{"id":2391,"date":"2020-06-25T15:25:24","date_gmt":"2020-06-25T07:25:24","guid":{"rendered":"http:\/\/www.ponybai.com\/?p=2391"},"modified":"2020-06-25T15:25:24","modified_gmt":"2020-06-25T07:25:24","slug":"lwc%e6%b5%8b%e8%af%95-%e8%ae%be%e7%bd%aejest%e6%b5%8b%e8%af%95%e6%a1%86%e6%9e%b6","status":"publish","type":"post","link":"http:\/\/www.ponybai.com\/?p=2391","title":{"rendered":"\u95ea\u7535Web\u7ec4\u4ef6\u6d4b\u8bd5 &#8211; \u8bbe\u7f6eJest\u6d4b\u8bd5\u6846\u67b6"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\" id=\"learning-objectives\">\u5b66\u4e60\u76ee\u6807<\/h2>\n\n\n\n<p>\u5b8c\u6210\u672c\u5355\u5143\u540e\uff0c\u60a8\u5c06\u80fd\u591f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u63cf\u8ff0Jest\u6d4b\u8bd5\u6846\u67b6\u3002<\/li>\n<li>\u63cf\u8ff0Node.js\u548cnpm\u7684\u89d2\u8272\u3002<\/li>\n<li>\u5b89\u88c5Node.js\u548cnpm\u3002<\/li>\n<li>\u5728Salesforce DX\u9879\u76ee\u4e2d\u5b89\u88c5@ salesforce \/ sfdx-lwc-jest JavaScript\u6a21\u5757\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"before-you-begin\">\u5728\u4f60\u5f00\u59cb\u4e4b\u524d<\/h2>\n\n\n\n<p>\u8981\u5b8c\u6210\u6b64\u6a21\u5757\uff0c\u60a8\u9700\u8981\u5b89\u88c5\u548c\u66f4\u65b0Salesforce CLI\uff0cVisual Studio Code\u548c\u7528\u4e8eVisual Studio Code\u7684Salesforce Extensions\u3002\u4e3a\u4e86\u6ee1\u8db3\u8fd9\u4e9b\u5148\u51b3\u6761\u4ef6\uff0c\u6211\u4eec\u5efa\u8bae\u60a8\u5728\u7ee7\u7eed\u4e4b\u524d\u5b8c\u6210\u00a0\u5feb\u901f\u5165\u95e8\uff1aSalesforce DX\uff0c\u00a0\u5feb\u901f\u5165\u95e8\uff1aVisual Studio Code for Salesforce\u5f00\u53d1\u548c\u00a0\u5feb\u901f\u5165\u95e8\uff1aLightning Web Components\u00a0\u9879\u76ee\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"create-a-salesforce-dx-project\">\u521b\u5efa\u4e00\u4e2aSalesforce DX\u9879\u76ee<\/h2>\n\n\n\n<p>\u6d4b\u8bd5\u4e4b\u524d\u7684\u7b2c\u4e00\u6b65\u662f\u521b\u5efa\u4e00\u4e2aSalesforce DX\u9879\u76ee\uff0c\u4ee5\u5b58\u50a8\u60a8\u7684Lightning Web\u7ec4\u4ef6\u548cJest\u6d4b\u8bd5\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5728Visual Studio Code\u4e2d\uff0c\u901a\u8fc7\u6309<strong>Ctrl + Shift + P<\/strong>\u00a0\uff08Windows\uff09\u6216<strong>Cmd + Shift + P<\/strong>\u00a0\uff08macOS\uff09\u6253\u5f00\u547d\u4ee4\u9762\u677f\u3002<\/li>\n<li>\u8f93\u5165<code>sfdx<\/code>\u3002<\/li>\n<li>\u9009\u62e9<strong>SFDX\uff1a\u521b\u5efa\u9879\u76ee<\/strong>\u3002\u5982\u679c\u770b\u4e0d\u5230\u6b64\u9009\u9879\uff0c\u8bf7\u5728\u7ee7\u7eed\u4e4b\u524d\u5b8c\u6210\u672c\u6a21\u5757\u7b2c\u4e00\u4e2a\u5355\u5143\u4e2d\u7684\u524d\u63d0\u6761\u4ef6\u3002<\/li>\n<li>\u9009\u62e9<strong>\u6807\u51c6<\/strong>\u3002<\/li>\n<li>\u8f93\u5165<code>test-lwc<\/code>\u4f5c\u4e3a\u9879\u76ee\u540d\u79f0\u3002<\/li>\n<li>\u6309<strong>Enter\u952e<\/strong>\u3002<\/li>\n<li>\u9009\u62e9\u4e00\u4e2a\u6587\u4ef6\u5939\u6765\u5b58\u50a8\u9879\u76ee\u3002<\/li>\n<li>\u5355\u51fb<strong>\u521b\u5efa\u9879\u76ee\uff0c<\/strong>\u00a0\u7136\u540e\u7b49\u5f85\u65b0\u7684Visual