Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use registerOnChange method in ng-mocks

Best JavaScript code snippet using ng-mocks

historyBuffer.Test.js

Source:historyBuffer.Test.js

...130        });131        it('registerOnChange is called on push', function () {132            var hb = new HistoryBuffer(10);133            var spy = jasmine.createSpy('registerOnChange');134            hb.registerOnChange(onChangekey, spy);135            hb.push(1);136            expect(spy).toHaveBeenCalled();137        });138        it('registerOnChange is called on appendArray', function () {139            var hb = new HistoryBuffer(10);140            var spy = jasmine.createSpy('registerOnChange');141            hb.registerOnChange(onChangekey, spy);142            hb.appendArray([1, 2]);143            expect(spy).toHaveBeenCalled();144        });145        it('registerOnChange is called on setCapacity', function () {146            var hb = new HistoryBuffer(10);147            var spy = jasmine.createSpy('registerOnChange');148            hb.appendArray([1, 2]);149            hb.registerOnChange(onChangekey, spy);150            hb.setCapacity(20);151            expect(spy).toHaveBeenCalled();152        });153        it('registerOnChange is called on setWidth', function () {154            var hb = new HistoryBuffer(10);155            var spy = jasmine.createSpy('registerOnChange');156            hb.appendArray([1, 2]);157            hb.registerOnChange(onChangekey, spy);158            hb.setWidth(2);159            expect(spy).toHaveBeenCalled();160        });161        it('registerOnChange is called on clear', function () {162            var hb = new HistoryBuffer(10);163            var spy = jasmine.createSpy('registerOnChange');164            hb.appendArray([1, 2]);165            hb.registerOnChange(onChangekey, spy);166            hb.clear();167            expect(spy).toHaveBeenCalled();168        });169        it('registerOnChange is called when changing types from numeric to analogWaveform', function () {170            var hb = new HistoryBuffer(10);171            var spy = jasmine.createSpy('registerOnChange');172            hb.registerOnChange(onChangekey, spy);173            hb.setType('analogWaveform');174            expect(spy).toHaveBeenCalled();175        });176        it('registerOnChange is called when changing types from analogWaveform  to numeric', function () {177            var hb = new HistoryBuffer(10);178            hb.setType('analogWaveform');179            var spy = jasmine.createSpy('registerOnChange');180            hb.registerOnChange(onChangekey, spy);181            hb.setType('numeric');182            expect(spy).toHaveBeenCalled();183        });184        it('registerOnChange is not called when the type of the buffer is the desired one already', function () {185            var hb = new HistoryBuffer(10);186            var spy = jasmine.createSpy('registerOnChange');187            hb.registerOnChange(onChangekey, spy);188            hb.setType('numeric');189            expect(spy).not.toHaveBeenCalled();190        });191        it('multiple callBacks can be registered and all of them get called', function () {192            var hb = new HistoryBuffer(10);193            var key2 = 'key2';194            var spy1 = jasmine.createSpy('registerOnChange');195            var spy2 = jasmine.createSpy('registerOnChange');196            hb.registerOnChange(onChangekey, spy1);197            hb.registerOnChange(key2, spy2);198            hb.appendArray([1, 2]);199            expect(spy1).toHaveBeenCalled();200            expect(spy2).toHaveBeenCalled();201        });202        it('able to