{"id":38962,"date":"2024-01-02T21:47:35","date_gmt":"2024-01-05T05:20:26","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/angular4%ef%bc%88%e5%8c%85%e6%8b%acangular2%ef%bc%89%e7%9a%84%e5%8d%95%e5%85%83%e6%b5%8b%e8%af%95%e3%80%90angular%e5%8d%95%e5%85%83%e6%b5%8b%e8%af%95%e5%9f%ba%e7%a1%80%e4%b8%8e%e7%bb%84%e4%bb%b6\/"},"modified":"2024-05-04T16:31:24","modified_gmt":"2024-05-04T08:31:24","slug":"angular4%ef%bc%88%e5%8c%85%e6%8b%acangular2%ef%bc%89%e7%9a%84%e5%8d%95%e5%85%83%e6%b5%8b%e8%af%95%e3%80%90angular%e5%8d%95%e5%85%83%e6%b5%8b%e8%af%95%e5%9f%ba%e7%a1%80%e4%b8%8e%e7%bb%84%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/angular4%ef%bc%88%e5%8c%85%e6%8b%acangular2%ef%bc%89%e7%9a%84%e5%8d%95%e5%85%83%e6%b5%8b%e8%af%95%e3%80%90angular%e5%8d%95%e5%85%83%e6%b5%8b%e8%af%95%e5%9f%ba%e7%a1%80%e4%b8%8e%e7%bb%84%e4%bb%b6\/","title":{"rendered":"Angular4\uff08\u5305\u62ecAngular2\uff09\u7684\u5355\u5143\u6d4b\u8bd5\u3010Angular\u5355\u5143\u6d4b\u8bd5\u57fa\u7840\u4e0e\u7ec4\u4ef6\u7b80\u6613\u6d4b\u8bd5\u90e8\u5206\u3011"},"content":{"rendered":"

Angular4\uff08Angular2\u301c\uff09\u7684\u5355\u5143\u6d4b\u8bd5\u3010Angular\u5355\u5143\u6d4b\u8bd5\u57fa\u7840\u548c\u7ec4\u4ef6\u7b80\u5355\u6d4b\u8bd5\u7f16\u5199\u3011<\/h1>\n

\u7531\u4e8e\u6211\u6b63\u5728\u5b66\u4e60Angular\u7684\u5355\u5143\u6d4b\u8bd5\uff0c\u6240\u4ee5\u6211\u6253\u7b97\u5206\u51e0\u6b21\u5199\u6210\u6587\u7ae0\u3002
\n\u672c\u6b21\u6587\u7ae0\u4e3b\u8981\u53c2\u8003\u4e86\u4ee5\u4e0b\u5b98\u65b9\u6587\u6863\u7684\u56db\u4e2a\u90e8\u5206\uff1a
\n\u4ecb\u7ecdAngular\u7684\u6d4b\u8bd5
\n\u7b2c\u4e00\u4e2akarma\u6d4b\u8bd5
\n\u6d4b\u8bd5\u4e00\u4e2a\u7ec4\u4ef6
\n\u6d4b\u8bd5\u4e00\u4e2a\u5e26\u6709\u5916\u90e8\u6a21\u677f\u7684\u7ec4\u4ef6<\/p>\n

\u672c\u6b21\u6587\u7ae0\u7684\u4e3b\u9898\u662f\u5173\u4e8eAngular\u6d4b\u8bd5\u7684\u5927\u81f4\u6d41\u7a0b\u548c\u7b80\u5355\u7684\u7ec4\u4ef6\u6d4b\u8bd5\u3002<\/p>\n

\u4f7f\u7528\u6d4b\u8bd5\u5de5\u5177<\/h2>\n

\u5728Angular\u7684\u6d4b\u8bd5\u4e2d\uff0c\u9700\u8981\u4f7f\u7528\u4e00\u4e9bJavaScript\u9886\u57df\u7684\u6d4b\u8bd5\u5de5\u5177\u3002\u5982\u679c\u4e0d\u4e86\u89e3\u8fd9\u4e9b\u5de5\u5177\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u632b\u8d25\uff0c\u56e0\u6b64\uff0c\u5728\u8fdb\u884cAngular\u81ea\u8eab\u7684\u6d4b\u8bd5\u4e4b\u524d\uff0c\u9700\u8981\u5148\u5b66\u4e60\u8fd9\u4e9b\u5de5\u5177\u3002\u4ee5\u4e0b\u5185\u5bb9\u53ef\u4ee5\u4f5c\u4e3a\u53c2\u8003\uff0c\u4fbf\u4e8e\u7406\u89e3\u3002<\/p>\n

\u8309\u8389\u82b1<\/h3>\n

JavaScript\u7684\u6d4b\u8bd5\u6846\u67b6<\/p>\n

\u8309\u8389\u82b1\u516c\u5f0f
\nhttps:\/\/jasmine.github.io\/2.0\/introduction.html
\nJasmine\u7684\u6613\u61c2\u6587\u7ae0
\nJasmine\u4f7f\u7528\u65b9\u6cd5\u5907\u5fd8\u5f55 – Qiita
\nJasmine\u89c4\u8303\u8bb0\u5fc6 – Qiita<\/p>\n

\u56e0\u679c\u62a5\u5e94<\/h3>\n

\u7528\u4e8e\u5728\u6d4f\u89c8\u5668\u4e2d\u8fd0\u884c\u5355\u5143\u6d4b\u8bd5\u7684\u6d4b\u8bd5\u8fd0\u884c\u5668<\/p>\n

\u9010\u6b65\u5f00\u59cb\u5b66\u4e60Karma\u7684\u6613\u61c2\u6587\u7ae0- \u6398\u91d1
