Explain how to use in tests

ng test keeps failing because of a null injection error, ie:

Error: StaticInjectorError(DynamicTestModule)[UserService -> NGXLogger]: 
  StaticInjectorError(Platform: core)[UserService -> NGXLogger]: 
    NullInjectorError: No provider for NGXLogger!

Please explain what to include in tests files to eliminate this error. It works fine outside the testing framework.

[atecey]

Good spot that was it thanks

[dbfannin]

@kathomas921, sounds like you’re not providing the logger when configuring your testing module. Can you verify that you are providing it? There also is also mock class for the logger. Try adding {provide: NGXLogger, useCLass: NGXLoggerMock} to your testing module providers (see below).

     TestBed.configureTestingModule({
       providers: [
         {provide: NGXLogger, useCLass: NGXLoggerMock},
         ...
       ],
       ...
     });