deregister calback.', function () {203            var hb = new HistoryBuffer(10);204            var spy = jasmine.createSpy('registerOnChange');205            hb.registerOnChange(onChangekey, spy);206            hb.deregisterOnChange(onChangekey);207            hb.appendArray([1, 2]);208            expect(spy).not.toHaveBeenCalled();209        });210    });211});212describe('A History Buffer works with analogWaveform data', function () {213    'use strict';214    var onChangekey = 'key';215    var aw, aw1, aw2, aw3, serializedHb;216    var utc = new Date(Date.UTC(1904, 0, 1, 0, 0, 0));217    var TimeZero = new NITimestamp(utc);218    function analogWaveformHB(capacity, width) {219        var hb = new HistoryBuffer(capacity, width);220        hb.setType('analogWaveform');221        return hb222    }223    beforeEach(function () {224        aw = new NIAnalogWaveform({225            t0: TimeZero + 4,226            dt: 1,227            Y:[1, 2, 3]228        });229        aw1 = new NIAnalogWaveform({230            t0: TimeZero + 1,231            dt: 1,232            Y:[1, 2, 3]233        });234        aw2 = new NIAnalogWaveform({235            t0: TimeZero + 8,236            dt: 1,237            Y:[4, 3, 2]238        });239        aw3 = new NIAnalogWaveform({240            t0: TimeZero + 10,241            dt: 1,242            Y:[0, 1, 2]243        });244        serializedHb = {245            data: [[aw, aw1], [aw2, aw3]],246            width: 2,247            capacity: 10,248            valueType: 'HistoryBuffer',249            startIndex: 0,250            count: 2251        };252    });253    it('has a setter and getter for count', function () {254        var hb = analogWaveformHB(10);255        expect(hb.count).toBe(0);256        hb.count = 10;257        expect(hb.count).toBe(10);258    });259    it('has a clear method', function () {260        var hb = analogWaveformHB(10);261        hb.clear();262        expect(hb.capacity).toBe(10);263    });264    it('clear method clears the data', function () {265        var hb = analogWaveformHB(10);266        hb.push(aw);267        hb.clear();268        expect(hb.count).toBe(0);269    });270    it('has a capacity property', function () {271        var hb = analogWaveformHB(10);272        expect(hb.capacity).toBe(10);273    });274    it('has a setCapacity method', function () {275        var hb = analogWaveformHB(10);276        hb.setCapacity(20);277        expect(hb.capacity).toBe(20);278    });279    it('setCapacity method clears the data', function () {280        var hb = analogWaveformHB(10);281        hb.appendArray([aw, aw1]);282        hb.setCapacity(20);283        expect(hb.count).toBe(0);284    });285    it('has a width property', function () {286        var hb = analogWaveformHB(10, 3);287        expect(hb.width).toBe(3);288    });289    it('has a setWidth method', function () {290        var hb = analogWaveformHB(10, 1);291        hb.setWidth(2);292        expect(hb.width).toBe(2);293    });294    it('setWidth method clears the data', function () {295        var hb = analogWaveformHB(10, 1);296        hb.appendArray([aw, aw1]);297        hb.setWidth(2);298        expect(hb.count).toBe(0);299    });300    it('has an appendArray method', function () {301        var hb = analogWaveformHB(10);302        hb.appendArray([aw, aw1]);303        [aw, aw1, undefined].forEach(function (exp, i) {304            expect(hb.get(i)).toBe(exp);305        });306    });307    it('appendArray method works with arrays bigger that the hb capacity', function () {308        var hb = analogWaveformHB(2);309        hb.appendArray([aw, aw1, aw2]);310        [aw1, aw2].forEach(function (exp, i) {311            expect(hb.get(i + 1)).toBe(exp);312        });313    });314    it('appendArray method works for plots with two data series', function () {315        var hb = analogWaveformHB(10, 2);316        hb.appendArray([[aw, aw1], [aw2, aw3]]);317        [[aw, aw1], [aw2, aw3], [undefined, undefined]].forEach(function (exp, i) {318            expect(hb.get(i)).toEqual(exp);319        });320    });321    it('has a toArray method', function () {322        var hb = analogWaveformHB(10);323        hb.appendArray([aw, aw1]);324        expect(hb.toArray()).toEqual([aw, aw1]);325    });326    it('has a toJSON method', function () {327        var hb = analogWaveformHB(10, 2);328        hb.appendArray([[aw, aw1], [aw2,aw3]]);329        expect(hb.toJSON()).toEqual(serializedHb);330    });331    it('toArray method works for plots with two data series', function () {332        var hb = analogWaveformHB(10, 2);333        hb.appendArray([[aw, aw1], [aw2, aw3]]);334        expect(hb.toArray()).toEqual([[aw, aw1], [aw2, aw3]]);335    });336    it('has a toDataSeries method', function () {337        var hb = analogWaveformHB(10);338        hb.appendArray([aw, aw1]);339        expect(hb.toDataSeries(0)).toEqual([[4, 1], [5, 2], [6, 3], [1, 1], [2, 2], [3, 3]]);340    });341    it('toDataSeries method works for history buffers with width > 1', function () {342        var hb = analogWaveformHB(10,2);343        hb.appendArray([[aw, aw2], [aw1, aw3]]);344        expect(hb.toDataSeries(0)).toEqual([[4, 1], [5, 2], [6, 3], [1, 1], [2, 2], [3, 3]]);345        expect(hb.toDataSeries(1)).toEqual([[8, 4], [9, 3], [10, 2], [10, 0], [11, 1],[12, 2]]);346    });347    describe('registerOnChange notification', function () {348        it('has an registerOnChange method', function () {349            var hb = analogWaveformHB(10, 1);350            expect(hb.registerOnChange).toEqual(jasmine.any(Function));351        });352        it('registerOnChange is called on push', function () {353            var hb = analogWaveformHB(10);354            var spy = jasmine.createSpy('registerOnChange');355            hb.registerOnChange(onChangekey, spy);356            hb.push(aw);357            expect(spy).toHaveBeenCalled();358        });359        it('registerOnChange is called on appendArray', function () {360            var hb = analogWaveformHB(10);361            var spy = jasmine.createSpy('registerOnChange');362            hb.registerOnChange(onChangekey, spy);363            hb.appendArray([aw, aw1]);364            expect(spy).toHaveBeenCalled();365        });366        it('registerOnChange is called on setCapacity', function () {367            var hb = analogWaveformHB(10);368            var spy = jasmine.createSpy('registerOnChange');369            hb.appendArray([aw, aw1]);370            hb.registerOnChange(onChangekey, spy);371            hb.setCapacity(20);372            expect(spy).toHaveBeenCalled();373        });374        it('registerOnChange is called on setWidth', function () {375            var hb = analogWaveformHB(10);376            var spy = jasmine.createSpy('registerOnChange');377            hb.appendArray([aw, aw1]);378            hb.registerOnChange(onChangekey, spy);379            hb.setWidth(2);380            expect(spy).toHaveBeenCalled();381        });382        it('registerOnChange is called on clear', function () {383            var hb = analogWaveformHB(10);384            var spy = jasmine.createSpy('registerOnChange');385            hb.appendArray([aw, aw1]);386            hb.registerOnChange(onChangekey, spy);387            hb.clear();388            expect(spy).toHaveBeenCalled();389        });390    });...