Studio Code\u7a97\u53e3\u6253\u5f00\u3002<\/li>\n<li>\u5355\u51fb<strong>\u67e5\u770b<\/strong>\uff0c\u7136\u540e\u9009\u62e9<strong>\u7ec8\u7aef<\/strong>\u3002\u8fd9\u5c06\u5728Visual Studio Code\u4e2d\u6253\u5f00\u4e00\u4e2a\u7ec8\u7aef\u7a97\u53e3\u3002\u7ec8\u7aef\u9ed8\u8ba4\u4e3a\u9879\u76ee\u7684\u9876\u7ea7\u76ee\u5f55\u3002\u60a8\u7a0d\u540e\u9700\u8981\u7ec8\u7aef\u5728\u8be5\u9879\u76ee\u7684\u5de5\u4f5c\u76ee\u5f55\u4e2d\u8fd0\u884c\u547d\u4ee4\u3002<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"what-are-node-js-and-npm\">\u4ec0\u4e48\u662fNode.js\u548cnpm\uff1f<\/h2>\n\n\n\n<p>Node.js\u662f\u4e00\u4e2a\u57fa\u4e8eChrome\u7684V8 JavaScript\u5f15\u64ce\u7684JavaScript\u8fd0\u884c\u65f6\uff0c\u800cnpm\u662f\u4e00\u4e2a\u7528\u4e8e\u5206\u53d1\u53ef\u91cd\u7528\u4ee3\u7801\u6a21\u5757\u7684\u7a0b\u5e8f\u5305\u7ba1\u7406\u5668\u3002\u5728Node.js\u548cnpm\u7684\u4e16\u754c\u4e2d\uff0c\u8fd9\u4e9b\u53ef\u91cd\u7528\u7684\u4ee3\u7801\u6a21\u5757\u79f0\u4e3aNode\u6a21\u5757\u3002\u5728Salesforce\u672f\u8bed\u4e2d\uff0cNode\u6a21\u5757\uff08\u53ef\u4ee5\u8f7b\u677e\u5730\u5206\u53d1\u5230\u591a\u4e2a\u9879\u76ee\u7684\u53ef\u91cd\u7528\u4ee3\u7801\uff09\u7c7b\u4f3c\u4e8e\u00a0\u89e3\u9501\u5305\u3002<\/p>\n\n\n\n<p>Node.js\u548cnpm\u662f\u73b0\u4ee3JavaScript\u5f00\u53d1\u4eba\u5458\u5de5\u5177\u7bb1\u4e2d\u6d41\u884c\u7684\u5de5\u5177\u3002\u5728\u201c\u00a0\u5b66\u4e60\u4f7f\u7528JavaScript\u201d\u00a0\u8def\u5f84\u4e2d\u4e86\u89e3\u6709\u5173\u73b0\u4ee3JavaScript\u7684\u66f4\u591a\u4fe1\u606f\u00a0\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"install-node-js-and-npm\">\u5b89\u88c5Node.js\u548cnpm<\/h2>\n\n\n\n<p>Jest\u662f\u4e00\u4e2aNode\u6a21\u5757\uff0c\u56e0\u6b64\u8981\u4f7f\u7528\u5b83\uff0c\u60a8\u9700\u8981\u5b89\u88c5Node\u548cnpm\u3002\u73b0\u5728\u5f00\u59cb\u5427\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u4ece\u5b89\u88c5Node.js\u7684\u00a0https:\/\/nodejs.org\/en\/download\/\u3002\u6211\u4eec\u5efa\u8bae\u4f7f\u7528LTS\uff08\u957f\u671f\u652f\u6301\uff09\u7248\u672c\u3002<\/li>\n<li>\u786e\u8ba4\u5df2\u5b89\u88c5Node.js\u3002\u5728\u6211\u4eec\u5148\u524d\u6253\u5f00\u7684Visual Studio Code\u7ec8\u7aef\u4e2d\uff0c\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\u3002<code>node --version<\/code>\u590d\u5236<\/li>\n<li>\u60a8\u5e94\u8be5\u4f1a\u770b\u5230\u7c7b\u4f3c\u7684\u8f93\u51fa<code>v12.13.0<\/code>\u6216\u66f4\u9ad8\u7248\u672c\u3002<\/li>\n<li>\u5f53\u60a8\u5b89\u88c5Node.js\u65f6\uff0cnpm\u4e5f\u4f1a\u81ea\u52a8\u5b89\u88c5\u3002<br \/>\u5728\u7ec8\u7aef\u4e2d\uff0c\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\u3002<code>npm --version<\/code>\u590d\u5236\u60a8\u5e94\u8be5\u4f1a\u770b\u5230\u7c7b\u4f3c\u7684\u8f93\u51fa<code>6.13.0<\/code>\u6216\u66f4\u9ad8\u7248\u672c\u3002\u6ce8\u610f\u60a8\u53ef\u80fd\u9700\u8981\u66f4\u65b0npm\uff0c\u56e0\u6b64\u8bf7\u8bbf\u95ee\u00a0npmjs\u6587\u6863\u00a0\u4ee5\u83b7\u53d6\u6709\u5173\u9488\u5bf9\u4e0d\u540c\u64cd\u4f5c\u7cfb\u7edf\u5347\u7ea7npm\u7684\u66f4\u591a\u8be6\u7ec6\u4fe1\u606f\u3002<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"what-is-jest\">\u4ec0\u4e48\u662fJest\uff1f<\/h2>\n\n\n\n<p>Jest\u662f\u529f\u80fd\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u5177\u6709\u7f16\u5199JavaScript\u6d4b\u8bd5\u7684\u4e30\u5bcc\u529f\u80fd\u3002Jest\u53ef\u4ee5\u6536\u96c6\u4ee3\u7801\u8986\u76d6\u7387\u4fe1\u606f\uff0c\u5e76\u652f\u6301\u6a21\u62df\u4ee5\u5e2e\u52a9\u5c06\u6d4b\u8bd5\u4e0e\u590d\u6742\u7684\u4f9d\u8d56\u9879\u9694\u79bb\u3002\u73a9\u7b11\u6d4b\u8bd5\u4e0d\u4f1a\u5728\u6d4f\u89c8\u5668\u4e2d\u8fd0\u884c\u6216\u8fde\u63a5\u5230\u7ec4\u7ec7\uff0c\u56e0\u6b64\u8fd0\u884c\u901f\u5ea6\u5f88\u5feb\u3002\u4f7f\u7528Jest\u7f16\u5199\u6240\u6709Lightning Web\u7ec4\u4ef6\u7684\u5355\u5143\u6d4b\u8bd5\u3002\u8981\u5bf9Lightning Web\u7ec4\u4ef6\u8fd0\u884cJest\u6d4b\u8bd5\uff0c\u60a8\u9700\u8981\u5728Salesforce DX\u9879\u76ee\u4e2d\u4f7f\u7528@ salesforce \/ sfdx-lwc-jest\u8282\u70b9\u6a21\u5757\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/res.cloudinary.com\/hy4kyit2a\/image\/upload\/doc\/trailhead\/en-usb473bb5ea1b7e61dfb07e6a7e547de6b.gif\" alt=\"\u6ce8\u610f\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">\u6ce8\u610f<\/h4>\n\n\n\n<p>Jest\u6d4b\u8bd5\u4ec5\u9002\u7528\u4e8eSalesforce DX\u9879\u76ee\u4e2d\u7684Lightning Web\u7ec4\u4ef6\uff0c\u4e0d\u9002\u7528\u4e8eAura\u7ec4\u4ef6\u3002\u5bf9\u4e8eAura\u7ec4\u4ef6\uff0c\u8bf7\u53c2\u9605 \u4f7f\u7528Lightning Testing Service\u6d4b\u8bd5\u7ec4\u4ef6\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"install-sfdx-lwc-jest-node-module\">\u5b89\u88c5sfdx-lwc-jest\u8282\u70b9\u6a21\u5757<\/h2>\n\n\n\n<p>\u8be5<code>@salesforce\/sfdx-lwc-jest<\/code>\u8282\u70b9\u6a21\u5757\uff0c\u60a8\u53ef\u4ee5\u7f16\u5199\uff0c\u8fd0\u884c\u548c\u8c03\u8bd5\u73a9\u7b11\u8bd5\u9a8c\u95ea\u7535Web\u7ec4\u4ef6\u3002\u901a\u8fc7Salesforce CLI\uff0c\u53ef\u4ee5\u8f7b\u677e\u5730\u5c06Jest\u53ca\u5176\u4f9d\u8d56\u9879\u5b89\u88c5\u5230\u9879\u76ee\u4e2d\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5728Visual Studio Code\u7ec8\u7aef\u4e2d\uff0c\u5728Salesforce