\u5f53\u6211\u5728\u4e3aAngular\u7684\u670d\u52a1\u7c7b\u7f16\u5199\u6d4b\u8bd5\u4ee3\u7801\u65f6\uff0c\u9047\u5230\u4e86\u4ee5\u4e0b\u9519\u8bef\u800c\u9677\u5165\u56f0\u5883\u3002<\/p>\n
TypeError: Cannot read property '\u0275prov' of undefined\r\n<\/code><\/pre>\n\u6216\u8005<\/p>\n
Can't resolve all parameters for HeroService: (?).\r\n<\/code><\/pre>\n\u603b\u7684\u6765\u8bf4\uff0c\u5c3d\u7ba1\u6211\u4eec\u4e0d\u77e5\u9053\u5177\u4f53\u539f\u56e0\uff0c\u4f46\u901a\u8fc7\u5c06\u670d\u52a1\u7c7b@Injectable\u5185\u90e8\u7684\u4ee3\u7801\u66f4\u6539\u4e3a\u4ee5\u4e0b\u5185\u5bb9\uff0c\u95ee\u9898\u5f97\u4ee5\u89e3\u51b3\u3002<\/p>\n
@Injectable({<\/span> \r\n- providedIn: 'root',\r\n<\/span>+ providedIn: 'root'\r\n<\/span>})<\/span>\r\nexport class HeroService {\r\n\r\n<\/code><\/pre>\n\u53ea\u662f\u5220\u9664\u4e86\u9017\u53f7\u800c\u5df2…\u5982\u679c\u6709\u4eba\u77e5\u9053\u539f\u56e0\uff0c\u8bf7\u5728\u8bc4\u8bba\u533a\u544a\u8bc9\u6211\uff0c\u611f\u6fc0\u4e0d\u5c3d\u3002<\/p>\n
\uff082020\u5e7411\u670815\u65e5\u66f4\u65b0\uff09
\n\u95ee\u9898\u5df2\u89e3\u51b3\u3002\uff08\u9017\u53f7\u786e\u5b9e\u65e0\u5173\u7d27\u8981\u3002\uff09
\n\u5728tsconfig\u7684compilerOptions\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u53c2\u6570\u540e\uff0c\u9519\u8bef\u5df2\u89e3\u51b3\u3002<\/p>\n
{<\/span>\r\n \"compilerOptions\": {\r\n+ \"emitDecoratorMetadata\": true\r\n<\/span> },\r\n}<\/span>\r\n<\/code><\/pre>\n\u6839\u636e\u8fd9\u4e2ajest-preset-angular\uff0c\u636e\u8bf4Angular8\u53ca\u4ee5\u4e0a\u7248\u672c\u53ef\u80fd\u4f1a\u7f3a\u5c11\u5143\u6570\u636e\uff0c\u53d6\u51b3\u4e8eCLI\u7684\u914d\u7f6e\u3002<\/p>\n
\u4f7f\u7528Angular 8\u53ca\u66f4\u9ad8\u7248\u672c\u65f6\uff0cAngular CLI\u7684\u5de5\u4f5c\u65b9\u5f0f\u53ef\u80fd\u53d1\u751f\u4e86\u53d8\u5316\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u5143\u6570\u636e\u4e22\u5931\u3002<\/p><\/blockquote>\n
\u6dfb\u52a0\u6b64\u8bbe\u7f6e\u5e76\u8fd0\u884c\u540e\uff0c\u6d4b\u8bd5\u901a\u8fc7\u4e86\u3002
\n\u987a\u4fbf\u63d0\u4e00\u4e0b\uff0c\u5982\u679c\u66f4\u6539\u8bbe\u7f6e\u540e\u4ecd\u7136\u6ca1\u6709\u53d8\u5316\uff0c\u53ef\u4ee5\u5c1d\u8bd5\u7981\u7528\u7f13\u5b58\u5e76\u8fd0\u884c\uff0c\u6216\u8bb8\u4f1a\u6709\u597d\u5904\u3002<\/p>\n
$ <\/span>jest hero.service --no-cache<\/span>\r\n<\/code><\/pre>\n\uff08\u8ffd\u52a0\u7d50\u675f\uff09<\/p>\n
\n\u73af\u5883<\/h2>\n$ <\/span>ng --version<\/span>\r\nAngular CLI: 10.1.7\r\nNode: 12.16.1\r\nOS: win32 x64\r\n\r\nAngular: 10.1.6\r\n... animations, common, compiler, compiler-cli, core, forms\r\n... platform-browser, platform-browser-dynamic, router\r\nIvy Workspace: Yes\r\n\r\nPackage Version\r\n---------------------------------------------------------<\/span>\r\n@angular-devkit\/architect 0.1001.7\r\n@angular-devkit\/build-angular 0.1002.0\r\n@angular-devkit\/core 10.1.7\r\n@angular-devkit\/schematics 10.1.7\r\n@angular\/cli 10.1.7\r\n@schematics\/angular 10.1.7\r\n@schematics\/update 0.1001.7\r\nrxjs 6.6.3\r\ntypescript 4.0.5\r\n<\/code><\/pre>\n\u7ecf\u8fc7<\/h2>\n
\u6211\u8bd5\u56fe\u5bf9Angular\u6559\u7a0b\u300a\u82f1\u96c4\u4e4b\u65c5\u300b\u4e2d\u7684\u201c4.\u6dfb\u52a0\u670d\u52a1\u201d\u90e8\u5206\u7684\u793a\u4f8b\u4ee3\u7801\u8fdb\u884c\u6d4b\u8bd5\u4ee3\u7801\u7684\u5b9e\u73b0\u3002<\/p>\n