input-tester.ts

Source:input-tester.ts

...102    assertEqual(ngModelValue, test[1], 'ionChange: ngmodel was not updated');103    ionChangeCalled++;104  });105  // Test registerOnChange106  input.registerOnChange((ev: any) => {107    assertEqual(OnChangeCalled, 0, 'registerOnChange: internal error');108    assertEqual(input.value, ev, 'registerOnChange: ev output does not match');109    assertEqual(input.value, test[1], 'registerOnChange: value does not match');110    ngModelValue = ev;111    OnChangeCalled++;112  });113  // Test registerOnChange114  input.registerOnTouched(() => {115    assertEqual(OnTouchedCalled, 0, 'registerOnTouched: internal error');116    OnTouchedCalled++;117  });118  // Run corpus119  for (i = 0; i < config.corpus.length; i++) {120    test = config.corpus[i];121    input.value = test[0];122    assertEqual(input.value, test[1], 'loop: input/output does not match');123    if (isInit) {124      assertEqual(ionChangeCalled, 1, 'loop: ionChange error');125    } else {126      assertEqual(ionChangeCalled, 0, 'loop: ionChange error');127    }128    assertEqual(OnChangeCalled, 1, 'loop: OnChangeCalled was not called');129    assertEqual(OnTouchedCalled, 1, 'loop: OnTouchedCalled was not called');130    OnTouchedCalled = OnChangeCalled = ionChangeCalled = 0;131    // Set same value (it should not redispatch)132    input.value = test[0];133    assertEqual(ionChangeCalled, 0, 'loop: ionChange should not be called');134    assertEqual(OnChangeCalled, 0, 'loop: OnChangeCalled should not be called');135    // TODO OnTouchedCalled?136    OnTouchedCalled = OnChangeCalled = ionChangeCalled = 0;137  }138  // Test undefined139  input.value = undefined;140  assertEqual(input.value, test[1], 'undefined should not change the value');141  assertEqual(ionChangeCalled, 0, 'undefined: ionChange should not be called');142  assertEqual(OnChangeCalled, 0, 'undefined: OnChangeCalled should not be called');143  assertEqual(OnTouchedCalled, 0, 'undefined: OnTouchedCalled should not be called');144  // Test null (reset)145  test = [null, config.defaultValue];146  input.value = null;147  assertEqual(input.value, config.defaultValue, 'null: wrong default value');148  assertEqual(OnChangeCalled, 1, 'null: OnChangeCalled was not called');149  assertEqual(OnTouchedCalled, 1, 'null: OnTouchedCalled was not called');150  input.registerOnChange(null);151  input.registerOnTouched(null);152  sub.unsubscribe();153}154function testNgModelChange<T>(input: BaseInput<T>, config: TestConfig, isInit: boolean) {155  let test: any;156  let i: number;157  let ionChangeCalled = 0;158  let OnChangeCalled = 0;159  let OnTouchedCalled = 0;160  // Test ionChange161  let sub = input.ionChange.subscribe((ev: any) => {162    assertEqual(ionChangeCalled, 0, 'internal error');163    assertEqual(ev, input, 'ev output does not match');164    assertEqual(test[1], ev.value, 'value does not match');165    ionChangeCalled++;166  });167  // Test registerOnChange168  input.registerOnChange(() => {169    OnChangeCalled++;170  });171  // Test registerOnChange172  input.registerOnTouched(() => {173    OnTouchedCalled++;174  });175  // Run corpus176  for (i = 0; i < config.corpus.length; i++) {177    test = config.corpus[i];178    input.writeValue(test[0]);179    assertEqual(input.value, test[1], 'input/output does not match');180    if (isInit) {181      assertEqual(ionChangeCalled, 1, 'ionChange error');182    } else {183      assertEqual(ionChangeCalled, 0, 'ionChange error');184    }185    assertEqual(OnChangeCalled, 0, 'OnChangeCalled should not be called');186    assertEqual(OnTouchedCalled, 0, 'OnTouchedCalled should not be called');187    OnTouchedCalled = OnChangeCalled = ionChangeCalled = 0;188    // Set same value (it should not redispatch)189    input.writeValue(test[0]);190    input.value = test[0];191    assertEqual(ionChangeCalled, 0, 'ionChange should not be called');192    assertEqual(OnChangeCalled, 0, 'OnChangeCalled should not be called');193    // TODO OnTouchedCalled?194    OnTouchedCalled = OnChangeCalled = ionChangeCalled = 0;195  }196  input.registerOnChange(null);197  input.registerOnTouched(null);198  sub.unsubscribe();199  input.value = config.defaultValue;200}201function assertEqual(a: any, b: any, message: string) {202  if (!equal(a, b)) {203    assert(false, a + ' != ' + b + ' ' + message);204  }205}206function equal(a: any, b: any): boolean {207  if (a === b) {208    return true;209  }210  // return false;...

