Question

使用-npm test在ionic 4中使用茉莉花运行单元测试用例时，我遇到此错误。

我还删除了node_modules文件夹，然后再次安装了它，但是问题仍然存在。我还对提供程序部分进行了一些更改，但没有任何效果。 ionic serve正常运行时没有任何错误。

根据我到目前为止的研发，似乎在角度8 TestBed.get(<ServiceName>)中的方法无效。

 Error: Arguments array must have arguments.
   Error: Arguments array must have arguments.
    at injectArgs (http://localhost:9876/_karma_webpack_/node_modules/@angular/core/fesm5/core.js:685:1)
    at http://localhost:9876/_karma_webpack_/node_modules/@angular/core/fesm5/core.js:11182:72
    at _callFactory (http://localhost:9876/_karma_webpack_/node_modules/@angular/core/fesm5/core.js:20295:1)
    at _createProviderInstance (http://localhost:9876/_karma_webpack_/node_modules/@angular/core/fesm5/core.js:20253:1)
    at resolveNgModuleDep (http://localhost:9876/_karma_webpack_/node_modules/@angular/core/fesm5/core.js:20228:1)
    at _createClass (http://localhost:9876/_karma_webpack_/node_modules/@angular/core/fesm5/core.js:20286:1)
    at _createProviderInstance (http://localhost:9876/_karma_webpack_/node_modules/@angular/core/fesm5/core.js:20250:1)
    at initNgModule (http://localhost:9876/_karma_webpack_/node_modules/@angular/core/fesm5/core.js:20183:1)
    at new NgModuleRef_ (http://localhost:9876/_karma_webpack_/node_modules/@angular/core/fesm5/core.js:20892:1)
    at createNgModuleRef (http://localhost:9876/_karma_webpack_/node_modules/@angular/core/fesm5/core.js:20881:1)

对此有任何帮助。

离子v4单元测试错误：参数数组必须具有参数

0 个答案: