{"id":2399,"date":"2020-06-25T15:35:50","date_gmt":"2020-06-25T07:35:50","guid":{"rendered":"http:\/\/www.ponybai.com\/?p=2399"},"modified":"2020-06-25T15:35:50","modified_gmt":"2020-06-25T07:35:50","slug":"lwc%e6%b5%8b%e8%af%95-%e6%a8%a1%e6%8b%9f%e5%85%b6%e4%bb%96%e7%bb%84%e4%bb%b6","status":"publish","type":"post","link":"http:\/\/www.ponybai.com\/?p=2399","title":{"rendered":"\u95ea\u7535Web\u7ec4\u4ef6\u6d4b\u8bd5 &#8211; \u6a21\u62df\u5176\u4ed6\u7ec4\u4ef6"},"content":{"rendered":"<h2 id=\"learning-objectives\"><span>\u5b66\u4e60\u76ee\u6807<\/span><\/h2>\n<p><span>\u5b8c\u6210\u672c\u5355\u5143\u540e\uff0c\u60a8\u5c06\u80fd\u591f\uff1a<\/span><\/p>\n<ul>\n<li><span>\u63cf\u8ff0sfdx-lwc-jest\u8f6f\u4ef6\u5305\u63d0\u4f9b\u7684\u5b58\u6839\u3002<\/span><\/li>\n<li><span>\u4e86\u89e3\u5982\u4f55\u8986\u76d6Jest\u914d\u7f6e\u3002<\/span><\/li>\n<li><span>\u5728\u5f00\u53d1\u73af\u5883\u4e4b\u5916\u6d4b\u8bd5\u7ec4\u4ef6\u3002<\/span><\/li>\n<li><span>\u4e3a\u5916\u90e8\u7ec4\u4ef6\u521b\u5efa\u5b58\u6839\u3002<\/span><\/li>\n<\/ul>\n<h2 id=\"mocking-base-components\"><span>\u6a21\u62df\u57fa\u7840\u7ec4\u4ef6<\/span><\/h2>\n<p><span>sfdx-lwc-jest\u8f6f\u4ef6\u5305\u4f7f\u6211\u4eec\u53ef\u4ee5\u5728Lightning Web Components\u4e0a\u8fd0\u884cJest\u3002\u5b83\u8bbe\u7f6e\u4e86\u6240\u6709\u5fc5\u8981\u7684Jest\u914d\u7f6e\uff0c\u4ee5\u8fd0\u884c\u6d4b\u8bd5\uff0c\u800c\u65e0\u9700\u8fdb\u884c\u4efb\u4f55\u5176\u4ed6\u66f4\u6539\u3002\u6211\u4eec\u5df2\u7ecf\u5728\u5148\u524d\u7684\u6a21\u5757\u4e2d\u5e7f\u6cdb\u4f7f\u7528\u4e86\u5b83\u3002\u8be5\u8f6f\u4ef6\u5305\u5305\u62ecLightning\u540d\u79f0\u7a7a\u95f4\u4e2d\u6240\u6709\u7ec4\u4ef6\u7684\u4e00\u7ec4\u5b58\u6839\uff08\u6a21\u62df\u6b63\u5728\u6d4b\u8bd5\u7684\u6a21\u5757\u6240\u4f9d\u8d56\u7684\u7ec4\u4ef6\u7684\u7a0b\u5e8f\uff09\u3002\u8fd9\u5305\u62ec\u6240\u6709\u95ea\u7535\u57fa\u7840\u7ec4\u4ef6\u3002\u5b58\u6839\u5b89\u88c5\u5728<\/span><code>src\/lightning-stubs<\/code><span>\u76ee\u5f55\u4e2d\u7684<\/span><code>node-modules\/@salesforce\/sfdx-lwc-jest<\/code><span>\u00a0\u76ee\u5f55\u4e2d\u3002<\/span><\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"image image-block\" src=\"https:\/\/res.cloudinary.com\/hy4kyit2a\/f_auto,fl_lossy,q_70\/learn\/modules\/test-lightning-web-components\/mock-other-components\/images\/afe8fcf036f935f11659c53b17b6558c_5-c-175742-3-b-94-4-d-9-c-aa-3-b-d-9-ed-38883-c-2-e.png\" alt=\"test-lwc\u9879\u76ee\u4e2d\u7684lightning-stubs\u76ee\u5f55\u3002\" width=\"351\" height=\"607\" \/><\/p>\n<p><span>\u6709\u65f6\u53ef\u80fd\u9700\u8981\u8986\u76d6\u63d0\u4f9b\u7684\u9ed8\u8ba4\u5b58\u6839\u3002\u8fd9\u662f\u901a\u8fc7\u8986\u76d6Jest\u914d\u7f6e\uff0c\u7136\u540e\u521b\u5efa\u81ea\u5b9a\u4e49\u5b58\u6839\u6765\u5b8c\u6210\u7684\u3002\u8ba9\u6211\u4eec\u901a\u8fc7\u95ea\u7535\u6309\u94ae\u6765\u5b8c\u6210\u6b64\u6b65\u9aa4\u3002<\/span><\/p>\n<p><span>\u9996\u5148\u5728Visual Studio