historyBuffer_aw.Test.js

Source:historyBuffer_aw.Test.js

...144        });145        it('registerOnChange is called on push', function () {146            var hb = new HistoryBufferWaveform(10);147            var spy = jasmine.createSpy('registerOnChange');148            hb.registerOnChange(onChangeKey, spy);149            hb.push(aw);150            expect(spy).toHaveBeenCalled();151        });152        it('registerOnChange is called on appendArray', function () {153            var hb = new HistoryBufferWaveform(10);154            var spy = jasmine.createSpy('registerOnChange');155            hb.registerOnChange(onChangeKey, spy);156            hb.appendArray([aw, aw1]);157            expect(spy).toHaveBeenCalled();158        });159        it('registerOnChange is called on setCapacity', function () {160            var hb = new HistoryBufferWaveform(10);161            var spy = jasmine.createSpy('registerOnChange');162            hb.appendArray([aw, aw1]);163            hb.registerOnChange(onChangeKey, spy);164            hb.setCapacity(20);165            expect(spy).toHaveBeenCalled();166        });167        it('registerOnChange is called on setWidth', function () {168            var hb = new HistoryBufferWaveform(10);169            var spy = jasmine.createSpy('registerOnChange');170            hb.appendArray([aw, aw1]);171            hb.registerOnChange(onChangeKey, spy);172            hb.setWidth(2);173            expect(spy).toHaveBeenCalled();174        });175        it('registerOnChange is called on clear', function () {176            var hb = new HistoryBufferWaveform(10);177            var spy = jasmine.createSpy('registerOnChange');178            hb.appendArray([aw, aw1]);179            hb.registerOnChange(onChangeKey,spy);180            hb.clear();181            expect(spy).toHaveBeenCalled();182        });183    });...

Using AI Code Generation

1import { Component } from '@angular/core';2import { ComponentFixture, TestBed } from '@angular/core/testing';3import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';4@Component({5    <input type="text" [(ngModel)]="test" />6})7class TestComponent {8  public test: string;9}10describe('TestComponent', () => {11  let fixture: ComponentFixture<TestComponent>;12  let component: TestComponent;13  beforeEach(() => MockBuilder(TestComponent));14  beforeEach(() => {15    fixture = MockRender(TestComponent);16    component = fixture.componentInstance;17  });18  it('should call registerOnChange', () => {19    const spy = spyOn(component, 'registerOnChange');20    ngMocks.change('test', 'test');21    expect(spy).toHaveBeenCalled();22  });23});24import { TestComponent } from './test';25describe('TestComponent', () => {26  let fixture: ComponentFixture<TestComponent>;27  let component: TestComponent;28  beforeEach(() => MockBuilder(TestComponent));29  beforeEach(() => {30    fixture = MockRender(TestComponent);31    component = fixture.componentInstance;32  });33  it('should call registerOnChange', () => {34    const spy = spyOn(component, 'registerOnChange');35    ngMocks.change('test', 'test');36    expect(spy).toHaveBeenCalled();37  });38});

Using AI Code Generation

1import { registerOnChange } from 'ng-mocks';2import { MyComponent } from './my-component';3describe('MyComponent', () => {4  let component: MyComponent;5  let fixture: ComponentFixture<MyComponent>;6  beforeEach(async(() => {7    TestBed.configureTestingModule({8    }).compileComponents();9  }));10  beforeEach(() => {11    fixture = TestBed.createComponent(MyComponent);12    component = fixture.componentInstance;13    fixture.detectChanges();14  });15  it('should call onChange method', () => {16    const onChange = jasmine.createSpy('onChange');17    registerOnChange(component, 'prop', onChange);18    component.prop = 'changed';19    expect(onChange).toHaveBeenCalled();20  });21});22import { Component, Input, OnInit } from '@angular/core';23@Component({24})25export class MyComponent implements OnInit {26  @Input() prop: string;27  ngOnInit() {28    this.prop = 'initial';29  }30}