DX\u9879\u76ee\u7684\u9876\u7ea7\u76ee\u5f55\u4e2d\u8fd0\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a<code>sfdx force:lightning:lwc:test:setup<\/code>\u590d\u5236\u8fd9\u5c06\u5b89\u88c5npm\u5e76<code>@salesforce\/sfdx-lwc-jest<\/code>\u8fdb\u5165\u9879\u76ee\u3002\u7ed3\u679c\u5e94\u5982\u4e0b\u6240\u793a\uff1a<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/res.cloudinary.com\/hy4kyit2a\/f_auto,fl_lossy,q_70\/learn\/modules\/test-lightning-web-components\/set-up-jest-testing-framework\/images\/31506db7bd598ae5e0fb6859022d781f_6-af-71-bb-3-8-fab-4564-a-492-293-f-8-a-3-c-1-e-7-f.png\" alt=\"Setup messages in terminal.\" \/><\/figure>\n\n\n\n<p>\u60a8\u53ef\u80fd\u4f1a\u6ce8\u610f\u5230\u8be5\u8fc7\u7a0b\u53d1\u73b0\u4e86\u4e00\u4e9b\u6f0f\u6d1e\u3002\u5c31\u6211\u4eec\u7684\u76ee\u7684\u800c\u8a00\uff0c\u8fd9\u5f88\u597d\u3002\u8fd9\u4e9b\u4e0d\u662f\u60a8\u8981\u67e5\u627e\u7684\u6f0f\u6d1e\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/res.cloudinary.com\/hy4kyit2a\/image\/upload\/doc\/trailhead\/en-usb473bb5ea1b7e61dfb07e6a7e547de6b.gif\" alt=\"\u6ce8\u610f\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">\u6ce8\u610f<\/h4>\n\n\n\n<p>\u5bf9\u4e8e\u5176\u4ed6\u5b89\u88c5Jest Node\u6a21\u5757\u7684\u65b9\u5f0f\uff0cSalesforce\u00a0<code>@salesforce\/sfdx-lwc-jest<\/code>\u5728https:\/\/www.npmjs.com\/package\/@salesforce\/sfdc-lwc-jest\u4e0a\u7684npm\u4e0a\u4ee5JavaScript\u8f6f\u4ef6\u5305\u7684\u5f62\u5f0f\u63d0\u4f9bNode\u6a21\u5757\uff0c\u00a0\u5e76\u4ee5\u5f00\u6e90\u9879\u76ee\u7684\u5f62\u5f0f\u63d0\u4f9b\u8be5\u6a21\u5757\u00a0\u5728GitHub\u4e0a\u00a0https:\/\/github.com\/salesforce\/sfdx-lwc-jest\u4e0a\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"run-jest-tests\">\u8fd0\u884cJest\u6d4b\u8bd5<\/h2>\n\n\n\n<p>\u592a\u597d\u4e86\uff0c\u60a8\u8bbe\u7f6e\u4e86Salesforce DX\u9879\u76ee\u4ee5\u80fd\u591f\u8fd0\u884c\u7a0d\u540e\u5728\u6b64\u6a21\u5757\u4e2d\u7f16\u5199\u7684Jest\u6d4b\u8bd5\u3002\u73b0\u5728\u5df2\u7ecf\u5b8c\u6210\u4e86\u6240\u6709\u5de5\u4f5c\uff0c\u6709\u51e0\u79cd\u65b9\u6cd5\u53ef\u4ee5\u8fd0\u884cJest\u6d4b\u8bd5\u3002\u60a8\u53ef\u4ee5\u76f4\u63a5\u8c03\u7528\u811a\u672c\uff0c\u4f7f\u7528npm\u547d\u4ee4\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528Visual Studio Code\u4e2d\u7684\u5355\u51fb\u3002\u60a8\u53ef\u4ee5\u5728\u6587\u4ef6\u6216\u9879\u76ee\u4e2d\u8fd0\u884c\u4e00\u4e2a\u6d4b\u8bd5\u6216\u6240\u6709\u6d4b\u8bd5\u3002\u5f53\u6d4b\u8bd5\u6db5\u76d6\u7684\u4ee3\u7801\u66f4\u6539\u65f6\uff0c\u60a8\u751a\u81f3\u53ef\u4ee5\u81ea\u52a8\u8fd0\u884c\u6d4b\u8bd5\u3002<\/p>\n\n\n\n<p>\u8ba9\u6211\u4eec\u770b\u4e00\u4e0b\u8fd0\u884cJest\u6d4b\u8bd5\u7684\u4e0d\u540c\u65b9\u6cd5\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"the-sfdx-lwc-jest-node-command\">sfdx-lwc-jest\u8282\u70b9\u547d\u4ee4<\/h2>\n\n\n\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bNode\u547d\u4ee4\u76f4\u63a5\u4ece\u9879\u76ee\u4e2d\u7684\u811a\u672c\u5b89\u88c5\u4f4d\u7f6e\u8fd0\u884c\u811a\u672c\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5728Visual