\nKarma\u5b98\u65b9\u7f51\u7ad9
\nKarma- \u4ee4\u4eba\u60ca\u53f9\u7684JavaScript\u6d4b\u8bd5\u8fd0\u884c\u5668<\/p>\n

\u6d4b\u8bd5\u7ec4\u4ef6<\/h2>\n
import<\/span> {<\/span>Component<\/span>}<\/span> from<\/span> '<\/span>@angular\/core<\/span>'<\/span>;<\/span>\r\n\r\n@<\/span>Component<\/span>({<\/span>\r\n  selector<\/span>:<\/span> '<\/span>app-root<\/span>'<\/span>,<\/span>\r\n  templateUrl<\/span>:<\/span> '<\/span>.\/app.component.html<\/span>'<\/span>,<\/span>\r\n  styleUrls<\/span>:<\/span> [<\/span>'<\/span>.\/app.component.css<\/span>'<\/span>]<\/span>\r\n})<\/span>\r\nexport<\/span> class<\/span> AppComponent<\/span> {<\/span>\r\n  title<\/span> =<\/span> '<\/span>\u30c6\u30b9\u30c8\u3060\u3088<\/span>'<\/span>;<\/span>\r\n\r\n  \/**\r\n   * h1\u306e\u6587\u7ae0\u3092\u5909\u66f4\u3059\u308b\r\n   *\/<\/span>\r\n  changeH1Element<\/span>()<\/span> {<\/span>\r\n    this<\/span>.<\/span>title<\/span> =<\/span> '<\/span>\u30af\u30ea\u30c3\u30af\u3055\u308c\u305f\u305c!<\/span>'<\/span>;<\/span>\r\n  }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
<h1><\/span>\r\n  {{title}}\r\n<\/h1><\/span>\r\n\r\n<p<\/span> class=<\/span>\"button\"<\/span> (click)=<\/span>\"changeH1Element()\"<\/span>><\/span>\u3053\u3053\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066<\/p><\/span>\r\n<\/code><\/pre>\n
\u5982\u679c\u6807\u9898\u4e0a\u6709\u4e00\u4e2a\u201c\u70b9\u51fb\u8fd9\u91cc\u201d\u7684\u5730\u65b9\uff0c\u5f53\u4f60\u70b9\u51fb\u5b83\u65f6\uff0c\u6807\u9898\u4f1a\u6539\u53d8\u3002
\n\u6b64\u5916\uff0c\u672c\u6b21\u7684\u76ee\u7684\u662f\u4e3a\u4e86\u5b66\u4e60 Angular \u7684\u5355\u5143\u6d4b\u8bd5\uff0c\u4e0d\u4f1a\u8fdb\u884c\u4efb\u4f55 CSS \u6216\u5176\u4ed6\u7684\u88c5\u9970\u3002<\/p>\n
\u8003\u8bd5\u73ed\u7ea7<\/h2>\n
import<\/span> {<\/span>ComponentFixture<\/span>,<\/span> TestBed<\/span>,<\/span> async<\/span>,<\/span> ComponentFixtureAutoDetect<\/span>,}<\/span> from<\/span> '<\/span>@angular\/core\/testing<\/span>'<\/span>;<\/span>\r\nimport<\/span> {<\/span>By<\/span>}<\/span>              from<\/span> '<\/span>@angular\/platform-browser<\/span>'<\/span>;<\/span>\r\nimport<\/span> {<\/span>DebugElement<\/span>}<\/span>    from<\/span> '<\/span>@angular\/core<\/span>'<\/span>;<\/span>\r\nimport<\/span> {<\/span>AppComponent<\/span>}<\/span> from<\/span> '<\/span>.\/app.component<\/span>'<\/span>;<\/span>\r\n\r\n\r\n\/\/ describe\u3067\u30c6\u30b9\u30c8Suite\u3092\u4f5c\u6210<\/span>\r\ndescribe<\/span>(<\/span>'<\/span>AppComponent\u306e\u30c6\u30b9\u30c8<\/span>'<\/span>,<\/span> ()<\/span> =><\/span> {<\/span>\r\n  \/\/ \u30c6\u30b9\u30c8\u306e\u4e2d\u306eAppComponent<\/span>\r\n  let<\/span> comp<\/span>:<\/span> AppComponent<\/span>;<\/span>\r\n  \/\/ ComponentFixture\u306f\u3001 component\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u305d\u306e\u3082\u306e\u3068component\u306eDOM element\u306e\u30cf\u30f3\u30c9\u30eb\u3067\u3042\u308bDebugElement\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u63d0\u4f9b\u3059\u308b\u3002<\/span>\r\n  