{"id":2397,"date":"2020-06-25T15:31:55","date_gmt":"2020-06-25T07:31:55","guid":{"rendered":"http:\/\/www.ponybai.com\/?p=2397"},"modified":"2020-06-25T15:31:55","modified_gmt":"2020-06-25T07:31:55","slug":"lwc%e6%b5%8b%e8%af%95-%e7%bc%96%e5%86%99%e4%b8%80%e4%b8%aa%e9%92%88%e5%af%b9wire%e7%9a%84jest%e6%b5%8b%e8%af%95","status":"publish","type":"post","link":"http:\/\/www.ponybai.com\/?p=2397","title":{"rendered":"\u95ea\u7535Web\u7ec4\u4ef6\u6d4b\u8bd5 &#8211; \u7f16\u5199\u4e00\u4e2a\u9488\u5bf9wire\u7684Jest\u6d4b\u8bd5"},"content":{"rendered":"<h2 id=\"learning-objectives\">\u5b66\u4e60\u76ee\u6807<\/h2>\n<p>\u5b8c\u6210\u672c\u5355\u5143\u540e\uff0c\u60a8\u5c06\u80fd\u591f\uff1a<\/p>\n<ul>\n<li>\u5217\u51fa\u7528\u4e8e\u6709\u7ebf\u670d\u52a1\u7684\u4e09\u4e2a\u4e3b\u8981\u9002\u914d\u5668\u3002<\/li>\n<li>\u89e3\u91ca\u6709\u7ebf\u670d\u52a1\u7684\u6a21\u62df\u6570\u636e\u3002<\/li>\n<li>\u4e86\u89e3\u53cd\u5e94\u53d8\u91cf\u53ca\u5176\u5f71\u54cd\u3002<\/li>\n<\/ul>\n<h2 id=\"testing-wire-service\">\u6d4b\u8bd5@Wire\u670d\u52a1<\/h2>\n<p>Lightning Web\u7ec4\u4ef6\u4f7f\u7528\u57fa\u4e8eLightning Data Service\u6784\u5efa\u7684\u7535\u6297\u7ebf\u670d\u52a1\u6765\u8bfb\u53d6Salesforce\u6570\u636e\u3002\u7ec4\u4ef6<code>@wire<\/code>\u5728\u5176JavaScript\u7c7b\u4e2d\u4f7f\u7528\u4ee5\u4ece<code>lightning\/ui*Api<\/code>\u6a21\u5757\u4e2d\u7684\u4e00\u4e2a\u6709\u7ebf\u9002\u914d\u5668\u8bfb\u53d6\u6570\u636e\u3002<\/p>\n<p>\u6709\u7ebf\u670d\u52a1\u4e4b\u6240\u4ee5\u5177\u6709\u54cd\u5e94\u6027\uff0c\u90e8\u5206\u539f\u56e0\u662f\u5b83\u652f\u6301\u54cd\u5e94\u53d8\u91cf\u3002\u53cd\u5e94\u53d8\u91cf\u4ee5\u5f00\u5934<code>$<\/code>\u3002\u5f53\u7535\u6297\u53d8\u91cf\u53d1\u751f\u53d8\u5316\u65f6\uff0c\u6709\u7ebf\u670d\u52a1\u4f1a\u63d0\u4f9b\u65b0\u6570\u636e\u3002\u5982\u679c\u6570\u636e\u5b58\u5728\u4e8e\u5ba2\u6237\u7aef\u7f13\u5b58\u4e2d\uff0c\u5219\u53ef\u80fd\u4e0d\u6d89\u53ca\u7f51\u7edc\u8bf7\u6c42\u3002<\/p>\n<p>\u6211\u4eec\u4f7f\u7528<code>@salesforce\/sfdx-lwc-jest<\/code>\u6d4b\u8bd5\u5b9e\u7528\u7a0b\u5e8f\u6765\u6d4b\u8bd5\u8fd9\u4e9b\u7ec4\u4ef6\u5982\u4f55\u5904\u7406\u6709\u7ebf\u670d\u52a1\u4e2d\u7684\u6570\u636e\u548c\u9519\u8bef\u3002<\/p>\n<p>\u6d4b\u8bd5\u8981\u6c42\u60a8\u5b8c\u5168\u63a7\u5236\u6d4b\u8bd5\u6d88\u8017\u7684\u8f93\u5165\u3002\u4e0d\u5141\u8bb8\u4efb\u4f55\u5916\u90e8\u4ee3\u7801\u6216\u6570\u636e\u4f9d\u8d56\u9879\u3002\u6211\u4eec\u4ece\u4e2d\u5bfc\u5165\u6d4b\u8bd5\u5b9e\u7528\u7a0b\u5e8fAPI<code>sfdx-lwc-jest<\/code>\u6765\u6a21\u62df\u6570\u636e\uff0c\u56e0\u6b64\u6211\u4eec\u7684\u6d4b\u8bd5\u4e0d\u4f9d\u8d56\u4e8e\u4e0d\u53ef\u9884\u6d4b\u7684\u56e0\u7d20\uff0c\u4f8b\u5982\u8fdc\u7a0b\u8c03\u7528\u6216\u670d\u52a1\u5668\u5ef6\u8fdf\u3002<\/p>\n<p>\u6709\u4e09\u4e2a\u7528\u4e8e\u6a21\u62df\u6709\u7ebf\u670d\u52a1\u6570\u636e\u7684\u9002\u914d\u5668\u3002<\/p>\n<ul>\n<li><strong>\u901a\u7528\u7535\u7ebf\u9002\u914d\u5668<\/strong>\uff1a\u8c03\u7528emit\uff08\uff09API\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\u5176\u4ed6\u4fe1\u606f\u3002<\/li>\n<li><strong>\u95ea\u7535\u6570\u636e\u670d\u52a1\uff08LDS\uff09\u6709\u7ebf\u9002\u914d\u5668<\/strong>\uff1aLDS\u9002\u914d\u5668\u6a21\u4eff\u95ea\u7535\u6570\u636e\u670d\u52a1\u884c\u4e3a\uff0c\u5e76\u5305\u542b\u6709\u5173\u6570\u636e\u5c5e\u6027\u7684\u4fe1\u606f\u3002<\/li>\n<li><strong>Apex\u7535\u7ebf\u9002\u914d\u5668<\/strong>\uff1aApex\u7535\u7ebf\u9002\u914d\u5668\u6a21\u62df\u5bf9Apex\u65b9\u6cd5\u7684\u8c03\u7528\uff0c\u5e76\u5305\u542b\u4efb\u4f55\u9519\u8bef\u72b6\u6001\u3002<\/li>\n<\/ul>\n<p>\u8ba9\u6211\u4eec\u770b\u4e00\u4e2a\u5178\u578b\u7684<code>@wire<\/code>\u88c5\u9970\u5668\u3002\u4f7f\u7528\u547d\u540d\u7684\u5bfc\u5165\u8bed\u6cd5\u5bfc\u5165\u7535\u7ebf\u9002\u914d\u5668\u3002\u7528\u88c5\u9970\u4e00\u4e2a\u5c5e\u6027\u6216\u51fd\u6570\uff0c<code>@wire<\/code>\u5e76\u6307\u5b9a\u7535\u7ebf\u9002\u914d\u5668\u3002\u6bcf\u4e2a\u6709\u7ebf\u9002\u914d\u5668\u5b9a\u4e49\u4e00\u4e2a\u6570\u636e\u7c7b\u578b\u3002<\/p>\n<p>\u6b64\u4ee3\u7801\u5c06\u5bfc\u5165Account.Name\u5b57\u6bb5\uff0c\u5e76\u5728\u7535\u7ebf\u9002\u914d\u5668\u7684\u914d\u7f6e\u5bf9\u8c61\u4e2d\u4f7f\u7528\u5b83\u3002<\/p>\n<div>\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> wire <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lwc'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> getRecord <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lightning\/uiRecordApi'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> ACCOUNT_NAME_FIELD from <span class=\"token string\">'@salesforce\/schema\/Account.Name'<\/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\">Record<\/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> recordId<span class=\"token punctuation\">;<\/span>\n  \n  <span class=\"token annotation punctuation\">@wire<\/span><span class=\"token punctuation\">(<\/span>getRecord<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">{<\/span> recordId<span class=\"token operator\">:<\/span> <span class=\"token string\">'$recordId'<\/span><span class=\"token punctuation\">,<\/span> fields<span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span>ACCOUNT_NAME_FIELD<span class=\"token punctuation\">]<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span>\n  wiredRecord<span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u8ba9\u6211\u4eec\u4ed4\u7ec6\u770b\u770b\u3002<\/p>\n<ul>\n<li>\u7b2c8\u884c\u4f7f\u7528<code>@wire<\/code>\u88c5\u9970\u5668\u8bbf\u95ee\u5bfc\u5165\u7684<code>getRecord<\/code>\u65b9\u6cd5\uff0c\u5e76\u5c06\u53cd\u5e94<code>$recordId<\/code>\u53d8\u91cf\u4f5c\u4e3a\u5176\u7b2c\u4e00\u4e2a\u53c2\u6570\u4f20\u9012\u3002\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f<code>Account.Name<\/code>\u00a0\u5bf9\u7b2c3\u884c\u4e2d\u4ece\u67b6\u6784\u5bfc\u5165\u7684\u5f15\u7528\u3002<\/li>\n<li>\u7b2c9\u884c\u53ef\u4ee5\u662f\u79c1\u6709\u5c5e\u6027\uff0c\u4e5f\u53ef\u4ee5\u662f\u4ece\u6709\u7ebf\u670d\u52a1\u63a5\u6536\u6570\u636e\u6d41\u7684\u51fd\u6570\u3002\u5982\u679c\u662f\u5c5e\u6027\uff0c\u5219\u7ed3\u679c\u5c06\u8fd4\u56de\u5230\u8be5\u5c5e\u6027\u7684data\u5c5e\u6027\u6216error\u5c5e\u6027\u3002\u5982\u679c\u662f\u51fd\u6570\uff0c\u5219\u7ed3\u679c\u5c06\u5728\u5177\u6709data\u5c5e\u6027\u548cerror\u5c5e\u6027\u7684\u5bf9\u8c61\u4e2d\u8fd4\u56de\u3002<\/li>\n<\/ul>\n<p>\u73b0\u5728\u8ba9\u6211\u4eec\u770b\u4e00\u4e0b\u4e0d\u540c\u7684\u9002\u914d\u5668\u3002<\/p>\n<h2 id=\"using-the-generic-wire-adapter\">\u4f7f\u7528\u901a\u7528\u7535\u7ebf\u9002\u914d\u5668<\/h2>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u5c06<code>@wire<\/code>\u670d\u52a1\u4e0eCurrentPageReference\u4e00\u8d77\u4f7f\u7528\u3002<\/p>\n<p>\u95ea\u7535\u5bfc\u822a\u670d\u52a1\u63d0\u4f9b\u6709\u7ebf\u9002\u914d\u5668\u548c\u529f\u80fd\uff0c\u4ee5\u751f\u6210URL\u6216\u5bfc\u822a\u5230\u9875\u9762\u5f15\u7528\u3002\u6211\u4eec\u5c06\u7528\u4e8e<code>CurrentPageReference<\/code>\u83b7\u53d6\u5bf9Salesforce\u4e2d\u5f53\u524d\u9875\u9762\u7684\u5f15\u7528\u5e76\u4e3a\u5176\u521b\u5efa\u6d4b\u8bd5\u3002<\/p>\n<ol>\n<li>\u5728Visual Studio Code\u4e2d\uff0c\u53f3\u952e\u5355\u51fb\u8be5<code>lwc<\/code>\u6587\u4ef6\u5939\uff0c\u7136\u540e\u9009\u62e9<strong>SFDX\uff1aCreate Lightning Web Component<\/strong>\u3002<\/li>\n<li>\u8f93\u5165<code>wireCPR<\/code>\u65b0\u7ec4\u4ef6\u7684\u540d\u79f0\u3002<\/li>\n<li>\u6309<strong>Enter\u952e<\/strong>\u3002<\/li>\n<li>\u6309<strong>Enter<\/strong>\u00a0\u63a5\u53d7\u9ed8\u8ba4\u503c<code>force-app\/main\/default\/lwc<\/code>\u3002<\/li>\n<li>\u53f3\u952e\u5355\u51fb\u521a\u521b\u5efa\u7684<code>wireCPR<\/code>\u76ee\u5f55\uff0c\u7136\u540e\u9009\u62e9\u201c<strong>\u65b0\u5efa\u6587\u4ef6\u5939\u201d<\/strong>\u3002<\/li>\n<li>\u8f93\u5165<code>__tests__<\/code>\u3002<\/li>\n<li>\u6309<strong>Enter\u952e<\/strong>\u3002<\/li>\n<li>\u53f3\u952e\u5355\u51fb<code>__tests__<\/code>\u76ee\u5f55\uff0c\u7136\u540e\u9009\u62e9\u201c<strong>\u65b0\u5efa\u6587\u4ef6\u201d<\/strong>\u3002<\/li>\n<li>\u8f93\u5165<code>wireCPR.test.js<\/code>\u3002<\/li>\n<li>\u6309<strong>Enter\u952e<\/strong>\u3002<\/li>\n<li>\u5728\u65b0\u6587\u4ef6\u4e2d\u8f93\u5165\u4ee5\u4e0b\u4ee3\u7801\u5757\uff1a\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> createElement <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lwc'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> <span class=\"token class-name\">WireCPR<\/span> from <span class=\"token string\">'c\/wireCPR'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token class-name\">CurrentPageReference<\/span> <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lightning\/navigation'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> registerTestWireAdapter <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'@salesforce\/sfdx-lwc-jest'<\/span><span class=\"token punctuation\">;<\/span>\n  \n<span class=\"token comment\">\/\/ Mock realistic data<\/span>\n<span class=\"token keyword\">const<\/span> mockCurrentPageReference <span class=\"token operator\">=<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'.\/data\/CurrentPageReference.json'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n<span class=\"token comment\">\/\/ Register a standard test wire adapter.