Code\u4e2d\u4e3a\u81ea\u5b9a\u4e49\u5b58\u6839\u8bbe\u7f6e\u76ee\u5f55\u3002<\/span><\/p>\n<ol>\n<li><span>\u53f3\u952e\u5355\u51fb<\/span><code>force-app<\/code><span>\u76ee\u5f55\uff0c\u7136\u540e\u9009\u62e9\u201c<\/span><strong><span>\u65b0\u5efa\u6587\u4ef6\u5939\u201d<\/span><\/strong><span>\u3002<\/span><\/li>\n<li><span>\u8f93\u5165<\/span><code>test<\/code><span>\u65b0\u76ee\u5f55\u7684\u540d\u79f0\u3002<\/span><\/li>\n<li><span>\u53f3\u952e\u5355\u51fb\u65b0<\/span><code>test<\/code><span>\u76ee\u5f55\uff0c\u7136\u540e\u9009\u62e9\u201c<\/span><strong><span>\u65b0\u5efa\u6587\u4ef6\u5939\u201d<\/span><\/strong><span>\u3002<\/span><\/li>\n<li><span>\u8f93\u5165<\/span><code>jest-mocks<\/code><span>\u65b0\u76ee\u5f55\u7684\u540d\u79f0\u3002<\/span><\/li>\n<li><span>\u53f3\u952e\u5355\u51fb\u65b0<\/span><code>jest-mocks<\/code><span>\u76ee\u5f55\uff0c\u7136\u540e\u9009\u62e9\u201c<\/span><strong><span>\u65b0\u5efa\u6587\u4ef6\u5939\u201d<\/span><\/strong><span>\u3002<\/span><\/li>\n<li><span>\u8f93\u5165<\/span><code>lightning<\/code><span>\u65b0\u76ee\u5f55\u7684\u540d\u79f0\u3002<\/span><\/li>\n<\/ol>\n<p><span>\u8fd9\u662fLightning Base Component\u5b58\u6839\u7684\u6839\u3002<\/span><\/p>\n<p><span>\u63a5\u4e0b\u6765\uff0c\u901a\u8fc7\u66f4\u65b0\u5728<\/span><code>jest.config.js<\/code><span>Salesforce DX\u9879\u76ee\u7684\u6839\u76ee\u5f55\u4e0b\u547d\u540d\u7684\u6587\u4ef6\u5e76\u4ecesfdx-lwc-jest\u5bfc\u5165\u9ed8\u8ba4\u914d\u7f6e\u6765\u8986\u76d6Jest\u914d\u7f6e\u3002<\/span><\/p>\n<ol>\n<li><span>\u6253\u5f00<\/span><code>jest.config.js<\/code><span>\u6587\u4ef6\u3002<\/span><\/li>\n<li><span>\u5728\u201c\u5728\u6b64\u5904\u6dfb\u52a0\u4efb\u4f55\u81ea\u5b9a\u4e49\u914d\u7f6e\u201d\u6ce8\u91ca\u540e\uff0c\u5728\u65b0\u6587\u4ef6\u4e2d\u8f93\u5165\u4ee5\u4e0b\u4ee3\u7801\u5757\uff1a<\/span>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\">  moduleNameMapper<span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span>\n    <span class=\"token string\">'^lightning\/button$'<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">'&lt;rootDir&gt;\/force-app\/test\/jest-mocks\/lightning\/button'<\/span>\n  <span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\">\u00a0<\/div>\n<\/div>\n<\/div>\n<p><span>\u6ce8\u610fmoduleNameMapper\u3002\u8fd9\u662f\u5728\u544a\u8bc9Jest\u5728\u54ea\u91cc\u627e\u5230Stub\u00a0<\/span><code>lightning-button<\/code><span>\u3002\u7b2c\u4e00\u4e2a\u7834\u6298\u53f7\u8f6c\u6362\u4e3a\u6b63\u659c\u6760\uff0c\u5176\u4f59\u7684\u7ec4\u4ef6\u540d\u79f0\u5219\u4ece\u70e4\u8089\u4e32\u5230\u9a7c\u5cf0\u5927\u5c0f\u5199\u3002\u6b63\u659c\u6760\u7684\u539f\u56e0\u662f\u56e0\u4e3a\u6a21\u5757\u89e3\u6790\u5668\u5c06\u7b2c\u4e00\u4e2a\u7834\u6298\u53f7\u4e4b\u524d\u7684\u6240\u6709\u5185\u5bb9\u90fd\u89c6\u4e3a\u540d\u79f0\u7a7a\u95f4\u3002\u5728\u8fd9\u91cc\uff0c<\/span><code>&lt;rootDir&gt;<\/code><span>\u6620\u5c04\u5230Salesforce DX\u5de5\u4f5c\u533a\u7684\u6839\u3002<\/span><\/li>\n<li><span>\u4fdd\u5b58\u6587\u4ef6\u3002<\/span><\/li>\n<\/ol>\n<p><span>\u73b0\u5728\uff0c\u5c06<\/span><code>button<\/code><span>\u5b58\u6839\u6dfb\u52a0\u5230<\/span><code>lightning<\/code><span>\u521a\u521b\u5efa\u7684\u76ee\u5f55\u4e2d\u3002<\/span><\/p>\n<ol>\n<li><span>\u53f3\u952e\u5355\u51fb<\/span><code>lightning<\/code><span>\u5728\u6700\u540e\u4e00\u6b65\u4e2d\u521b\u5efa\u7684\u76ee\u5f55\uff0c\u7136\u540e\u9009\u62e9<\/span><strong><span>New