let<\/span> fixture<\/span>:<\/span> ComponentFixture<\/span><<\/span>AppComponent<\/span>><\/span>;<\/span>\r\n  \/\/ Component\u306eDOM element\u306ehandle<\/span>\r\n  let<\/span> de<\/span>:<\/span> DebugElement<\/span>;<\/span>\r\n  let<\/span> el<\/span>:<\/span> HTMLElement<\/span>;<\/span>\r\n\r\n\r\n  \/\/ \u5404Spec(\u500b\u3005\u306e\u30c6\u30b9\u30c8)\u304c\u958b\u59cb\u3055\u308c\u308b\u524d\u306b\u884c\u3046\u51e6\u7406\u3092\u8a2d\u5b9a\u3059\u308b\u3002<\/span>\r\n  \/\/ \u975e\u540c\u671f\u51e6\u7406<\/span>\r\n  \/\/ Component\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3059\u308b\u524d\u306b\u3001Angular template compiler\u304c\u5916\u90e8\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u307f\u8fbc\u3080<\/span>\r\n  beforeEach<\/span>(<\/span>async<\/span>(()<\/span> =><\/span> {<\/span>\r\n    \/\/ \u30c6\u30b9\u30c8\u3057\u305f\u3044\u30af\u30e9\u30b9\u306e\u305f\u3081\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u74b0\u5883\u3092configureTestingModule\u30e1\u30bd\u30c3\u30c9\u3067\u8a2d\u5b9a\u3059\u308b\u3002<\/span>\r\n    \/\/ \u30e1\u30bf\u30c7\u30fc\u30bf\u306e\u767b\u9332<\/span>\r\n    TestBed<\/span>.<\/span>configureTestingModule<\/span>({<\/span>\r\n      \/\/ \u30c6\u30b9\u30c8\u3055\u308c\u308bComponent\u3092\u767b\u9332<\/span>\r\n      declarations<\/span>:<\/span> [<\/span>\r\n        AppComponent<\/span>\r\n      ],<\/span>\r\n      providers<\/span>:<\/span> [<\/span>\r\n        {<\/span>provide<\/span>:<\/span> ComponentFixtureAutoDetect<\/span>,<\/span> useValue<\/span>:<\/span> true<\/span>}<\/span>\r\n      ]<\/span>\r\n    }).<\/span>compileComponents<\/span>();<\/span> \/\/ \u5916\u90e8\u30d5\u30a1\u30a4\u30eb\u3092\u30b3\u30f3\u30d1\u30a4\u30eb<\/span>\r\n\r\n  }));<\/span>\r\n\r\n  \/\/ \u540c\u671f\u51e6\u7406<\/span>\r\n  \/\/ Component\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210<\/span>\r\n  beforeEach<\/span>(()<\/span> =><\/span> {<\/span>\r\n    \/\/ ComponentFixture\u306f\u3001 component\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u305d\u306e\u3082\u306e\u3068component\u306eDOM element\u306e\u30cf\u30f3\u30c9\u30eb\u3067\u3042\u308bDebugElement\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u63d0\u4f9b\u3059\u308b\u3002<\/span>\r\n    fixture<\/span> =<\/span> TestBed<\/span>.<\/span>createComponent<\/span>(<\/span>AppComponent<\/span>);<\/span>\r\n\r\n    \/\/ \u30c6\u30b9\u30c8\u3055\u308c\u308bComponent\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9<\/span>\r\n    comp<\/span> =<\/span> fixture<\/span>.<\/span>componentInstance<\/span>;<\/span>\r\n\r\n    \/\/ query\u306f\u3001fixture\u306eDOM\u5168\u4f53\u306e\u4e2d\u304b\u3089\u3001\u5f15\u6570\u3067\u4e0e\u3048\u305felement\u3092\u6e80\u305f\u3059\u6700\u521d\u306eDom element\u3068\u30de\u30c3\u30c1\u3057\u305fDebugElement\u3092\u8fd4\u3059<\/span>\r\n    \/\/ By\u3067\u306f\u3001css\u306eselector\u3092\u751f\u6210\u3057\u3066\u3044\u308b\u3002<\/span>\r\n    de<\/span> =<\/span> fixture<\/span>.