8bd5\u4ee3\u7801\u548c\u7ec4\u4ef6\u7684 JavaScript \u6587\u4ef6\u4e2d\u6dfb\u52a0\u7684\u6240\u6709\u8c03\u8bd5\u5668\u8bed\u53e5\u4e2d\u505c\u6b62\u3002\u53ef\u4ee5\u5728 VS Code \u7ec8\u7aef\u4e2d\u67e5\u770b\u6267\u884c\u8f93\u51fa\uff0c\u5e76\u4f7f\u7528 VS Code \u4e2d\u7684\u8c03\u8bd5\u529f\u80fd\uff0c\u4f8b\u5982\u4f7f\u7528\u8c03\u8bd5\u63a7\u5236\u53f0\u68c0\u67e5\u53d8\u91cf\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u4f7f\u7528 VSCode \u8c03\u8bd5\u5668\u9ad8\u7ea7\u914d\u7f6e\u8c03\u8bd5 Jest \u6d4b\u8bd5<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-rich\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/youtube.com\/watch?v=x3EbNOiczm4\n<\/div><\/figure>\n\n\n\n<p>\u63d0\u793a<\/p>\n\n\n\n<p>\u6709\u5173\u89e3\u51b3 Jest \u95ee\u9898\u7684\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605\u00a0<code>jestjs.io\/docs\/en\/troubleshooting<\/code>\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"write-jest-tests-for-lightning-web-components\">\u4e3a Lightning Web \u7ec4\u4ef6\u7f16\u5199 Jest \u6d4b\u8bd5<\/h2>\n\n\n\n<p>\u5728\u672c\u5730 JavaScript \u6587\u4ef6\u4e2d\u7f16\u5199\u7ec4\u4ef6\u6d4b\u8bd5\u3002\u5c06\u5b83\u4eec\u4e0e\u7ec4\u4ef6\u672c\u8eab\u4e00\u8d77\u63d0\u4ea4\u5230\u7248\u672c\u63a7\u5236\u4e2d\u3002Jest \u6d4b\u8bd5\u4e0d\u4f1a\u4fdd\u5b58\u5230 Salesforce\u3002<\/p>\n\n\n\n<p>Jest \u6d4b\u8bd5\u7684\u7f16\u5199\u3001\u4fdd\u5b58\u548c\u8fd0\u884c\u65b9\u5f0f\u4e0e\u4e3a Lightning \u6d4b\u8bd5\u670d\u52a1\u7f16\u5199\u7684 Jasmine \u6216 Mocha \u6d4b\u8bd5\u4e0d\u540c\u3002Jest \u6d4b\u8bd5\u4ec5\u662f\u672c\u5730\u6d4b\u8bd5\uff0c\u5e76\u4e14\u72ec\u7acb\u4e8e Salesforce \u4fdd\u5b58\u548c\u8fd0\u884c\u3002<\/p>\n\n\n\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528 Salesforce CLI \u547d\u4ee4\u00a0<code>sf force lightning lwc test create<\/code>\u00a0\u5728\u76ee\u5f55\u4e2d\u521b\u5efa\u6d4b\u8bd5\u76ee\u5f55\u548c\u6837\u677f\u6d4b\u8bd5\u6587\u4ef6\u3002\u4ee5\u4e0b\u547d\u4ee4\u521b\u5efa\u7528\u4e8e\u6d4b\u8bd5 Lightning Web \u7ec4\u4ef6\u7684\u6d4b\u8bd5\u76ee\u5f55\u548c\u6587\u4ef6\u3002<code>myButton<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sf force lightning lwc test create -f force-app\/main\/default\/lwc\/myButton\/myButton.js<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u7ec4\u4ef6\u6587\u4ef6\u5939\u7ed3\u6784<\/h2>\n\n\n\n<p>\u4f7f\u7528 Salesforce CLI \u547d\u4ee4\u540e\uff0c\u60a8\u4f1a\u770b\u5230\u5728\u7ec4\u4ef6\u7684\u6346\u7ed1\u5305\u76ee\u5f55\u7684\u9876\u5c42\u547d\u540d\u7684\u6587\u4ef6\u5939\uff0c\u4f8b\u5982 .\u5426\u5219\uff0c\u8bf7\u81ea\u884c\u521b\u5efa\u6587\u4ef6\u5939\u3002\u5c06\u6b64\u7ec4\u4ef6\u7684\u6240\u6709\u6d4b\u8bd5\u4fdd\u5b58\u5728\u6587\u4ef6\u5939\u4e2d\u3002\u901a\u8fc7\u5c06\u6587\u4ef6\u5939\u63d0\u4ea4\u5230\u7248\u672c\u63a7\u5236\uff0c\u4e0e\u5176\u4ed6\u56e2\u961f\u6210\u5458\u6216\u7cfb\u7edf\u5171\u4eab\u6d4b\u8bd5\u3002<code>create<\/code><code>__tests__<\/code><code>force-app\/main\/default\/lwc\/myButton\/__tests__<\/code><code>__tests__<\/code><code>__tests__<\/code><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u66f4\u65b0 .forceignore<\/h2>\n\n\n\n<p>\u8981\u786e\u4fdd\u6587\u4ef6\u5939\u53ca\u5176\u5185\u5bb9\u6c38\u8fdc\u4e0d\u4f1a\u4fdd\u5b58\u5230 Salesforce\uff0c\u8bf7\u5c06\u6b64 glob \u6a21\u5f0f\u6dfb\u52a0\u5230\u6bcf\u4e2a\u9879\u76ee\u7684\u6587\u4ef6\u4e2d\u3002Salesforce CLI \u547d\u4ee4\u00a0sf force lightning lwc test setup\u00a0\u4f1a\u4e3a\u60a8\u6267\u884c\u6b64\u4efb\u52a1\u3002<code>__tests__.forceignore<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>**\/__tests__\/**<\/code><\/pre>\n\n\n\n<p>\u6b64\u6a21\u5f0f\u53ef\u786e\u4fdd\u63a8\u9001\u3001\u62c9\u53d6\u6216\u8f6c\u6362\u4ee3\u7801\u548c\u5143\u6570\u636e\u7684 Salesforce DX \u547d\u4ee4\u5ffd\u7565\u6587\u4ef6\u5939\u53ca\u5176\u5185\u5bb9\u3002<code>__tests__<\/code><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6d4b\u8bd5\u6587\u4ef6\u547d\u540d\u7ea6\u5b9a<\/h2>\n\n\n\n<p>Jest \u5728\u76ee\u5f55\u4e2d\u8fd0\u884c JavaScript \u6587\u4ef6\u3002\u6d4b\u8bd5\u6587\u4ef6\u7684\u540d\u79f0\u5fc5\u987b\u4ee5 \u7ed3\u5c3e\uff0c\u6211\u4eec\u5efa\u8bae\u6d4b\u8bd5\u4ee5 \u7ed3\u5c3e\u3002\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e2a\u5305\u542b\u6240\u6709\u7ec4\u4ef6\u6d4b\u8bd5\u7684\u6d4b\u8bd5\u6587\u4ef6\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528\u591a\u4e2a\u6587\u4ef6\u6765\u7ec4\u7ec7\u76f8\u5173\u6d4b\u8bd5\u3002\u6d4b\u8bd5\u6587\u4ef6\u53ef\u4ee5\u653e\u5728\u5b50\u6587\u4ef6\u5939\u4e2d\u3002<code>__tests__<\/code><code>.js<\/code><code>.test.js<\/code><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7f16\u5199\u57fa\u672c\u6d4b\u8bd5<\/h2>\n\n\n\n<p>\u8981\u6210\u4e3a\u4e00\u540d\u6709\u6210\u5c31\u7684\u6d4b\u8bd5\u4eba\u5458\uff0c\u8bf7\u5b66\u4e60\u5982\u4f55\u4f7f\u7528 Jest\u3002\u7279\u522b\u662f\uff0c\u5b66\u4e60\u00a0Jest \u63d0\u4f9b\u7684\u8bb8\u591a\u5339\u914d\u5668\u7684\u8bed\u6cd5\u3002\u6211\u4eec\u5728\u8fd9\u91cc\u4e0d\u4ecb\u7ecd Jest \u7684\u4e00\u822c\u7528\u6cd5\uff0c\u56e0\u4e3a Jest \u6587\u6863\u975e\u5e38\u51fa\u8272\u3002\u6211\u4eec\u4e13\u6ce8\u4e8e\u5c06 Jest \u4e0e Lightning Web \u7ec4\u4ef6\u4e00\u8d77\u4f7f\u7528\u7684\u7ec6\u8282\u3002<\/p>\n\n\n\n<p>Lightning Web \u7ec4\u4ef6\u7684 Jest \u6d4b\u8bd5\u5e94\u8be5\u5355\u72ec\u6d4b\u8bd5\u5355\u4e2a\u7ec4\u4ef6\u7684\u884c\u4e3a\uff0c\u5bf9\u5916\u90e8\u7ec4\u4ef6\u6216\u670d\u52a1\u7684\u4f9d\u8d56\u6027\u6700\u5c0f\u3002<\/p>\n\n\n\n<p>\u8ba9\u6211\u4eec\u770b\u4e00\u4e0b\uff0c\u8fd9\u662f\u5bf9\u00a0<code>lwc-recipes<\/code>\u00a0\u5b58\u50a8\u5e93\u4e2d Lightning Web \u7ec4\u4ef6\u7684\u6d4b\u8bd5\u3002<code>hello.test.jshello<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ hello.test.js\nimport { createElement } from \"lwc\";\nimport Hello from \"c\/hello\";\n\ndescribe(\"c-hello\", () => {\n  afterEach(() => {\n    \/\/ The jsdom instance is shared across test cases in a single file so reset the DOM\n    while (document.body.firstChild) {\n      document.body.removeChild(document.body.firstChild);\n    }\n  });\n\n  it(\"displays greeting\", () => {\n    \/\/ Create element\n    const element = createElement(\"c-hello\", {\n      is: Hello,\n    });\n    document.body.appendChild(element);\n\n    \/\/ Verify displayed greeting\n    const div = element.shadowRoot.querySelector(\"div\");\n    expect(div.textContent).toBe(\"Hello, World!\");\n  });\n});<\/code><\/pre>\n\n\n\n<p>\u8ba9\u6211\u4eec\u6f14\u7ec3\u4e00\u4e0b\u4ee3\u7801\uff0c\u5e76\u4e86\u89e3\u6d4b\u8bd5\u6587\u4ef6\u7684\u6bcf\u4e2a\u90e8\u5206\u3002\u6240\u6709\u6d4b\u8bd5\u90fd\u5fc5\u987b\u4f7f\u7528\u6b64\u7ed3\u6784\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8fdb\u53e3<\/h3>\n\n\n\n<p>\u9996\u5148\uff0c\u6d4b\u8bd5\u5bfc\u5165\u65b9\u6cd5\u3002\u6b64\u65b9\u6cd5\u4ec5\u5728\u6d4b\u8bd5\u4e2d\u53ef\u7528\u3002\u4ee3\u7801\u8fd8\u5fc5\u987b\u5bfc\u5165\u8981\u6d4b\u8bd5\u7684\u7ec4\u4ef6\uff0c\u5728\u672c\u4f8b\u4e2d\u4e3a .\u7a0d\u540e\u4f7f\u7528\u8fd9\u4e9b\u5bfc\u5165\u6765\u521b\u5efa\u53d7\u6d4b\u7ec4\u4ef6\u3002<code>createElement<\/code><code>c\/hello<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import { createElement } from \"lwc\";\nimport Hello from \"c\/hello\";<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u63cf\u8ff0\u5757<\/h3>\n\n\n\n<p>\u6a21\u5757\u5b9a\u4e49\u6d4b\u8bd5\u5957\u4ef6\u3002\u6d4b\u8bd5\u5957\u4ef6\u5305\u542b\u4e00\u4e2a\u6216\u591a\u4e2a\u6d4b\u8bd5\uff0c\u4ece\u529f\u80fd\u89d2\u5ea6\u6765\u770b\uff0c\u8fd9\u4e9b\u6d4b\u8bd5\u5c5e\u4e8e\u4e00\u8d77\u3002<code>describe<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>describe('c-hello', () =&gt; {\n  ...\n});<\/code><\/pre>\n\n\n\n<p>\u6211\u4eec\u5efa\u8bae\u4f7f\u7528\u4e00\u4e2a\u9876\u7ea7\u5757\uff0c\u5176\u63cf\u8ff0\u4e0e\u7ec4\u4ef6\u540d\u79f0\u5339\u914d\u3002\u4ec5\u5728\u5fc5\u8981\u65f6\u6dfb\u52a0\u66f4\u591a\u5bf9\u529f\u80fd\u8fdb\u884c\u5206\u7ec4\u7684\u5757\u3002<code>describe<\/code><code>describe<\/code><\/p>\n\n\n\n<p>\u5bf9\u4e8e \uff0c\u5355\u4e2a\u5c31\u8db3\u591f\u4e86\u3002\u5bf9\u4e8e\u66f4\u590d\u6742\u7684\u7ec4\u4ef6\uff0c\u4f7f\u7528\u591a\u4e2a\u5757\u5c06\u4e8b\u7269\u5206\u7ec4\u4e3a\u9519\u8bef\u573a\u666f\u3001\u7a7a\u8f93\u5165\u3001\u6709\u7ebf\u6570\u636e\u3001\u5e38\u89c4\u6570\u636e\u7b49\u7c7b\u522b\u53ef\u80fd\u662f\u6709\u610f\u4e49\u7684\u3002<code>hello.test.js<\/code><code>describe<\/code><code>describe<\/code><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5728\u6d4b\u8bd5\u4e4b\u95f4\u6e05\u7406<\/h3>\n\n\n\n<p>Jest\u00a0<code>afterEach\uff08\uff09<\/code>\u00a0\u65b9\u6cd5\u5728\u6d4b\u8bd5\u7ed3\u675f\u65f6\u91cd\u7f6e DOM\u3002<\/p>\n\n\n\n<p>\u7531\u4e8e\u6d4b\u8bd5\u8fd0\u884c\u65f6\u6d4f\u89c8\u5668\u6ca1\u6709\u8fd0\u884c\uff0c\u56e0\u6b64 Jest \u7528\u6765\u63d0\u4f9b\u4e00\u4e2a\u884c\u4e3a\u4e0e\u6d4f\u89c8\u5668\u7684 DOM \u6216 .Jest \u4f9d\u8d56\u4e8e \uff0c\u8fd9\u662f\u4e00\u4e2a Node.js \u9879\u76ee\uff0c\u56e0\u6b64\u5728\u9879\u76ee\u5b89\u88c5\u8fc7\u7a0b\u4e2d\u4e0b\u8f7d\u7684\u65b9\u5f0f\u4e0e Jest \u672c\u8eab\u76f8\u540c\u3002<code>jsdom<\/code><code>document<\/code><code>jsdom<\/code><code>jsdom<\/code><code>sfdx-lwc-jest<\/code><\/p>\n\n\n\n<p>\u6bcf\u4e2a\u6d4b\u8bd5\u6587\u4ef6\u5171\u4eab\u4e00\u4e2a \u7684\u5b9e\u4f8b\uff0c\u5e76\u4e14\u6587\u4ef6\u5185\u7684\u6d4b\u8bd5\u4e4b\u95f4\u4e0d\u4f1a\u91cd\u7f6e\u66f4\u6539\u3002\u56e0\u6b64\uff0c\u6700\u4f73\u505a\u6cd5\u662f\u5728\u6d4b\u8bd5\u4e4b\u95f4\u8fdb\u884c\u6e05\u7406\uff0c\u4ee5\u4fbf\u6d4b\u8bd5\u7684\u8f93\u51fa\u4e0d\u4f1a\u5f71\u54cd\u4efb\u4f55\u5176\u4ed6\u6d4b\u8bd5\u3002<code>jsdom<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>afterEach(() =&gt; {\n  \/\/ The jsdom instance is shared across test cases in a single file so reset the DOM\n  while (document.body.firstChild) {\n    document.body.removeChild(document.body.firstChild);\n  }\n});<\/code><\/pre>\n\n\n\n<p>Jest \u8fd8\u5177\u6709\u5176\u4ed6\u53ef\u7528\u4e8e\u6267\u884c\u8bbe\u7f6e\u548c\u6e05\u7406\u4efb\u52a1\u7684\u65b9\u6cd5\u3002\u8bf7\u53c2\u89c1\u00a0<code>jestjs.io\/docs\/en\/setup-teardown<\/code>\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">IT\uff08\u6216\u6d4b\u8bd5\uff09\u5757<\/h3>\n\n\n\n<p>\u6ce8\u610f<\/p>\n\n\n\n<p><code>it<\/code>\u662f\u00a0<code>test<\/code>\u00a0\u7684\u522b\u540d\u3002\u4f7f\u7528\u4efb\u4f55\u53ef\u4ee5\u8ba9\u60a8\u51c6\u786e\u63cf\u8ff0\u9884\u671f\u884c\u4e3a\u7684\u8bcd\u3002<\/p>\n\n\n\n<p>\u5757\u63cf\u8ff0\u5355\u4e2a\u6d4b\u8bd5\u3002\u6d4b\u8bd5\u8868\u793a\u8981\u6d4b\u8bd5\u7684\u5355\u4e2a\u529f\u80fd\u5355\u5143\u3002\u7f16\u5199 \u4ee5\u63cf\u8ff0\u8be5\u51fd\u6570\u7684\u9884\u671f\u884c\u4e3a\u3002\u4f8b\u5982\uff0c\u8be5\u7ec4\u4ef6\u663e\u793a\u201cHello\uff0c World\uff01\u201d\uff0c\u56e0\u6b64\u8be5\u5757\u4f1a\u6d4b\u8bd5 hello \u7ec4\u4ef6\u662f\u5426\u663e\u793a\u95ee\u5019\u8bed\u3002<code>it<\/code><code>it<\/code><code>hello<\/code><code>it<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>it('displays greeting', () =&gt; {\n    ...\n});<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u521b\u5efa\u6d4b\u8bd5\u7ec4\u4ef6<\/h3>\n\n\n\n<p>\u8be5\u6d4b\u8bd5\u4f7f\u7528\u5bfc\u5165\u7684\u65b9\u6cd5\u521b\u5efa\u8981\u6d4b\u8bd5\u7684\u7ec4\u4ef6\u7684\u5b9e\u4f8b\uff0c\u5728\u672c\u4f8b\u4e2d\u4e3a .<code>createElement<\/code><code>c-hello<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>const element = createElement(\"c-hello\", {\n  is: Hello,\n});<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u5c06\u6d4b\u8bd5\u7ec4\u4ef6\u6dfb\u52a0\u5230 DOM \u4e2d<\/h3>\n\n\n\n<p>\u7136\u540e\uff0c\u6d4b\u8bd5\u8c03\u7528\u4ee5\u5c06\u7ec4\u4ef6\u6dfb\u52a0\u5230\u6d4b\u8bd5\u7684 \u7248\u672c \u4e2d\u3002<code>appendChild<\/code><code>document<\/code><\/p>\n\n\n\n<p>\u8c03\u7528\u5c06\u7ec4\u4ef6\u63d2\u5165\u5230 DOM \u548c\u751f\u547d\u5468\u671f\u94a9\u5b50\u4e2d\uff0c\u7136\u540e\u88ab\u8c03\u7528\u3002<code>appendChild()<\/code><code>connectedCallback()<\/code><code>renderedCallback()<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>document.body.appendChild(element);<\/code><\/pre>\n\n\n\n<p>\u4e0b\u4e00\u6b65\u662f\u4f7f\u7528\u6807\u51c6\u7684 DOM \u67e5\u8be2\u65b9\u6cd5\u5728 DOM \u4e2d\u641c\u7d22\u5143\u7d20\u3002\u7528\u4f5c\u67e5\u8be2\u7684\u7236\u7ea7\u3002\u8fd9\u662f\u4e00\u4e2a\u4ec5\u9650\u6d4b\u8bd5\u7684 API\uff0c\u53ef\u8ba9\u60a8\u67e5\u770b\u9634\u5f71\u8fb9\u754c\u4ee5\u68c0\u67e5\u7ec4\u4ef6\u7684\u9634\u5f71\u6811\u3002\u5b83\u7b49\u6548\u4e8e .