File<\/span><\/strong><span>\u3002<\/span><\/li>\n<li><span>\u8f93\u5165<\/span><code>button.html<\/code><span>\u65b0\u6587\u4ef6\u7684\u540d\u79f0\u3002<\/span><\/li>\n<li><span>\u5728\u65b0\u6587\u4ef6\u4e2d\u8f93\u5165\u4ee5\u4e0b\u4ee3\u7801\u5757\uff1a<\/span>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span>template<span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\">\u00a0<\/div>\n<\/div>\n<\/div>\n<\/li>\n<li><span>\u4fdd\u5b58\u6587\u4ef6\u3002<\/span><\/li>\n<li><span>\u53f3\u952e\u5355\u51fb<\/span><code>lightning<\/code><span>\u76ee\u5f55\uff0c\u7136\u540e\u9009\u62e9\u201c<\/span><strong><span>\u65b0\u5efa\u6587\u4ef6\u201d<\/span><\/strong><span>\u3002<\/span><\/li>\n<li><span>\u8f93\u5165<\/span><code>button.js<\/code><span>\u65b0\u6587\u4ef6\u7684\u540d\u79f0\u3002<\/span><\/li>\n<li><span>\u5728\u65b0\u6587\u4ef6\u4e2d\u8f93\u5165\u4ee5\u4e0b\u4ee3\u7801\u5757\uff1a<\/span>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token class-name\">LightningElement<\/span><span class=\"token punctuation\">,<\/span> api <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lwc'<\/span><span class=\"token punctuation\">;<\/span>\n  \nexport <span class=\"token keyword\">default<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Button<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">LightningElement<\/span> <span class=\"token punctuation\">{<\/span>\n  <span class=\"token annotation punctuation\">@api<\/span> disabled<span class=\"token punctuation\">;<\/span>\n  <span class=\"token annotation punctuation\">@api<\/span> iconName<span class=\"token punctuation\">;<\/span>\n  <span class=\"token annotation punctuation\">@api<\/span> iconPosition<span class=\"token punctuation\">;<\/span>\n  <span class=\"token annotation punctuation\">@api<\/span> label<span class=\"token punctuation\">;<\/span>\n  <span class=\"token annotation punctuation\">@api<\/span> name<span class=\"token punctuation\">;<\/span>\n  <span class=\"token annotation punctuation\">@api<\/span> type<span class=\"token punctuation\">;<\/span>\n  <span class=\"token annotation punctuation\">@api<\/span> value<span class=\"token punctuation\">;<\/span>\n  <span class=\"token annotation punctuation\">@api<\/span> variant<span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\">\u00a0<\/div>\n<\/div>\n<\/div>\n<\/li>\n<li><span>\u4fdd\u5b58\u6587\u4ef6\u3002<\/span><\/li>\n<\/ol>\n<p><span>\u8fd9\u4e24\u4e2a\u6587\u4ef6\u662flightning-stubs\u6587\u4ef6\u5939\u4e2d\u7684lightning-button\u6587\u4ef6\u7684\u526f\u672c\u3002\u5982\u679c\u9700\u8981\uff0c\u5b83\u4eec\u53ef\u4ee5\u8986\u76d6\u7528\u4e8eJest\u6d4b\u8bd5\u7684\u57fa\u672c\u95ea\u7535\u6309\u94ae\u3002<\/span><\/p>\n<p><span>\u73b0\u5728\uff0c\u6211\u4eec\u53ef\u4ee5\u8986\u76d6sfdx-lwc-jest\u63d0\u4f9b\u7684\u9ed8\u8ba4\u5b58\u6839\u3002\u6765\u81ea\u5176\u4ed6\u540d\u79f0\u7a7a\u95f4\u7684\u7ec4\u4ef6\u5462\uff1f\u6211\u4eec\u53ea\u9700\u8fdb\u884c\u4e00\u4e9b\u8c03\u6574\u5c31\u53ef\u4ee5\u5904\u7406\u8fd9\u4e9b\u60c5\u51b5\u3002\u63a5\u4e0b\u6765\u8ba9\u6211\u4eec\u6df1\u5165\u63a2\u8ba8\u3002<\/span><\/p>\n<h2 