<\/span>debugElement<\/span>.<\/span>query<\/span>(<\/span>By<\/span>.<\/span>css<\/span>(<\/span>'<\/span>h1<\/span>'<\/span>));<\/span>\r\n\r\n    el<\/span> =<\/span> de<\/span>.<\/span>nativeElement<\/span>;<\/span>\r\n  });<\/span>\r\n\r\n\r\n\/\/ it\u3067Spec\u3092\u4f5c\u6210<\/span>\r\n  it<\/span>(<\/span>'<\/span>AppComponent\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u304c\u751f\u6210\u3067\u304d\u3066\u3044\u308b\u304b\u3069\u3046\u304b<\/span>'<\/span>,<\/span> async<\/span>(()<\/span> =><\/span> {<\/span>\r\n    \/\/ true\u304b\u3069\u3046\u304bs<\/span>\r\n    expect<\/span>(<\/span>comp<\/span>).<\/span>toBeTruthy<\/span>();<\/span>\r\n  }));<\/span>\r\n  it<\/span>(<\/span>'<\/span>\u4f55\u3082\u3057\u306a\u3044\u5834\u5408\u306e\u30bf\u30a4\u30c8\u30eb\u304cAppComponent\u306etitle\u3068\u540c\u3058\u304b\u3069\u3046\u304b<\/span>'<\/span>,<\/span> async<\/span>(()<\/span> =><\/span> {<\/span>\r\n    expect<\/span>(<\/span>el<\/span>.<\/span>textContent<\/span>).<\/span>toContain<\/span>(<\/span>comp<\/span>.<\/span>title<\/span>);<\/span>\r\n  }));<\/span>\r\n  it<\/span>(<\/span>'<\/span>\u4f55\u3082\u3057\u306a\u3044\u5834\u5408\u306e\u30bf\u30a4\u30c8\u30eb\u304cAppComponent\u306etitle\u3068\u540c\u3058\u304b\u3069\u3046\u304b(\u4e0a\u306e\u30c6\u30b9\u30c8\u3068\u540c\u3058\u3053\u3068\u3092\u3057\u3066\u3044\u308b)<\/span>'<\/span>,<\/span> async<\/span>(()<\/span> =><\/span> {<\/span>\r\n    expect<\/span>(<\/span>el<\/span>.<\/span>textContent<\/span>).<\/span>toContain<\/span>(<\/span>'<\/span>\u30c6\u30b9\u30c8\u3060\u3088<\/span>'<\/span>);<\/span>\r\n  }));<\/span>\r\n\r\n  it<\/span>(<\/span>'<\/span>detectChanges\u304c1\u56de\u8d77\u304d\u305f\u6642\u3001h1\u306e\u5024\u304c\u5909\u66f4\u3055\u308c\u308b\u304b\u3069\u3046\u304b<\/span>'<\/span>,<\/span> async<\/span>(()<\/span> =><\/span> {<\/span>\r\n    comp<\/span>.<\/span>title<\/span> =<\/span> '<\/span>\u30af\u30ea\u30c3\u30af\u3055\u308c\u305f\u305c!<\/span>'<\/span>;<\/span>\r\n    fixture<\/span>.<\/span>detectChanges<\/span>();<\/span>\r\n    expect<\/span>(<\/span>el<\/span>.<\/span>textContent<\/span>).<\/span>toContain<\/span>(<\/span>comp<\/span>.<\/span>title<\/span>);<\/span>\r\n  }));<\/span>\r\n\r\n  it<\/span>(<\/span>'<\/span>changeH1Element\u304c\u547c\u3073\u51fa\u3055\u308c\u305f\u3089\u3001title\u304c\u5909\u66f4\u3055\u308c\u308b\u304b\u3069\u3046\u304b<\/span>'<\/span>,<\/span> async<\/span>(()<\/span>=><\/span> {<\/span>\r\n    comp<\/span>.<\/span>changeH1Element<\/span>();<\/span>\r\n    expect<\/span>(<\/span>comp<\/span>.<\/span>title<\/span>).<\/span>toBe<\/span>(<\/span>'<\/span>\u30af\u30ea\u30c3\u30af\u3055\u308c\u305f\u305c!<\/span>'<\/span>);<\/span>\r\n  }));<\/span>\r\n});<\/span>\r\n\r\n<\/code><\/pre>\n
\u5728\u6bcf\u4e2a\u5904\u7406\u4e2d\u6240\u505a\u7684\u4e8b\u60c5\u5df2\u7ecf\u4ee5\u4ee3\u7801\u4e2d\u7684\u6ce8\u91ca\u5f62\u5f0f\u8bb0\u5f55\u4e0b\u6765\u3002<\/p>\n
