TestBed

    
      interface TestBed {
  readonly platform: PlatformRef;  readonly platform: PlatformRef;
  readonly ngModule: Type<any> | Type<any>[];  readonly ngModule: Type<any> | Type<any>[];
  initTestEnvironment(ngModule: Type<any> | Type<any>[], platform: PlatformRef, options?: TestEnvironmentOptions | undefined): void;  initTestEnvironment(ngModule: Type<any> | Type<any>[], platform: PlatformRef, options?: TestEnvironmentOptions | undefined): void;
  resetTestEnvironment(): void;  resetTestEnvironment(): void;
  resetTestingModule(): TestBed;  resetTestingModule(): TestBed;
  configureCompiler(config: { providers?: any[] | undefined; useJit?: boolean | undefined; }): void;  configureCompiler(config: { providers?: any[] | undefined; useJit?: boolean | undefined; }): void;
  configureTestingModule(moduleDef: TestModuleMetadata): TestBed;  configureTestingModule(moduleDef: TestModuleMetadata): TestBed;
  compileComponents(): Promise<any>;  compileComponents(): Promise<any>;
  inject<T>(token: ProviderToken<T>, notFoundValue: undefined, options: InjectOptions & { optional?: false | undefined; }): T;  inject<T>(token: ProviderToken<T>, notFoundValue: null | undefined, options: InjectOptions): T | null;  inject<T>(token: ProviderToken<T>, notFoundValue?: T | undefined, options?: InjectOptions | undefined): T;  inject<T>(token: ProviderToken<T>, notFoundValue: undefined, options: InjectOptions & { optional?: false | undefined; }): T;  inject<T>(token: ProviderToken<T>, notFoundValue: null | undefined, options: InjectOptions): T | null;  inject<T>(token: ProviderToken<T>, notFoundValue?: T | undefined, options?: InjectOptions | undefined): T;
  runInInjectionContext<T>(fn: () => T): T;  runInInjectionContext<T>(fn: () => T): T;
  execute(tokens: any[], fn: Function, context?: any): any;  execute(tokens: any[], fn: Function, context?: any): any;
  overrideModule(ngModule: Type<any>, override: MetadataOverride<NgModule>): TestBed;  overrideModule(ngModule: Type<any>, override: MetadataOverride<NgModule>): TestBed;
  overrideComponent(component: Type<any>, override: MetadataOverride<Component>): TestBed;  overrideComponent(component: Type<any>, override: MetadataOverride<Component>): TestBed;
  overrideDirective(directive: Type<any>, override: MetadataOverride<Directive>): TestBed;  overrideDirective(directive: Type<any>, override: MetadataOverride<Directive>): TestBed;
  overridePipe(pipe: Type<any>, override: MetadataOverride<Pipe>): TestBed;  overridePipe(pipe: Type<any>, override: MetadataOverride<Pipe>): TestBed;
  overrideTemplate(component: Type<any>, template: string): TestBed;  overrideTemplate(component: Type<any>, template: string): TestBed;
  overrideProvider(token: any, provider: { useFactory: Function; deps: any[]; multi?: boolean | undefined; }): TestBed;  overrideProvider(token: any, provider: { useValue: any; multi?: boolean | undefined; }): TestBed;  overrideProvider(token: any, provider: { useFactory?: Function | undefined; useValue?: any; deps?: any[] | undefined; multi?: boolean | undefined; }): TestBed;  overrideProvider(token: any, provider: { useFactory: Function; deps: any[]; multi?: boolean | undefined; }): TestBed;  overrideProvider(token: any, provider: { useValue: any; multi?: boolean | undefined; }): TestBed;  overrideProvider(token: any, provider: { useFactory?: Function | undefined; useValue?: any; deps?: any[] | undefined; multi?: boolean | undefined; }): TestBed;
  overrideTemplateUsingTestingModule(component: Type<any>, template: string): TestBed;  overrideTemplateUsingTestingModule(component: Type<any>, template: string): TestBed;
  createComponent<T>(component: Type<T>, options?: TestComponentOptions | undefined): ComponentFixture<T>;  createComponent<T>(component: Type<T>, options?: TestComponentOptions | undefined): ComponentFixture<T>;
  flushEffects(): void;  flushEffects(): void;
  tick(): void;  tick(): void;
}