id=\"mocking-other-components\"><span>\u6a21\u62df\u5176\u4ed6\u7ec4\u4ef6<\/span><\/h2>\n<p><span>\u8ba9\u6211\u4eec\u4ece\u6a21\u62df\u5177\u6709\u4e0d\u540c\u540d\u79f0\u7a7a\u95f4\u7684\u7ec4\u4ef6\u5f00\u59cb\u3002\u4e3a\u6b64\uff0c\u60a8\u8bbe\u7f6e\u4e86\u4e00\u4e2aJest\u6d4b\u8bd5\u5931\u8d25\u7684Lightning Web\u7ec4\u4ef6\uff0c\u7136\u540e\u6211\u4eec\u5c06\u6a21\u62df\u51fa\u4e00\u4e2a\u4fee\u590d\u7a0b\u5e8f\u3002<\/span><\/p>\n<ol>\n<li><span>\u5728Visual Studio Code\u4e2d\u521b\u5efa\u4e00\u4e2a\u65b0\u7684Lightning Web\u7ec4\u4ef6\u3002<\/span><\/li>\n<li><span>\u5c06\u540d\u79f0\u8bbe\u7f6e\u4e3a<\/span><code>otherComponents<\/code><span>\u3002<\/span><\/li>\n<li><span>\u73b0\u5728\u4ee5\u53e6\u4e00\u79cd\u65b9\u5f0f\u6765\u521b\u5efaJest\u6d4b\u8bd5\u3002\u5728\u7ec8\u7aef\u4e2d\u8fd0\u884c\u4ee5\u4e0bCLI\u547d\u4ee4\uff1a<\/span>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\">sfdx force<span class=\"token operator\">:<\/span>lightning<span class=\"token operator\">:<\/span>lwc<span class=\"token operator\">:<\/span>test<span class=\"token operator\">:<\/span>create <span class=\"token operator\">-<\/span>f force<span class=\"token operator\">-<\/span>app<span class=\"token operator\">\/<\/span>main<span class=\"token operator\">\/<\/span><span class=\"token keyword\">default<\/span><span class=\"token operator\">\/<\/span>lwc<span class=\"token operator\">\/<\/span>otherComponents<span class=\"token operator\">\/<\/span>otherComponents<span class=\"token punctuation\">.<\/span>js<\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\">\u00a0<\/div>\n<\/div>\n<\/div>\n<\/li>\n<\/ol>\n<p><span>\u6b64\u547d\u4ee4\u5c06\u81ea\u52a8\u521b\u5efa<\/span><code>__tests__<\/code><span>\u6587\u4ef6\u5939\u548c<\/span><code>otherComponents.test.js<\/code><span>\u6d4b\u8bd5\u6587\u4ef6\u3002\u8bf7\u6ce8\u610f\uff0c\u5bfc\u5165\u5df2\u7ecf\u5728\u90a3\u91cc\uff0c\u5e76\u4e14\u521d\u59cb\u63cf\u8ff0\u5757\u5df2\u7ecf\u5728\u6b64\u5904\uff0c\u5e76\u4e14\u521d\u59cb\u6d4b\u8bd5\u5931\u8d25\u3002\u00a0<\/span><\/p>\n<p><span>\u8fd0\u884c\u8be5\u6d4b\u8bd5\u5931\u8d25\uff0c\u56e0\u4e3a\u6211\u4eec\u671f\u671b1\u4e3a2\u3002\u8ba9\u6211\u4eec\u5bf9\u5176\u8fdb\u884c\u4fee\u590d\uff0c\u4ee5\u4fbf\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u5176\u4ed6\u7ec4\u4ef6\u672a\u5b58\u6839\u65f6\u5982\u4f55\u51fa\u9519\u3002<\/span><\/p>\n<ol>\n<li><span>\u6253\u5f00\u6d4b\u8bd5\u6587\u4ef6<\/span><code>otherComponents.test.js<\/code><span>\u5e76\u66f4\u65b0\u6d4b\u8bd5\u4ee5\u671f\u671b1\u4e3a1\uff1a<\/span>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token