Method forRoot

packages/core/test/test_bed_spec.ts:1189–1194

()

      static multi = false;

      static forRoot() {
        return {
          ngModule: MyMod,
          providers: [{provide: TOKEN, multi: MyMod.multi, useValue: 'forRootValue'}],
        };
      }
    }

    beforeEach(() => (MyMod.multi = true));