628 lines
19 KiB
TypeScript
628 lines
19 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {fakeAsync, tick} from '@angular/core/testing';
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import {AsyncTestCompleter, beforeEach, ddescribe, describe, iit, inject, it, xit} from '@angular/core/testing/testing_internal';
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import {FormControl, FormGroup, Validators} from '@angular/forms';
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import {EventEmitter} from '../src/facade/async';
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import {isPresent} from '../src/facade/lang';
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export function main() {
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function asyncValidator(expected: any /** TODO #9100 */, timeouts = {}) {
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return (c: any /** TODO #9100 */) => {
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var resolve: (result: any) => void;
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var promise = new Promise(res => { resolve = res; });
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var t = isPresent((timeouts as any /** TODO #9100 */)[c.value]) ?
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(timeouts as any /** TODO #9100 */)[c.value] :
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0;
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var res = c.value != expected ? {'async': true} : null;
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if (t == 0) {
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resolve(res);
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} else {
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setTimeout(() => { resolve(res); }, t);
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}
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return promise;
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};
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}
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function asyncValidatorReturningObservable(c: FormControl) {
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var e = new EventEmitter();
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Promise.resolve(null).then(() => { e.emit({'async': true}); });
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return e;
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}
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function otherAsyncValidator() { return Promise.resolve({'other': true}); }
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describe('FormControl', () => {
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it('should default the value to null', () => {
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var c = new FormControl();
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expect(c.value).toBe(null);
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});
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describe('validator', () => {
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it('should run validator with the initial value', () => {
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var c = new FormControl('value', Validators.required);
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expect(c.valid).toEqual(true);
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});
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it('should rerun the validator when the value changes', () => {
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var c = new FormControl('value', Validators.required);
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c.setValue(null);
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expect(c.valid).toEqual(false);
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});
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it('should support arrays of validator functions if passed', () => {
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const c = new FormControl('value', [Validators.required, Validators.minLength(3)]);
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c.setValue('a');
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expect(c.valid).toEqual(false);
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c.setValue('aaa');
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expect(c.valid).toEqual(true);
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});
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it('should return errors', () => {
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var c = new FormControl(null, Validators.required);
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expect(c.errors).toEqual({'required': true});
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});
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it('should set single validator', () => {
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var c = new FormControl(null);
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expect(c.valid).toEqual(true);
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c.setValidators(Validators.required);
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c.setValue(null);
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expect(c.valid).toEqual(false);
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c.setValue('abc');
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expect(c.valid).toEqual(true);
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});
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it('should set multiple validators from array', () => {
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var c = new FormControl('');
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expect(c.valid).toEqual(true);
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c.setValidators([Validators.minLength(5), Validators.required]);
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c.setValue('');
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expect(c.valid).toEqual(false);
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c.setValue('abc');
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expect(c.valid).toEqual(false);
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c.setValue('abcde');
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expect(c.valid).toEqual(true);
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});
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it('should clear validators', () => {
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var c = new FormControl('', Validators.required);
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expect(c.valid).toEqual(false);
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c.clearValidators();
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expect(c.validator).toEqual(null);
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c.setValue('');
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expect(c.valid).toEqual(true);
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});
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it('should add after clearing', () => {
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var c = new FormControl('', Validators.required);
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expect(c.valid).toEqual(false);
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c.clearValidators();
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expect(c.validator).toEqual(null);
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c.setValidators([Validators.required]);
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expect(c.validator).not.toBe(null);
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});
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});
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describe('asyncValidator', () => {
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it('should run validator with the initial value', fakeAsync(() => {
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var c = new FormControl('value', null, asyncValidator('expected'));
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tick();
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expect(c.valid).toEqual(false);
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expect(c.errors).toEqual({'async': true});
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}));
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it('should support validators returning observables', fakeAsync(() => {
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var c = new FormControl('value', null, asyncValidatorReturningObservable);
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tick();
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expect(c.valid).toEqual(false);
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expect(c.errors).toEqual({'async': true});
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}));