<code>element.shadowRoot<\/code><code>this.template<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>const div = element.shadowRoot.querySelector(\"div\");<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f7f\u7528\u65ad\u8a00<\/h3>\n\n\n\n<p>\u6700\u540e\uff0c\u8be5\u8bed\u53e5\u662f\u5bf9\u6210\u529f\u6761\u4ef6\u7684\u65ad\u8a00\uff1a\u5143\u7d20\u7684\u6587\u672c\u4e3a\u201cHello\uff0c World\uff01\u201d<code>expect<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>const div = element.shadowRoot.querySelector(\"div\");\nexpect(div.textContent).toBe(\"Hello, World!\");<\/code><\/pre>\n\n\n\n<p>Jest \u652f\u6301\u8bb8\u591a\u5339\u914d\u5668\uff0c\u4f8b\u5982 \u548c\uff0c\u8fd9\u4f7f\u5f97\u68c0\u67e5\u503c\u662f\u5426\u6ee1\u8db3\u6761\u4ef6\u53d8\u5f97\u5bb9\u6613\u3002\u8bf7\u53c2\u89c1\u00a0<code>jestjs.io\/docs\/en\/expect<\/code>\u3002<code>toBetoMatchObject<\/code><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6d4b\u8bd5\u5f02\u6b65 DOM \u66f4\u65b0<\/h2>\n\n\n\n<p>\u5f53 Lightning Web \u7ec4\u4ef6\u7684\u72b6\u6001\u53d1\u751f\u53d8\u5316\u65f6\uff0cDOM \u4f1a\u5f02\u6b65\u66f4\u65b0\u3002\u82e5\u8981\u786e\u4fdd\u6d4b\u8bd5\u5728\u8bc4\u4f30\u7ed3\u679c\u4e4b\u524d\u7b49\u5f85\u66f4\u65b0\u5b8c\u6210\uff0c\u8bf7\u8fd4\u56de\u5df2\u89e3\u6790\u7684 Promise\u3002\u5c06\u6d4b\u8bd5\u4ee3\u7801\u7684\u5176\u4f59\u90e8\u5206\u94fe\u63a5\u5230\u89e3\u6790\u7684 Promise\u3002Jest \u7b49\u5f85 Promise \u94fe\u5b8c\u6210\uff0c\u7136\u540e\u518d\u7ed3\u675f\u6d4b\u8bd5\u3002\u5982\u679c Promise \u4ee5\u62d2\u7edd\u72b6\u6001\u7ed3\u675f\uff0c\u5219 Jest \u65e0\u6cd5\u901a\u8fc7\u6d4b\u8bd5\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>test(\"element does not have slds-icon class when bare\", () =&gt; {\n  const element = createElement(\"one-primitive-icon\", { is: PrimitiveIcon });\n  document.body.appendChild(element);\n  \/\/ Property value is assigned after the component is inserted into the DOM\n  element.variant = \"bare\";\n\n  \/\/ Use a promise to wait for asynchronous changes to the DOM\n  return Promise.resolve().then(() =&gt; {\n    expect(element.classList).not.toContain(\"slds-icon\");\n  });\n});<\/code><\/pre>\n\n\n\n<p>\u8c03\u7528\u5c06\u7ec4\u4ef6\u63d2\u5165\u5230 DOM \u548c\u751f\u547d\u5468\u671f\u94a9\u5b50\u4e2d\uff0c\u7136\u540e\u88ab\u8c03\u7528\u3002\u7136\u540e\uff0c\u8be5\u793a\u4f8b\u5728\u8c03\u7528\u540e\u8bbe\u7f6e\u5143\u7d20\u503c\uff0c\u8fd9\u7c7b\u4f3c\u4e8e<em>\u5728<\/em>\u5c06\u7ec4\u4ef6\u63d2\u5165 DOM \u540e\u7531\u53e6\u4e00\u4e2a\u65b9\u6cd5\u6216\u7528\u6237\u4ea4\u4e92\u8bbe\u7f6e\u5c5e\u6027\u7684\u60c5\u51b5\u3002\u5728\u8fd9\u4e9b\u60c5\u51b5\u4e0b\uff0c\u8bf7\u4f7f\u7528 promise \u7b49\u5f85\u5f02\u6b65 DOM \u66f4\u65b0\u3002\u6709\u5173\u7ec4\u4ef6\u751f\u547d\u5468\u671f\u548c\u5448\u73b0\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u53c2\u89c1\u751f\u547d\u5468\u671f\u6d41\u3002<code>appendChild()connectedCallback()renderedCallback()appendChild()<\/code><\/p>\n\n\n\n<p>\u5982\u679c\u5728\u8c03\u7528\u4e4b\u524d\u8bbe\u7f6e\u4e86\u8be5\u5c5e\u6027\uff0c\u5219\u4f1a\u540c\u6b65\u5448\u73b0\u7ec4\u4ef6\u3002\u5728\u8c03\u7528\u4e4b\u524d\u8bbe\u7f6e\u8be5\u5c5e\u6027\u65f6\uff0c\u65e0\u9700\u7b49\u5f85\u5f02\u6b65\u66f4\u65b0\u6216\u8fd4\u56de promise\u3002<code>appendChild()<\/code><code>appendChild()<\/code><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"write-jest-tests-for-lightning-web-components-that-use-the-wire-service\">\u4e3a\u4f7f\u7528 Wire Service \u7684 Lightning Web \u7ec4\u4ef6\u7f16\u5199 Jest \u6d4b\u8bd5<\/h2>\n\n\n\n<p>\u7ec4\u4ef6\u4f7f\u7528\u7ebf\u8def\u670d\u52a1\u4ece Salesforce \u83b7\u53d6\u6570\u636e\u3002\u82e5\u8981\u6d4b\u8bd5\u8fd9\u4e9b\u7ec4\u4ef6\u5982\u4f55\u5904\u7406\u6765\u81ea\u7ebf\u8def\u670d\u52a1\u7684\u6570\u636e\u548c\u9519\u8bef\uff0c\u8bf7\u4f7f\u7528\u6d4b\u8bd5\u5b9e\u7528\u7a0b\u5e8f\u3002<code>@salesforce\/sfdx-lwc-jest<\/code><\/p>\n\n\n\n<p>\u6d4b\u8bd5\u4f7f\u7528\u7684\u8f93\u5165\u4e0d\u5e94\u4f9d\u8d56\u4e8e\u5916\u90e8\u4ee3\u7801\u6216\u6570\u636e\uff0c\u60a8\u5fc5\u987b\u5bf9\u5176\u8fdb\u884c\u5b8c\u5168\u63a7\u5236\u3002\u4ece\u4e2d\u5bfc\u5165\u6d4b\u8bd5\u5b9e\u7528\u7a0b\u5e8f API \u4ee5\u6a21\u62df\u6570\u636e\uff0c\u4ee5\u4fbf\u6d4b\u8bd5\u4e0d\u4f9d\u8d56\u4e8e\u8fdc\u7a0b\u8c03\u7528\u6216\u670d\u52a1\u5668\u5ef6\u8fdf\u7b49\u4e0d\u53ef\u9884\u6d4b\u56e0\u7d20\u3002<code>sfdx-lwc-jest<\/code><\/p>\n\n\n\n<p>\u8be5\u5b9e\u7528\u7a0b\u5e8f\u6709\u4e09\u4e2a\u9002\u914d\u5668\u7528\u4e8e\u6a21\u62df\u7ebf\u8def\u670d\u52a1\u6570\u636e\uff1a\u901a\u7528\u7ebf\u8def\u9002\u914d\u5668\u3001Lightning \u6570\u636e\u670d\u52a1 \uff08LDS\uff09 \u7ebf\u8def\u9002\u914d\u5668\u548c Apex \u7ebf\u8def\u9002\u914d\u5668\u3002<code>sfdx-lwc-jest<\/code><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8c03\u7528 API \u65f6\uff0c\u901a\u7528\u9002\u914d\u5668\u4f1a\u6309\u9700\u53d1\u51fa\u6570\u636e\u3002\u5b83\u4e0d\u5305\u542b\u6709\u5173\u6570\u636e\u672c\u8eab\u7684\u4efb\u4f55\u989d\u5916\u4fe1\u606f\u3002<code>emit()<\/code><\/li>\n\n\n\n<li>LDS \u9002\u914d\u5668\u6a21\u62df Lightning \u6570\u636e\u670d\u52a1\u884c\u4e3a\uff0c\u5e76\u5305\u542b\u6709\u5173\u6570\u636e\u5c5e\u6027\u7684\u4fe1\u606f\u3002<\/li>\n\n\n\n<li>Apex \u7ebf\u8def\u9002\u914d\u5668\u6a21\u62df\u5bf9 Apex \u65b9\u6cd5\u7684\u8c03\u7528\uff0c\u5e76\u5305\u542b\u4efb\u4f55\u9519\u8bef\u72b6\u6001\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u6ce8\u610f<\/p>\n\n\n\n<p>\u5982\u679c\u60a8\u672a\u4f7f\u7528\u8be5\u5b9e\u7528\u7a0b\u5e8f\u6765\u4f7f\u7528 Salesforce DX\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528\u6d4b\u8bd5\u5b9e\u7528\u7a0b\u5e8f\u5bfc\u5165\u9002\u914d\u5668\u3002\u4f46\u662f\uff0c\u6211\u4eec\u5efa\u8bae\u4f7f\u7528\u96c6\u6210\u5f00\u53d1\u4f53\u9a8c\u3002<code>sfdx-lwc-jest<\/code><code>@salesforce\/wire-service-jest-util<\/code><code>sfdx-lwc-jest<\/code><\/p>\n\n\n\n<p>\u82e5\u8981\u63a7\u5236\u6d4b\u8bd5\uff0c\u8bf7\u521b\u5efa\u4e00\u4e2a JSON \u6587\u4ef6\u6765\u5b9a\u4e49\u7ec4\u4ef6\u6240\u9700\u7684\u6570\u636e\uff0c\u800c\u4e0d\u662f\u4ece Salesforce \u83b7\u53d6\u6570\u636e\u3002<\/p>\n\n\n\n<p>\u82e5\u8981\u4f7f\u7528\u7ebf\u8def\u670d\u52a1\u6d4b\u8bd5\u5b9e\u7528\u7a0b\u5e8f\uff0c\u8bf7\u6309\u7167\u4ee5\u4e0b\u9ad8\u7ea7\u6b65\u9aa4\u64cd\u4f5c\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5728\u7ec4\u4ef6\u5305\u4e2d\uff0c\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a \u7684\u6587\u4ef6\u5939\u548c\u4e00\u4e2a\u540d\u4e3a \u7684 JavaScript \u7c7b\u3002\u6700\u4f73\u505a\u6cd5\u662f\u4ee5\u7ec4\u4ef6\u547d\u540d\u6587\u4ef6\uff0c\u540e\u8ddf .