Studio Code\u7ec8\u7aef\u4e2d\uff0c\u5728Salesforce DX\u9879\u76ee\u7684\u9876\u7ea7\u76ee\u5f55\u4e2d\uff0c\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\u3002<code>node node_modules\/@salesforce\/sfdx-lwc-jest\/bin\/sfdx-lwc-jest<\/code>\u76ee\u524d\u8fd8\u6ca1\u6709Jest\u6d4b\u8bd5\uff0c\u56e0\u6b64\u60a8\u5e94\u8be5\u770b\u5230\u7c7b\u4f3c\u7684\u8f93\u51fa<code>No tests found, exiting with code 1<\/code>\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u8fd9\u662f\u4e00\u4e2a\u5f88\u597d\u7684\u5f00\u59cb\uff0c\u4f46\u662f\u8ba9\u6211\u4eec\u770b\u4e00\u4e0b\u5982\u4f55\u901a\u8fc7\u81ea\u52a8\u5316\u4f7f\u5b83\u53d8\u5f97\u66f4\u597d\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"automate-test-scripts-with-package-json-and-npm\">\u4f7f\u7528Package.json\u548cnpm\u81ea\u52a8\u6267\u884c\u6d4b\u8bd5\u811a\u672c<\/h2>\n\n\n\n<p>\u8fdb\u884c\u5355\u5143\u6d4b\u8bd5\u7684\u76ee\u7684\u662f\u4fc3\u8fdb\u5f00\u53d1\u4eba\u5458\u5728\u5176\u5f00\u53d1\u548c\u6301\u7eed\u96c6\u6210\u8fc7\u7a0b\u4e2d\u7f16\u5199\u548c\u8fd0\u884c\u5b83\u4eec\uff0c\u4ee5\u4fbf\u5c3d\u65e9\u53d1\u73b0\u5e76\u4fee\u590d\u9519\u8bef\u3002\u4e00\u904d\u53c8\u4e00\u904d\u5730\u8bb0\u4f4f\u548c\u952e\u5165\u957f\u547d\u4ee4\u5bf9\u60a8\u7684\u76ee\u6807\u9002\u5f97\u5176\u53cd\u3002\u81ea\u52a8\u5316\u5c31\u5728\u8fd9\u91cc\u3002<\/p>\n\n\n\n<p>npm\u5177\u6709\u4e00\u4e9b\u975e\u5e38\u597d\u7684\u73b0\u6210\u7684\u811a\u672c\u81ea\u52a8\u5316\u7075\u6d3b\u6027\u3002\u65e9\u671f\u8fd0\u884c\u5b89\u88c5\u4f1a<code>scripts<\/code>\u5728\u9879\u76ee\u6839\u76ee\u5f55\u7684package.json\u6587\u4ef6\u7684\u5c5e\u6027\u4e2d\u6dfb\u52a0\u4e86\u4e00\u7cfb\u5217\u9009\u9879\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>{\n  \"name\": \"test-lwc\",\n  ...  \"scripts\": {\n    ...\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  ...}<\/code><\/pre>\n\n\n\n<p>\u5982\u679c\u8981\u4e3a\u9879\u76ee\u8fd0\u884c\u6240\u6709\u6d4b\u8bd5\uff0c\u8bf7\u4ece\u9879\u76ee\u7684\u57fa\u672c\u76ee\u5f55\u8fd0\u884c\u6b64npm\u547d\u4ee4\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>npm run