<\/span>\n<span class=\"token keyword\">const<\/span> currentPageReferenceAdapter <span class=\"token operator\">=<\/span> <span class=\"token function\">registerTestWireAdapter<\/span><span class=\"token punctuation\">(<\/span>\n  <span class=\"token class-name\">CurrentPageReference<\/span>\n<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n<span class=\"token function\">describe<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'c-wire-c-p-r'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n  <span class=\"token function\">afterEach<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>document<span class=\"token punctuation\">.<\/span>body<span class=\"token punctuation\">.<\/span>firstChild<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n      document<span class=\"token punctuation\">.<\/span>body<span class=\"token punctuation\">.<\/span><span class=\"token function\">removeChild<\/span><span class=\"token punctuation\">(<\/span>document<span class=\"token punctuation\">.<\/span>body<span class=\"token punctuation\">.<\/span>firstChild<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n  <span class=\"token function\">it<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'renders the current page reference in &lt;pre&gt; tag'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n    <span class=\"token keyword\">const<\/span> element <span class=\"token operator\">=<\/span> <span class=\"token function\">createElement<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'c-wire-c-p-r'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">{<\/span>\n      is<span class=\"token operator\">:<\/span> <span class=\"token class-name\">WireCPR<\/span>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    document<span class=\"token punctuation\">.<\/span>body<span class=\"token punctuation\">.<\/span><span class=\"token function\">appendChild<\/span><span class=\"token punctuation\">(<\/span>element<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n    <span class=\"token comment\">\/\/ Select element for validation<\/span>\n    <span class=\"token keyword\">const<\/span> preElement <span class=\"token operator\">=<\/span> element<span class=\"token punctuation\">.<\/span>shadowRoot<span class=\"token punctuation\">.<\/span><span class=\"token function\">querySelector<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'pre'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token function\">expect<\/span><span class=\"token punctuation\">(<\/span>preElement<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>not<span class=\"token punctuation\">.<\/span><span class=\"token function\">toBeNull<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n    <span class=\"token comment\">\/\/ Emit data from @wire<\/span>\n    currentPageReferenceAdapter<span class=\"token punctuation\">.<\/span><span class=\"token function\">emit<\/span><span class=\"token punctuation\">(<\/span>mockCurrentPageReference<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n    <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">Promise<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">resolve<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">then<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n      <span class=\"token function\">expect<\/span><span class=\"token punctuation\">(<\/span>preElement<span class=\"token punctuation\">.<\/span>textContent<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">toBe<\/span><span class=\"token punctuation\">(<\/span>\n        JSON<span class=\"token punctuation\">.<\/span><span class=\"token function\">stringify<\/span><span class=\"token punctuation\">(<\/span>mockCurrentPageReference<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span>\n      <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/li>\n<li>\u4fdd\u5b58\u6587\u4ef6\u5e76\u8fd0\u884c\u6d4b\u8bd5\u3002<\/li>\n<\/ol>\n<p>\u8ba9\u6211\u4eec\u4ed4\u7ec6\u770b\u770b\u3002<\/p>\n<ul>\n<li>\u7b2c3\u884c\u548c\u7b2c4\u884c\u6709\u4e24\u4e2a\u65b0\u5bfc\u5165\uff1a<code>CurrentPageReference<\/code>\u548c<code>registerTestWireAdapter<\/code>\u3002<\/li>\n<li>\u7b2c7\u884c\u6293\u53d6\u5177\u6709\u6a21\u62df<code>PageReference<\/code>\u6570\u636e\u7684\u6587\u4ef6\u3002\u6211\u4eec\u5c1a\u672a\u521b\u5efa\u6b64\u6587\u4ef6\uff0c\u56e0\u6b64\u8fd9\u662f\u6d4b\u8bd5\u51fa\u9519\u7684\u7b2c\u4e00\u4e2a\u539f\u56e0\u3002\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\">'.\/data\/CurrentPageReference.json'<\/span> from <span class=\"token string\">'wireCPR.test.js'<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/li>\n<li>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u89e3\u51b3\u6b64\u95ee\u9898\u3002<\/li>\n<li>\u7b2c10\u884c\uff0c\u6211\u4eec\u6b63\u5728\u4f7f\u7528\u7684<code>registerTestWireAdapter<\/code>\u4e0e<code>CurrentPageReference<\/code>\u8fdb\u53e3\u7684\u6211\u4eec\u3002\u8fd9\u4f7f\u6211\u4eec\u53ef\u4ee5\u5728\u6d4b\u8bd5\u7684\u7a0d\u540e\u9636\u6bb5\u5bf9\u5176\u8fdb\u884c\u6a21\u62df\u3002<\/li>\n<li>\u7b2c32\u884c\u662f\u6211\u4eec\u4f7f\u7528\u586b\u5145\u6a21\u62df\u6570\u636e\u7684\u5730\u65b9<code>emit()<\/code>\u3002<\/li>\n<li>\u7b2c34\u884c\u542f\u52a8Promise\uff0c\u5b83\u5e0c\u671b\u5c06\u6a21\u62df\u6570\u636e\u66f4\u65b0\u5230\u4e2d<code>preElement<\/code>\u3002<\/li>\n<\/ul>\n<p>\u8ba9\u6211\u4eec\u521b\u5efa\u6d4b\u8bd5\u6570\u636e\u6587\u4ef6\u5e76\u66f4\u65b0\u4ee3\u7801\u4ee5\u4f7f\u6d4b\u8bd5\u901a\u8fc7\u3002\u9996\u5148\uff0c\u5728\u76ee\u5f55\u4e0b\u521b\u5efa\u4e00\u4e2a\u65b0\u76ee\u5f55<code>__tests__<\/code>\u6765\u5b58\u50a8\u6a21\u62df\u6570\u636e\u6587\u4ef6\u3002<\/p>\n<ol>\n<li>\u53f3\u952e\u5355\u51fb<code>__tests__<\/code>\u76ee\u5f55\uff0c\u7136\u540e\u9009\u62e9\u201c<strong>\u65b0\u5efa\u6587\u4ef6\u5939\u201d<\/strong>\u3002<\/li>\n<li>\u8f93\u5165<code>data<\/code>\u65b0\u76ee\u5f55\u7684\u540d\u79f0\u3002<\/li>\n<li>\u6309<strong>Enter\u952e<\/strong>\u3002<\/li>\n<li>\u53f3\u952e\u5355\u51fb<code>data<\/code>\u76ee\u5f55\uff0c\u7136\u540e\u9009\u62e9\u201c<strong>\u65b0\u5efa\u6587\u4ef6\u201d<\/strong>\u3002<\/li>\n<li>\u8f93\u5165<code>CurrentPageReference.json<\/code>\u3002<\/li>\n<li>\u6309<strong>Enter\u952e<\/strong>\u3002<\/li>\n<li>\u5728\u65b0\u6587\u4ef6\u4e2d\u8f93\u5165\u4ee5\u4e0bjson\u4ee3\u7801\u5757\uff1a\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token punctuation\">{<\/span>\n  <span class=\"token string\">\"type\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"standard__navItemPage\"<\/span><span class=\"token punctuation\">,<\/span>\n  <span class=\"token string\">\"attributes\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span>\n    <span class=\"token string\">\"apiName\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"Wire\"<\/span>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\n  <span class=\"token string\">\"state\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/li>\n<li>\u4fdd\u5b58\u6587\u4ef6\u5e76\u8fd0\u884c\u6d4b\u8bd5\u3002<\/li>\n<li>\u6d4b\u8bd5\u83b7\u53d6\u6b64\u9519\u8bef\u6d88\u606f\u3002\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>received<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>not<span class=\"token punctuation\">.<\/span><span class=\"token function\">toBeNull<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\n  <span class=\"token class-name\">Received<\/span><span class=\"token operator\">:<\/span> <span class=\"token keyword\">null<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<p>\u4f18\u79c0\u7684\u3002\u5373\u4f7f\u662f\u5931\u8d25\u7684\u6d4b\u8bd5\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7\u5728\u5904\u7406\u4ee3\u7801\u65f6\u5feb\u901f\u53d1\u73b0\u4efb\u4f55\u95ee\u9898\u6765\u4fc3\u8fdb\u8fdb\u6b65\u3002<\/li>\n<\/ol>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u6dfb\u52a0HTML\u548cJavaScript\u4ee3\u7801\u3002<\/p>\n<ol>\n<li>\u6253\u5f00<code>wireCPR.html<\/code>\u3002<\/li>\n<li>\u5728<code>template<\/code>\u6807\u7b7e\u5185\u6dfb\u52a0\u4ee5\u4e0b\u4ee3\u7801\uff1a\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\">  <span class=\"token operator\">&lt;<\/span>lightning<span class=\"token operator\">-<\/span>card title<span class=\"token operator\">=<\/span><span class=\"token string\">\"Wire CurrentPageReference\"<\/span> icon<span class=\"token operator\">-<\/span>name<span class=\"token operator\">=<\/span><span class=\"token string\">\"custom:custom67\"<\/span><span class=\"token operator\">&gt;<\/span>\n    <span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span>pre<span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">{<\/span>currentPageRef<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>pre<span class=\"token operator\">&gt;<\/span>\n  <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>lightning<span class=\"token operator\">-<\/span>card<span class=\"token operator\">&gt;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/li>\n<li>\u4fdd\u5b58\u6587\u4ef6\u3002<\/li>\n<li>\u6253\u5f00<code>wireCPR.js<\/code>\u5e76\u7528\u4ee5\u4e0b\u4ee3\u7801\u66ff\u6362\u4ee3\u7801\uff1a\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> wire <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lwc'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token class-name\">CurrentPageReference<\/span> <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lightning\/navigation'<\/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\">WireCPR<\/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\">@wire<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">CurrentPageReference<\/span><span class=\"token punctuation\">)<\/span> pageRef<span class=\"token punctuation\">;<\/span>\n  get <span class=\"token function\">currentPageRef<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n    <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>pageRef <span class=\"token operator\">?