Angular\u6d4b\u8bd5\u7684\u6574\u4f53\u67b6\u6784<\/h2>\n
\u57fa\u672c\u4e0a\uff0c\u4f3c\u4e4e\u9075\u5faajasmine\u7684\u7d50\u69cb\u3002
\n1. \u5728beforeEach\u4e2d\uff0c\u63cf\u8ff0\u5728\u6bcf\u500b\u6e2c\u8a66Spec\u57f7\u884c\u4e4b\u524d\u8981\u57f7\u884c\u7684\u4ee3\u78bc\u3002\uff08\u6709\u6642\u5019\u4e5f\u53ef\u4ee5\u5728afterEach\u4e2d\uff0c\u63cf\u8ff0\u5728\u6bcf\u500b\u6e2c\u8a66Spec\u57f7\u884c\u4e4b\u5f8c\u8981\u57f7\u884c\u7684\u4ee3\u78bc\u3002\uff09
\n2. \u4f7f\u7528descibe\u5275\u5efaSuite\uff08\u4e00\u7d44\u6e2c\u8a66\u7684\u584a\uff09\uff0c\u4e26\u5728\u5176\u4e2d\u4f7f\u7528it\u4f86\u63cf\u8ff0\u591a\u500bSpec\uff08\u55ae\u7368\u7684\u6e2c\u8a66\u65b9\u6cd5\uff09\u3002\u5728\u9019\u500bit\u4e2d\uff0c\u9032\u884c\u5404\u7a2e\u6e2c\u8a66\u3002<\/p>\n
\u5728Angular\u7684\u6d4b\u8bd5\u4e2d\u4f7f\u7528\u7684\u7c7b\u548c\u65b9\u6cd5-\u4f7f\u7528Angular\u8fdb\u884c\u6d4b\u8bd5\u7684\u7c7b\u548c\u65b9\u6cd5<\/h2>\n
\u6d4b\u8bd5\u5e73\u53f0<\/h3>\n
Angular\u5b98\u65b9\u6587\u6863\u7684\u516c\u5f0fAPI\u53c2\u8003\uff0c\u53ef\u4ee5\u5728\u6b64\u94fe\u63a5\u4e2d\u627e\u5230\uff1ahttps:\/\/angular.io\/docs\/ts\/latest\/api\/core\/testing\/index\/TestBed-class.html<\/p>\n
\u4e3a\u5355\u5143\u6d4b\u8bd5\u914d\u7f6e\u548c\u521d\u59cb\u5316\u73af\u5883\uff0c\u5e76\u63d0\u4f9b\u5728\u5355\u5143\u6d4b\u8bd5\u4e2d\u521b\u5efa\u7ec4\u4ef6\u548c\u670d\u52a1\u7684\u65b9\u6cd5\u3002<\/p><\/blockquote>\n
\u521b\u5efa\u7528\u4e8e\u914d\u7f6e\u548c\u521d\u59cb\u5316\u5355\u5143\u6d4b\u8bd5\u73af\u5883\u7684\u8bbe\u7f6e\u3002
\n\u6b64\u5916\uff0c\u521b\u5efa\u7528\u4e8e\u5728\u5355\u5143\u6d4b\u8bd5\u5185\u751f\u6210\u7ec4\u4ef6\u548c\u670d\u52a1\u7684\u65b9\u6cd5\u3002<\/p>\n
\u5b83\u521b\u5efa\u4e86\u4e00\u4e2aAngular\u6d4b\u8bd5\u6a21\u5757-\u4e00\u4e2a@NgModule\u7c7b\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7configureTestingModule\u65b9\u6cd5\u8fdb\u884c\u914d\u7f6e\uff0c\u4ee5\u4e3a\u8981\u6d4b\u8bd5\u7684\u7c7b\u751f\u6210\u6a21\u5757\u73af\u5883\u3002<\/p><\/blockquote>\n
TestBed\u7528\u4e8e\u751f\u6210Angular\u7684\u6d4b\u8bd5\u6a21\u5757\uff08@NgModule\u7c7b\uff09\u3002
\n@NgModule\u7c7b\u5728configureTestingModule\u65b9\u6cd5\u4e2d\u8bbe\u7f6e\u4e3a\u8981\u6d4b\u8bd5\u7684\u7c7b\u7684\u6a21\u5757\u73af\u5883\u3002<\/p>\n
\u8fdb\u884c\u6d4b\u8bd5\u73af\u5883\u7684\u521d\u59cb\u5316\u548c\u8bbe\u7f6e\u3002<\/p>\n
\u6d4b\u8bd5\u5e8a\u914d\u7f6eTestingModule<\/h3>\n
\u8bbe\u7f6e\u7528\u4e8e\u8981\u6d4b\u8bd5\u7684\u7c7b\u7684\u6a21\u5757\u73af\u5883\u3002
\n\u8fdb\u884c\u5143\u6570\u636e\u7684\u6ce8\u518c\u3002\u7c7b\u4f3c\u4e8e@NgModule\u7684\u6d4b\u8bd5\u7248\u672c\u3002<\/p>\n
beforeEach\uff08jasmine\u7684\u65b9\u6cd5\uff09\u4e4b\u524d<\/h3>\n
\u5728\u6bcf\u4e2a\u7279\u5b9a\u6d4b\u8bd5\u5f00\u59cb\u524d\u8fdb\u884c\u914d\u7f6e\u5904\u7406\u3002<\/p>\n
TestBed.createComponent()\u662f\u7528\u4e8e\u5728Angular\u6d4b\u8bd5\u4e2d\u521b\u5efa\u7ec4\u4ef6\u5b9e\u4f8b\u7684\u51fd\u6570\u3002ComponentFixture\u662f\u4e00\u4e2a\u5305\u542b\u4e86\u7ec4\u4ef6\u5b9e\u4f8b\u53ca\u5176\u76f8\u5173\u5c5e\u6027\u548c\u529f\u80fd\u7684\u8f85\u52a9\u5de5\u5177\u7c7b\u3002<\/h3>\n