test:unit<\/code><\/pre>\n\n\n\n<p>\u5982\u679c\u8981\u5728\u7279\u5b9a\u76ee\u5f55\u4e2d\u8fd0\u884c\u6d4b\u8bd5\uff0c\u5219\u5728\u7279\u5b9a\u76ee\u5f55\u4e2d\u4f7f\u7528\u4e0a\u9762\u7684\u547d\u4ee4\u5c06\u4ec5\u5728\u8be5\u76ee\u5f55\u4e2d\u8fd0\u884c\u6d4b\u8bd5\u3002\u8fd9\u4f7f\u60a8\u53ef\u4ee5\u9694\u79bb\u6b63\u5728\u6d4b\u8bd5\u7684\u5185\u5bb9\u3002<\/p>\n\n\n\n<p><strong>\u5728\u5f00\u53d1\u8fc7\u7a0b\u4e2d\u8fde\u7eed\u8fd0\u884c\u6d4b\u8bd5<\/strong><\/p>\n\n\n\n<p>\u8981\u5728\u6bcf\u6b21\u4fdd\u5b58\u66f4\u6539\u65f6\u5bf9\u5355\u4e2a\u7ec4\u4ef6\u8fd0\u884c\u6240\u6709\u6d4b\u8bd5\uff0c\u8bf7\u5c06\u76ee\u5f55\u66f4\u6539\u4e3a\u7ec4\u4ef6\u76ee\u5f55\uff0c\u7136\u540e\u8fd0\u884c\u4e0b\u9762\u7684npm\u547d\u4ee4\uff0c\u8be5\u547d\u4ee4\u5c06sfdx-lwc-jest\u4e0e\u8be5<code>--watch<\/code>\u53c2\u6570\u4e00\u8d77\u4f7f\u7528\u3002\u5982\u4e0a\u6240\u8ff0\uff0c\u60a8\u8fd8\u53ef\u4ee5\u4ece\u9879\u76ee\u7684\u57fa\u7840\u4e0a\u8fd0\u884c\u6b64\u4ee3\u7801\uff0c\u5e76\u9488\u5bf9\u6bcf\u4e2a\u66f4\u6539\u8fd0\u884c\u9879\u76ee\u4e2d\u7684\u6240\u6709\u6d4b\u8bd5\u3002Git\u9700\u8981\u521d\u59cb\u5316<code>--watch<\/code>\u624d\u80fd\u4ece\u547d\u4ee4\u884c\u5de5\u4f5c\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>npm run test:unit:watch<\/code><\/pre>\n\n\n\n<p>\u521d\u59cb\u5316Git\u540e\uff0cJest\u73b0\u5728\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<p><strong>\u5728Jest\u8c03\u8bd5\u6a21\u5f0f\u4e0b\u8fd0\u884c\u6d4b\u8bd5<\/strong><\/p>\n\n\n\n<p>\u8981\u4ee5\u8c03\u8bd5\u6a21\u5f0f\u8fd0\u884c\u9879\u76ee\u7684Jest\u6d4b\u8bd5\uff0c\u8bf7\u8fd0\u884c\u4e0b\u9762\u7684npm\u547d\u4ee4\uff0c\u8be5\u547d\u4ee4\u5c06sfdx-lwc-jest\u4e0e<code>--debug<\/code>\u53c2\u6570\u4e00\u8d77\u4f7f\u7528\u3002\u00a0<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>npm run test:unit:debug<\/code><\/pre>\n\n\n\n<p>\u6709\u5173\u5bf9Jest\u95ee\u9898\u8fdb\u884c\u6545\u969c\u6392\u9664\u7684\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605\u300a\u00a0Jest\uff1a\u6545\u969c\u6392\u9664\u300b\u3002<\/p>\n\n\n\n<p><strong>\u8fd0\u884c\u6d4b\u8bd5\u5e76\u663e\u793a\u4ee3\u7801\u8986\u76d6\u7387<\/strong><\/p>\n\n\n\n<p>\u8981\u67e5\u770b\u6d4b\u8bd5\u7684\u4ee3\u7801\u8986\u76d6\u7387\uff0c\u8bf7\u4f7f\u7528\u4ee5\u4e0b<code>--coverage<\/code>\u9009\u9879\u3002\u00a0<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>npm run test:unit:coverage<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"run-tests-with-clicks-in-visual-studio-code\">\u5728Visual Studio Code\u4e2d\u901a\u8fc7\u5355\u51fb\u8fd0\u884c\u6d4b\u8bd5<\/h2>\n\n\n\n<p>Salesforce Visual Studio Code\u6269\u5c55\u4e3a\u8fd0\u884cJest\u6d4b\u8bd5\u63d0\u4f9b\u4e86\u5f88\u591a\u63a7\u5236\u548c\u89c6\u89c9\u53cd\u9988\u3002\u5b83\u4e3a\u60a8\u63d0\u4f9b\u4e86\u8fd0\u884c\u5355\u4e2a\uff0c\u591a\u4e2a\u6216\u6240\u6709\u6d4b\u8bd5\u7684\u9009\u9879\u3002<code>--watch<\/code>\u7531\u4e8eGit\u5df2\u9884\u5b89\u88c5\u5728Visual Studio