<\/span> JSON<span class=\"token punctuation\">.<\/span><span class=\"token function\">stringify<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>pageRef<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">:<\/span> <span class=\"token string\">''<\/span><span class=\"token punctuation\">;<\/span>\n  <span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/li>\n<li>\u4fdd\u5b58\u6587\u4ef6\u5e76\u8fd0\u884c\u6d4b\u8bd5\u3002<\/li>\n<li>\u6d4b\u8bd5\u901a\u8fc7\u3002<\/li>\n<\/ol>\n<p>\u8ba9\u6211\u4eec\u770b\u770b\u53d1\u751f\u4e86\u4ec0\u4e48\u3002\u4f7f\u7528<code>@wire<\/code>\u9002\u914d\u5668\u65f6\uff0c\u5b83\u5c06\u67e5\u627e\u4ece\u670d\u52a1\u8fd4\u56de\u7684\u4fe1\u606f\u3002\u6211\u4eec\u9700\u8981\u521b\u5efa\u8be5\u6570\u636e\u7684\u6a21\u62df\uff0c\u4ee5\u4ee3\u66ff\u5b9e\u9645\u5bf9\u670d\u52a1\u7684\u8c03\u7528\u4ee5\u83b7\u53d6\u6570\u636e\u3002\u8fd9\u6837\u53ef\u4ee5\u4f7f\u6211\u4eec\u4ec5\u6d4b\u8bd5\u5f53\u524d\u62e5\u6709\u7684\u9879\u76ee\uff0c\u800c\u4e0d\u6d4b\u8bd5\u6211\u4eec\u8303\u56f4\u4ee5\u5916\u7684\u9879\u76ee\u3002\u8fd9\u4e5f\u6709\u52a9\u4e8e\u4fdd\u6301\u6d4b\u8bd5\u901f\u5ea6\u3002<\/p>\n<h2 id=\"using-the-lightning-data-service-wire-adapter\">\u4f7f\u7528\u95ea\u7535\u6570\u636e\u670d\u52a1\u7ebf\u9002\u914d\u5668<\/h2>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u4f7f\u7528<code>@wire<\/code>\u95ea\u7535\u6570\u636e\u670d\u52a1\uff08LDS\uff09\u3002LDS\u4f7f\u6211\u4eec\u53ef\u4ee5\u5feb\u901f\u8bbf\u95ee\u81ea\u5b9a\u4e49\u548c\u6807\u51c6\u5bf9\u8c61\u3002\u6211\u4eec\u7684\u7ec4\u4ef6\u4f7f\u7528LDS\u4eceSalesforce\u83b7\u53d6\u6570\u636e\u5e76\u663e\u793a\u5b83\u3002\u6211\u4eec\u5c06\u521b\u5efa\u6d4b\u8bd5\u4ee5\u9a8c\u8bc1\u4f7f\u7528LDS\u9002\u914d\u5668\u53ef\u4ee5\u6309\u9884\u671f\u663e\u793a\u6570\u636e\u3002<\/p>\n<ol>\n<li>\u5728Visual Studio Code\u4e2d\u521b\u5efa\u4e00\u4e2a\u65b0\u7684Lightning Web\u7ec4\u4ef6\u3002<\/li>\n<li>\u5c06\u540d\u79f0\u8bbe\u7f6e\u4e3a<code>wireLDS<\/code>\u3002<\/li>\n<li>\u521b\u5efa<code>__tests__<\/code>\u76ee\u5f55\u3002<\/li>\n<li>\u6dfb\u52a0\u4e00\u4e2a\u540d\u4e3a\u7684\u6d4b\u8bd5\u6587\u4ef6<code>wireLDS.test.js<\/code>\u3002<\/li>\n<li>\u5c06\u4ee3\u7801\u6dfb\u52a0\u5230\u6d4b\u8bd5\u6587\u4ef6\uff1a\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> createElement <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lwc'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> <span class=\"token class-name\">WireLDS<\/span> from <span class=\"token string\">'c\/wireLDS'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> getRecord <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lightning\/uiRecordApi'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> registerLdsTestWireAdapter <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'@salesforce\/sfdx-lwc-jest'<\/span><span class=\"token punctuation\">;<\/span>\n  \n<span class=\"token comment\">\/\/ Mock realistic data<\/span>\n<span class=\"token keyword\">const<\/span> mockGetRecord <span class=\"token operator\">=<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'.\/data\/getRecord.json'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n<span class=\"token comment\">\/\/ Register as an LDS wire adapter<\/span>\n<span class=\"token keyword\">const<\/span> getRecordAdapter <span class=\"token operator\">=<\/span> <span class=\"token function\">registerLdsTestWireAdapter<\/span><span class=\"token punctuation\">(<\/span>getRecord<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n<span class=\"token function\">describe<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'c-wire-l-d-s'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n  <span class=\"token function\">afterEach<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>document<span class=\"token punctuation\">.<\/span>body<span class=\"token punctuation\">.<\/span>firstChild<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n      document<span class=\"token punctuation\">.<\/span>body<span class=\"token punctuation\">.<\/span><span class=\"token function\">removeChild<\/span><span class=\"token punctuation\">(<\/span>document<span class=\"token punctuation\">.<\/span>body<span class=\"token punctuation\">.<\/span>firstChild<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n  <span class=\"token function\">describe<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'getRecord @wire data'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n    <span class=\"token function\">it<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'renders contact details'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n      <span class=\"token keyword\">const<\/span> element <span class=\"token operator\">=<\/span> <span class=\"token function\">createElement<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'c-wire-l-d-s'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">{<\/span>\n        is<span class=\"token operator\">:<\/span> <span class=\"token class-name\">WireLDS<\/span>\n      <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n      document<span class=\"token punctuation\">.<\/span>body<span class=\"token punctuation\">.<\/span><span class=\"token function\">appendChild<\/span><span class=\"token punctuation\">(<\/span>element<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n      <span class=\"token comment\">\/\/ Emit data from @wire<\/span>\n      getRecordAdapter<span class=\"token punctuation\">.<\/span><span class=\"token function\">emit<\/span><span class=\"token punctuation\">(<\/span>mockGetRecord<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n      <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">Promise<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">resolve<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">then<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n        <span class=\"token comment\">\/\/ Select elements for validation<\/span>\n        <span class=\"token keyword\">const<\/span> nameElement <span class=\"token operator\">=<\/span> element<span class=\"token punctuation\">.<\/span>shadowRoot<span class=\"token punctuation\">.<\/span><span class=\"token function\">querySelector<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'p.accountName'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token function\">expect<\/span><span class=\"token punctuation\">(<\/span>nameElement<span class=\"token punctuation\">.<\/span>textContent<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">toBe<\/span><span class=\"token punctuation\">(<\/span>\n          <span class=\"token string\">'Account Name: '<\/span> <span class=\"token operator\">+<\/span> mockGetRecord<span class=\"token punctuation\">.<\/span>fields<span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Name<\/span><span class=\"token punctuation\">.<\/span>value\n        <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n        <span class=\"token keyword\">const<\/span> industryElement <span class=\"token operator\">=<\/span> element<span class=\"token punctuation\">.<\/span>shadowRoot<span class=\"token punctuation\">.<\/span><span class=\"token function\">querySelector<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'p.accountIndustry'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token function\">expect<\/span><span class=\"token punctuation\">(<\/span>industryElement<span class=\"token punctuation\">.<\/span>textContent<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">toBe<\/span><span class=\"token punctuation\">(<\/span>\n          <span class=\"token string\">'Industry: '<\/span> <span class=\"token operator\">+<\/span> mockGetRecord<span class=\"token punctuation\">.<\/span>fields<span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Industry<\/span><span class=\"token punctuation\">.<\/span>value\n        <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n        <span class=\"token keyword\">const<\/span> phoneElement <span class=\"token operator\">=<\/span> element<span class=\"token punctuation\">.<\/span>shadowRoot<span class=\"token punctuation\">.<\/span><span class=\"token function\">querySelector<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'p.accountPhone'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token function\">expect<\/span><span class=\"token punctuation\">(<\/span>phoneElement<span class=\"token punctuation\">.<\/span>textContent<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">toBe<\/span><span class=\"token punctuation\">(<\/span>\n          <span class=\"token string\">'Phone: '<\/span> <span class=\"token operator\">+<\/span> mockGetRecord<span class=\"token punctuation\">.<\/span>fields<span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Phone<\/span><span class=\"token punctuation\">.