<code>__tests__<\/code><code>componentName.test.js<\/code><code>.test.js<\/code><\/li>\n\n\n\n<li>\u5728\u6587\u4ef6\u5939\u4e2d\uff0c\u521b\u5efa\u4e00\u4e2a\u6587\u4ef6\u5939\u548c\u4e00\u4e2a\u540d\u4e3a .<code>__tests__<\/code><code>data<\/code><code>_wireAdapter_.json<\/code>\n<ol class=\"wp-block-list\">\n<li>\u5728 JSON \u6587\u4ef6\u4e2d\uff0c\u6a21\u62df\u7535\u7ebf\u9002\u914d\u5668\u53d1\u51fa\u7684\u6570\u636e\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u6709\u7ebf\u9002\u914d\u5668\u662f LDS \u6709\u7ebf\u9002\u914d\u5668\uff0c\u8bf7\u4f7f\u7528\u8bbf\u95ee\u6709\u7ebf\u9002\u914d\u5668\u6240\u57fa\u4e8e\u7684 UI API\u00a0\u7684 REST \u5ba2\u6237\u7aef\u83b7\u53d6\u6570\u636e\u5feb\u7167\u3002\u8fd9\u79cd\u65b9\u6cd5\u6bd4\u624b\u52a8\u7f16\u5199 JSON \u66f4\u51c6\u786e\u3002<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li>\u5728\u6587\u4ef6\u4e2d\uff1a<code>componentName.test.js<\/code>\n<ol class=\"wp-block-list\">\n<li>\u5bfc\u5165\u88ab\u6d4b\u5143\u4ef6\u53ca\u5176\u7535\u7ebf\u9002\u914d\u5668\u3002\u6d4b\u8bd5\u5fc5\u987b\u5f15\u7528\u4e0e\u88ab\u6d4b\u7ec4\u4ef6\u76f8\u540c\u7684\u7535\u7ebf\u9002\u914d\u5668\u3002<\/li>\n\n\n\n<li>\u4ece JSON \u6587\u4ef6\u5bfc\u5165\u6a21\u62df\u6570\u636e\u3002<\/li>\n\n\n\n<li>\u53d1\u51fa\u6a21\u62df\u6570\u636e\u3002<\/li>\n\n\n\n<li>\u9a8c\u8bc1\u7ec4\u4ef6\u662f\u5426\u6536\u5230\u4e86\u6a21\u62df\u6570\u636e\u3002<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">\u88ab\u6d4b\u7ec4\u4ef6<\/h2>\n\n\n\n<p>\u6211\u4eec\u7684\u793a\u4f8b\u7ec4\u4ef6\u662f\u4ea7\u54c1\u5361\u7ec4\u4ef6\u3002<\/p>\n\n\n\n<p>\u4ea7\u54c1\u5361\u7ec4\u4ef6\u663e\u793a\u4ea7\u54c1\u53ca\u5176\u540d\u79f0\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;!-- productCard.html --&gt;\n&lt;template&gt;\n  &lt;div class=\"content\"&gt;\n    &lt;template lwc:if={product}&gt;         \n        &lt;div class=\"name\"&gt;         \n          &lt;div&gt;Name:&lt;\/div&gt;\n          &lt;div&gt;{name}&lt;\/div&gt;\n        &lt;\/div&gt;\n    &lt;\/template&gt;\n  &lt;\/div&gt;\n&lt;\/template&gt;<\/code><\/pre>\n\n\n\n<p>\u5728\u7ec4\u4ef6\u7684 JavaScript \u6587\u4ef6\u4e2d\uff0c\u4fee\u9970\u5668\u6307\u793a\u7ebf\u8def\u670d\u52a1\u4f7f\u7528\u7ebf\u8def\u9002\u914d\u5668\u6765\u8bbe\u7f6e\u8bb0\u5f55\u6570\u636e\u3002\u5b83\u88c5\u9970\u51fd\u6570\uff0c\u8be5\u51fd\u6570\u63a5\u6536\u5177\u6709\u9519\u8bef\u6216\u6570\u636e\u5c5e\u6027\u7684\u5bf9\u8c61\u3002<code>@wire<\/code><code>getRecord<\/code><code>wiredRecord<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ productCard.js\nimport { LightningElement, wire } from \"lwc\";\n\n\/\/ Wire adapter to load records.\nimport { getRecord } from \"lightning\/uiRecordApi\";\n\nexport default class ProductCard extends LightningElement {\n  \/\/ Id of Product__c to display.\n  recordId;\n\n  \/\/ Product__c to display\n  product;\n\n  \/\/ Product__c field values to display\n  name = \"\";\n\n  @wire(getRecord, { recordId: \"$recordId\", fields: &#91;\"Product.Name\"] })\n  wiredRecord({ data }) {\n    if (data) {\n      this.product = data;\n      this.name = data.fields.Name.value;\n    }\n  }\n}<\/code><\/pre>\n\n\n\n<p>\u63d0\u793a<\/p>\n\n\n\n<p>lwc-recipes\u00a0\u5b58\u50a8\u5e93\u63d0\u4f9b\u4e86\u4f7f\u7528\u6709\u7ebf\u670d\u52a1\u7684\u51e0\u4e2a\u7ec4\u4ef6\u7684\u793a\u4f8b\uff0c\u5176\u4e2d\u5305\u62ec Jest \u6d4b\u8bd5\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6a21\u62df\u6570\u636e<\/h2>\n\n\n\n<p>\u5728\u6587\u4ef6\u5939\u4e2d\uff0c\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a \u7684\u6587\u4ef6\u5939\u3002\u5728\u6587\u4ef6\u5939\u4e2d\uff0c\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a \u7684\u6587\u4ef6\uff0c\u8be5\u6587\u4ef6\u4e0e\u7535\u7ebf\u9002\u914d\u5668\u540c\u540d\u3002\u5b9a\u4e49\u7ec4\u4ef6\u671f\u671b\u4ece\u670d\u52a1\u5668\u83b7\u5f97\u7684\u6570\u636e\u3002\u60a8\u53ef\u4ee5\u81ea\u5df1\u7f16\u5199 JSON\uff0c\u4f46\u8fd9\u53ef\u80fd\u4f1a\u53d8\u5f97\u56f0\u96be\u4e14\u5bb9\u6613\u51fa\u9519\u3002\u6700\u4f73\u505a\u6cd5\u662f\u4f7f\u7528\u8bbf\u95ee\u00a0UI API\u00a0\u7684 REST \u5ba2\u6237\u7aef\u83b7\u53d6\u6570\u636e\u5feb\u7167\u3002\u4f8b\u5982\uff0c\u6b64\u6570\u636e\u662f\u6765\u81ea \u7684\u54cd\u5e94\uff0c\u8be5\u54cd\u5e94\u662f\u652f\u6301\u7535\u7ebf\u9002\u914d\u5668\u7684\u8d44\u6e90\u3002<code>__tests__datadatagetRecord.json\/ui-api\/records\/{recordId}getRecord<\/code><\/p>\n\n\n\n<p>\u6211\u4eec\u7684\u6a21\u62df\u6570\u636e\u4ec5\u5b9a\u4e49\u8bb0\u5f55\u4e2d\u7684\u5b57\u6bb5\u3002\u5728\u5b9e\u9645\u6d4b\u8bd5\u4e2d\uff0c\u6a21\u62df\u7ec4\u4ef6\u6240\u9700\u7684\u6240\u6709\u6570\u636e\u3002<code>Name<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>{\n  \"fields\": {\n    \"Name\": {\n      \"value\": \"DYNAMO X1\"\n    }\n  }\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u521b\u5efa JavaScript \u6d4b\u8bd5<\/h2>\n\n\n\n<p>\u5355\u5143\u6d4b\u8bd5\u68c0\u67e5\u4ea7\u54c1\u5361\u662f\u5426\u663e\u793a\u4ea7\u54c1\u540d\u79f0\u3002<\/p>\n\n\n\n<p>\u6d4b\u8bd5\u5fc5\u987b\u5bfc\u5165\u88ab\u6d4b\u7ec4\u4ef6\u4e2d\u4f7f\u7528\u7684\u7535\u7ebf\u9002\u914d\u5668\u3002\u5728\u8fd9\u91cc\uff0c\u8fd9\u662f\u6a21\u5757\u4e2d\u7684\u7535\u7ebf\u9002\u914d\u5668\u3002\u6d4b\u8bd5\u8fd8\u5fc5\u987b\u5bfc\u5165\u6a21\u62df\u6570\u636e\u4ee5\u901a\u8fc7\u7535\u7ebf\u9002\u914d\u5668\u53d1\u9001\u3002<code>getRecord<\/code><code>lightning\/uiRecordApi<\/code><\/p>\n\n\n\n<p>\u8be5\u6d4b\u8bd5\u521b\u5efa\u7ec4\u4ef6\u5e76\u5c06\u5176\u9644\u52a0\u5230 DOM\u3002\u4ec5\u5f53\u7ec4\u4ef6\u8fde\u63a5\u5230 DOM \u65f6\uff0c\u7ec4\u4ef6\u624d\u4f1a\u63a5\u6536\u6709\u5173\u6570\u636e\u7684\u66f4\u65b0\u3002\u7ec4\u4ef6\u8fde\u63a5\u540e\uff0c\u5c06\u6a21\u62df\u6570\u636e\u4f20\u9012\u7ed9\u7535\u7ebf\u9002\u914d\u5668\u4e0a\u7684\u51fd\u6570\u3002<code>emit<\/code><\/p>\n\n\n\n<p>\u53d1\u51fa\u6a21\u62df\u6570\u636e\u540e\uff0cif \u6216 change \u7ec4\u4ef6\u5c06\u91cd\u65b0\u5448\u73b0\u3002\u89e3\u6790 promise \u4ee5\u786e\u4fdd\u6d4b\u8bd5\u4ee3\u7801\u5728 DOM \u66f4\u65b0\u4e3a\u65b0\u6570\u636e\u540e\u8fd0\u884c\u3002\u8be5\u4ee3\u7801\u9a8c\u8bc1\u6a21\u62df\u6570\u636e\u4e2d\u7684\u4ea7\u54c1\u540d\u79f0\u5b57\u6bb5\u662f\u5426\u5728 DOM \u4e2d\u6b63\u786e\u8f93\u51fa\u3002<code>product<\/code><code>name<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ productCard.test.js\nimport { createElement } from \"lwc\";\nimport ProductCard from \"c\/productCard\";\nimport { getRecord } from \"lightning\/uiRecordApi\";\n\n\/\/ Import mock data to send through the wire adapter.