TestBed.createComponent\u662fAngular\u6846\u67b6\u4e2d\u7684\u516c\u5171API\u5f15\u7528\uff0c\u5177\u4f53\u4fe1\u606f\u8bf7\u53c2\u9605https:\/\/angular.io\/docs\/js\/latest\/api\/core\/testing\/index\/TestBed-class.html\u3002<\/p>\n
ComponentFixture\u662fAngular\u6846\u67b6\u4e2d\u7684\u516c\u5171API\u5f15\u7528\uff0c\u5177\u4f53\u4fe1\u606f\u8bf7\u53c2\u9605https:\/\/angular.io\/docs\/ts\/latest\/api\/core\/testing\/index\/ComponentFixture-class.html\u3002<\/p>\n
createComponent\u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2aComponentFixture\uff0c\u5728\u521b\u5efa\u7684\u7ec4\u4ef6\u5468\u56f4\u63d0\u4f9b\u4e86\u4e00\u4e2a\u6d4b\u8bd5\u73af\u5883\u7684\u53e5\u67c4\u3002Fixture\u63d0\u4f9b\u4e86\u5bf9\u7ec4\u4ef6\u5b9e\u4f8b\u672c\u8eab\u548cDebugElement\u7684\u8bbf\u95ee\u6743\u9650\uff0cDebugElement\u662f\u5bf9\u7ec4\u4ef6\u7684DOM\u5143\u7d20\u7684\u53e5\u67c4\u3002<\/p><\/blockquote>\n
createComponent(TestBed.createComponent)\u51fd\u6570\u4f1a\u8fd4\u56de\u4e00\u4e2aComponentFixture\u7c7b\uff0c\u8be5\u7c7b\u662f\u7528\u4e8e\u6d4b\u8bd5\u751f\u6210\u7684\u7ec4\u4ef6\u7684\u73af\u5883\u53e5\u67c4\u3002ComponentFixture\u7c7b\u63d0\u4f9b\u4e86\u5bf9\u7ec4\u4ef6\u5b9e\u4f8b\u672c\u8eab\u4ee5\u53ca\u7ec4\u4ef6DOM\u5143\u7d20\u7684\u53e5\u67c4DebugElement\u7684\u8bbf\u95ee\u6743\u9650\u3002<\/p>\n
ComponentFixture\u63d0\u4f9b\u4e86\u5bf9\u60f3\u8981\u6d4b\u8bd5\u7684\u7ec4\u4ef6\u5b9e\u4f8b\u548c\u8be5\u7ec4\u4ef6\u7684DebugElement\u7684\u8bbf\u95ee\u3002\u6b64\u529f\u80fd\u4f7f\u5f97\u53ef\u4ee5\u64cd\u4f5c\u6d4b\u8bd5\u76ee\u6807\u7ec4\u4ef6\u7684\u5b9e\u4f8b\u548cDOM\u5143\u7d20\u3002<\/p>\n
\u636e\u6211\u7684\u7406\u89e3\uff0c\u4f3c\u4e4e\u662f\u5728\u4f7f\u7528createComponent\u540e\uff0c\u4e0d\u5e94\u8be5\u518d\u4f7f\u7528TestBed\u7684\u914d\u7f6e\u65b9\u6cd5\uff0c\u56e0\u4e3a\u5b83\u4f1a\u5173\u95edTestBed\u5b9e\u4f8b\u7684\u8bbe\u7f6e\u3002<\/p>\n
\u8c03\u8bd5\u5143\u7d20\u67e5\u8be2<\/h3>\n
\u516c\u5f0fAPI\u53c2\u8003\u8d44\u6599
\nhttps:\/\/angular.io\/docs\/ts\/latest\/api\/core\/index\/DebugElement-class.html<\/p>\n
\u5728\u7ed9\u5b9a\u7684DOM\u5143\u7d20\u96c6\u5408\u4e2d\uff0c\u901a\u8fc7\u53c2\u6570\u6307\u5b9a\u7684\u5143\u7d20\uff0c\u67e5\u8be2\u5e76\u8fd4\u56de\u4e0e\u4e4b\u5339\u914d\u7684\u7b2c\u4e00\u4e2aDebugElement\u3002fixture.debugElement.query\u7684DebugElement\u548c\u8fd4\u56de\u7684DebugElement\u662f\u4e0d\u540c\u7684\u3002<\/p>\n
\u5bf9\u4e8e\u67e5\u8be2\u5168\u90e8\u7684\u60c5\u51b5\uff0c\u5b83\u4f1a\u8fd4\u56de\u4e00\u4e2a\u6570\u7ec4\uff0c\u5176\u4e2d\u5305\u542b\u6ee1\u8db3\u7ed9\u5b9a\u5143\u7d20\u53c2\u6570\u7684\u6240\u6709Dom\u5143\u7d20\u3002<\/p>\n
\u8bf7\u53c2\u8003\u4ee5\u4e0b\u94fe\u63a5\u83b7\u53d6\u66f4\u591a\u4fe1\u606f\uff1a
\nhttps:\/\/angular.io\/docs\/ts\/latest\/guide\/testing.html#!%23component-fixture
\nhttps:\/\/angular.io\/docs\/js\/latest\/api\/core\/index\/DebugElement-class.html#!%23query-anchor<\/p>\n