Code\u4e2d\uff0c\u56e0\u6b64\u5b83\u8fd8\u4f7f\u60a8\u80fd\u591f\u5728\u6587\u4ef6\u4e0a\u4f7f\u7528\u8be5\u9009\u9879\u3002\u00a0<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/res.cloudinary.com\/hy4kyit2a\/f_auto,fl_lossy,q_70\/learn\/modules\/test-lightning-web-components\/set-up-jest-testing-framework\/images\/d675cd22f3acb57a8594132d5d7ea328_758-cf-5-ec-57-f-9-4129-94-fc-ef-12-c-77-f-3-a-29.png\" alt=\"\u6d4b\u8bd5\u70e7\u676f\u6309\u94ae\u56fe\u6807\u3002\" \/>\n<figcaption>\u6d4b\u8bd5\u56fe\u6807<\/figcaption>\n<\/figure>\n\n\n\n<p>\u5355\u51fb\u6d4b\u8bd5\u70e7\u676f\u56fe\u6807\u00a0\u4ee5\u6253\u5f00\u201c\u6d4b\u8bd5\u201d\u4fa7\u680f\u3002\u5982\u679c\u770b\u4e0d\u5230\u8be5\u56fe\u6807\uff0c\u5219\u53ef\u80fd\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u65b0\u7684SFDX\u9879\u76ee\u3002\u5728\u201c\u6d4b\u8bd5\u201d\u4fa7\u680f\u4e2d\uff0c\u6709\u4e00\u4e2aLWC\u6d4b\u8bd5\u90e8\u5206\uff0c\u663e\u793a\u9879\u76ee\u4e2d\u7684\u6240\u6709Jest\u6d4b\u8bd5\u3002\u8fd9\u662f\u9879\u76ee\u4e2d\u7684\u6d4b\u8bd5\u4fa7\u8fb9\u680f\u7684\u5916\u89c2\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/res.cloudinary.com\/hy4kyit2a\/f_auto,fl_lossy,q_70\/learn\/modules\/test-lightning-web-components\/set-up-jest-testing-framework\/images\/15541dfb613027969fa6da7a3f836e4e_0-ddc-006-d-fea-8-47-cd-8-ff-0-deab-1-ff-8977-d.png\" alt=\"\u5728test-lwc\u9879\u76ee\u7684\u201c\u6d4b\u8bd5\u201d\u4fa7\u680f\u4e2d\u7684LWC\u6d4b\u8bd5\u3002\" \/><\/figure>\n\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/res.cloudinary.com\/hy4kyit2a\/f_auto,fl_lossy,q_70\/learn\/modules\/test-lightning-web-components\/set-up-jest-testing-framework\/images\/ef1592fcde564d720d123f5bf6880259_83-af-8-e-7-e-3-b-05-498-d-ac-70-f-101-a-75-f-62-fd.png\" alt=\"\u6d4b\u8bd5\u64ad\u653e\u6309\u94ae\u56fe\u6807\u3002\" \/>\n<figcaption>Play\u6309\u94ae<\/figcaption>\n<\/figure>\n<\/div>\n\n\n\n<p>\u5355\u51fbPlay\u6309\u94ae \u4ee5\u5728\u4e00\u4e2a\u9879\u76ee\u4e2d\u8fd0\u884c\u4e00\u4e2a\u6216\u591a\u4e2a\u6d4b\u8bd5\u3002\u5c06\u5149\u6807\u60ac\u505c\u5728\u76ee\u5f55\u6216\u5355\u4e2a\u6d4b\u8bd5\u4e0a\u4ee5\u663e\u793a\u64ad\u653e\u6309\u94ae\u3002\u8fd0\u884c\u6d4b\u8bd5\u65f6\uff0c\u7ed3\u679c\u5c06\u663e\u793a\u5728\u7ec8\u7aef\u4e2d\u3002\u8fb9\u680f\u4e2d\u7684\u989c\u8272\u4e5f\u6307\u793a\u7ed3\u679c\u3002\u7eff\u8272\u8868\u793a\u901a\u8fc7\u3002\u84dd\u8272\u8868\u793a\u672a\u8fd0\u884c\uff0c\u6a59\u8272\u8868\u793a\u5df2\u8df3\u8fc7\u6d4b\u8bd5\uff0c\u7ea2\u8272\u8868\u793a\u6d4b\u8bd5\u5931\u8d25\u3002\u5355\u51fb\u4fa7\u8fb9\u680f\u4e2d\u7684\u6d4b\u8bd5\u5c06\u6253\u5f00\u6587\u4ef6\uff0c\u7136\u540e\u76f4\u63a5\u8f6c\u5230\u8be5\u6d4b\u8bd5\u3002<\/p>\n\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/res.cloudinary.com\/hy4kyit2a\/f_auto,fl_lossy,q_70\/learn\/modules\/test-lightning-web-components\/set-up-jest-testing-framework\/images\/9f3d9ca136e9d7ee5364de86b92a63ae_e-6664578-5-d-0-b-4-c-57-a-3-c-4-c-8-b-1-d-3-bca-588.png\" alt=\"\u6d4b\u8bd5\u5237\u65b0\u6309\u94ae\u56fe\u6807\u3002\" \/>\n<figcaption>\u5237\u65b0\u56fe\u6807<\/figcaption>\n<\/figure>\n<\/div>\n\n\n\n<p>\u5355\u51fb\u5237\u65b0\u56fe\u6807\u00a0\u4ee5\u6e05\u9664\u6d4b\u8bd5\u7ed3\u679c\u3002<\/p>\n\n\n\n<p>\u6d4b\u8bd5\u6587\u4ef6\u89c6\u56fe\u4e2d\u4e5f\u6709\u76f4\u63a5\u63a7\u4ef6\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/res.cloudinary.com\/hy4kyit2a\/f_auto,fl_lossy,q_70\/learn\/modules\/test-lightning-web-components\/set-up-jest-testing-framework\/images\/1050129de66048752ebf63e465f624c7_6-f-7-ad-2-d-7-d-4-ea-4396-800-e-da-5-a-0-ee-2-ad-76.png\" alt=\"\u5728Visual Studio Code\u4e2d\u6d4b\u8bd5\u6587\u4ef6\u89c6\u56fe\u3002\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/res.cloudinary.com\/hy4kyit2a\/f_auto,fl_lossy,q_70\/learn\/modules\/test-lightning-web-components\/set-up-jest-testing-framework\/images\/ef1592fcde564d720d123f5bf6880259_9-cb-2540-e-72-cf-4-a-37-85-e-8-0-f-0-a-034747-ac.png\" alt=\"\u6d4b\u8bd5\u64ad\u653e\u6309\u94ae\u56fe\u6807\u3002\" \/>\n<figcaption>Play\u6309\u94ae<\/figcaption>\n<\/figure>\n\n\n\n<p>\u5355\u51fb\u4e3b\u5de5\u5177\u680f\u4e2d\u7684\u64ad\u653e\u6309\u94ae\u00a0\u4ee5\u8fd0\u884c\u6587\u4ef6\u4e2d\u7684\u6240\u6709\u6d4b\u8bd5\u3002\u60a8\u4e5f\u53ef\u4ee5\u5355\u51fb\u00a0\u6587\u4ef6\u4e2d\u6bcf\u4e2a<strong>\u6d4b\u8bd5<\/strong>\u4e0a\u65b9\u7684<strong>\u8fd0\u884c\u6d4b\u8bd5<\/strong>\u4ee5\u8fd0\u884c\u8be5\u7279\u5b9a\u6d4b\u8bd5\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/res.cloudinary.com\/hy4kyit2a\/f_auto,fl_lossy,q_70\/learn\/modules\/test-lightning-web-components\/set-up-jest-testing-framework\/images\/cac7ff5ad588aacc1a503ad14f0c664c_a-9-f-734-d-2-d-4-d-2-4664-9217-754138-fc-847-b.png\" alt=\"\u6d4b\u8bd5\u624b\u8868\u6309\u94ae\u56fe\u6807\u3002\" \/>\n<figcaption>\u76d1\u89c6\u56fe\u6807<\/figcaption>\n<\/figure>\n\n\n\n<p>\u8981\u5728\u6bcf\u6b21\u4fdd\u5b58\u66f4\u6539\u65f6\u8fd0\u884c\u6587\u4ef6\u4e2d\u7684\u6240\u6709\u6d4b\u8bd5\uff0c\u8bf7\u5355\u51fb\u4e3b\u5de5\u5177\u680f\u4e2d\u7684\u76d1\u89c6\u56fe\u6807\u00a0\u3002\u5f53\u60a8\u5728\u6587\u4ef6\u4e2d\u8fdb\u884c\u6d4b\u8bd5\u65f6\uff0c\u8fd9\u662f\u4e00\u4e2a\u5f88\u597d\u7684\u9009\u62e9\u3002<\/p>\n\n\n\n<p>\u54c7\uff01\u8fd9\u9700\u8981\u5f88\u591a\u3002\u00a0<\/p>\n\n\n\n<p>\u597d\u5427\uff0c\u8ba9\u6211\u4eec\u7f16\u5199\u4e00\u4e9b\u6d4b\u8bd5\u3002<\/p>\n\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>\u5b66\u4e60\u76ee\u6807 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