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it('should rerun the validator when the value changes', fakeAsync(() => {
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var c = new FormControl('value', null, asyncValidator('expected'));
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c.setValue('expected');
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tick();
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expect(c.valid).toEqual(true);
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}));
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it('should run the async validator only when the sync validator passes', fakeAsync(() => {
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var c = new FormControl('', Validators.required, asyncValidator('expected'));
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tick();
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expect(c.errors).toEqual({'required': true});
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c.setValue('some value');
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tick();
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expect(c.errors).toEqual({'async': true});
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}));
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it('should mark the control as pending while running the async validation', fakeAsync(() => {
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var c = new FormControl('', null, asyncValidator('expected'));
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expect(c.pending).toEqual(true);
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tick();
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expect(c.pending).toEqual(false);
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}));
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it('should only use the latest async validation run', fakeAsync(() => {
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var c = new FormControl(
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'', null, asyncValidator('expected', {'long': 200, 'expected': 100}));
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c.setValue('long');
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c.setValue('expected');
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tick(300);
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expect(c.valid).toEqual(true);
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}));
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it('should support arrays of async validator functions if passed', fakeAsync(() => {
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const c =
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new FormControl('value', null, [asyncValidator('expected'), otherAsyncValidator]);
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tick();
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expect(c.errors).toEqual({'async': true, 'other': true});
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}));
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it('should add single async validator', fakeAsync(() => {
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var c = new FormControl('value', null);
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c.setAsyncValidators(asyncValidator('expected'));
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expect(c.asyncValidator).not.toEqual(null);
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c.setValue('expected');
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tick();
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expect(c.valid).toEqual(true);
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}));
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it('should add async validator from array', fakeAsync(() => {
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var c = new FormControl('value', null);
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c.setAsyncValidators([asyncValidator('expected')]);
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expect(c.asyncValidator).not.toEqual(null);
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c.setValue('expected');
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tick();
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expect(c.valid).toEqual(true);
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}));
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it('should clear async validators', fakeAsync(() => {
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var c = new FormControl('value', [asyncValidator('expected'), otherAsyncValidator]);
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c.clearValidators();
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expect(c.asyncValidator).toEqual(null);
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}));
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});
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describe('dirty', () => {
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it('should be false after creating a control', () => {
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const c = new FormControl('value');
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expect(c.dirty).toEqual(false);
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});
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it('should be true after changing the value of the control', () => {
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const c = new FormControl('value');
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c.markAsDirty();
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expect(c.dirty).toEqual(true);
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});
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});
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describe('touched', () => {
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it('should be false after creating a control', () => {
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const c = new FormControl('value');
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expect(c.touched).toEqual(false);
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});
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it('should be true after markAsTouched runs', () => {
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const c = new FormControl('value');
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c.markAsTouched();
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expect(c.touched).toEqual(true);
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});
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});
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describe('setValue', () => {
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let g: FormGroup, c: FormControl;
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beforeEach(() => {
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c = new FormControl('oldValue');
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g = new FormGroup({'one': c});
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});
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it('should set the value of the control', () => {
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c.setValue('newValue');
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expect(c.value).toEqual('newValue');
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});
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it('should invoke ngOnChanges if it is present', () => {
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let ngOnChanges: any;
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c.registerOnChange((v: any) => ngOnChanges = ['invoked', v]);
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c.setValue('newValue');
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expect(ngOnChanges).toEqual(['invoked', 'newValue']);
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});
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it('should not invoke on change when explicitly specified', () => {
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let onChange: any = null;
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c.registerOnChange((v: any) => onChange = ['invoked', v]);
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c.setValue('newValue', {emitModelToViewChange: false});
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expect(onChange).toBeNull();
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});
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it('should set the parent', () => {
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c.setValue('newValue');
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expect(g.value).toEqual({'one': 'newValue'});
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});
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it('should not set the parent when explicitly specified', () => {
