converter/src/app/error-message/error-message.component.spe...

53 lines
1.4 KiB
TypeScript

import {async, ComponentFixture, TestBed} from '@angular/core/testing';
import {ErrorMessageComponent} from './error-message.component';
import {Component, ViewChild} from '@angular/core';
import {Step} from '../step';
@Component({
template: '<app-error-message [step]="step"></app-error-message>'
})
class TestHostComponent {
public step: Step = new Step(42);
@ViewChild(ErrorMessageComponent)
public sutComponent: ErrorMessageComponent;
}
describe('ErrorMessageComponent', () => {
let testHostComponent: TestHostComponent;
let testHostFixture: ComponentFixture<TestHostComponent>;
beforeEach(async(() => {
TestBed.configureTestingModule({
declarations: [
ErrorMessageComponent,
TestHostComponent
]
})
.compileComponents();
}));
beforeEach(() => {
testHostFixture = TestBed.createComponent(TestHostComponent);
testHostComponent = testHostFixture.componentInstance;
testHostFixture.detectChanges();
});
it('should create', () => {
expect(testHostComponent.sutComponent).toBeTruthy();
});
it('should display an error message', () => {
// arrange
testHostComponent.step.error = true;
testHostComponent.step.message = 'This is an error message';
// act
testHostFixture.detectChanges();
// assert
expect(testHostComponent.sutComponent.step.error).toBeTruthy();
expect(testHostComponent.sutComponent.step.message).toEqual('This is an error message');
});
});