function\">expect<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">toBe<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\">\u00a0<\/div>\n<\/div>\n<\/div>\n<\/li>\n<li><span>\u4fdd\u5b58\u6587\u4ef6\u5e76\u8fd0\u884c\u6d4b\u8bd5\u3002<\/span><\/li>\n<li><span>\u6d4b\u8bd5\u901a\u8fc7\u3002<\/span><\/li>\n<\/ol>\n<p><span>\u73b0\u5728\uff0c\u6211\u4eec\u5411LWC\u6dfb\u52a0\u5177\u6709\u4e0d\u540c\u540d\u79f0\u7a7a\u95f4\u7684\u7ec4\u4ef6\u3002<\/span><\/p>\n<ol>\n<li><span>\u6253\u5f00<\/span><code>otherComponents.html<\/code><span>\u6587\u4ef6\u5e76\u5728\u6a21\u677f\u6807\u7b7e\u4e4b\u95f4\u6dfb\u52a0\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/span>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token operator\">&lt;<\/span>thunder<span class=\"token operator\">-<\/span>hammer<span class=\"token operator\">-<\/span>button onclick<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>makeNoise<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>thunder<span class=\"token operator\">-<\/span>hammer<span class=\"token operator\">-<\/span>button<span class=\"token operator\">&gt;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\">\u00a0<\/div>\n<\/div>\n<\/div>\n<\/li>\n<li><span>\u4fdd\u5b58\u6587\u4ef6\u5e76\u8fd0\u884c\u6d4b\u8bd5\u3002<\/span><\/li>\n<li><span>\u6d4b\u8bd5\u7531\u4e8e\u65b0\u539f\u56e0\u800c\u5931\u8d25\uff1a<\/span>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token class-name\">Test<\/span> suite failed <span class=\"token keyword\">to<\/span> <span class=\"token namespace\">run<\/span>\n  <span class=\"token class-name\">Cannot<\/span> find <span class=\"token keyword\">module<\/span> <span class=\"token string\">'thunder\/hammerButton'<\/span> from <span class=\"token string\">'otherComponents.html'<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\">\u00a0<\/div>\n<\/div>\n<\/div>\n<\/li>\n<\/ol>\n<p><span>\u7531\u4e8e\u8be5<\/span><code>&lt;thunder-hammer-button&gt;<\/code><span>\u7ec4\u4ef6\u6765\u81ea\u53e6\u4e00\u4e2a\u540d\u79f0\u7a7a\u95f4\uff0c\u800c\u4e0d\u662f\u4f4d\u4e8e\u672c\u5730<\/span><code>lwc<\/code><span>\u76ee\u5f55\u4e2d\uff0c\u56e0\u6b64\u60a8\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u5b58\u6839\u5e76\u66f4\u65b0Jest\u914d\u7f6e\uff0c\u4ee5\u5c06\u8fd9\u4e9b\u7ec4\u4ef6\u7684\u540d\u79f0\u6620\u5c04\u5230\u6a21\u62df\u6587\u4ef6\u3002<\/span><\/p>\n<p><span>\u9996\u5148\uff0c\u60a8\u9700\u8981\u6dfb\u52a0\u4e00\u4e2a\u96f7\u9e23\u76ee\u5f55\u6765\u8868\u793a\u540d\u79f0\u7a7a\u95f4\u3002\u7136\u540e\u6dfb\u52a0\u6587\u4ef6\u4ee5\u5c06\u5176\u5b58\u6839\u3002<\/span><\/p>\n<ol>\n<li><span>\u53f3\u952e\u5355\u51fb<\/span><code>jest-mocks<\/code><span>\u76ee\u5f55\u4e2d\u7684<\/span><code>force-app\/test\/<\/code><span>\u76ee\u5f55\uff0c\u7136\u540e\u9009\u62e9<\/span><strong><span>\u65b0\u5efa\u6587\u4ef6\u5939<\/span><\/strong><span>\u3002<\/span><\/li>\n<li><span>\u8f93\u5165<\/span><code>thunder<\/code><span>\u65b0\u76ee\u5f55\u7684\u540d\u79f0\u3002<\/span><\/li>\n<li><span>\u53f3\u952e\u5355\u51fb<\/span><code>thunder<\/code><span>\u76ee\u5f55\uff0c\u7136\u540e\u9009\u62e9\u201c<\/span><strong><span>\u65b0\u5efa\u6587\u4ef6\u201d<\/span><\/strong><span>\u3002<\/span><\/li>\n<li><