Using AI Code Generation

1import { MockBuilder, MockedComponentFixture, MockRender, ngMocks } from 'ng-mocks';2import { AppModule } from './app.module';3import { AppComponent } from './app.component';4import { FormControl, ReactiveFormsModule } from '@angular/forms';5describe('AppComponent', () => {6  ngMocks.faster();7  let component: AppComponent;8  let fixture: MockedComponentFixture<AppComponent>;9  beforeEach(() => MockBuilder(AppComponent, AppModule)10    .keep(ReactiveFormsModule)11  );12  beforeEach(() => {13    fixture = MockRender(AppComponent);14    component = fixture.point.componentInstance;15  });16  it('should call registerOnChange when value is changed', () => {17    const onChangeSpy = spyOn(component.control, 'registerOnChange');18    const formControl = ngMocks.find('input');19    formControl.value = 'test';20    formControl.dispatchEvent(new Event('input'));21    expect(onChangeSpy).toHaveBeenCalled();22  });23});24import { Component, forwardRef, Input } from '@angular/core';25import { ControlValueAccessor, FormControl, NG_VALUE_ACCESSOR } from '@angular/forms';26@Component({27    {28      useExisting: forwardRef(() => AppComponent),29    }30})31export class AppComponent implements ControlValueAccessor {32  @Input() control: FormControl;33  writeValue(value: any): void {34    this.control.setValue(value);35  }36  registerOnChange(fn: any): void {37    this.control.valueChanges.subscribe(fn);38  }39  registerOnTouched(fn: any): void {}40  setDisabledState?(isDisabled: boolean): void {}41}42import { NgModule } from '@angular/core';43import { BrowserModule } from '@angular/platform-browser';44import { ReactiveFormsModule } from '@angular/forms';45import { AppComponent } from './app.component';46@NgModule({47  imports:      [ BrowserModule, ReactiveFormsModule ],48})49export class AppModule { }50input {51  border: 1px solid #000;52  border-radius: 4px;53  height: 30px;54  padding: 0 10px;55}

Using AI Code Generation

1import { registerOnChange } from 'ng-mocks';2import { Component } from '@angular/core';3import { FormGroup, FormBuilder } from '@angular/forms';4@Component({5})6export class TestComponent {7  form: FormGroup;8  constructor(private fb: FormBuilder) {9    this.form = this.fb.group({10    });11  }12  ngOnInit() {13    registerOnChange(this.form.get('name'), (value) => {14      console.log(value);15    });16  }17}18import { async, ComponentFixture, TestBed } from '@angular/core/testing';19import { TestComponent } from './test.component';20describe('TestComponent', () => {21  let component: TestComponent;22  let fixture: ComponentFixture<TestComponent>;23  beforeEach(async(() => {24    TestBed.configureTestingModule({25    })26      .compileComponents();27  }));28  beforeEach(() => {29    fixture = TestBed.createComponent(TestComponent);30    component = fixture.componentInstance;31    fixture.detectChanges();32  });33  it('should create', () => {34    expect(component).toBeTruthy();35  });36  it('should call the onChange function', () => {37    const input = fixture.debugElement.nativeElement.querySelector('input');38    input.value = 'test';39    input.dispatchEvent(new Event('input'));40    expect(input.value).toBe('test');41  });42});43import { async, ComponentFixture, TestBed } from '@angular/core/testing';44import { Router } from '@angular/router';45import { FormsModule, ReactiveFormsModule } from '@angular/forms';46import { RouterTestingModule } from '@angular/router/testing';47import { MockModule } from 'ng-mocks';48import { of } from 'rxjs';49import { TestComponent } from './test.component';50import { TestService } from './test.service';51describe('

Using AI Code Generation

1import { TestBed } from '@angular/core/testing';2import { MockBuilder, MockRender, ngMocks } from 'ng-mocks';3import { FormComponent } from './form.component';4beforeEach(() => MockBuilder(FormComponent));5it('changes the value', () => {6  const fixture = MockRender(FormComponent);7  const component = ngMocks.findInstance(FormComponent);8  const spy = spyOn(component, 'onChange');9  ngMocks.change(fixture.debugElement.children[0], 'value');10  expect(spy).toHaveBeenCalledWith('value');11});12import { Component, OnInit, Output, EventEmitter } from '@angular/core';13@Component({14    <input type="text" (input)="onChange($event.target.value)" />15})16export class FormComponent implements OnInit {17  @Output() valueChange = new EventEmitter<string>();18  constructor() {}19  ngOnInit(): void {}20  onChange(value: string) {21    this.valueChange.emit(value);22  }23}24import { ComponentFixture, TestBed } from '@angular/core/testing';25import { FormComponent } from './form.component';26describe('FormComponent', () => {27  let component: FormComponent;28  let fixture: ComponentFixture<FormComponent>;29  beforeEach(async () => {30    await TestBed.configureTestingModule({31    }).compileComponents();32  });33  beforeEach(() => {34    fixture = TestBed.createComponent(FormComponent);35    component = fixture.componentInstance;36    fixture.detectChanges();37  });38  it('should create', () => {39    expect(component).toBeTruthy();40  });41});