\nconst mockGetRecord = require(\".\/data\/getRecord.json\");\n\ntest(\"displays product name field\", () =&gt; {\n  const element = createElement(\"c-product_filter\", { is: ProductCard });\n  document.body.appendChild(element);\n\n  \/\/ Emit mock record into the wired field\n  getRecord.emit(mockGetRecord);\n\n  \/\/ Resolve a promise to wait for a rerender of the new content.\n  return Promise.resolve().then(() =&gt; {\n    const content = element.shadowRoot.querySelector(\".content\");\n    const nameField = mockGetRecord.fields.Name.value;\n    expect(content.textContent).toBe(`Name:${nameField}`);\n  });\n});<\/code><\/pre>\n\n\n\n<p>\u6ce8\u610f<\/p>\n\n\n\n<p>\u5728 Spring &#8217;21 \u53ca\u66f4\u65e9\u7248\u672c\u4e2d\uff0c\u60a8\u5fc5\u987b\u6ce8\u518c\u6b63\u5728\u6d4b\u8bd5\u7684\u7535\u7ebf\u9002\u914d\u5668\u3002\u8be5\u4ee3\u7801\u4ecd\u7136\u6709\u6548\uff0c\u4f46\u4e0d\u5efa\u8bae\u8fd9\u6837\u505a\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"dom-inspection-tests-are-subject-to-change\">DOM \u68c0\u67e5\u6d4b\u8bd5\u53ef\u80fd\u4f1a\u53d1\u751f\u53d8\u5316<\/h2>\n\n\n\n<p>Lightning Experience \u4e2d HTML\u3001CSS \u548c DOM \u7684\u5185\u5bb9\u548c\u7ed3\u6784\u53ef\u80fd\u968f\u65f6\u66f4\u6539\uff0c\u4e0d\u80fd\u88ab\u89c6\u4e3a\u7a33\u5b9a\u7684 API\u3002\u4f7f\u7528 Selenium WebDriver \u7b49\u5de5\u5177\u8fdb\u5165\u7ec4\u4ef6\u5185\u90e8\u7684 UI \u6d4b\u8bd5\u9700\u8981\u6301\u7eed\u7ef4\u62a4\u3002<\/p>\n\n\n\n<p>Salesforce \u4ece\u4e0d\u4fdd\u8bc1\u5411\u540e\u517c\u5bb9 HTML\u3001CSS \u6216 DOM\u3002\u6211\u4eec\u6307\u51fa\uff0c\u968f\u7740 Lightning Experience \u968f\u7740\u73b0\u4ee3 Web \u6807\u51c6\u7684\u53d1\u5c55\u800c\u4e0d\u65ad\u53d8\u5316\uff0c\u8fd9\u4e9b\u6d4b\u8bd5\u7684\u8106\u5f31\u6027\u3002\u6211\u4eec\u4e86\u89e3\u60a8\u4ece\u81ea\u52a8\u5316 UI \u6d4b\u8bd5\u4e2d\u83b7\u5f97\u7684\u4ef7\u503c\uff0c\u4ee5\u53ca\u7531\u6b64\u7ed9\u60a8\u5e26\u6765\u7684\u7ef4\u62a4\u8d1f\u62c5\u3002<\/p>\n\n\n\n<p>Lightning Web \u7ec4\u4ef6\u57fa\u4e8e Web \u7ec4\u4ef6\u6807\u51c6\u3002\u8be5\u6807\u51c6\u5305\u62ec\u00a0Shadow DOM\uff0c\u5b83\u5bf9\u5176\u4ed6\u7ec4\u4ef6\u9690\u85cf\u7ec4\u4ef6\u7684\u6807\u8bb0\u3001\u6837\u5f0f\u548c\u884c\u4e3a\u3002\u8fd9\u79cd\u5c01\u88c5\u7ed9 UI \u6d4b\u8bd5\u5e26\u6765\u4e86\u6311\u6218\uff0c\u5c24\u5176\u662f\u4f9d\u8d56\u4e8e\u5168\u5c40\u641c\u7d22 DOM \u6216\u8fdb\u5165\u81ea\u5b9a\u4e49\u5143\u7d20\u5185\u90e8\u7684\u6d4b\u8bd5\u3002<\/p>\n\n\n\n<p>\u8be5\u5c5e\u6027\u5c01\u88c5\u5143\u7d20\u7684 DOM \u5b50\u6811\u3002\u8fd9\u5728 DOM \u4e2d\u8868\u793a\u4e3a \u4e00\u4e2a\u3002 \u8fd9\u4e2a DOM \u5b50\u6811\u4e2d\u7684\u5143\u7d20\u4e0d\u80fd\u901a\u8fc7\u4f20\u7edf\u7684 DOM \u67e5\u8be2\u65b9\u6cd5\u83b7\u5f97\u3002\u7531 Lightning Web \u7ec4\u4ef6\u5448\u73b0\u7684\u5143\u7d20\u5305\u542b\u6b64\u65b0\u5c5e\u6027\uff0c\u5e76\u4e14\u8fd9\u4e9b\u5143\u7d20\u5728\u6b63\u5e38\u7684 DOM \u67e5\u8be2\u4e2d\u662f\u9690\u85cf\u7684\u3002<code>shadowRoot<\/code><code>shadowRoot<\/code><code>DocumentFragment<\/code><code>shadowRoot<\/code><\/p>\n\n\n\n<p>\u6211\u4eec\u5efa\u8bae\u4f7f\u7528 Jest \u5bf9\u5355\u4e2a Lightning Web \u7ec4\u4ef6\u8fdb\u884c\u5355\u5143\u6d4b\u8bd5\u3002<\/p>\n\n\n\n<p>\u4ec5\u5c06 Selenium WebDriver \u7b49 UI \u6d4b\u8bd5\u5de5\u5177\u7528\u4e8e\u7aef\u5230\u7aef\u6d4b\u8bd5\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5f00\u73a9\u7b11\u6d4b\u8bd5<\/h2>\n\n\n\n<p>\u8981\u4e3a Lightning Web \u7ec4\u4ef6\u7f16\u5199\u5355\u5143\u6d4b\u8bd5\uff0c\u8bf7\u4f7f\u7528\u00a0sfdx-lwc-jest\u3002<\/p>\n\n\n\n<p>\u5728 Jest \u6d4b\u8bd5\u4e0a\u4e0b\u6587\u4e2d\uff0c\u4ee3\u7801\u53ef\u4ee5\u4f7f\u7528\u88ab\u6d4b\u5143\u7d20\u7684\u5c5e\u6027\u6765\u8bbf\u95ee\u5f71\u5b50\u6811\u3002\u8be5\u5c5e\u6027\u5c01\u88c5\u5143\u7d20\u7684\u5f71\u5b50\u6811\u3002<code>shadowRoot<\/code><code>shadowRoot<\/code><\/p>\n\n\n\n<p>\u6b64\u4ee3\u7801\u5728\u201c\u793a\u4f8b\u201d\u90e8\u5206\u8bbf\u95ee\u7ec4\u4ef6\u7684\u5f71\u5b50\u6811\u3002<code>&lt;div&gt;<\/code><code>&lt;lightning-lwc-parent&gt;<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>const element = createElement(\"c-lightning-lwc-parent\", { is: LightningLwcParent });\ndocument.body.appendChild(element);\nconst div = element.shadowRoot.querySelector(\".in-the-shadow\");<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Selenium WebDriver \u6d4b\u8bd5<\/h2>\n\n\n\n<p>\u5bf9\u4e8e\u7aef\u5230\u7aef UI \u6d4b\u8bd5\uff0c\u8bf7\u8c03\u6574\u73b0\u6709\u6d4b\u8bd5\u4ee5\u4f7f\u7528 Shadow DOM\u3002\u8c03\u6574\u6d4b\u8bd5\u56e0\u5de5\u5177\u800c\u5f02\uff0c\u7b56\u7565\u4e5f\u5728\u8fc5\u901f\u53d1\u5c55\u3002\u672c\u6587\u662f Selenium WebDriver \u7684\u4e00\u4e2a\u5f88\u597d\u7684\u4f8b\u5b50\u3002<\/p>\n\n\n\n<p>\u6b63\u5982\u672c\u6587\u6240\u8ba8\u8bba\u7684\uff0c\u5168\u5c40\u67e5\u8be2\u901a\u8fc7\u5931\u8d25\u3002\u8981\u5728 Lightning Web \u7ec4\u4ef6\u7684\u5f71\u5b50\u6811\u4e2d\u67e5\u627e\u5143\u7d20\uff0c\u8bf7\u5728\u5ba2\u6237\u7aef\u4e0a\u6267\u884c JavaScript \u4ee5\u67e5\u8be2\u7ec4\u4ef6\u7684\u5c5e\u6027\u3002<code>WebDriver.findElement()<\/code><code>shadowRoot<\/code><\/p>\n\n\n\n<p>\u6ce8\u610f<\/p>\n\n\n\n<p>\u672c\u6587\u6709\u4e00\u4e2a\u5c4f\u5e55\u622a\u56fe\uff0c\u663e\u793a\u4e86 Chrome \u5f00\u53d1\u8005\u5de5\u5177\u4e2d\u7684 DOM \u5143\u7d20\u3002\u5c4f\u5e55\u622a\u56fe\u663e\u793a\u4e86\u4e00\u4e2a\u6587\u6863\u7247\u6bb5\uff0c\u5b83\u662f\u7ec4\u4ef6\u5f71\u5b50\u6811\u7684\u9876\u90e8\u8282\u70b9\u3002\u5982\u679c\u60a8\u5728 Chrome \u5f00\u53d1\u8005\u5de5\u5177\u4e2d\u67e5\u770b Lightning Web \u7ec4\u4ef6\uff0c\u5219\u770b\u4e0d\u5230 \u56e0\u4e3a LWC \u4f7f\u7528\u5f71\u5b50 DOM polyfill\u3002Salesforce \u652f\u6301\u67d0\u4e9b\u672a\u5b9e\u73b0 Shadow DOM Web \u6807\u51c6\u7684\u6d4f\u89c8\u5668\u3002polyfill \u5728\u8fd9\u4e9b\u6d4f\u89c8\u5668\u4e2d\u63d0\u4f9b\u4e86\u4e00\u4e2a\u5f71\u5b50 DOM\u3002\u8981\u5728\u9875\u9762\u4e0a\u67e5\u627e Lightning Web \u7ec4\u4ef6\uff0c\u8bf7\u67e5\u627e\u5305\u542b\u8fde\u5b57\u7b26\u7684\u5143\u7d20\u540d\u79f0\u3002\u9009\u62e9\u5143\u7d20\u5e76\u5728\u63a7\u5236\u53f0\u4e2d\u8fd0\u884c\u3002Lightning Web \u7ec4\u4ef6\u8fd4\u56de .