<\/span>value\n        <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n        <span class=\"token keyword\">const<\/span> ownerElement <span class=\"token operator\">=<\/span> element<span class=\"token punctuation\">.<\/span>shadowRoot<span class=\"token punctuation\">.<\/span><span class=\"token function\">querySelector<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'p.accountOwner'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token function\">expect<\/span><span class=\"token punctuation\">(<\/span>ownerElement<span class=\"token punctuation\">.<\/span>textContent<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">toBe<\/span><span class=\"token punctuation\">(<\/span>\n          <span class=\"token string\">'Owner: '<\/span> <span class=\"token operator\">+<\/span> mockGetRecord<span class=\"token punctuation\">.<\/span>fields<span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Owner<\/span><span class=\"token punctuation\">.<\/span>displayValue\n        <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n      <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/li>\n<li>\u4fdd\u5b58\u6587\u4ef6\u5e76\u8fd0\u884c\u6d4b\u8bd5\u3002<\/li>\n<li>\u7531\u4e8e\u6211\u4eec\u63a5\u4e0b\u6765\u521b\u5efa\u7684\u7f3a\u5c11\u7684\u6a21\u62df\u6570\u636e\u6587\u4ef6\uff0c\u6d4b\u8bd5\u5931\u8d25\u3002<\/li>\n<\/ol>\n<p>\u5728\u6b64\u4e4b\u524d\uff0c\u8ba9\u6211\u4eec\u770b\u4e00\u4e0b\u6d4b\u8bd5\u4ee3\u7801\u4ee5\u4e86\u89e3\u53d1\u751f\u4e86\u4ec0\u4e48\u3002<\/p>\n<ul>\n<li>\u7b2c3\u884c\u548c\u7b2c4\u884c\u6709\u65b0\u7684\u5bfc\u5165\uff1a<code>getRecord<\/code>\u548c<code>registerLdsTestWireAdapter<\/code>\u3002<br \/>\n<code>getRecord<\/code>\u6765\u81eaLDS API\u3002<code>registerLdsTestWireAdapter<\/code>\u662f\u7528\u4e8eLDS\u7684\u7279\u5b9aJest\u9002\u914d\u5668\u3002<\/li>\n<li>\u7b2c7\u884c\u518d\u6b21\u4ece\u76ee\u5f55\u4e2d\u7684<code>getRecord.json<\/code>\u6587\u4ef6\u4e2d\u6a21\u62df\u6570\u636e<code>data<\/code>\u3002<\/li>\n<li>\u7b2c10\u884c\u5411LDS\u7535\u7ebf\u9002\u914d\u5668\u6ce8\u518c\uff0c<code>getRecord<\/code>\u56e0\u6b64\u6211\u4eec\u51c6\u5907\u4f7f\u7528\u6a21\u62df\u6570\u636e\u3002\u6211\u4eec\u5728\u7b2c27\u884c\u6267\u884c\u7684\u64cd\u4f5c\u3002<\/li>\n<li>\u884c27\u4e2a\u4f7f\u7528EMIT\u65b9\u6cd5<code>getRecordAdapter<\/code>\u4e0e<code>mockGetRecord<\/code>\u4f5c\u4e3a\u53c2\u6570\u3002<\/li>\n<li>\u7b2c29\u884c\u5f00\u59cb<code>Promise<\/code>\u8fd4\u56de\uff0c\u6211\u4eec\u68c0\u67e5\u662f\u5426\u5df2\u4f7f\u7528\u6a21\u62df\u6570\u636e\u66f4\u65b0\u4e86\u5404\u79cd\u5143\u7d20\u3002<\/li>\n<\/ul>\n<p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u521b\u5efa\u6a21\u62df\u6570\u636e\u6587\u4ef6\u548c\u5176\u4f59\u6587\u4ef6\u4ee5\u901a\u8fc7\u6d4b\u8bd5\u3002\u5728\u521b\u5efa\u6bcf\u4e2a\u6587\u4ef6\u4e4b\u540e\uff0c\u6211\u4eec\u8fd0\u884c\u6d4b\u8bd5\u4ee5\u67e5\u770b\u6d4b\u8bd5\u9519\u8bef\u7684\u8fdb\u5c55\uff0c\u76f4\u5230\u5b83\u4eec\u901a\u8fc7\u4e3a\u6b62\u3002<\/p>\n<ol>\n<li>\u5728<code>data<\/code>\u76ee\u5f55\u4e2d\u521b\u5efa<code>__tests__<\/code>\u76ee\u5f55\u3002<\/li>\n<li>\u521b\u5efa\u540d\u4e3a\u7684\u6d4b\u8bd5\u6570\u636e\u6587\u4ef6<code>getRecord.json<\/code>\u3002<\/li>\n<li>\u6dfb\u52a0\u4ee5\u4e0b\u4ee3\u7801\uff1a\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token punctuation\">{<\/span>\n  <span class=\"token string\">\"apiName\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token string\">\"Account\"<\/span><span class=\"token punctuation\">,<\/span>\n  <span class=\"token string\">\"childRelationships\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\n  <span class=\"token string\">\"eTag\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token string\">\"35f2effe0a85913b45011ae4e7dae39f\"<\/span><span class=\"token punctuation\">,<\/span>\n  <span class=\"token string\">\"fields\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span>\n    <span class=\"token string\">\"Industry\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span>\n      <span class=\"token string\">\"displayValue\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token string\">\"Banking\"<\/span><span class=\"token punctuation\">,<\/span>\n      <span class=\"token string\">\"value\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token string\">\"Banking\"<\/span>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\n    <span class=\"token string\">\"Name\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span>\n      <span class=\"token string\">\"displayValue\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">,<\/span>\n      <span class=\"token string\">\"value\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token string\">\"Company ABC\"<\/span>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\n    <span class=\"token string\">\"Owner\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span>\n      <span class=\"token string\">\"displayValue\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token string\">\"Test User\"<\/span><span class=\"token punctuation\">,<\/span>\n      <span class=\"token string\">\"value\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span>\n        <span class=\"token string\">\"apiName\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token string\">\"User\"<\/span><span class=\"token punctuation\">,<\/span>\n        <span class=\"token string\">\"childRelationships\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\n        <span class=\"token string\">\"eTag\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token string\">\"f1a72efecde2ece9844980f21b4a0c25\"<\/span><span class=\"token punctuation\">,<\/span>\n        <span class=\"token string\">\"fields\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span>\n          <span class=\"token string\">\"Id\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span>\n            <span class=\"token string\">\"displayValue\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">,<\/span>\n            <span class=\"token string\">\"value\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token string\">\"005o0000000KEEUAA4\"<\/span>\n          <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\n          <span class=\"token string\">\"Name\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span>\n            <span class=\"token string\">\"displayValue\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">,<\/span>\n            <span class=\"token string\">\"value\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token string\">\"Test User\"<\/span>\n          <span class=\"token punctuation\">}<\/span>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\n        <span class=\"token string\">\"id\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token string\">\"005o0000000KEEUAA4\"<\/span><span class=\"token punctuation\">,<\/span>\n        <span class=\"token string\">\"lastModifiedById\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token string\">\"005o0000000KEEUAA4\"<\/span><span class=\"token punctuation\">,<\/span>\n        <span class=\"token string\">\"lastModifiedDate\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token string\">\"2019-08-22T23:45:53.000Z\"<\/span><span class=\"token punctuation\">,<\/span>\n        <span class=\"token string\">\"recordTypeInfo\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">,<\/span>\n        <span class=\"token string\">\"systemModstamp\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token string\">\"2019-08-23T06:00:11.000Z\"<\/span>\n      <span class=\"token punctuation\">}<\/span>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\n    <span class=\"token string\">\"OwnerId\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span>\n      <span class=\"token string\">\"displayValue\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">,<\/span>\n      <span class=\"token string\">\"value\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token string\">\"005o0000000KEEUAA4\"<\/span>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\n    <span class=\"token string\">\"Phone\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span>\n      <span class=\"token string\">\"displayValue\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">,<\/span>\n      <span class=\"token string\">\"value\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token string\">\"867-5309\"<\/span>\n    <span class=\"token punctuation\">}<\/span>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\n  <span class=\"token string\">\"id\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token string\">\"0011J00001A3VFoQAN\"<\/span><span class=\"token punctuation\">,<\/span>\n  <span class=\"token string\">\"lastModifiedById\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token string\">\"005o0000000KEEUAA4\"<\/span><span class=\"token punctuation\">,<\/span>\n  <span class=\"token string\">\"lastModifiedDate\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token string\">\"2020-02-28T05:46:17.000Z\"<\/span><span class=\"token punctuation\">,<\/span>\n  <span class=\"token string\">\"recordTypeInfo\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token keyword\">null<\/span><span class=\"token punctuation\">,<\/span>\n  <span class=\"token string\">\"systemModstamp\"<\/span> <span class=\"token operator\">:<\/span> <span class=\"token string\">\"2020-02-28T05:46:17.000Z\"<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/li>\n<li>\u4fdd\u5b58\u6587\u4ef6\u5e76\u8fd0\u884c\u6d4b\u8bd5\u3002<\/li>\n<li>\u6d4b\u8bd5\u5931\u8d25\u3002<\/li>\n<li>\u6253\u5f00<code>wireLDS.html<\/code>\u5e76\u5728\u6a21\u677f\u6807\u7b7e\u4e4b\u95f4\u8f93\u5165\u4ee5\u4e0b\u4ee3\u7801\uff1a\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\">  <span class=\"token operator\">&lt;<\/span>lightning<span class=\"token operator\">-<\/span>card title<span class=\"token operator\">=<\/span><span class=\"token string\">\"Wire Lightning Data Service\"<\/span> icon<span class=\"token operator\">-<\/span>name<span class=\"token operator\">=<\/span><span class=\"token string\">\"custom:custom108\"<\/span><span class=\"token operator\">&gt;<\/span>\n    <span class=\"token operator\">&lt;<\/span>template <span class=\"token keyword\">if<\/span><span class=\"token operator\">:<\/span><span class=\"token boolean\">true<\/span><span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>account<span class=\"token punctuation\">.