Mocking Angular Providers with ts-mockito

1_mock-provider.ts

const mockProvider = <T>(
  toMock: Type<T>,
  setupMock: (m: T) => void
): {
  provide: Type<T>;
  useFactory: () => T;
} => {
  const m = mock(toMock);
  setupMock(m);
  return { provide: toMock, useFactory: () => instance(m) };
};

2_mock-provider-usage.ts

TestBed.configureTestingModule({
    providers: [
        mockProvider(MyService, m =>
          when(m.someFunction()).thenReturn('some value')
        )
    ]
})