\u4f7f\u7528\u4e0b\u9762\u7684\u6587\u5b57\u539f\u751f\u5730\u7528\u4e2d\u6587\u8868\u8fbe\uff0c\u53ea\u9700\u8981\u4e00\u4e2a\u9009\u9879\uff1a<\/h3>\n
\u901a\u8fc7<\/p>\n
\u5728Angular\u7684Utility\u4e2d\uff0c\u751f\u6210predicates\uff08\u8c13\u8bcd\uff09\u7684\u529f\u80fd\u3002<\/p>\n
\u516c\u5f0fAPI\u53c2\u8003
\nhttps:\/\/angular.io\/docs\/ts\/latest\/api\/platform-browser\/index\/By-class.html<\/p>\n
\u76d1\u6d4b\u53d8\u5316<\/h3>\n
\u8fdb\u884c\u7ec4\u4ef6\u7684\u53d8\u66f4\u68c0\u6d4b\u5468\u671f\u3002<\/p>\n
\u4e2d\u6587\u672c\u571f\u5316\u540e\u7684\u7248\u672c\u4e3a\uff1a<\/p>\n
Angular 2\u53d8\u66f4\u68c0\u6d4b\u89e3\u91ca- Qiita\u5bf9\u4e8edetectChanges\u975e\u5e38\u6613\u61c2\u7684\u89e3\u91ca\u5982\u4e0b\u94fe\u63a5\uff1a
\nhttps:\/\/angular.io\/docs\/ts\/latest\/api\/core\/testing\/index\/ComponentFixture-class.html#!%23detectChanges-anchor<\/p>\n
\u501f\u7528\u4ee5\u4e0b\u6587\u7ae0\u4e2d\u7684\u8bcd\u6c47\uff0c\u53ef\u81ea\u7136\u5730\u7528\u4e2d\u6587\u8fdb\u884c\u6539\u8ff0\uff1a<\/p>\n
\u5982\u679c\u5f15\u7528\u4ee5\u4e0b\u6587\u7ae0\u7684\u8bcd\u6c47\uff0c\u53ef\u4ee5\u7528\u4e2d\u6587\u8fdb\u884c\u4e00\u79cd\u81ea\u7136\u7684\u6539\u8ff0\uff1a<\/p>\n
\u53d8\u66f4\u68c0\u6d4b\u662f\u6307\u68c0\u6d4b\u6a21\u578b\u7684\u53d8\u5316\u5e76\u5c06\u5176\u53cd\u6620\u5728\u7528\u6237\u754c\u9762\u4e0a\u3002<\/p><\/blockquote>\n
\u5f15\u7528\u6765\u6e90 \u5927\u81f4\u610f\u601d\u662f\uff1aAngular 2 \u53d8\u66f4\u68c0\u6d4b\u89e3\u91ca – Qiita<\/p>\n
\u901a\u8fc7\u8c03\u7528fixture.detectChanges()\u6765\u544a\u77e5Angular\u4ece\u6d4b\u8bd5\u4e2d\u8fdb\u884c\u53d8\u5316\u68c0\u6d4b\u3002<\/p>\n
\u4f7f\u7528Angular\u8bfb\u53d6\u5916\u90e8\u7684\u6a21\u677f\u3002<\/h2>\n
\u5728\u4f7f\u7528\u5916\u90e8\u7684\u6a21\u677f\u548cCSS\u6587\u4ef6\u65f6\uff0c\u4f3c\u4e4e\u9700\u8981\u8fdb\u884c\u4e00\u4e9b\u7b80\u5355\u7684\u5904\u7406\u3002<\/p>\n
\u4f46\u662fAngular\u6a21\u677f\u7f16\u8bd1\u5668\u5728\u521b\u5efa\u7ec4\u4ef6\u5b9e\u4f8b\u4e4b\u524d\u5fc5\u987b\u4ece\u6587\u4ef6\u7cfb\u7edf\u4e2d\u8bfb\u53d6\u5916\u90e8\u6587\u4ef6\u3002\u8fd9\u662f\u4e00\u4e2a\u5f02\u6b65\u7684\u6d3b\u52a8\u3002<\/p><\/blockquote>\n
\u5728Angular\u4e2d\uff0c\u5728\u521b\u5efa\u7ec4\u4ef6\u5b9e\u4f8b\u4e4b\u524d\uff0cAngular\u6a21\u677f\u7f16\u8bd1\u5668\u9700\u8981\u52a0\u8f7d\u5916\u90e8\u6587\u4ef6\uff0c\u8fd9\u662f\u4e00\u4e2a\u5f02\u6b65\u64cd\u4f5c\u3002<\/p>\n
\u6362\u53e5\u8bdd\u8bf4\uff0c\u5728\u751f\u6210 Component \u5b9e\u4f8b\u4e4b\u524d\uff0cAngular \u6a21\u677f\u7f16\u8bd1\u5668\u9700\u8981\u5728 beforeEach \u4e2d\u6267\u884c\u80fd\u591f\u8bfb\u53d6\u5916\u90e8\u6587\u4ef6\u7684\u5904\u7406\u3002<\/p>\n
\u6d4b\u8bd5\u5e8a\u7f16\u8bd1\u7ec4\u4ef6<\/h3>\n
\u516c\u5f0fAPI\u53c2\u8003\u6587\u6863<\/p>\n
\u9996\u5148\uff0c\u5728\u6d4b\u8bd5\u6a21\u5757\u4e2d\u4ee5\u5f02\u6b65\u65b9\u5f0f\u7f16\u8bd1\u8bbe\u5b9a\u7684\u7ec4\u4ef6\u3002
\n\u4e00\u65e6\u5b8c\u6210\u4e0a\u8ff0\u7684compileComponents\uff0c\u5916\u90e8\u6587\u4ef6\u548cCSS\u6587\u4ef6\u5c06\u88ab\u5185\u8054\uff0c