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c.setValue('newValue', {onlySelf: true});
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expect(g.value).toEqual({'one': 'oldValue'});
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});
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it('should fire an event', fakeAsync(() => {
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c.valueChanges.subscribe((value) => { expect(value).toEqual('newValue'); });
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c.setValue('newValue');
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tick();
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}));
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it('should not fire an event when explicitly specified', fakeAsync(() => {
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c.valueChanges.subscribe((value) => { throw 'Should not happen'; });
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c.setValue('newValue', {emitEvent: false});
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tick();
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}));
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});
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describe('patchValue', () => {
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let g: FormGroup, c: FormControl;
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beforeEach(() => {
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c = new FormControl('oldValue');
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g = new FormGroup({'one': c});
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});
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it('should set the value of the control', () => {
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c.patchValue('newValue');
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expect(c.value).toEqual('newValue');
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});
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it('should invoke ngOnChanges if it is present', () => {
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let ngOnChanges: any;
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c.registerOnChange((v: any) => ngOnChanges = ['invoked', v]);
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c.patchValue('newValue');
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expect(ngOnChanges).toEqual(['invoked', 'newValue']);
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});
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it('should not invoke on change when explicitly specified', () => {
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let onChange: any = null;
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c.registerOnChange((v: any) => onChange = ['invoked', v]);
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c.patchValue('newValue', {emitModelToViewChange: false});
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expect(onChange).toBeNull();
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});
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it('should set the parent', () => {
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c.patchValue('newValue');
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expect(g.value).toEqual({'one': 'newValue'});
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});
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it('should not set the parent when explicitly specified', () => {
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c.patchValue('newValue', {onlySelf: true});
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expect(g.value).toEqual({'one': 'oldValue'});
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});
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it('should fire an event', fakeAsync(() => {
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c.valueChanges.subscribe((value) => { expect(value).toEqual('newValue'); });
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c.patchValue('newValue');
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tick();
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}));
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it('should not fire an event when explicitly specified', fakeAsync(() => {
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c.valueChanges.subscribe((value) => { throw 'Should not happen'; });
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c.patchValue('newValue', {emitEvent: false});
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tick();
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}));
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});
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describe('reset()', () => {
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let c: FormControl;
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beforeEach(() => { c = new FormControl('initial value'); });
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it('should restore the initial value of the control if passed', () => {
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c.setValue('new value');
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expect(c.value).toBe('new value');
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c.reset('initial value');
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expect(c.value).toBe('initial value');
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});
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it('should clear the control value if no value is passed', () => {
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c.setValue('new value');
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expect(c.value).toBe('new value');
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c.reset();
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expect(c.value).toBe(null);
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});
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it('should update the value of any parent controls with passed value', () => {
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const g = new FormGroup({'one': c});
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c.setValue('new value');
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expect(g.value).toEqual({'one': 'new value'});
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c.reset('initial value');
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expect(g.value).toEqual({'one': 'initial value'});
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});
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it('should update the value of any parent controls with null value', () => {
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const g = new FormGroup({'one': c});
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c.setValue('new value');
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expect(g.value).toEqual({'one': 'new value'});
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c.reset();
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expect(g.value).toEqual({'one': null});
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});
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it('should mark the control as pristine', () => {
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c.markAsDirty();
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expect(c.pristine).toBe(false);
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c.reset();
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expect(c.pristine).toBe(true);
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});
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it('should set the parent pristine state if all pristine', () => {
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const g = new FormGroup({'one': c});
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c.markAsDirty();
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expect(g.pristine).toBe(false);
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c.reset();
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expect(g.pristine).toBe(true);
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});
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it('should not set the parent pristine state if it has other dirty controls', () => {
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const c2 = new FormControl('two');
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const g = new FormGroup({'one': c, 'two': c2});
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c.markAsDirty();
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c2.markAsDirty();
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c.reset();
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expect(g.pristine).toBe(false);
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});
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it('should mark the control as untouched', () => {