\u6d4b\u9a8c\u76ee\u6807\u7c7b\u522b\u5982\u4e0b\u3002\u76f4\u63a5\u4e0b\u8f7d\u7684\u6587\u4ef6\u3002<\/p>\n
import<\/span> {<\/span> Injectable<\/span> }<\/span> from<\/span> '<\/span>@angular\/core<\/span>'<\/span>;<\/span>\r\nimport<\/span> {<\/span> Observable<\/span>,<\/span> of<\/span> }<\/span> from<\/span> '<\/span>rxjs<\/span>'<\/span>;<\/span>\r\nimport<\/span> {<\/span> Hero<\/span> }<\/span> from<\/span> '<\/span>.\/hero<\/span>'<\/span>;<\/span>\r\nimport<\/span> {<\/span> HEROES<\/span> }<\/span> from<\/span> '<\/span>.\/mock-heroes<\/span>'<\/span>;<\/span>\r\nimport<\/span> {<\/span> MessageService<\/span> }<\/span> from<\/span> '<\/span>.\/message.service<\/span>'<\/span>;<\/span>\r\n\r\n@<\/span>Injectable<\/span>({<\/span>\r\n providedIn<\/span>:<\/span> '<\/span>root<\/span>'<\/span>,<\/span>\r\n})<\/span>\r\nexport<\/span> class<\/span> HeroService<\/span> {<\/span>\r\n\r\n constructor<\/span>(<\/span>private<\/span> messageService<\/span>:<\/span> MessageService<\/span>)<\/span> {<\/span> }<\/span>\r\n\r\n getHeroes<\/span>():<\/span> Observable<\/span><<\/span>Hero<\/span>[]<\/span>><\/span> {<\/span>\r\n \/\/ TODO: send the message _after_ fetching the heroes<\/span>\r\n this<\/span>.<\/span>messageService<\/span>.<\/span>add<\/span>(<\/span>'<\/span>HeroService: fetched heroes<\/span>'<\/span>);<\/span>\r\n return<\/span> of<\/span>(<\/span>HEROES<\/span>);<\/span>\r\n }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n\u4f5c\u4e3a\u56de\u5e94\uff0c\u5b9e\u65bd\u4ee5\u4e0b\u6d4b\u8bd5\u4ee3\u7801\u3002<\/p>\n
\r\nimport<\/span> {<\/span> TestBed<\/span> }<\/span> from<\/span> '<\/span>@angular\/core\/testing<\/span>'<\/span>;<\/span>\r\nimport<\/span> {<\/span> HeroService<\/span> }<\/span> from<\/span> '<\/span>src\/app\/hero.service<\/span>'<\/span>;<\/span>\r\n\r\ndescribe<\/span>(<\/span>'<\/span>TestHeroService<\/span>'<\/span>,<\/span> ()<\/span> =><\/span> {<\/span>\r\n let<\/span> heroService<\/span>:<\/span> HeroService<\/span>;<\/span>\r\n\r\n beforeEach<\/span>(()<\/span> =><\/span> {<\/span>\r\n TestBed<\/span>.<\/span>configureTestingModule<\/span>({});<\/span>\r\n heroService<\/span> =<\/span> TestBed<\/span>.<\/span>inject<\/span>(<\/span>HeroService<\/span>);<\/span>\r\n });<\/span>\r\n\r\n it<\/span>(<\/span>'<\/span>should be created<\/span>'<\/span>,<\/span> ()<\/span> =><\/span> {<\/span>\r\n expect<\/span>(<\/span>heroService<\/span>).<\/span>toBeTruthy<\/span>();<\/span>\r\n });<\/span>\r\n});<\/span>\r\n<\/code><\/pre>\n\u6253\u7b97\u5feb\u901f\u6d4b\u8bd5\u5b9e\u4f8b\u5316\uff0c\u7136\u540e\u5199\u6d4b\u8bd5\u65b9\u6cd5\uff0c\u4e00\u5f00\u59cb\u5982\u524d\u6240\u8ff0\u3002<\/p>\n
TypeError: Cannot read property '\u0275prov' of undefined\r\n<\/code><\/pre>\n\u53d1\u751f\u4e86\u4e00\u4e2a\u9519\u8bef\u3002
\n\u7ecf\u8fc7\u8c03\u67e5\uff0c\u53d1\u73b0DI\u6ca1\u6709\u6b63\u786e\u8fdb\u884c\uff0c\u4f46\u5177\u4f53\u539f\u56e0\u5c1a\u4e0d\u6e05\u695a\u3002<\/p>\n
\u89e3\u51b3\u4e4b\u9053<\/h2>\n
\u7ecf\u8fc7\u5982\u4e0b\u8fc7\u7a0b\uff0c\u95ee\u9898\u6682\u65f6\u5f97\u5230\u4e86\u89e3\u51b3\u3002<\/p>\n
\n- \n
