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How to use __simulateChange method in ng-mocks

Best JavaScript code snippet using ng-mocks

time-picker-control.component.spec.ts

Source:time-picker-control.component.spec.ts

...52        const {fixture, component} = setup()53        const changeSpy = jest.fn()54        component.registerOnChange(changeSpy)55        const matSelect = getSelect(fixture)56        matSelect.__simulateChange('12:00:00Z')57        expect(changeSpy).toHaveBeenCalledWith('12:00:00Z')58        expect(changeSpy).toHaveBeenCalledTimes(1)59        component.onDestroy.ngOnDestroy()60        matSelect.__simulateChange('14:00:00Z')61        expect(changeSpy).toHaveBeenCalledTimes(1)62      })63    })64    describe('.registerOnTouched', () => {65      it('registers change events to the select form control value changes, and unsubscribes when destroyed', () => {66        const {fixture, component} = setup()67        const touchedSpy = jest.fn()68        component.registerOnTouched(touchedSpy)69        const matSelect = getSelect(fixture)70        matSelect.__simulateChange('12:00:00Z')71        expect(touchedSpy).toHaveBeenCalledTimes(1)72        component.onDestroy.ngOnDestroy()73        matSelect.__simulateChange('14:00:00Z')74        expect(touchedSpy).toHaveBeenCalledTimes(1)75      })76    })77    describe('.setDisabledState', () => {78      it('disables the inner form control, does not emit status changes', () => {79        const {component} = setup()80        let statusChange = null81        const sub = component.control.statusChanges82          .subscribe((v) => statusChange = v)83        component.setDisabledState(true)84        expect(component.control.disabled).toBeTruthy()85        component.setDisabledState(false)86        expect(component.control.disabled).toBeFalsy()87        expect(statusChange).toBe(null)...

mock-control-value-accessor.ts

Source:mock-control-value-accessor.ts

...10  /**11   * @deprecated use isMockControlValueAccessor instead (removing in A13)12   * @see https://ng-mocks.sudo.eu/api/helpers/isMockControlValueAccessor13   */14  public __simulateChange(value: any): void;15  // istanbul ignore next16  public __simulateChange() {17    // nothing to do.18  }19  // istanbul ignore next20  /**21   * @deprecated use isMockControlValueAccessor instead (removing in A13)22   * @see https://ng-mocks.sudo.eu/api/helpers/isMockControlValueAccessor23   */24  public __simulateTouch() {25    // nothing to do.26  }27  // istanbul ignore next28  /**29   * @deprecated use isMockValidator instead (removing in A13)30   * @see https://ng-mocks.sudo.eu/api/helpers/isMockValidator31   */32  public __simulateValidatorChange() {33    // nothing to do.34  }35}36/**37 * MockControlValueAccessor exposes access to a mock ControlValueAccessor.38 * It should be used in a combination with isMockControlValueAccessor.39 *40 * @see https://ng-mocks.sudo.eu/api/helpers/isMockControlValueAccessor41 */42export interface MockControlValueAccessor {43  /**44   * It simulates an external change of the value.45   * Please consider usage of ngMocks.change().46   *47   * @see https://ng-mocks.sudo.eu/extra/mock-form-controls48   * @see https://ng-mocks.sudo.eu/api/ngMocks/change49   */50  __simulateChange(value: any): void;51  /**52   * It simulates an external touch.53   * Please consider usage of ngMocks.touch().54   *55   * @see https://ng-mocks.sudo.eu/extra/mock-form-controls56   * @see https://ng-mocks.sudo.eu/api/ngMocks/touch57   */58  __simulateTouch(): void;59}60/**61 * MockValidator exposes access to a mock Validator.62 * It should be used in a combination with isMockValidator.63 *64 * @see https://ng-mocks.sudo.eu/api/helpers/isMockValidator...

Using AI Code Generation

1import { __simulateChange } from 'ng-mocks';2describe('TestComponent', () => {3  let component: TestComponent;4  let fixture: ComponentFixture<TestComponent>;5  beforeEach(async(() => {6    TestBed.configureTestingModule({7      imports: [FormsModule]8    }).compileComponents();9  }));10  beforeEach(() => {11    fixture = TestBed.createComponent(TestComponent);12    component = fixture.componentInstance;13    fixture.detectChanges();14  });15  it('should test input', () => {16    const input = fixture.debugElement.query(By.css('input'));17    __simulateChange(input.nativeElement, 'test');18    fixture.detectChanges();19    expect(component.test).toEqual('test');20  });21});22import { Component, OnInit } from '@angular/core';23@Component({24})25export class TestComponent implements OnInit {26  test: string;27  constructor() {}28  ngOnInit() {}29}30<input type="text" [(ngModel)]="test" />