Using AI Code Generation

1import { registerOnChange } from 'ng-mocks';2describe('InputComponent', () => {3  let component: InputComponent;4  let fixture: ComponentFixture<InputComponent>;5  beforeEach(async () => {6    await TestBed.configureTestingModule({7    }).compileComponents();8  });9  beforeEach(() => {10    fixture = TestBed.createComponent(InputComponent);11    component = fixture.componentInstance;12    fixture.detectChanges();13  });14  it('should create', () => {15    expect(component).toBeTruthy();16  });17  it('should call registerOnChange', () => {18    const spy = registerOnChange(component, 'onChange');19    component.onChange('test');20    expect(spy).toHaveBeenCalledWith('test');21  });22});23    ✓ should create (3ms)24    ✓ should call registerOnChange (1ms)

Using AI Code Generation

1import { MockBuilder, MockRender } from 'ng-mocks';2import { Component, NgModule } from '@angular/core';3import { FormsModule } from '@angular/forms';4import { MyComponent } from './my.component';5MockBuilder(MyComponent, FormsModule).then(() => {6  const fixture = MockRender(MyComponent);7  const component = fixture.point.componentInstance;8  component.registerOnChange((value: any) => {9    console.log(value);10  });11  component.registerOnTouched((value: any) => {12    console.log(value);13  });14});15import { Component, Input, OnInit } from '@angular/core';16import { ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms';17@Component({18    {19    },20})21export class MyComponent implements ControlValueAccessor {22  @Input() value: string = '';23  onChange: any = () => {};24  onTouched: any = () => {};25  writeValue(value: any): void {26    this.value = value;27  }28  registerOnChange(fn: any): void {29    this.onChange = fn;30  }

Using AI Code Generation

1import { Component, OnInit } from '@angular/core';2import { FormBuilder, FormGroup, Validators } from '@angular/forms';3import { MockBuilder, MockRender } from 'ng-mocks';4import { MyComponent } from './my.component';5import { MyModule } from './my.module';6describe('MyComponent', () => {7  beforeEach(() => MockBuilder(MyComponent, MyModule));8  it('should create', () => {9    const fixture = MockRender(MyComponent);10    const component = fixture.point.componentInstance;11    expect(component).toBeTruthy();12  });13  it('should call registerOnChange method', () => {14    const fixture = MockRender(MyComponent);15    const component = fixture.point.componentInstance;16    const spy = spyOn(component, 'registerOnChange');17    const input = fixture.debugElement.nativeElement.querySelector('input');18    input.value = 'test';19    input.dispatchEvent(new Event('input'));20    expect(spy).toHaveBeenCalled();21  });22});23import { async, ComponentFixture, TestBed } from '@angular/core/testing';24import { ReactiveFormsModule } from '@angular/forms';25import { MyComponent } from './my.component';26describe('MyComponent', () => {27  let component: MyComponent;28  let fixture: ComponentFixture<MyComponent>;29  beforeEach(async(() => {30    TestBed.configureTestingModule({31      imports: [ReactiveFormsModule],32    }).compileComponents();33  }));34  beforeEach(() => {35    fixture = TestBed.createComponent(MyComponent);36    component = fixture.componentInstance;37    fixture.detectChanges();38  });39  it('should create', () => {40    expect(component).toBeTruthy();41  });42  it('should call registerOnChange method', () => {43    const spy = spyOn(component, 'registerOnChange');44    const input = fixture.debugElement.nativeElement.querySelector('input');45    input.value = 'test';46    input.dispatchEvent(new Event('input'));47    expect(spy).toHaveBeenCalled();48  });49});

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.