<\/span>data<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&gt;<\/span>\n      <span class=\"token operator\">&lt;<\/span>p <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"accountName\"<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token class-name\">Account<\/span> <span class=\"token class-name\">Name<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span>name<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>p<span class=\"token operator\">&gt;<\/span>\n      <span class=\"token operator\">&lt;<\/span>p <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"accountIndustry\"<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token class-name\">Industry<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span>industry<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>p<span class=\"token operator\">&gt;<\/span>\n      <span class=\"token operator\">&lt;<\/span>p <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"accountPhone\"<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token class-name\">Phone<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span>phone<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>p<span class=\"token operator\">&gt;<\/span>\n      <span class=\"token operator\">&lt;<\/span>p <span class=\"token keyword\">class<\/span><span class=\"token operator\">=<\/span><span class=\"token string\">\"accountOwner\"<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token class-name\">Owner<\/span><span class=\"token operator\">:<\/span> <span class=\"token punctuation\">{<\/span>owner<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>p<span class=\"token operator\">&gt;<\/span>\n    <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span>\n    <span class=\"token operator\">&lt;<\/span>template <span class=\"token keyword\">if<\/span><span class=\"token operator\">:<\/span><span class=\"token boolean\">true<\/span><span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>account<span class=\"token punctuation\">.<\/span>error<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&gt;<\/span>\n      <span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span>p<span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token class-name\">No<\/span> account found<span class=\"token punctuation\">.<\/span>&lt;<span class=\"token operator\">\/<\/span>p<span class=\"token operator\">&gt;<\/span>\n    <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span>\n  <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>lightning<span class=\"token operator\">-<\/span>card<span class=\"token operator\">&gt;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/li>\n<li>\u4fdd\u5b58\u6587\u4ef6\u5e76\u8fd0\u884c\u6d4b\u8bd5\u3002<\/li>\n<li>\u6d4b\u8bd5\u518d\u6b21\u5931\u8d25\uff0c\u4f46\u662f\u6211\u4eec\u5feb\u5230\u4e86\u3002\u60a8\u53ea\u9700\u8981\u6dfb\u52a0JavaScript\u63a7\u5236\u5668\u5373\u53ef\u83b7\u53d6\u6570\u636e\u3002<\/li>\n<li>\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6253\u5f00<code>wireLDS.js<\/code>\u5e76\u8986\u76d6\u6240\u6709\u4ee3\u7801\uff1a\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> wire <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lwc'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> getRecord<span class=\"token punctuation\">,<\/span> getFieldValue <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lightning\/uiRecordApi'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> NAME_FIELD from <span class=\"token string\">'@salesforce\/schema\/Account.Name'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> OWNER_NAME_FIELD from <span class=\"token string\">'@salesforce\/schema\/Account.Owner.Name'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> PHONE_FIELD from <span class=\"token string\">'@salesforce\/schema\/Account.Phone'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> INDUSTRY_FIELD from <span class=\"token string\">'@salesforce\/schema\/Account.Industry'<\/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\">WireLDS<\/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> recordId<span class=\"token punctuation\">;<\/span>\n  \n  <span class=\"token annotation punctuation\">@wire<\/span><span class=\"token punctuation\">(<\/span>getRecord<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">{<\/span> recordId<span class=\"token operator\">:<\/span> <span class=\"token string\">'$recordId'<\/span><span class=\"token punctuation\">,<\/span> fields<span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span>NAME_FIELD<span class=\"token punctuation\">,<\/span> INDUSTRY_FIELD<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> optionalFields<span class=\"token operator\">:<\/span> <span class=\"token punctuation\">[<\/span>PHONE_FIELD<span class=\"token punctuation\">,<\/span> OWNER_NAME_FIELD<span class=\"token punctuation\">]<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span>\n  account<span class=\"token punctuation\">;<\/span>\n  \n  get <span class=\"token function\">name<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n    <span class=\"token keyword\">return<\/span> <span class=\"token function\">getFieldValue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>account<span class=\"token punctuation\">.<\/span>data<span class=\"token punctuation\">,<\/span> NAME_FIELD<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  <span class=\"token punctuation\">}<\/span>\n  \n  get <span class=\"token function\">phone<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n    <span class=\"token keyword\">return<\/span> <span class=\"token function\">getFieldValue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>account<span class=\"token punctuation\">.<\/span>data<span class=\"token punctuation\">,<\/span> PHONE_FIELD<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  <span class=\"token punctuation\">}<\/span>\n  \n  get <span class=\"token function\">industry<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span>\n    <span class=\"token keyword\">return<\/span> <span class=\"token function\">getFieldValue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>account<span class=\"token punctuation\">.<\/span>data<span class=\"token punctuation\">,<\/span> INDUSTRY_FIELD<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  <span class=\"token punctuation\">}<\/span>\n  \n  get <span class=\"token function\">owner<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n    <span class=\"token keyword\">return<\/span> <span class=\"token function\">getFieldValue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>account<span class=\"token punctuation\">.<\/span>data<span class=\"token punctuation\">,<\/span> OWNER_NAME_FIELD<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  <span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/li>\n<li>\u4fdd\u5b58\u6587\u4ef6\u5e76\u8fd0\u884c\u6d4b\u8bd5\u3002<\/li>\n<li>\u6d4b\u8bd5\u901a\u8fc7\u3002<\/li>\n<\/ol>\n<div class=\"box message info\">\n<div class=\"inner\">\n<div class=\"bd\">\n<div class=\"media\">\n<div class=\"mediaBd\">\n<h4 class=\"mbs\">\u6ce8\u610f<\/h4>\n<div class=\"message-media-content\">\n<p>Lightning Web\u7ec4\u4ef6\u4ece\u7528\u6237\u754c\u9762API\u652f\u6301\u7684\u6240\u6709\u81ea\u5b9a\u4e49\u548c\u6807\u51c6\u5bf9\u8c61\u8bbf\u95eeSalesforce\u6570\u636e\u548c\u5143\u6570\u636e\u3002\u4e0d\u652f\u6301\u5916\u90e8\u5bf9\u8c61\u3002<\/p>\n<p>\u901a\u8fc7\u4f7f\u7528REST\u5ba2\u6237\u7aef\u8bbf\u95ee\u7528\u6237\u754c\u9762API\u6355\u83b7\u6570\u636e\u5feb\u7167\u6765\u83b7\u53d6\u6d4b\u8bd5\u6570\u636e\u00a0\u3002\u8fd9\u79cd\u65b9\u6cd5\u6bd4\u624b\u5de5\u7f16\u5199JSON\u66f4\u51c6\u786e\u3002\u8fd9\u662fREST\u8c03\u7528\u7684\u793a\u4f8b\uff0c\u4ee5\u83b7\u53d6\u4e0a\u8ff0\u6570\u636e\uff08\u60a8\u9700\u8981\u81ea\u5df1\u7684\u5e10\u6237ID\uff09\uff1a<\/p>\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token operator\">\/<\/span>services<span class=\"token operator\">\/<\/span>data<span class=\"token operator\">\/<\/span>v47<span class=\"token punctuation\">.<\/span><span class=\"token number\">0<\/span><span class=\"token operator\">\/<\/span>ui<span class=\"token operator\">-<\/span>api<span class=\"token operator\">\/<\/span>records<span class=\"token operator\">\/<\/span><span class=\"token number\">0011<\/span>J00001A3VFo<span class=\"token operator\">?