\u5728HeroService\u4e2d\uff0c\u6ce8\u91ca\u6389\u4e86MessageService\u7684DI\u3002<\/ol>\n<\/li>\n<\/ol>\n <\/p>\n
\n- \n
\u9519\u8bef\u5f97\u5230\u89e3\u51b3\uff0c\u56e0\u6b64\u5224\u65adDI\u786e\u5b9e\u76f8\u5173\u3002<\/ol>\n<\/li>\n<\/ol>\n <\/p>\n
\n- \n
\u4f7f\u7528Angular CLI\u521b\u5efa\u4e86\u53e6\u4e00\u4e2a\u670d\u52a1\uff08TestService\uff09\u3002\u5728TestService\u4e2d\uff0c\u4e0eHeroService\u7c7b\u4f3c\uff0c\u8fdb\u884c\u4e86MessageService\u7684DI\uff0c\u5e76\u521b\u5efa\u4e86\u76f8\u4f3c\u7684\u6d4b\u8bd5\u4ee3\u7801\u3002<\/ol>\n<\/li>\n<\/ol>\n <\/p>\n
\n- \n
TestService\u7684\u6d4b\u8bd5\u4ee3\u7801\u901a\u8fc7\u4e86\u3002<\/ol>\n<\/li>\n<\/ol>\n <\/p>\n
\u901a\u8fc7\u6bd4\u8f83HeroService\u548cTestService\uff0c\u53d1\u73b0providedIn\u90e8\u5206\u4e0d\u540c\uff0c\u5e76\u8fdb\u884c\u4e86\u4fee\u6b63\uff0c\u4e4b\u540eHeroService\u7684\u6d4b\u8bd5\u4ee3\u7801\u901a\u8fc7\u4e86\u3002<\/ol>\n\u8fd9\u91cc\u662f\u4fee\u6b63\u540e\u7684\u4ee3\u7801\u3002hero.service.spec.ts
\n\u4ece ‘@angular\/core’ \u5bfc\u5165 { Injectable }\u3002
\n\u4ece ‘rxjs’ \u5bfc\u5165 { Observable, of }\u3002
\n\u4ece ‘.\/hero’ \u5bfc\u5165 { Hero }\u3002
\n\u4ece ‘.\/mock-heroes’ \u5bfc\u5165 { HEROES }\u3002
\n\u4ece ‘.\/message.service’ \u5bfc\u5165 { MessageService }\u3002<\/p>\n@Injectable({
\nprovidedIn: ‘root’ \/\/ \u53ea\u662f\u5220\u9664\u4e86\u9017\u53f7
\n})
\nexport class HeroService {<\/p>\n
constructor(private messageService: MessageService) { }<\/p>\n
getHeroes(): Observable<Hero[]> {
\n\/\/ TODO: \u5728\u83b7\u53d6\u82f1\u96c4\u540e\u53d1\u9001\u6d88\u606f
\nthis.messageService.add(‘HeroService: fetched heroes’);
\nreturn of(HEROES);
\n}
\n}<\/p>\n<\/details>\n","protected":false},"excerpt":{"rendered":"
\u8bf7\u6982\u62ec \u5f53\u6211\u5728\u4e3aAngular\u7684\u670d\u52a1\u7c7b\u7f16\u5199\u6d4b\u8bd5\u4ee3\u7801\u65f6\uff0c\u9047\u5230\u4e86\u4ee5\u4e0b\u9519\u8bef\u800c\u9677\u5165\u56f0\u5883\u3002 TypeError: Can […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-38980","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n
[Angular, Jest] \u89e3\u51b3 TypeError: Cannot read property '\u0275prov' of undefined \u9519\u8bef - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/angular-jest-\u89e3\u51b3-typeerror-cannot-read-property-\u0275prov-of-undefined-\u9519\u8bef\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Angular, Jest] \u89e3\u51b3 TypeError: Cannot read property '\u0275prov' of undefined \u9519\u8bef\" \/>\n<meta property=\"og:description\" content=\"\u8bf7\u6982\u62ec \u5f53\u6211\u5728\u4e3aAngular\u7684\u670d\u52a1\u7c7b\u7f16\u5199\u6d4b\u8bd5\u4ee3\u7801\u65f6\uff0c\u9047\u5230\u4e86\u4ee5\u4e0b\u9519\u8bef\u800c\u9677\u5165\u56f0\u5883\u3002 TypeError: Can […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/angular-jest-\u89e3\u51b3-typeerror-cannot-read-property-\u0275prov-of-undefined-\u9519\u8bef\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-12-01T16:22:43+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-01-15T02:06:29+00:00\" \/>\n<meta