span>\u8f93\u5165<\/span><code>hammerButton.html<\/code><span>\u65b0\u6587\u4ef6\u7684\u540d\u79f0\u3002<\/span><\/li>\n<li><span>\u5728\u65b0\u6587\u4ef6\u4e2d\u8f93\u5165\u4ee5\u4e0b\u4ee3\u7801\u5757\uff1a<\/span>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span>template<span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\">\u00a0<\/div>\n<\/div>\n<\/div>\n<\/li>\n<li><span>\u4fdd\u5b58\u6587\u4ef6\u3002<\/span><\/li>\n<li><span>\u53f3\u952e\u5355\u51fb\u65b0<\/span><code>thunder<\/code><span>\u76ee\u5f55\uff0c\u7136\u540e\u9009\u62e9\u201c<\/span><strong><span>\u65b0\u5efa\u6587\u4ef6\u201d<\/span><\/strong><span>\u3002<\/span><\/li>\n<li><span>\u8f93\u5165<\/span><code>hammerButton.js<\/code><span>\u65b0\u6587\u4ef6\u7684\u540d\u79f0\u3002<\/span><\/li>\n<li><span>\u5728\u65b0\u6587\u4ef6\u4e2d\u8f93\u5165\u4ee5\u4e0b\u4ee3\u7801\u5757\uff1a<\/span>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token class-name\">LightningElement<\/span><span class=\"token punctuation\">,<\/span> api <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lwc'<\/span><span class=\"token punctuation\">;<\/span>\n  \nexport <span class=\"token keyword\">default<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">HammerButton<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">LightningElement<\/span> <span class=\"token punctuation\">{<\/span>\n  <span class=\"token annotation punctuation\">@api<\/span> label<span class=\"token punctuation\">;<\/span>\n  <span class=\"token comment\">\/\/ any other implementation you may want to expose here<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\">\u00a0<\/div>\n<\/div>\n<\/div>\n<\/li>\n<li><span>\u4fdd\u5b58\u6587\u4ef6\u5e76\u8fd0\u884c\u6d4b\u8bd5\u3002<\/span><\/li>\n<li><span>\u6d4b\u8bd5\u5931\u8d25\u3002\u6211\u4eec\u9700\u8981\u66f4\u65b0Jest\u914d\u7f6e\u6587\u4ef6\u3002<\/span><\/li>\n<li><span>\u6253\u5f00<\/span><code>jest.config.js<\/code><span>\u5e76\u6dfb\u52a0\u4ee5\u4e0b<\/span><code>moduleNameMapper: {<\/code><span>\u884c\uff1a<\/span>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token string\">'^thunder\/hammerButton$'<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">'&lt;rootDir&gt;\/force-app\/test\/jest-mocks\/thunder\/hammerButton'<\/span><span class=\"token punctuation\">,<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\">\u00a0<\/div>\n<\/div>\n<\/div>\n<\/li>\n<li><span>\u4fdd\u5b58\u6587\u4ef6\u5e76\u8fd0\u884c\u6d4b\u8bd5\u3002<\/span><\/li>\n<li><span>\u592a\u68d2\u4e86\uff01\u6d4b\u8bd5\u901a\u8fc7\u3002<\/span><\/li>\n<\/ol>\n<p><span>\u6709\u65f6\uff0c\u60a8\u4f7f\u7528\u7684LWC\u4f1a\u5bfc\u5165\u53e6\u4e00\u4e2a\u4e0d\u5728Salesforce DX\u9879\u76ee\u7684\u672c\u5730LWC\u76ee\u5f55\u4e2d\u7684LWC\u3002\u6ca1\u6709\u5b58\u6839\uff0c\u5b83\u4eec\u5c06\u5bfc\u81f4Jest\u5931\u8d25\u3002\u8ba9\u6211\u4eec\u6d4b\u8bd5\u4e00\u4e0b\u3002<\/span><\/p>\n<ol>\n<li><span>\u6253\u5f00<\/span><code>otherComponents.html<\/code><span>\u6587\u4ef6\uff0c\u5e76\u5728\u7b2c\u4e00\u4e2a\u6a21\u677f\u6807\u8bb0\u540e\u6dfb\u52a0\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/span>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token