具有 ngx-logger 依赖项的 angular 6 单元测试

Question

Is there a way to properly test classes that have ngx-logger as dependency in angular (Assuming we may be using some known framework for testing, like jasmine)? So far there isn't a resource that can help me to provide a use case where the ngx-logger was mocked or provided in unit tests for classes that have this dependency.

Answer 1

正如评论中提到的，我在这里找到了可能会遇到此问题的任何人的解决方案。

Answer 2

As explained in NGXLogger docs , use LoggerTestingModule .

First import LoggerTestingModule in your AppModule .

Then provide NGXLogger in tests using NGXLoggerMock :

TestBed.configureTestingModule({
  imports: [
    { provide: NGXLogger, useValue: NGXLoggerMock },
  ],
  ...
});