name=\"author\" content=\"\u97f5, \u79d1\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u97f5, \u79d1\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/angular-jest-%e8%a7%a3%e5%86%b3-typeerror-cannot-read-property-%c9%b5prov-of-undefined-%e9%94%99%e8%af%af\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/angular-jest-%e8%a7%a3%e5%86%b3-typeerror-cannot-read-property-%c9%b5prov-of-undefined-%e9%94%99%e8%af%af\/\",\"name\":\"[Angular, Jest] \u89e3\u51b3 TypeError: Cannot read property '\u0275prov' of undefined \u9519\u8bef - Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\"},\"datePublished\":\"2023-12-01T16:22:43+00:00\",\"dateModified\":\"2024-01-15T02:06:29+00:00\",\"author\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/6530331a63adef3b3443a1fab53a0e6e\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/angular-jest-%e8%a7%a3%e5%86%b3-typeerror-cannot-read-property-%c9%b5prov-of-undefined-%e9%94%99%e8%af%af\/#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/zh\/blog\/angular-jest-%e8%a7%a3%e5%86%b3-typeerror-cannot-read-property-%c9%b5prov-of-undefined-%e9%94%99%e8%af%af\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/angular-jest-%e8%a7%a3%e5%86%b3-typeerror-cannot-read-property-%c9%b5prov-of-undefined-%e9%94%99%e8%af%af\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.silicloud.com\/zh\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"[Angular, Jest] \u89e3\u51b3 TypeError: Cannot read property ‘\u0275prov’ of undefined \u9519\u8bef\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/\",\"name\":\"Blog - Silicon Cloud\",\"description\":\"\",\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/6530331a63adef3b3443a1fab53a0e6e\",\"name\":\"\u97f5, \u79d1\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/429ccb39b3fff5188bc17986222cfb0936cbadb8cc933cff04ab5ca01bd30a08?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/429ccb39b3fff5188bc17986222cfb0936cbadb8cc933cff04ab5ca01bd30a08?s=96&d=mm&r=g\",\"caption\":\"\u97f5, \u79d1\"},\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/author\/yunke\/\"},{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/angular-jest-%e8%a7%a3%e5%86%b3-typeerror-cannot-read-property-%c9%b5prov-of-undefined-%e9%94%99%e8%af%af\/#local-main-organization-logo\",\"url\":\"\",\"contentUrl\":\"\",\"caption\":\"Blog - Silicon Cloud\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"[Angular, Jest] \u89e3\u51b3 TypeError: Cannot read property '\u0275prov' of undefined \u9519\u8bef - Blog - Silicon Cloud","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.silicloud.com\/zh\/blog\/angular-jest-\u89e3\u51b3-typeerror-cannot-read-property-\u0275prov-of-undefined-\u9519\u8bef\/","og_locale":"zh_CN","og_type":"article","og_title":"[Angular, Jest] \u89e3\u51b3 TypeError: Cannot read property '\u0275prov' of undefined \u9519\u8bef","og_description":"\u8bf7\u6982\u62ec \u5f53\u6211\u5728\u4e3aAngular\u7684\u670d\u52a1\u7c7b\u7f16\u5199\u6d4b\u8bd5\u4ee3\u7801\u65f6\uff0c\u9047\u5230\u4e86\u4ee5\u4e0b\u9519\u8bef\u800c\u9677\u5165\u56f0\u5883\u3002 TypeError: Can […]","og_url":"https:\/\/www.silicloud.com\/zh\/blog\/angular-jest-\u89e3\u51b3-typeerror-cannot-read-property-\u0275prov-of-undefined-\u9519\u8bef\/","og_site_name":"Blog - Silicon Cloud","article_published_time":"2023-12-01T16:22:43+00:00","article_modified_time":"2024-01-15T02:06:29+00:00","author":"\u97f5, \u79d1","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"\u97f5, \u79d1","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"1 