operator\">&lt;<\/span>c<span class=\"token operator\">-<\/span>display<span class=\"token operator\">-<\/span>panel errors<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>error<span class=\"token punctuation\">}<\/span> notes<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>messages<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>c<span class=\"token operator\">-<\/span>display<span class=\"token operator\">-<\/span>panel<span class=\"token operator\">&gt;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\">\u00a0<\/div>\n<\/div>\n<\/div>\n<\/li>\n<li><span>\u4fdd\u5b58\u6587\u4ef6\u5e76\u8fd0\u884c\u6d4b\u8bd5\u3002<\/span><\/li>\n<li><span>\u6d4b\u8bd5\u5931\u8d25\uff0c\u56e0\u4e3a\u627e\u4e0d\u5230\u7ec4\u4ef6\u3002<\/span><\/li>\n<\/ol>\n<p><span>\u60a8\u53ef\u4ee5\u4f7f\u7528\u5b58\u6839\u4fee\u590d\u5b83\u3002\u9996\u5148\u521b\u5efa\u5b58\u6839\uff0c\u7136\u540e\u66f4\u65b0Jest\u914d\u7f6e\u3002<\/span><\/p>\n<ol>\n<li><span>\u53f3\u952e\u5355\u51fb<\/span><code>jest-mocks<\/code><span>\u76ee\u5f55\u4e2d\u7684<\/span><code>force-app\/test\/<\/code><span>\u76ee\u5f55\uff0c\u7136\u540e\u9009\u62e9<\/span><strong><span>\u65b0\u5efa\u6587\u4ef6\u5939<\/span><\/strong><span>\u3002<\/span><\/li>\n<li><span>\u8f93\u5165<\/span><code>c<\/code><span>\u65b0\u76ee\u5f55\u7684\u540d\u79f0\u3002<\/span><\/li>\n<li><span>\u53f3\u952e\u5355\u51fb<\/span><code>c<\/code><span>\u76ee\u5f55\uff0c\u7136\u540e\u9009\u62e9\u201c<\/span><strong><span>\u65b0\u5efa\u6587\u4ef6\u201d<\/span><\/strong><span>\u3002<\/span><\/li>\n<li><span>\u8f93\u5165<\/span><code>displayPanel.html<\/code><span>\u65b0\u6587\u4ef6\u7684\u540d\u79f0\u3002<\/span><\/li>\n<li><span>\u5728\u65b0\u6587\u4ef6\u4e2d\u8f93\u5165\u4ee5\u4e0b\u4ee3\u7801\u5757\uff1a<\/span>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span>template<span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\">\u00a0<\/div>\n<\/div>\n<\/div>\n<\/li>\n<li><span>\u4fdd\u5b58\u6587\u4ef6\u3002<\/span><\/li>\n<li><span>\u53f3\u952e\u5355\u51fb\u65b0<\/span><code>c<\/code><span>\u76ee\u5f55\uff0c\u7136\u540e\u9009\u62e9\u201c<\/span><strong><span>\u65b0\u5efa\u6587\u4ef6\u201d<\/span><\/strong><span>\u3002<\/span><\/li>\n<li><span>\u8f93\u5165<\/span><code>displayPanel.js<\/code><span>\u65b0\u6587\u4ef6\u7684\u540d\u79f0\u3002<\/span><\/li>\n<li><span>\u5728\u65b0\u6587\u4ef6\u4e2d\u8f93\u5165\u4ee5\u4e0b\u4ee3\u7801\u5757\uff1a<\/span>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token class-name\">LightningElement<\/span><span class=\"token punctuation\">,<\/span> api <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lwc'<\/span><span class=\"token punctuation\">;<\/span>\n  \nexport <span class=\"token keyword\">default<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">DisplayPanel<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">LightningElement<\/span> <span class=\"token punctuation\">{<\/span>\n  <span class=\"token