\n\u800cTestBed.createComponent\u5c06\u53ef\u4ee5\u540c\u6b65\u5730\u751f\u6210\u7ec4\u4ef6\u5b9e\u4f8b\u3002<\/p>\n
\u8bf7\u53c2\u8003\uff1ahttps:\/\/angular.io\/docs\/ts\/latest\/guide\/testing.html#!%23component-fixture<\/p>\n
\u5728\u5c06template\u548ccss\u8f6c\u79fb\u5230\u5916\u90e8\u6587\u4ef6\u65f6\uff0c\u52a1\u5fc5\u5728\u201c\u751f\u6210\u7ec4\u4ef6\u5b9e\u4f8b\u201d\u4e4b\u524d\u6b63\u786e\u5730\u4f7f\u7528\u5f02\u6b65\u548c\u540c\u6b65\u6765\u201c\u52a0\u8f7d\u5916\u90e8\u6587\u4ef6\u201d\u3002\uff08\u4ee3\u7801\u7684\u7f16\u5199\u987a\u5e8f\u53ef\u4ee5\u4e0d\u6309\u7167\u8fd9\u4e2a\u987a\u5e8f\uff09<\/p>\n
\u8003\u8bd5\u6267\u884c\u754c\u9762<\/h2>\n
\u5f53\u60a8\u5728\u547d\u4ee4\u884c\u4e0a\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\u65f6\uff0c\u5c06\u4f1a\u542f\u52a8Karma\u6d4b\u8bd5\u6267\u884c\u5668\u5e76\u6253\u5f00\u6d4f\u89c8\u5668\uff0c\u6d4b\u8bd5\u7ed3\u679c\u5c06\u663e\u793a\u5728\u6d4f\u89c8\u5668\u4e0a\u3002<\/p>\n
ng test\r\n<\/code><\/pre>\n
\"ng-karma.png\"<\/div>\n
\u6211\u53c2\u8003\u4e86\u8fd9\u4e2a\u7f51\u7ad9\u3002<\/h2>\n
\u516c\u5f0f
\nhttps:\/\/angular.io\/docs\/ts\/latest\/guide\/testing.html#!\uff03\u7ec4\u4ef6-\u5939\u5177<\/p>\n
jasmine\u516c\u5f0f
\nhttps:\/\/jasmine.github.io\/2.0\/introduction.html
\nJasmine\u5b98\u65b9\u6587\u6863
\nJasmine\u4f7f\u3044\u65b9\u30e1\u30e2 – Qiita
\nJasmine\u4f7f\u7528\u65b9\u6cd5\u7b14\u8bb0 – Qiita
\nJasmine spec\u899a\u3048\u66f8\u304d – Qiita
\nJasmine\u89c4\u8303\u5907\u5fd8\u5f55 – Qiita<\/p>\n
\u7528\u4e2d\u6587\u5c06\u4ee5\u4e0b\u5185\u5bb9\u8fdb\u884c\u6539\u8ff0\uff0c\u53ea\u9700\u8981\u63d0\u4f9b\u4e00\u79cd\u9009\u62e9\uff1a<\/p>\n
\u6613\u4e8e\u7406\u89e3\u7684Karma\u6587\u7ae0
\n\u9010\u6b65\u5f00\u59cb\u4f7f\u7528Karma – Qiita
\nKarma\u5b98\u65b9\u7f51\u7ad9
\nKarma – \u4ee4\u4eba\u60ca\u53f9\u7684JavaScript\u6d4b\u8bd5\u8fd0\u884c\u5668<\/p>\n
\u516c\u5f0fAPI\u53c2\u8003\u8d44\u6599
\nhttps:\/\/angular.io\/docs\/ts\/latest\/api\/core\/testing\/index\/TestBed-class.html
\nhttps:\/\/angular.io\/docs\/js\/latest\/api\/core\/testing\/index\/TestBed-class.html
\nhttps:\/\/angular.io\/docs\/ts\/latest\/api\/core\/testing\/index\/ComponentFixture-class.html
\nhttps:\/\/angular.io\/docs\/ts\/latest\/api\/core\/index\/DebugElement-class.html
\nhttps:\/\/angular.io\/docs\/ts\/latest\/api\/platform-browser\/index\/By-class.html
\nhttps:\/\/angular.io\/docs\/ts\/latest\/api\/core\/testing\/index\/ComponentFixture-class.html#!%23detectChanges-anchor<\/p>\n
\u5173\u4e8edetectChanges\u7684\u8bf4\u660e\uff1a
\nAngular 2\u53d8\u66f4\u68c0\u6d4b\u89e3\u91ca – Qiita<\/p>\n
\n
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Angular4\uff08Angular2 \u301c\uff09\u7684\u5355\u5143\u6d4b\u8bd5\u3010Angular\u5355\u5143\u6d4b\u8bd5\u7684\u57fa\u7840\u548c\u7ec4\u4ef6\u7b80\u5355\u6d4b\u8bd5\u90e8\u5206\u3011\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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