import { Component } from '@angular/core' ; import { ComponentFixture , TestBed , waitForAsync } from '@angular/core/testing' ; import { TranslateModule , TranslateService } from '@ngx-translate/core' ; import { TranslateDirective } from './translate.directive' ; @ Component ( { template : ` <div jhiTranslate="test"></div> ` , } ) class TestTranslateDirectiveComponent { } describe ( 'TranslateDirective Tests' , ( ) => { let fixture ; let translateService ; beforeEach ( waitForAsync ( ( ) => { TestBed . configureTestingModule ( { imports : [ TranslateModule . forRoot ( ) ] , declarations : [ TranslateDirective , TestTranslateDirectiveComponent ] , } ) ; } ) ) ; beforeEach ( ( ) => { translateService = TestBed . inject ( TranslateService ) ; fixture = TestBed . createComponent ( TestTranslateDirectiveComponent ) ; } ) ; it ( 'should change HTML' , ( ) => { const spy = jest . spyOn ( translateService , 'get' ) ; fixture . detectChanges ( ) ; expect ( spy ) . toHaveBeenCalled ( ) ; } ) ; } ) ;