annotation punctuation\">@api<\/span> errors<span class=\"token punctuation\">;<\/span>\n  <span class=\"token annotation punctuation\">@api<\/span> notes<span class=\"token punctuation\">;<\/span>\n  <span class=\"token comment\">\/\/ any other implementation you may want to expose here<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\">\u00a0<\/div>\n<\/div>\n<\/div>\n<p><span>\u8bf7\u6ce8\u610f\uff0c\u7ec4\u4ef6\u8c03\u7528\u4e2d\u4f20\u9012\u7684\u6bcf\u4e2a\u53c2\u6570\u90fd\u6709\u4e00\u4e2aapi\u88c5\u9970\u5668\u3002<\/span><\/li>\n<li><span>\u4fdd\u5b58\u6587\u4ef6\u3002<\/span><\/li>\n<li><span>\u6253\u5f00<\/span><code>jest.config.js<\/code><span>\u5e76\u6dfb\u52a0\u4ee5\u4e0b<\/span><code>moduleNameMapper: {<\/code><span>\u884c\uff1a<\/span>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token string\">'^c\/displayPanel$'<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">'&lt;rootDir&gt;\/force-app\/test\/jest-mocks\/c\/displayPanel'<\/span><span class=\"token punctuation\">,<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\">\u00a0<\/div>\n<\/div>\n<\/div>\n<\/li>\n<li><span>\u4fdd\u5b58\u6587\u4ef6\u5e76\u8fd0\u884c\u6d4b\u8bd5\u3002<\/span><\/li>\n<li><span>\u6d4b\u8bd5\u901a\u8fc7\u3002<\/span><\/li>\n<\/ol>\n<p><span>\u505a\u5f97\u597d\uff01\u73b0\u5728\uff0c\u60a8\u53ef\u4ee5\u4e3a\u6240\u6709Lightning Web\u7ec4\u4ef6\u7f16\u5199\u6d4b\u8bd5\u3002\u60a8\u8fd8\u53ef\u4ee5\u6839\u636e\u9700\u8981\u4f7f\u8fd9\u4e9b\u5b58\u6839\u5b9e\u73b0\u53d8\u5f97\u590d\u6742\u6216\u7b80\u5355\u3002<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b66\u4e60\u76ee\u6807 \u5b8c\u6210\u672c\u5355\u5143\u540e\uff0c\u60a8\u5c06\u80fd\u591f\uff1a \u63cf\u8ff0sfdx-lwc-jest\u8f6f\u4ef6\u5305\u63d0\u4f9b\u7684\u5b58\u6839\u3002 \u4e86\u89e3\u5982\u4f55\u8986\u76d6Jest\u914d\u7f6e &hellip; <a href=\"http:\/\/www.ponybai.com\/?p=2399\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u95ea\u7535Web\u7ec4\u4ef6\u6d4b\u8bd5 &#8211; \u6a21\u62df\u5176\u4ed6\u7ec4\u4ef6<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[152],"tags":[],"class_list":["post-2399","post","type-post","status-publish","format-standard","hentry","category-web"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u95ea\u7535Web\u7ec4\u4ef6\u6d4b\u8bd5 - \u6a21\u62df\u5176\u4ed6\u7ec4\u4ef6 - \u767d\u767d\u968f\u7b14<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/www.ponybai.com\/?p=2399\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u95ea\u7535Web\u7ec4\u4ef6\u6d4b\u8bd5 - 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name=\"author\" content=\"ponybai\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"ponybai\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"http:\/\/www.ponybai.com\/?p=2399#article\",\"isPartOf\":{\"@id\":\"http:\/\/www.ponybai.com\/?p=2399\"},\"author\":{\"name\":\"ponybai\",\"@id\":\"http:\/\/www.ponybai.com\/#\/schema\/person\/935c7592c850c65e1e5eba4530dbf883\"},\"headline\":\"\u95ea\u7535Web\u7ec4\u4ef6\u6d4b\u8bd5 &#8211; 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