<code>#shadow-root<\/code><code>#shadow-root<\/code><code>$0.shadowRoot<\/code><code>#document-fragment<\/code><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"jest-test-patterns-and-mock-dependencies\">Jest \u6d4b\u8bd5\u6a21\u5f0f\u548c\u6a21\u62df\u4f9d\u8d56\u5173\u7cfb<\/h2>\n\n\n\n<p>\u5728\u4f7f\u7528 Jest \u8fdb\u884c\u6d4b\u8bd5\u65f6\uff0c\u8bf7\u9075\u5faa\u8fd9\u4e9b\u6a21\u5f0f\u548c\u505a\u6cd5\u6765\u9694\u79bb\u884c\u4e3a\u5e76\u6700\u5927\u9650\u5ea6\u5730\u63d0\u9ad8\u5355\u5143\u6d4b\u8bd5\u7684\u6548\u7387\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6d4b\u8bd5\u5c5e\u6027\u66f4\u6539<\/h2>\n\n\n\n<p>\u8ba9\u6211\u4eec\u4ece\u4e00\u4e2a\u7b80\u5355\u7684\u5c5e\u6027\u66f4\u6539\u5f00\u59cb\u3002\u5c5e\u6027\u66f4\u6539\u65f6\u7684\u7ec4\u4ef6\u91cd\u65b0\u6e32\u67d3\u662f\u5f02\u6b65\u7684\uff0c\u56e0\u6b64\u5411 DOM \u6dfb\u52a0\u67d0\u4e9b\u5185\u5bb9\u7684\u987a\u5e8f\u5e76\u4e0d\u603b\u662f\u53ef\u9884\u6d4b\u7684\u3002\u6211\u4eec\u5efa\u8bae\u60a8\u5728\u68c0\u67e5\u9884\u671f\u884c\u4e3a\u4e4b\u524d\uff0c\u7b49\u5f85\u503c\u66f4\u6539\u53cd\u6620\u5728 DOM \u4e2d\u3002\u4e00\u79cd\u6280\u672f\u4f7f\u7528\u8bed\u53e5\u5728\u9875\u9762\u5143\u7d20\u66f4\u6539\u540e\u68c0\u67e5\u503c\uff0c\u5982\u4e0b\u6240\u793a\uff1a<code>Promise.resolve()<\/code><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5c06\u7ec4\u4ef6\u6dfb\u52a0\u5230 DOM\u3002<\/li>\n\n\n\n<li>\u66f4\u6539\u5c5e\u6027\u503c\u3002<\/li>\n\n\n\n<li>\u7b49\u5f85\u7ec4\u4ef6\u901a\u8fc7\u8fd4\u56de\u503c\u91cd\u65b0\u5448\u73b0\u3002<code>Promise.resolve()<\/code><\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>it(\"Renders with Hello Matt\", () =&gt; {\n  const element = createElement(\"c-hello-component\", {\n    is: HelloComponent,\n  });\n  document.body.appendChild(element);\n\n  element.person = \"Matt\";\n\n  return Promise.resolve().then(() =&gt; {\n    const pTag = element.shadowRoot.querySelector(\"p\");\n    expect(pTag.textContent).toEqual(\"Hello, Matt!\");\n  });\n});<\/code><\/pre>\n\n\n\n<p>\u63d0\u793a<\/p>\n\n\n\n<p>\u6709\u5173\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605\u00a0Matt Goldspink \u5728 Vlocity \u64b0\u5199\u7684\u535a\u5ba2\u6587\u7ae0 Testing Lightning Web Components\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4f7f\u7528\u5c5e\u6027\u6d4b\u8bd5\u7ec4\u4ef6<\/h2>\n\n\n\n<p>\u4e3a\u4e86\u6269\u5c55\u6211\u4eec\u7684\u793a\u4f8b\uff0c\u8ba9\u6211\u4eec\u6dfb\u52a0\u4e00\u4e2a\u5c5e\u6027\u3002\u5c5e\u6027\u5141\u8bb8\u60a8\u5728\u6d4b\u8bd5\u4e2d\u66f4\u6539\u4e00\u4e2a\u503c\uff0c\u4ee5\u67e5\u770b\u66f4\u6539\u7684\u5448\u73b0\u65b9\u5f0f\u3002\u4f7f\u7528\u8bed\u53e5\u5728\u8c03\u7528\u4e4b\u524d\u8bbe\u7f6e\u5c5e\u6027\uff0c\u4f8b\u5982\uff1a<code>Object.assign()<\/code><code>appendChild<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Object.assign(element, attributes);\ndocument.body.appendChild(element);<\/code><\/pre>\n\n\n\n<p>\u4f8b\u5982\uff0c\u8ba9\u6211\u4eec\u5c06\u521d\u59cb\u6d4b\u8bd5\u4e2d\u7684\u80cc\u666f\u989c\u8272\u8bbe\u7f6e\u4e3a\u7ea2\u8272\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>it(\"Renders with Hello Matt\", () =&gt; {\n  const element = createElement(\"c-hello-component\", {\n    is: HelloComponent,\n  });\n  Object.assign(component, { backgroundColor: \"red\" });\n  document.body.appendChild(element);\n\n  element.person = \"Matt\";\n\n  return Promise.resolve().then(() =&gt; {\n    const pTag = element.shadowRoot.querySelector(\"p\");\n    expect(pTag.textContent).toEqual(\"Hello, Matt!\");\n  });\n});<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u5632\u7b11<\/h2>\n\n\n\n<p>\u5355\u5143\u6d4b\u8bd5\u53ef\u80fd\u6d89\u53ca\u7684\u4e0d\u4ec5\u4ec5\u662f\u5bf9\u7b80\u5355 UI \u5143\u7d20\u7684\u66f4\u65b0\u3002\u67d0\u4e9b\u4ee3\u7801\u4f9d\u8d56\u4e8e\u67d0\u4e9b\u4f9d\u8d56\u9879\u7684\u884c\u4e3a\uff0c\u4f8b\u5982\u5bfc\u5165\u7684\u6a21\u5757\u3001\u57fa\u672c Lightning \u7ec4\u4ef6\u548c\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\u3002\u4f46\u662f\uff0c\u60a8\u5e0c\u671b\u60a8\u7684\u4ee3\u7801\u5904\u4e8e\u4e00\u81f4\u7684\u73af\u5883\u4e2d\uff0c\u4e0d\u53d7\u670d\u52a1\u5668\u8c03\u7528\u3001\u6570\u636e\u5e93\u8bf7\u6c42\u6216\u8fdc\u7a0b\u8bbf\u95ee API \u7684\u53ef\u53d8\u884c\u4e3a\u548c\u8ba1\u65f6\u7684\u5f71\u54cd\u3002\u4ee5\u4e0b\u90e8\u5206\u5305\u62ec\u6709\u5173\u5355\u5143\u6d4b\u8bd5\u7684\u8fd9\u4e9b\u4f9d\u8d56\u9879\u7684\u6a21\u62df\u884c\u4e3a\u7684\u6307\u5357\u3002\u6a21\u62df\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u6d4b\u8bd5\u505a\u6cd5\uff0c\u7528\u4e8e\u9694\u79bb\u6b63\u5728\u6d4b\u8bd5\u7684\u4ee3\u7801\u7684\u884c\u4e3a\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u57fa\u672c Lightning \u7ec4\u4ef6<\/h2>\n\n\n\n<p>Salesforce \u5728\u00a0sfdx-lwc-jest \u5b58\u50a8\u5e93\u4e2d\u63d0\u4f9b\u4e86\u6a21\u62df\u7ec4\u4ef6\uff0c\u60a8\u53ef\u4ee5\u5728\u00a0lightning-stubs \u76ee\u5f55\u4e2d\u627e\u5230\u8fd9\u4e9b\u7ec4\u4ef6\u7684\u6e90\u4ee3\u7801\u3002\u5c06\u8fd9\u4e9b\u6a21\u62df\u7ec4\u4ef6\u7528\u4e8e\u5305\u542b\u57fa\u672c Lightning \u7ec4\u4ef6\u7684\u6d4b\u8bd5\u3002\u6a21\u62df\u7ec4\u4ef6\u4e0e\u5b9e\u9645\u7ec4\u4ef6\u7684 API \u5339\u914d\uff0c\u4f46\u4e0d\u5177\u5907\u6240\u6709\u529f\u80fd\uff0c\u56e0\u6b64\u5b83\u4eec\u53ef\u4ee5\u4f5c\u4e3a\u6d4b\u8bd5\u7684\u826f\u597d\u8d44\u6e90\u3002\u5373\u4f7f\u8fd9\u4e9b\u6a21\u62df\u7ec4\u4ef6\u4e0d\u4f1a\u89e6\u53d1\u4efb\u4f55\u4e8b\u4ef6\uff0c\u60a8\u4ecd\u7136\u53ef\u4ee5\u8c03\u7528\u5176\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\u3002<\/p>\n\n\n\n<p>\u4f8b\u5982\uff0c\u67e5\u770b\u00a0lwc-recipes \u5b58\u50a8\u5e93\u4e2d\u7684\u00a0<code>miscToastNotification.js<\/code>\u00a0\u793a\u4f8b\u3002\u4e3a\u4e86\u6a21\u62df\u7528\u6237\u8f93\u5165\uff0c\u5e38\u91cf\u5f15\u7528\u4e86 sfdx-lwc-jest \u63d0\u4f9b\u7684\u6a21\u62df\u5143\u7d20\u3002\u6211\u4eec\u4ecd\u7136\u53ef\u4ee5\u5728 DOM \u4e2d\u67e5\u8be2\u5b83\uff0c\u5e76\u4ece\u4e2d\u8c03\u5ea6\u4e00\u4e2a\u4e8b\u4ef6\u6765\u8c03\u7528\u6211\u4eec\u8fde\u63a5\u5230\u5b83\u7684\u5904\u7406\u7a0b\u5e8f\u3002\u6211\u4eec\u4f7f\u7528\u4e00\u4e2a\u6a21\u62df\u7ec4\u4ef6\u6765\u4fdd\u6301\u5bf9\u8f93\u5165\u503c\u7684\u63a7\u5236\uff0c\u56e0\u4e3a\u6211\u4eec\u53ea\u60f3\u6d4b\u8bd5\u901a\u77e5\u7684\u884c\u4e3a\u3002<code>inputTitleEl&lt;lightning-input>change<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ Select input field for simulating user input\nconst inputMessageEl = element.shadowRoot.querySelector('lightning-input&#91;data-id=\"messageInput\"]');\ninputMessageEl.value = TOAST_MESSAGE;\ninputMessageEl.dispatchEvent(new CustomEvent(\"change\"));<\/code><\/pre>\n\n\n\n<p>\u5728\u4f7f\u7528\u6211\u4eec\u7684\u6a21\u62df\u7ec4\u4ef6\u65f6\uff0c\u8bf7\u8bb0\u4f4f\u4ee5\u4e0b\u51e0\u70b9\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6211\u4eec\u5efa\u8bae\u60a8\u7684\u6d4b\u8bd5\u4e0d\u8981\u4f9d\u8d56\u4e8e\u63d2\u69fd\u7684\u5448\u73b0\u987a\u5e8f\u3002\u4f8b\u5982\uff0c\u5047\u8bbe\u6709\u4e24\u4e2a\u547d\u540d\u69fd\uff1a\u548c \u3002\u5982\u679c\u5b58\u5728\u9884\u671f\u5185\u5bb9\uff0c\u5219\u5373\u4f7f\u6a21\u62df\uff08\u6216\u771f\u5b9e\uff09\u7ec4\u4ef6\u4ea4\u6362\u4e86\u8fd9\u4e9b\u63d2\u69fd\u7684\u5448\u73b0\u987a\u5e8f\uff0c\u6d4b\u8bd5\u4e5f\u4f1a\u901a\u8fc7\u3002<code>actions<\/code><code>todos<\/code><\/li>\n\n\n\n<li>\u57fa\u672c Lightning \u7ec4\u4ef6\u5177\u6709\u4e00\u4e9b\u5c5e\u6027\uff0c\u8fd9\u4e9b\u5c5e\u6027\u4e0d\u4f1a\u53cd\u6620\u4e3a DOM \u4e2d\u7684\u5c5e\u6027\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u8bbe\u7f6e\u5c5e\u6027 \uff0c\u8be5\u5c5e\u6027\u7528\u4e8e\u786e\u5b9a\u8981\u7528\u4e8e\u6309\u94ae\u7684 SLDS \u7c7b\uff0c\u800c\u4e0d\u662f\u5448\u73b0\u7684\u503c\u3002\u8bbe\u8ba1\u6d4b\u8bd5\u7528\u4f8b\u4ee5\u8003\u8651\u6b64\u884c\u4e3a\uff0c\u5e76\u4e14\u4e0d\u8981\u5047\u5b9a\u6240\u6709\u5c5e\u6027\u90fd\u53cd\u6620\u4e3a\u5c5e\u6027\u3002<code>&lt;lightning-button&gt;<\/code><code>iconPosition<\/code><\/li>\n\n\n\n<li>\u8fd9\u4e9b\u6a21\u62df\u4e0d\u4f1a\u89e6\u53d1\u4efb\u4f55\u4e8b\u4ef6\uff0c\u4f46\u60a8\u53ef\u4ee5\u8c03\u7528\u5b83\u4eec\u3002<code>dispatchEvent()<\/code><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f<\/h2>\n\n\n\n<p>\u67e5\u770b\u76f8\u540c\u7684\u00a0<code>miscToastNotification.js<\/code>\u00a0\u793a\u4f8b\uff0c\u4e5f\u53ef\u4ee5\u770b\u5230\u4e00\u4e2a\u6a21\u62df\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\u3002\u6b64\u6d4b\u8bd5\u5b9a\u4e49\u591a\u4e2a\u5e38\u91cf\u503c\uff0c\u7136\u540e\u89e6\u53d1\u4e8b\u4ef6\uff0c\u5c06\u5e38\u91cf\u63d2\u5165\u5143\u7d20\u4e2d\u3002<code>ShowToastEventNamejest.fn()lightning-input<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>const TOAST_TITLE = \"The Title\";\nconst TOAST_MESSAGE = \"The Message\";\nconst TOAST_VARIANT = \"warning\";\n\n\/\/ Create initial element\nconst element = createElement(\"c-misc-toast-notification\", {\n  is: MiscToastNotification,\n});\ndocument.body.appendChild(element);\n\n\/\/ Mock handler for toast event\nconst handler = jest.fn();\n\/\/ Add event listener to catch toast event\nelement.addEventListener(ShowToastEventName, handler);<\/code><\/pre>\n\n\n\n<p>\u5728\u6d4b\u8bd5\u7ed3\u675f\u65f6\uff0c\u9a8c\u8bc1\u4e8b\u4ef6\u5904\u7406\u7a0b\u5e8f\u662f\u5426\u6309\u9884\u671f\u8c03\u7528\uff0c\u4ee5\u53ca\u662f\u5426\u4f7f\u7528\u6b63\u786e\u7684\u53c2\u6570\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>return Promise.resolve().then(() =&gt; {\n  \/\/ Check if toast event has been fired\n  expect(handler).toHaveBeenCalled();\n  expect(handler.mock.calls&#91;0]&#91;0].detail.title).toBe(TOAST_TITLE);\n  expect(handler.mock.calls&#91;0]&#91;0].detail.message).toBe(TOAST_MESSAGE);\n  expect(handler.mock.calls&#91;0]&#91;0].detail.variant).toBe(TOAST_VARIANT);\n});<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u6a21\u5757\u5bfc\u5165<\/h2>\n\n\n\n<p>\u82e5\u8981\u521b\u5efa\u5bf9\u6a21\u62df\u7ec4\u4ef6\u7684\u5f15\u7528\u4ee5\u66f4\u597d\u5730\u63a7\u5236\u7ec4\u4ef6\u884c\u4e3a\uff0c\u8bf7\u5728\u6587\u4ef6\u4e2d\u6dfb\u52a0\u00a0<code>moduleNameMapper<\/code>\u00a0\u8bbe\u7f6e\u3002\u8981\u67e5\u770b\u793a\u4f8b\uff0c\u8bf7\u67e5\u770b lwc-recipes \u5b58\u50a8\u5e93\u4e2d\u7684\u00a0<code>jest.config.js<\/code>\u00a0\u5982\u4f55\u5f15\u7528\u4e00\u4e9b\u5e26\u6709\u6a21\u5757\u540d\u79f0\u7684\u6a21\u62df\u7ec4\u4ef6\u3002<code>jest.config.js<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>const { jestConfig } = require(\"@salesforce\/sfdx-lwc-jest\/config\");\nmodule.exports = {\n  ...jestConfig,\n  moduleNameMapper: {\n    \"^@salesforce\/apex$\": \"&lt;rootDir&gt;\/force-app\/test\/jest-mocks\/apex\",\n    \"^lightning\/navigation$\": \"&lt;rootDir&gt;\/force-app\/test\/jest-mocks\/lightning\/navigation\",\n    \"^lightning\/platformShowToastEvent$\":\n      \"&lt;rootDir&gt;\/force-app\/test\/jest-mocks\/lightning\/platformShowToastEvent\",\n    \"^lightning\/uiRecordApi$\": \"&lt;rootDir&gt;\/force-app\/test\/jest-mocks\/lightning\/uiRecordApi\",\n  },\n};<\/code><\/pre>\n\n\n\n<p>\u73b0\u5728\uff0c\u8ba9\u6211\u4eec\u770b\u770b\u5982\u4f55\u5728 lwc-recipes \u5b58\u50a8\u5e93\u7684\u00a0<code>miscToastNotification.test.js<\/code>\u00a0\u4e2d\u4f7f\u7528\u6b64\u914d\u7f6e\u3002\u5b83\u6709\u4e00\u4e2a\u58f0\u660e\uff1a<code>import<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import { ShowToastEventName } from \"lightning\/platformShowToastEvent\";<\/code><\/pre>\n\n\n\n<p>\u5982\u679c\u6ca1\u6709\u8be5\u6761\u76ee\uff0c\u6b64\u8bed\u53e5\u5c06\u89e3\u6790\u4e3a\u5b58\u6839\u00a0https:\/\/github.com\/salesforce\/sfdx-lwc-jest\/blob\/master\/src\/lightning-stubs\/platformShowToastEvent\/platformShowToastEvent.js\u3002<code>moduleNameMapperimport<\/code><\/p>\n\n\n\n<p>\u4f7f\u7528\u8be5\u6761\u76ee\u65f6\uff0c\u6b64\u8bed\u53e5\u89e3\u6790\u4e3a jest-mocks \u81ea\u5b9a\u4e49\u5b58\u6839\u00a0https:\/\/github.com\/trailheadapps\/lwc-recipes\/blob\/master\/force-app\/test\/jest-mocks\/lightning\/platformShowToastEvent.js\u3002\u6a21\u62df\u5b58\u6839\u5177\u6709\u5411\u4e8b\u4ef6\u5bf9\u8c61\u6dfb\u52a0\u5176\u4ed6\u5c5e\u6027\u7684\u81ea\u5b9a\u4e49\u903b\u8f91\u3002<code>moduleNameMapperimport<\/code><\/p>\n\n\n\n<p>\u6ce8\u610f<\/p>\n\n\n\n<p>\u5982\u679c\u4f7f\u7528\u81ea\u5b9a\u4e49\u9009\u9879\u8986\u76d6\u7f3a\u7701\u6587\u4ef6\uff0c\u8bf7\u5c06\u8fd9\u4e9b\u503c\u4e0e \u4e2d\u5b9a\u4e49\u7684\u503c\u5408\u5e76\u3002<code>jest.config.js<\/code><code>setupFilesAfterEnv<\/code><code>@salesforce\/sfdx-lwc-jest\/config<\/code><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">@salesforce\u8303\u56f4\u7684\u5bfc\u5165<\/h2>\n\n\n\n<p>\u5728\u6d4b\u8bd5\u73af\u5883\u4e2d\uff0c\u7ec4\u4ef6\u53ef\u80fd\u65e0\u6743\u8bbf\u95ee\u751f\u4ea7\u67b6\u6784\u3002\u5bfc\u5165\u5bf9\u547d\u540d\u7a7a\u95f4\u7684\u5f15\u7528\u65f6\uff0c\u8bf7\u5728\u6d4b\u8bd5\u671f\u95f4\u5c06\u8fd4\u56de\u503c\u6a21\u62df\u4e3a\u5360\u4f4d\u7b26\u3002<\/p>\n\n\n\n<p>\u5728 Jest \u6d4b\u8bd5\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u00a0jest-transformer\u00a0\u5c06 import \u8bed\u53e5\u8f6c\u6362\u4e3a\u53d8\u91cf\u58f0\u660e\u3002\u8be5\u503c\u8bbe\u7f6e\u4e3a\u6807\u7b7e\u8def\u5f84\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u5206\u914d\u7684\u5b57\u7b26\u4e32\u503c\u4e3a \u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4e3a\u5bfc\u5165\u63d0\u4f9b\u81ea\u5df1\u7684\u503c\u3002\u6b64\u793a\u4f8b\u8fd4\u56de\u5b57\u7b26\u4e32\u800c\u4e0d\u662f \u3002<code>@salesforce\/labelmyImportc.specialLabeljest.mock()value set in testc.specialLabel<\/code><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import myImport from \"@salesforce\/label\/c.specialLabel\";\n\njest.mock(\n  \"@salesforce\/label\/c.specialLabel\",\n  () =&gt; {\n    return { default: \"value set in test\" };\n  },\n  { virtual: true },\n);<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u5bfb\u627e\u66f4\u591a\u793a\u4f8b\uff1f<\/h2>\n\n\n\n<p>\u8bf7\u53c2\u9605\u00a0lwc-recipes \u5b58\u50a8\u5e93\u7684 lwc \u76ee\u5f55\u3002\u8bb8\u591a\u98df\u8c31\u90fd\u6709\u4e00\u4e2a\u76ee\u5f55\uff0c\u5176\u4e2d\u5305\u542b\u6ce8\u91ca\u7684 jest tests\u3002<code>__tests__<\/code><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"improve-performance\">\u63d0\u9ad8\u6027\u80fd<\/h2>\n\n\n\n<p>\u542f\u7528 CDN \u548c\u5b89\u5168\u6d4f\u89c8\u5668\u7f13\u5b58\u4ee5\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u6027\u80fd\u3002<\/p>\n\n\n\n<p>\u6ce8\u610f<\/p>\n\n\n\n<p>\u6bcf\u5929\u7b2c\u4e00\u6b21\u52a0\u8f7d\u7ec4\u4ef6\u65f6\uff0c\u52a0\u8f7d\u901f\u5ea6\u4f1a\u53d8\u6162\uff0c\u56e0\u4e3a\u8be5\u7ec4\u4ef6\u672a\u7f13\u5b58\u3002\u5728\u540e\u7eed\u52a0\u8f7d\u65f6\uff0c\u7ec4\u4ef6\u7684\u52a0\u8f7d\u548c\u663e\u793a\u901f\u5ea6\u66f4\u5feb\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"enable-secure-browser-caching\">\u542f\u7528\u5b89\u5168\u6d4f\u89c8\u5668\u7f13\u5b58<\/h2>\n\n\n\n<p>\u5728\u6d4f\u89c8\u5668\u4e2d\u542f\u7528\u5b89\u5168\u6570\u636e\u7f13\u5b58\uff0c\u901a\u8fc7\u907f\u514d\u4e0e\u670d\u52a1\u5668\u7684\u989d\u5916\u5f80\u8fd4\u6765\u63d0\u9ad8\u9875\u9762\u91cd\u65b0\u52a0\u8f7d\u6027\u80fd\u3002<\/p>\n\n\n\n<p>\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u6b64\u8bbe\u7f6e\u5904\u4e8e\u9009\u4e2d\u72b6\u6001\u3002<\/p>\n\n\n\n<p>\u6ce8\u610f<\/p>\n\n\n\n<p>\u7981\u7528\u5b89\u5168\u548c\u6301\u4e45\u7684\u6d4f\u89c8\u5668\u7f13\u5b58\u4f1a\u5bf9 Lightning Experience \u7684\u6027\u80fd\u4ea7\u751f\u91cd\u5927\u8d1f\u9762\u5f71\u54cd\u3002\u4ec5\u5728\u8fd9\u4e9b\u60c5\u51b5\u4e0b\u7981\u7528\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u516c\u53f8\u7684\u7b56\u7565\u4e0d\u5141\u8bb8\u6d4f\u89c8\u5668\u7f13\u5b58\uff0c\u5373\u4f7f\u6570\u636e\u5df2\u52a0\u5bc6\u4e5f\u662f\u5982\u6b64\u3002<\/li>\n\n\n\n<li>\u5728\u6c99\u76d2\u6216 Developer Edition \u4e2d\u8fdb\u884c\u5f00\u53d1\u65f6\uff0c\u60a8\u5e0c\u671b\u5728\u4e0d\u6e05\u7a7a\u5b89\u5168\u7f13\u5b58\u7684\u60c5\u51b5\u4e0b\u67e5\u770b\u4efb\u4f55\u4ee3\u7801\u66f4\u6539\u7684\u6548\u679c\u3002<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5728\u201c\u8bbe\u7f6e\u201d\u4e2d\uff0c\u8f93\u5165\u201c\u5feb\u901f\u67e5\u627e\u201d\u6846\uff0c\u7136\u540e\u9009\u62e9<strong>\u201c\u4f1a\u8bdd\u8bbe\u7f6e<\/strong>\u201d\u3002<code>Session<\/code><\/li>\n\n\n\n<li>\u9009\u4e2d\u201c\u542f\u7528\u5b89\u5168\u4e14\u6301\u4e45\u7684\u6d4f\u89c8\u5668\u7f13\u5b58\u4ee5\u63d0\u9ad8\u6027\u80fd\u201d\u590d\u9009\u6846\u3002<\/li>\n\n\n\n<li>\u70b9\u51fb<strong>\u4fdd\u5b58<\/strong>\u3002<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"enable-cdn-to-load-applications-faster\">\u4f7f CDN \u80fd\u591f\u66f4\u5feb\u5730\u52a0\u8f7d\u5e94\u7528\u7a0b\u5e8f<\/h2>\n\n\n\n<p>\u901a\u8fc7\u542f\u7528 Akamai \u7684\u5185\u5bb9\u5206\u53d1\u7f51\u7edc \uff08CDN\uff09 \u4e3a Lightning \u7ec4\u4ef6\u6846\u67b6\u63d0\u4f9b\u9759\u6001\u5185\u5bb9\uff0c\u66f4\u5feb\u5730\u52a0\u8f7d Lightning Experience \u548c\u5176\u4ed6\u5e94\u7528\u7a0b\u5e8f\u3002CDN \u901a\u5e38\u4f1a\u52a0\u5feb\u9875\u9762\u52a0\u8f7d\u65f6\u95f4\uff0c\u4f46\u5b83\u4e5f\u4f1a\u66f4\u6539\u63d0\u4f9b\u6587\u4ef6\u7684\u6e90\u57df\u3002\u5982\u679c\u60a8\u7684\u516c\u53f8\u5bf9 Salesforce \u63d0\u4f9b\u7684\u5185\u5bb9\u6709 IP \u8303\u56f4\u9650\u5236\uff0c\u8bf7\u5728\u542f\u7528\u6b64\u8bbe\u7f6e\u4e4b\u524d\u8fdb\u884c\u5168\u9762\u6d4b\u8bd5\u3002<\/p>\n\n\n\n<p>CDN \u901a\u8fc7\u5c06\u7f13\u5b58\u7248\u672c\u5b58\u50a8\u5728\u591a\u4e2a\u5730\u7406\u4f4d\u7f6e\u6765\u7f29\u77ed\u9759\u6001\u5185\u5bb9\u7684\u52a0\u8f7d\u65f6\u95f4\u3002\u6b64\u8bbe\u7f6e\u4e3a Lightning \u7ec4\u4ef6\u6846\u67b6\u4e2d\u7684\u9759\u6001 JavaScript \u548c CSS \u542f\u7528 CDN \u4ea4\u4ed8\u3002\u5b83\u4e0d\u4f1a\u5728 CDN \u4e2d\u5206\u53d1\u60a8\u7684 Salesforce \u6570\u636e\u6216\u5143\u6570\u636e\u3002<\/p>\n\n\n\n<p>\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u5bf9\u4e8e\u5728 Winter &#8217;19 \u7248\u672c\u4e4b\u524d\u521b\u5efa\u7684\u7ec4\u7ec7\uff0c\u6b64\u8bbe\u7f6e\u5904\u4e8e\u7981\u7528\u72b6\u6001\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u5bf9\u4e8e\u65b0\u7ec4\u7ec7\u4ee5\u53ca\u6240\u6709\u65b0\u7684\u548c\u73b0\u6709\u7684 Experience Builder \u7ad9\u70b9\uff0c\u6b64\u8bbe\u7f6e\u5904\u4e8e\u7981\u7528\u72b6\u6001\u3002\u9002\u7528\u4e8e Experience Builder \u7ad9\u70b9\u7684 Lightning CDN \u65e0\u6cd5\u5173\u95ed\u4e14\u4e0d\u53ef\u914d\u7f6e\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5728\u201c\u8bbe\u7f6e\u201d\u4e2d\uff0c\u8f93\u5165\u201c\u5feb\u901f\u67e5\u627e\u201d\u6846\uff0c\u7136\u540e\u9009\u62e9<strong>\u201c\u4f1a\u8bdd\u8bbe\u7f6e<\/strong>\u201d\u3002<code>Session<\/code><\/li>\n\n\n\n<li>\u9009\u4e2d\u201c\u4e3a Lightning \u7ec4\u4ef6\u6846\u67b6\u542f\u7528\u5185\u5bb9\u5206\u53d1\u7f51\u7edc 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