<\/span>fields<span class=\"token operator\">=<\/span><span class=\"token class-name\">Account<\/span><span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Name<\/span><span class=\"token punctuation\">,<\/span><span class=\"token class-name\">Account<\/span><span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Industry<\/span><span class=\"token operator\">&amp;<\/span>optionalFields<span class=\"token operator\">=<\/span><span class=\"token class-name\">Account<\/span><span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Phone<\/span><span class=\"token punctuation\">,<\/span><span class=\"token class-name\">Account<\/span><span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Owner<\/span><span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Name<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>\u4f46\u662f\uff0c\u5982\u679c\u83b7\u53d6\u6570\u636e\u65f6\u51fa\u73b0\u9519\u8bef\u600e\u4e48\u529e\uff1f\u60a8\u4e5f\u53ef\u4ee5\u5bf9\u6b64\u8fdb\u884c\u6d4b\u8bd5\u3002\u8ba9\u6211\u4eec\u5728\u6d4b\u8bd5\u6587\u4ef6\u4e2d\u6dfb\u52a0\u4e00\u4e2a\u65b0\u7684describe\u5757<code>wireLDS.test.js<\/code>\u3002<\/p>\n<ol>\n<li>\u5728describe&#8217;getRecord @wire data&#8217;\u5757\u4e4b\u540e\u7acb\u5373\u6dfb\u52a0\u4ee5\u4e0b\u4ee3\u7801\uff0c\u4f7f\u5176\u4f4d\u4e8edescribe&#8217;c-wire-lds&#8217;\u5757\u5185\u90e8\u3002\u60a8\u53ef\u4ee5\u5d4c\u5957\u63cf\u8ff0\u5757\u4ee5\u5e2e\u52a9\u6f84\u6e05\u6d4b\u8bd5\u3002\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\">  <span class=\"token function\">describe<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'getRecord @wire error'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n    <span class=\"token function\">it<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'shows error message'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n      <span class=\"token keyword\">const<\/span> element <span class=\"token operator\">=<\/span> <span class=\"token function\">createElement<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'c-wire-l-d-s'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">{<\/span>\n        is<span class=\"token operator\">:<\/span> <span class=\"token class-name\">WireLDS<\/span>\n      <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n      document<span class=\"token punctuation\">.<\/span>body<span class=\"token punctuation\">.<\/span><span class=\"token function\">appendChild<\/span><span class=\"token punctuation\">(<\/span>element<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n      <span class=\"token comment\">\/\/ Emit error from @wire<\/span>\n      getRecordAdapter<span class=\"token punctuation\">.<\/span><span class=\"token function\">error<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n      <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">Promise<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">resolve<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">then<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n        <span class=\"token keyword\">const<\/span> errorElement <span class=\"token operator\">=<\/span> element<span class=\"token punctuation\">.<\/span>shadowRoot<span class=\"token punctuation\">.<\/span><span class=\"token function\">querySelector<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'p'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token function\">expect<\/span><span class=\"token punctuation\">(<\/span>errorElement<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>not<span class=\"token punctuation\">.<\/span><span class=\"token function\">toBeNull<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token function\">expect<\/span><span class=\"token punctuation\">(<\/span>errorElement<span class=\"token punctuation\">.<\/span>textContent<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">toBe<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'No account found.'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n      <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/li>\n<li>\u4fdd\u5b58\u6587\u4ef6\u5e76\u8fd0\u884c\u6d4b\u8bd5\u3002<\/li>\n<li>\u6d4b\u8bd5\u901a\u8fc7\uff0c\u56e0\u4e3a\u60a8\u6b63\u5728\u4f7f\u7528\u4e0a\u7684<code>error()<\/code>\u65b9\u6cd5<code>getRecordAdapter<\/code>\u3002\u8fd9\u5c06\u5bfc\u81f4\u6a21\u62df\u6570\u636e\u51fa\u9519\uff0c\u56e0\u6b64<code>account.error<\/code>\u5c06\u4e3atrue\u3002<\/li>\n<\/ol>\n<h2 id=\"using-the-apex-wire-adapter\">\u4f7f\u7528Apex\u7ebf\u9002\u914d\u5668<\/h2>\n<p>\u63a5\u4e0b\u6765\uff0c\u8ba9\u6211\u4eec\u6df1\u5165\u4e86\u89e3Apex\uff0c\u770b\u770b\u5982\u4f55\u4f7f\u7528<code>@wire<\/code>\u5b83\u8fdb\u884c\u6d4b\u8bd5\u3002<\/p>\n<p>LWC\u6b63\u5728\u5bfc\u5165\u7684Apex\u7c7b\u88ab\u8ba4\u4e3a\u662f\u9700\u8981\u6a21\u62df\u7684\u5916\u90e8\u8fde\u63a5\u3002\u8fd9\u610f\u5473\u7740\u6211\u4eec\u65e0\u9700\u521b\u5efaApex\u7c7b\u5373\u53ef\u8fdb\u884c\u6d4b\u8bd5\u3002\u6211\u4eec\u9700\u8981\u505a\u7684\u53ea\u662f\u6a21\u62df\u6765\u81eaApex\u8c03\u7528\u7684\u9884\u671f\u54cd\u5e94\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u5e0c\u671b\u663e\u793a\u4eceApex\u7c7b\u8fd4\u56de\u7684\u5e10\u6237\u3002\u6211\u4eec\u5c06\u521b\u5efa\u6d4b\u8bd5\uff0c\u8fd9\u4e9b\u6d4b\u8bd5\u671f\u671b\u5728\u8fd4\u56de\u5e10\u6237\u65f6\u663e\u793a\u5e10\u6237\uff0c\u5e76\u5728\u6ca1\u6709\u8fd4\u56de\u6d88\u606f\u7684\u60c5\u51b5\u4e0b\u663e\u793a\u6d88\u606f\u3002<\/p>\n<p>\u8ba9\u6211\u4eec\u6784\u5efa\u4f7f\u7528\u5b83\u7684LWC\u3002<\/p>\n<ol>\n<li>\u5728Visual Studio Code\u4e2d\u521b\u5efa\u4e00\u4e2a\u65b0\u7684Lightning Web\u7ec4\u4ef6\u3002<\/li>\n<li>\u5c06\u540d\u79f0\u8bbe\u7f6e\u4e3a<code>wireApex<\/code>\u3002<\/li>\n<li>\u521b\u5efa<code>__tests__<\/code>\u76ee\u5f55\u3002<\/li>\n<li>\u6dfb\u52a0\u4e00\u4e2a\u540d\u4e3a\u7684\u6d4b\u8bd5\u6587\u4ef6<code>wireApex.test.js<\/code>\u3002<\/li>\n<li>\u5c06\u4ee5\u4e0b\u4ee3\u7801\u6dfb\u52a0\u5230\u6d4b\u8bd5\u6587\u4ef6\uff1a\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> createElement <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lwc'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> <span class=\"token class-name\">WireApex<\/span> from <span class=\"token string\">'c\/wireApex'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">{<\/span> registerApexTestWireAdapter <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'@salesforce\/sfdx-lwc-jest'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">getAccountList<\/span> from <span class=\"token string\">'@salesforce\/apex\/AccountController.getAccountList'<\/span><span class=\"token punctuation\">;<\/span>\n  \n<span class=\"token comment\">\/\/ Realistic data with a list of contacts<\/span>\n<span class=\"token keyword\">const<\/span> mockGetAccountList <span class=\"token operator\">=<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'.\/data\/getAccountList.json'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n<span class=\"token comment\">\/\/ An empty list of records to verify the component does something reasonable<\/span>\n<span class=\"token comment\">\/\/ when there is no data to display<\/span>\n<span class=\"token keyword\">const<\/span> mockGetAccountListNoRecords <span class=\"token operator\">=<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'.\/data\/getAccountListNoRecords.json'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n<span class=\"token comment\">\/\/ Register as Apex wire adapter. Some tests verify that provisioned values trigger desired behavior.<\/span>\n<span class=\"token keyword\">const<\/span> getAccountListAdapter <span class=\"token operator\">=<\/span> <span class=\"token function\">registerApexTestWireAdapter<\/span><span class=\"token punctuation\">(<\/span>getAccountList<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n<span class=\"token function\">describe<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'c-wire-apex'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n  <span class=\"token function\">afterEach<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>document<span class=\"token punctuation\">.<\/span>body<span class=\"token punctuation\">.<\/span>firstChild<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n      document<span class=\"token punctuation\">.<\/span>body<span class=\"token punctuation\">.<\/span><span class=\"token function\">removeChild<\/span><span class=\"token punctuation\">(<\/span>document<span class=\"token punctuation\">.<\/span>body<span class=\"token punctuation\">.<\/span>firstChild<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n    <span class=\"token comment\">\/\/ Prevent data saved on mocks from leaking between tests<\/span>\n    jest<span class=\"token punctuation\">.<\/span><span class=\"token function\">clearAllMocks<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n  <span class=\"token function\">describe<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'getAccountList @wire data'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n    <span class=\"token function\">it<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'renders six records'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n      <span class=\"token keyword\">const<\/span> element <span class=\"token operator\">=<\/span> <span class=\"token function\">createElement<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'c-wire-apex'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">{<\/span>\n        is<span class=\"token operator\">:<\/span> <span class=\"token class-name\">WireApex<\/span>\n      <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n      document<span class=\"token punctuation\">.