Using AI Code Generation

1import { __simulateChange } from 'ng-mocks';2import { ComponentFixture, TestBed } from '@angular/core/testing';3import { AppComponent } from './app.component';4import { By } from '@angular/platform-browser';5describe('AppComponent', () => {6  let fixture: ComponentFixture<AppComponent>;7  let component: AppComponent;8  beforeEach(() => {9    TestBed.configureTestingModule({10    });11    fixture = TestBed.createComponent(AppComponent);12    component = fixture.componentInstance;13  });14  it('should update value', () => {15    const input = fixture.debugElement.query(By.css('input'));16    __simulateChange(input, 'test');17    expect(component.value).toEqual('test');18  });19});

Using AI Code Generation

1import { __simulateChange } from 'ng-mocks';2describe('MyComponent', () => {3  let component: MyComponent;4  let fixture: ComponentFixture<MyComponent>;5  beforeEach(async(() => {6    TestBed.configureTestingModule({7      imports: [FormsModule],8    }).compileComponents();9  }));10  beforeEach(() => {11    fixture = TestBed.createComponent(MyComponent);12    component = fixture.componentInstance;13    fixture.detectChanges();14  });15  it('should create', () => {16    expect(component).toBeTruthy();17  });18  it('should set the value of the input', () => {19    const input = fixture.debugElement.query(By.css('input'));20    __simulateChange(input, 'newValue');21    expect(component.myValue).toEqual('newValue');22  });23});24import { Component, OnInit } from '@angular/core';25@Component({26    <input type="text" [(ngModel)]="myValue" />27})28export class MyComponent implements OnInit {29  myValue = '';30  constructor() {}31  ngOnInit(): void {}32}

Using AI Code Generation

1import { __simulateChange } from 'ng-mocks';2describe('AppComponent', () => {3  let component: AppComponent;4  let fixture: ComponentFixture<AppComponent>;5  beforeEach(async(() => {6    TestBed.configureTestingModule({7      imports: [FormsModule]8    })9    .compileComponents();10  }));11  beforeEach(() => {12    fixture = TestBed.createComponent(AppComponent);13    component = fixture.componentInstance;14    fixture.detectChanges();15  });16  it('should create', () => {17    expect(component).toBeTruthy();18  });19  it('should have a button', () => {20    const button = fixture.debugElement.query(By.css('button'));21    expect(button).toBeTruthy();22  });23  it('should have a input', () => {24    const input = fixture.debugElement.query(By.css('input'));25    expect(input).toBeTruthy();26  });27  it('should have a input with value', () => {28    const input = fixture.debugElement.query(By.css('input'));29    expect(input.nativeElement.value).toBe('1');30  });31  it('should have a input with value 2', () => {32    const input = fixture.debugElement.query(By.css('input'));33    __simulateChange(input.nativeElement, '2');34    fixture.detectChanges();35    expect(input.nativeElement.value).toBe('2');36  });37});

Using AI Code Generation

1  const element = fixture.debugElement.query(By.css('input'));2  element.triggerEventHandler('change', { target: { value: 'test' } });3  fixture.detectChanges();4  const element = fixture.debugElement.query(By.css('input'));5  element.triggerEventHandler('change', { target: { value: 'test' } });6  fixture.detectChanges();7  const element = fixture.debugElement.query(By.css('input'));8  element.triggerEventHandler('change', { target: { value: 'test' } });9  fixture.detectChanges();10  const element = fixture.debugElement.query(By.css('input'));11  element.triggerEventHandler('change', { target: { value: 'test' } });12  fixture.detectChanges();13  const element = fixture.debugElement.query(By.css('input'));14  element.triggerEventHandler('change', { target: { value: 'test' } });15  fixture.detectChanges();16  const element = fixture.debugElement.query(By.css('input'));17  element.triggerEventHandler('change', { target: { value: 'test' } });18  fixture.detectChanges();19  const element = fixture.debugElement.query(By.css('input'));20  element.triggerEventHandler('change', { target: { value: 'test' } });21  fixture.detectChanges();22  const element = fixture.debugElement.query(By.css('input'));23  element.triggerEventHandler('change', { target: { value: 'test' } });24  fixture.detectChanges();25  const element = fixture.debugElement.query(By.css('input'));26  element.triggerEventHandler('change', { target: { value: 'test' } });27  fixture.detectChanges();

Using AI Code Generation

1const element = fixture.debugElement.query(By.css('input'));2const input = element.nativeElement;3input.value = 'test';4input.dispatchEvent(new Event('input'));5export class MockNgModel {6    public value: any;7    public control: any;8    public __simulateChange(value: any) {9        this.value = value;10    }11}12export function MockNgModelFactory() {13    return new MockNgModel();14}15describe('MockNgModelFactory', () => {16    beforeEach(() => {17        TestBed.configureTestingModule({18            imports: [FormsModule],19                { provide: NgModel, useFactory: MockNgModelFactory },20        });21        fixture = TestBed.createComponent(TestComponent);22        component = fixture.componentInstance;23        fixture.detectChanges();24    });25    it('should set value from outside', () => {26        component.testValue = 'test';27        fixture.detectChanges();28        expect(component.testValue).toEqual('test');29    });30});

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