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.silicloud.com\/zh\/blog\/angular-jest-%e8%a7%a3%e5%86%b3-typeerror-cannot-read-property-%c9%b5prov-of-undefined-%e9%94%99%e8%af%af\/","url":"https:\/\/www.silicloud.com\/zh\/blog\/angular-jest-%e8%a7%a3%e5%86%b3-typeerror-cannot-read-property-%c9%b5prov-of-undefined-%e9%94%99%e8%af%af\/","name":"[Angular, Jest] \u89e3\u51b3 TypeError: Cannot read property '\u0275prov' of undefined \u9519\u8bef - Blog - Silicon Cloud","isPartOf":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/#website"},"datePublished":"2023-12-01T16:22:43+00:00","dateModified":"2024-01-15T02:06:29+00:00","author":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/6530331a63adef3b3443a1fab53a0e6e"},"breadcrumb":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/angular-jest-%e8%a7%a3%e5%86%b3-typeerror-cannot-read-property-%c9%b5prov-of-undefined-%e9%94%99%e8%af%af\/#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.silicloud.com\/zh\/blog\/angular-jest-%e8%a7%a3%e5%86%b3-typeerror-cannot-read-property-%c9%b5prov-of-undefined-%e9%94%99%e8%af%af\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.silicloud.com\/zh\/blog\/angular-jest-%e8%a7%a3%e5%86%b3-typeerror-cannot-read-property-%c9%b5prov-of-undefined-%e9%94%99%e8%af%af\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.silicloud.com\/zh\/blog\/"},{"@type":"ListItem","position":2,"name":"[Angular, Jest] \u89e3\u51b3 TypeError: Cannot read property ‘\u0275prov’ of undefined \u9519\u8bef"}]},{"@type":"WebSite","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#website","url":"https:\/\/www.silicloud.com\/zh\/blog\/","name":"Blog - Silicon Cloud","description":"","inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/6530331a63adef3b3443a1fab53a0e6e","name":"\u97f5, \u79d1","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/429ccb39b3fff5188bc17986222cfb0936cbadb8cc933cff04ab5ca01bd30a08?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/429ccb39b3fff5188bc17986222cfb0936cbadb8cc933cff04ab5ca01bd30a08?s=96&d=mm&r=g","caption":"\u97f5, \u79d1"},"url":"https:\/\/www.silicloud.com\/zh\/blog\/author\/yunke\/"},{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.silicloud.com\/zh\/blog\/angular-jest-%e8%a7%a3%e5%86%b3-typeerror-cannot-read-property-%c9%b5prov-of-undefined-%e9%94%99%e8%af%af\/#local-main-organization-logo","url":"","contentUrl":"","caption":"Blog - Silicon Cloud"}]}},"_links":{"self":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/38980","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/comments?post=38980"}],"version-history":[{"count":2,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/38980\/revisions"}],"predecessor-version":[{"id":58476,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/38980\/revisions\/58476"}],"wp:attachment":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/media?parent=38980"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/categories?post=38980"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/tags?post=38980"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}