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javascript - 错误 : Unexpected value 'FormGroup' declared by the module 'DynamicTestModule'

转载 作者:可可西里 更新时间:2023-11-01 01:47:39 25 4
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我们的项目结构如下:Angular2-webpack-starter .

我们的项目成功编译、构建并可以在浏览器中看到。这里没有问题。

但是当我们尝试使用 karma 和 jasmine 运行测试用例时,我们遇到了这个错误。

XXXXComponent
:heavy_multiplication_x: Should Match Current Tab as 1
Chrome 55.0.2883 (Mac OS X 10.10.5)
Error: Unexpected value 'FormGroup' declared by the module 'DynamicTestModule'
at SyntaxError.ZoneAwareError (webpack:///~/zone.js/dist/zone.js:811:0 <- config/spec-bundle.js:74048:33)
at SyntaxError.BaseError [as constructor] (webpack:///~/@angular/compiler/src/facade/errors.js:26:0 <- config/spec-bundle.js:78913:16)
at new SyntaxError (webpack:///~/@angular/compiler/src/util.js:151:0 <- config/spec-bundle.js:6408:16)
at webpack:///~/@angular/compiler/src/metadata_resolver.js:475:0 <- config/spec-bundle.js:19829:40
at Array.forEach (native)
at CompileMetadataResolver.getNgModuleMetadata (webpack:///~/@angular/compiler/src/metadata_resolver.js:457:0 <- config/spec-bundle.js:19811:54)
at JitCompiler._loadModules (webpack:///~/@angular/compiler/src/jit/compiler.js:165:25 <- config/spec-bundle.js:55462:64)
at JitCompiler._compileModuleAndAllComponents (webpack:///~/@angular/compiler/src/jit/compiler.js:144:25 <- config/spec-bundle.js:55441:52)
at JitCompiler.compileModuleAndAllComponentsSync (webpack:///~/@angular/compiler/src/jit/compiler.js:98:0 <- config/spec-bundle.js:55395:21)
at TestingCompilerImpl.compileModuleAndAllComponentsSync (webpack:///~/@angular/compiler/bundles/compiler-testing.umd.js:482:0 <- config/spec-bundle.js:78583:35)
at TestBed._initIfNeeded (webpack:///~/@angular/core/bundles/core-testing.umd.js:761:0 <- config/spec-bundle.js:26731:40)
at TestBed.createComponent (webpack:///~/@angular/core/bundles/core-testing.umd.js:844:0 <- config/spec-bundle.js:26814:18)
at Function.TestBed.createComponent (webpack:///~/@angular/core/bundles/core-testing.umd.js:673:0 <- config/spec-bundle.js:26643:33)
at Object.<anonymous> (webpack:///src/app/zzzz/yyyy/xxxx.component.spec.ts:20:0 <- config/spec-bundle.js:93231:37)
at ZoneDelegate.invoke (webpack:///~/zone.js/dist/zone.js:242:0 <- config/spec-bundle.js:73479:26)
at ProxyZoneSpec.onInvoke (webpack:///~/zone.js/dist/proxy.js:79:0 <- config/spec-bundle.js:73133:39)
at ZoneDelegate.invoke (webpack:///~/zone.js/dist/zone.js:241:0 <- config/spec-bundle.js:73478:32)
at Zone.run (webpack:///~/zone.js/dist/zone.js:113:0 <- config/spec-bundle.js:73350:43)
at Object.<anonymous> (webpack:///~/zone.js/dist/jasmine-patch.js:102:0 <- config/spec-bundle.js:72848:34)
at ZoneQueueRunner.jasmine.QueueRunner.ZoneQueueRunner.execute (webpack:///~/zone.js/dist/jasmine-patch.js:132:0 <- config/spec-bundle.js:72878:42)
at ZoneQueueRunner.jasmine.QueueRunner.ZoneQueueRunner.execute (webpack:///~/zone.js/dist/jasmine-patch.js:132:0 <- config/spec-bundle.js:72878:42)
at webpack:///~/zone.js/dist/jasmine-patch.js:129:91 <- config/spec-bundle.js:72875:130
at ZoneDelegate.invokeTask (webpack:///~/zone.js/dist/zone.js:275:0 <- config/spec-bundle.js:73512:35)
at Zone.runTask (webpack:///~/zone.js/dist/zone.js:151:0 <- config/spec-bundle.js:73388:47)
at drainMicroTaskQueue (webpack:///~/zone.js/dist/zone.js:433:0 <- config/spec-bundle.js:73670:35)

我们已按照新 Angular 约定的要求将所有这些模块导入到 app.module.ts 中。

import { FormsModule, ReactiveFormsModule } from '@angular/forms';
@NgModule({
bootstrap: [ AppComponent ],
declarations: [
...
],
imports: [ // import Angular's modules
...
BrowserModule,
FormsModule,
HttpModule,
ReactiveFormsModule,
... ],
providers: [ // expose our Services and Providers into Angular's dependency injection
ENV_PROVIDERS,
APP_PROVIDERS
],
schemas: [
CUSTOM_ELEMENTS_SCHEMA
]
})
export class AppModule {
constructor() {}
}

我们的testBed是这样设置的

TestBed.configureTestingModule({
imports: [ReactiveFormsModule, FormsModule],
declarations: [ FormGroup, XXXXComponent ], // declare the test component
});

fixture = TestBed.createComponent(XXXXComponent);
comp = fixture.componentInstance;
});

还有

testing.TestBed.initTestEnvironment(
browser.BrowserDynamicTestingModule,
browser.platformBrowserDynamicTesting()
);

我们安装了所有最新版本的软件包。

"@angular/common": "~2.4.3",
"@angular/compiler": "~2.4.3",
"@angular/core": "~2.4.3",
"@angular/forms": "~2.4.3",
"@angular/http": "~2.4.3",
"@angular/material": "2.0.0-beta.1",
"@angular/platform-browser": "~2.4.3",
"@angular/platform-browser-dynamic": "~2.4.3",
"@angular/platform-server": "~2.4.3",
"@angular/router": "~3.4.3",
"karma": "^1.2.0",
"karma-chrome-launcher": "^2.0.0",
"karma-coverage": "^1.1.1",
"karma-jasmine": "^1.0.2",
"karma-remap-coverage": "^0.1.4",
"karma-sourcemap-loader": "^0.3.7",
"karma-webpack": "2.0.1",
"webpack": "2.2.0",
"webpack-dev-middleware": "^1.9.0",
"webpack-dev-server": "2.2.0",
"webpack-dll-bundles-plugin": "^1.0.0-beta.5",
"webpack-md5-hash": "~0.0.5",
"webpack-merge": "~2.4.0"

感谢任何解决此问题的帮助。

最佳答案

错误出在你的测试台配置上

TestBed.configureTestingModule({
imports: [ReactiveFormsModule, FormsModule],
declarations: [ FormGroup, XXXXComponent ], // declare the test component
});

FormGroup 不是您代码的一部分,它属于 ReactiveFormsModule,因此您声明它是无效的。声明意味着 NgModule 对声明的内容拥有所有权。您也不应直接提供、导入或导出它。您可以通过导入 ReactiveFormsModule间接导入它,也可以通过导出 ReactiveFormsModule间接导出它。您不得申报。您不得提供。

因此将您的配置调用更改为

TestBed.configureTestingModule({
imports: [ReactiveFormsModule, FormsModule],
declarations: [XXXXComponent], // declare the test component
});

关于javascript - 错误 : Unexpected value 'FormGroup' declared by the module 'DynamicTestModule' ,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/41841275/

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