<\/span>body<span class=\"token punctuation\">.<\/span><span class=\"token function\">appendChild<\/span><span class=\"token punctuation\">(<\/span>element<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n      <span class=\"token comment\">\/\/ Emit data from @wire<\/span>\n      getAccountListAdapter<span class=\"token punctuation\">.<\/span><span class=\"token function\">emit<\/span><span class=\"token punctuation\">(<\/span>mockGetAccountList<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n      <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">Promise<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">resolve<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">then<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n        <span class=\"token comment\">\/\/ Select elements for validation<\/span>\n        <span class=\"token keyword\">const<\/span> accountElements <span class=\"token operator\">=<\/span> element<span class=\"token punctuation\">.<\/span>shadowRoot<span class=\"token punctuation\">.<\/span><span class=\"token function\">querySelectorAll<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'p'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token function\">expect<\/span><span class=\"token punctuation\">(<\/span>accountElements<span class=\"token punctuation\">.<\/span>length<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">toBe<\/span><span class=\"token punctuation\">(<\/span>mockGetAccountList<span class=\"token punctuation\">.<\/span>length<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token function\">expect<\/span><span class=\"token punctuation\">(<\/span>accountElements<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span>textContent<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">toBe<\/span><span class=\"token punctuation\">(<\/span>mockGetAccountList<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Name<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n      <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n    <span class=\"token function\">it<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'renders no items when no records are returned'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n      <span class=\"token keyword\">const<\/span> element <span class=\"token operator\">=<\/span> <span class=\"token function\">createElement<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'c-wire-apex'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">{<\/span>\n        is<span class=\"token operator\">:<\/span> <span class=\"token class-name\">WireApex<\/span>\n      <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n      document<span class=\"token punctuation\">.<\/span>body<span class=\"token punctuation\">.<\/span><span class=\"token function\">appendChild<\/span><span class=\"token punctuation\">(<\/span>element<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n      <span class=\"token comment\">\/\/ Emit data from @wire<\/span>\n      getAccountListAdapter<span class=\"token punctuation\">.<\/span><span class=\"token function\">emit<\/span><span class=\"token punctuation\">(<\/span>mockGetAccountListNoRecords<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n      <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">Promise<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">resolve<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">then<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n        <span class=\"token comment\">\/\/ Select elements for validation<\/span>\n        <span class=\"token keyword\">const<\/span> accountElements <span class=\"token operator\">=<\/span> element<span class=\"token punctuation\">.<\/span>shadowRoot<span class=\"token punctuation\">.<\/span><span class=\"token function\">querySelectorAll<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'p'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token function\">expect<\/span><span class=\"token punctuation\">(<\/span>accountElements<span class=\"token punctuation\">.<\/span>length<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">toBe<\/span><span class=\"token punctuation\">(<\/span>\n          mockGetAccountListNoRecords<span class=\"token punctuation\">.<\/span>length\n        <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n      <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n  <span class=\"token function\">describe<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'getAccountList @wire error'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n    <span class=\"token function\">it<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'shows error panel element'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n      <span class=\"token keyword\">const<\/span> element <span class=\"token operator\">=<\/span> <span class=\"token function\">createElement<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'c-wire-apex'<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">{<\/span>\n        is<span class=\"token operator\">:<\/span> <span class=\"token class-name\">WireApex<\/span>\n      <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n      document<span class=\"token punctuation\">.<\/span>body<span class=\"token punctuation\">.<\/span><span class=\"token function\">appendChild<\/span><span class=\"token punctuation\">(<\/span>element<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n      <span class=\"token comment\">\/\/ Emit error from @wire<\/span>\n      getAccountListAdapter<span class=\"token punctuation\">.<\/span><span class=\"token function\">error<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  \n      <span class=\"token keyword\">return<\/span> <span class=\"token class-name\">Promise<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">resolve<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">then<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=<\/span><span class=\"token operator\">&gt;<\/span> <span class=\"token punctuation\">{<\/span>\n        <span class=\"token keyword\">const<\/span> errorElement <span class=\"token operator\">=<\/span> element<span class=\"token punctuation\">.<\/span>shadowRoot<span class=\"token punctuation\">.<\/span><span class=\"token function\">querySelector<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'p'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token function\">expect<\/span><span class=\"token punctuation\">(<\/span>errorElement<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>not<span class=\"token punctuation\">.<\/span><span class=\"token function\">toBeNull<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token function\">expect<\/span><span class=\"token punctuation\">(<\/span>errorElement<span class=\"token punctuation\">.<\/span>textContent<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">toBe<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">'No accounts found.'<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n      <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/li>\n<li>\u4fdd\u5b58\u6587\u4ef6\u5e76\u8fd0\u884c\u6d4b\u8bd5\u3002<\/li>\n<li>\u60a8\u4f1a\u56e0\u7f3a\u5c11\u7684\u6a21\u62df\u6570\u636e\u6587\u4ef6\u800c\u51fa\u9519\u3002<\/li>\n<\/ol>\n<p>\u5927\u591a\u6570\u4ee3\u7801\u662f\u719f\u6089\u7684\u3002\u8bf7\u6ce8\u610f\uff0c\u6211\u4eec\u4f7f\u7528<code>registerApexTestWireAdapter<\/code>\u4ee3\u66ffApex\u4e0eApex\u4e00\u8d77\u4f7f\u7528<code>registerLdsTestWireAdapter<\/code>\u3002<code>jest.clearAllMocks()<\/code>\u6e05\u7406\u4ee3\u7801\u4e2d\u6709\u4e00\u4e2a\u65b0\u9879\u76ee\uff0c\u7528\u4e8e\u91cd\u7f6e\u6d4b\u8bd5\u4e4b\u95f4\u7684\u6a21\u62df\u3002\u8fd9\u662f\u5fc5\u9700\u7684\uff0c\u56e0\u4e3a\u6211\u4eec\u6709\u4e24\u4e2a\u6a21\u62df\u6587\u4ef6\u7528\u4e8e\u4e24\u4e2a\u4e0d\u540c\u7684\u6d4b\u8bd5\u3002\u7b2c\u4e00\u4e2a\u6d4b\u8bd5\u6b63\u5728\u5bfb\u627eApex\u8c03\u7528\u4ee5\u63d0\u4f9b\u516d\u4e2a\u5e10\u6237\u3002\u7b2c\u4e8c\u9879\u6d4b\u8bd5\u662f\u65ad\u8a00\u5982\u679c\u627e\u4e0d\u5230\u5e10\u6237\uff0c\u5c06\u4f1a\u53d1\u751f\u4ec0\u4e48\u60c5\u51b5\u3002\u6700\u540e\u662f\u6d4b\u8bd5\uff0c\u4ee5\u65ad\u8a00\u5982\u679cApex\u51fa\u9519\u4f1a\u53d1\u751f\u4ec0\u4e48\u60c5\u51b5\u3002<\/p>\n<p>\u8ba9\u6211\u4eec\u6dfb\u52a0\u6a21\u62df\u6570\u636e\u6587\u4ef6\u548c\u5176\u4f59\u4ee3\u7801\u3002<\/p>\n<ol>\n<li>\u5728<code>data<\/code>\u76ee\u5f55\u4e2d\u521b\u5efa<code>__tests__<\/code>\u76ee\u5f55\u3002<\/li>\n<li>\u5728<code>data<\/code>\u540d\u4e3a<code>getAccountList.json<\/code>\u548c\u7684\u65b0\u76ee\u5f55\u4e2d\u521b\u5efa\u4e24\u4e2a\u6587\u4ef6<code>getAccountListNoRecords.json<\/code>\u3002<\/li>\n<li>\u5728\u4e0b\u9762\u8f93\u5165\u4ee3\u7801<code>getAccountList.json<\/code>\uff1a\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token punctuation\">[<\/span>\n  <span class=\"token punctuation\">{<\/span>\n    <span class=\"token string\">\"Id\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"001o0000005w4fT\"<\/span><span class=\"token punctuation\">,<\/span>\n    <span class=\"token string\">\"Name\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"Edge Communications\"<\/span>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\n  <span class=\"token punctuation\">{<\/span>\n    <span class=\"token string\">\"Id\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"001o0000005w4fa\"<\/span><span class=\"token punctuation\">,<\/span>\n    <span class=\"token string\">\"Name\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"United Oil &amp; Gas Corporation\"<\/span>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\n  <span class=\"token punctuation\">{<\/span>\n    <span class=\"token string\">\"Id\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"001o0000005w4fY\"<\/span><span class=\"token punctuation\">,<\/span>\n    <span class=\"token string\">\"Name\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"Express Logistics and Transport\"<\/span>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\n  <span class=\"token punctuation\">{<\/span>\n    <span class=\"token string\">\"Id\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"001o0000005w4fV\"<\/span><span class=\"token punctuation\">,<\/span>\n    <span class=\"token string\">\"Name\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"Pyramid Construction Inc.\"<\/span>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\n  <span class=\"token punctuation\">{<\/span>\n    <span class=\"token string\">\"Id\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"001o0000005w4fX\"<\/span><span class=\"token punctuation\">,<\/span>\n    <span class=\"token string\">\"Name\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"Grand Hotels &amp; Resorts Ltd\"<\/span>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span>\n  <span class=\"token punctuation\">{<\/span>\n    <span class=\"token string\">\"Id\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"001o000000k2NMs\"<\/span><span class=\"token punctuation\">,<\/span>\n    <span class=\"token string\">\"Name\"<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">\"ABC Genius Tech Consulting\"<\/span>\n  <span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">]<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/li>\n<li>\u8be5<code>getAccountListNoRecords.json<\/code>\u6587\u4ef6\u5c06\u586b\u5145\u4e00\u4e2a\u7a7a\u767d\u7684JSON\u5bf9\u8c61\uff1a\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\"><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/li>\n<li>\u73b0\u5728\uff0c\u5728<code>template<\/code>\u6807\u8bb0\u4e4b\u95f4\u8f93\u5165\u6b64\u4ee3\u7801<code>wireApex.html<\/code>\uff1a\n<div class=\"code-toolbar\">\n<pre class=\"line-numbers language-java\"><code class=\"language-java\">  <span class=\"token operator\">&lt;<\/span>lightning<span class=\"token operator\">-<\/span>card title<span class=\"token operator\">=<\/span><span class=\"token string\">\"Wire Apex\"<\/span> icon<span class=\"token operator\">-<\/span>name<span class=\"token operator\">=<\/span><span class=\"token string\">\"custom:custom107\"<\/span><span class=\"token operator\">&gt;<\/span>\n    <span class=\"token operator\">&lt;<\/span>template <span class=\"token keyword\">if<\/span><span class=\"token operator\">:<\/span><span class=\"token boolean\">true<\/span><span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>accounts<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&gt;<\/span>\n      <span class=\"token operator\">&lt;<\/span>template <span class=\"token keyword\">for<\/span><span class=\"token operator\">:<\/span>each<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>accounts<span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">for<\/span><span class=\"token operator\">:<\/span>item<span class=\"token operator\">=<\/span><span class=\"token string\">\"account\"<\/span><span class=\"token operator\">&gt;<\/span>\n        <span class=\"token operator\">&lt;<\/span>p key<span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>account<span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Id<\/span><span class=\"token punctuation\">}<\/span><span class=\"token operator\">&gt;<\/span><span class=\"token punctuation\">{<\/span>account<span class=\"token punctuation\">.<\/span><span class=\"token class-name\">Name<\/span><span class=\"token punctuation\">}<\/span><span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>p<span class=\"token operator\">&gt;<\/span>\n      <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span>\n    <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span>\n    <span class=\"token operator\">&lt;<\/span>template <span class=\"token keyword\">if<\/span><span class=\"token operator\">:<\/span><span class=\"token boolean\">true<\/span><span class=\"token operator\">=<\/span><span class=\"token punctuation\">{<\/span>error<span class=\"token punctuation\">}<\/span><span class=\"token operator\">&gt;<\/span>\n      <span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span>p<span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token class-name\">No<\/span> accounts found<span class=\"token punctuation\">.<\/span>&lt;<span class=\"token operator\">\/<\/span>p<span class=\"token operator\">&gt;<\/span>\n    <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>template<span class=\"token operator\">&gt;<\/span>\n  <span class=\"token operator\">&lt;<\/span><span class=\"token operator\">\/<\/span>lightning<span class=\"token operator\">-<\/span>card<span class=\"token operator\">&gt;<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<\/li>\n<li>\u901a\u8fc7\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u66ff\u6362\u5b8c\u6210<code>wireApex.js<\/code>\uff1a\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> wire <span class=\"token punctuation\">}<\/span> from <span class=\"token string\">'lwc'<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">getAccountList<\/span> from <span class=\"token string\">'@salesforce\/apex\/AccountController.getAccountList'<\/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\">WireApex<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">LightningElement<\/span> <span class=\"token punctuation\">{<\/span>\n  accounts<span class=\"token punctuation\">;<\/span>\n  error<span class=\"token punctuation\">;<\/span>\n  \n  <span class=\"token annotation punctuation\">@wire<\/span><span class=\"token punctuation\">(<\/span>getAccountList<span class=\"token punctuation\">)<\/span>\n  <span class=\"token function\">wiredAccounts<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span> error<span class=\"token punctuation\">,<\/span> data <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n    <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>data<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n      <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>accounts <span class=\"token operator\">=<\/span> data<span class=\"token punctuation\">;<\/span>\n      <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>error <span class=\"token operator\">=<\/span> undefined<span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\n      <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>error <span class=\"token operator\">=<\/span> error<span class=\"token punctuation\">;<\/span>\n      <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>accounts <span class=\"token operator\">=<\/span> undefined<span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n  <span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<div class=\"toolbar\">\n<div class=\"toolbar-item\"><\/div>\n<\/div>\n<\/div>\n<p>\u8bf7\u6ce8\u610f\uff0c\u6211\u4eec\u4ec5\u4ece\u00a0Apex\u7c7b\u83b7\u53d6\u00a0<code>getAccountList<\/code>\u00a0\u65b9\u6cd5\u00a0<code>AccountController<\/code>\u3002\u8bf7\u8bb0\u4f4f\uff0c\u8be5\u65b9\u6cd5\u5fc5\u987b\u5e26\u6709\u6ce8\u91ca\uff0c\u00a0<code>@AuraEnabled(cacheable=true)<\/code>\u00a0\u4ee5\u4f7f\u5176\u4e0eLWC\u4e00\u8d77\u4f7f\u7528\u3002\u8be5<code>@wire<\/code>\u7528\u5b83\u6765\u7528\u4e00\u4e2a\u51fd\u6570\u00a0<code>error<\/code>\u00a0\u6216\u00a0<code>data<\/code>\u00a0\u8fd4\u56de\u3002<\/li>\n<li>\u4fdd\u5b58\u6240\u6709\u6587\u4ef6\u5e76\u8fd0\u884c\u6d4b\u8bd5\u3002<\/li>\n<li>\u6d4b\u8bd5\u901a\u8fc7\u3002<\/li>\n<\/ol>\n<p>\u5728\u4e0b\u4e00\u4e2a\u5355\u5143\u4e2d\uff0c\u60a8\u5c06\u5904\u7406\u5176\u4ed6\u7ec4\u4ef6\u7684\u6a21\u62df\uff0c\u5e76\u5b8c\u6210\u4f7f\u7528Jest\u6d4b\u8bd5Lightning Web\u7ec4\u4ef6\u7684\u65b9\u6cd5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b66\u4e60\u76ee\u6807 \u5b8c\u6210\u672c\u5355\u5143\u540e\uff0c\u60a8\u5c06\u80fd\u591f\uff1a \u5217\u51fa\u7528\u4e8e\u6709\u7ebf\u670d\u52a1\u7684\u4e09\u4e2a\u4e3b\u8981\u9002\u914d\u5668\u3002 \u89e3\u91ca\u6709\u7ebf\u670d\u52a1\u7684\u6a21\u62df\u6570\u636e\u3002 \u4e86\u89e3\u53cd\u5e94\u53d8\u91cf &hellip; <a href=\"http:\/\/www.ponybai.com\/?p=2397\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u95ea\u7535Web\u7ec4\u4ef6\u6d4b\u8bd5 &#8211; \u7f16\u5199\u4e00\u4e2a\u9488\u5bf9wire\u7684Jest\u6d4b\u8bd5<\/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-2397","post","type-post","status-publish","format-standard","hentry","category-web"],"yoast_head":"<!-- This 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