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c.markAsTouched();
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expect(c.untouched).toBe(false);
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c.reset();
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expect(c.untouched).toBe(true);
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});
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it('should set the parent untouched state if all untouched', () => {
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const g = new FormGroup({'one': c});
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c.markAsTouched();
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expect(g.untouched).toBe(false);
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c.reset();
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expect(g.untouched).toBe(true);
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});
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it('should not set the parent untouched state if other touched controls', () => {
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const c2 = new FormControl('two');
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const g = new FormGroup({'one': c, 'two': c2});
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c.markAsTouched();
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c2.markAsTouched();
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c.reset();
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expect(g.untouched).toBe(false);
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});
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describe('reset() events', () => {
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let g: FormGroup, c2: FormControl, logger: any[];
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beforeEach(() => {
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c2 = new FormControl('two');
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g = new FormGroup({'one': c, 'two': c2});
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logger = [];
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});
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it('should emit one valueChange event per reset control', () => {
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g.valueChanges.subscribe(() => logger.push('group'));
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c.valueChanges.subscribe(() => logger.push('control1'));
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c2.valueChanges.subscribe(() => logger.push('control2'));
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c.reset();
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expect(logger).toEqual(['control1', 'group']);
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});
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it('should emit one statusChange event per reset control', () => {
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g.statusChanges.subscribe(() => logger.push('group'));
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c.statusChanges.subscribe(() => logger.push('control1'));
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c2.statusChanges.subscribe(() => logger.push('control2'));
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c.reset();
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expect(logger).toEqual(['control1', 'group']);
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});
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});
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});
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describe('valueChanges & statusChanges', () => {
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var c: any /** TODO #9100 */;
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beforeEach(() => { c = new FormControl('old', Validators.required); });
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it('should fire an event after the value has been updated',
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inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
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c.valueChanges.subscribe({
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next: (value: any) => {
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expect(c.value).toEqual('new');
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expect(value).toEqual('new');
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async.done();
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}
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});
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c.setValue('new');
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}));
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it('should fire an event after the status has been updated to invalid', fakeAsync(() => {
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c.statusChanges.subscribe({
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next: (status: any) => {
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expect(c.status).toEqual('INVALID');
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expect(status).toEqual('INVALID');
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}
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});
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c.setValue('');
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tick();
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}));
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it('should fire an event after the status has been updated to pending', fakeAsync(() => {
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var c = new FormControl('old', Validators.required, asyncValidator('expected'));
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var log: any[] /** TODO #9100 */ = [];
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c.valueChanges.subscribe({next: (value: any) => log.push(`value: '${value}'`)});
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c.statusChanges.subscribe({next: (status: any) => log.push(`status: '${status}'`)});
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c.setValue('');
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tick();
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c.setValue('nonEmpty');
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tick();
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c.setValue('expected');
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tick();
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expect(log).toEqual([
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'' +
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'value: \'\'',
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'status: \'INVALID\'',
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'value: \'nonEmpty\'',
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'status: \'PENDING\'',
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'status: \'INVALID\'',
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'value: \'expected\'',
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'status: \'PENDING\'',
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'status: \'VALID\'',
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]);
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}));
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// TODO: remove the if statement after making observable delivery sync
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it('should update set errors and status before emitting an event',
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inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
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c.valueChanges.subscribe((value: any /** TODO #9100 */) => {
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expect(c.valid).toEqual(false);
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expect(c.errors).toEqual({'required': true});
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async.done();
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});
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c.setValue('');
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}));
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it('should return a cold observable',
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inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
|
|
c.setValue('will be ignored');
|
|
c.valueChanges.subscribe({
|
|
next: (value: any) => {
|
|
expect(value).toEqual('new');
|
|
async.done();
|
|
}
|
|
});
|
|
c.setValue('new');
|
|
}));
|
|
});
|
|
|
|
describe('setErrors', () => {
|
|
it('should set errors on a control', () => {
|
|
var c = new FormControl('someValue');
|
|
|
|
c.setErrors({'someError': true});
|
|
|
|
expect(c.valid).toEqual(false);
|
|
expect(c.errors).toEqual({'someError': true});
|
|
});
|
|
|
|
it('should reset the errors and validity when the value changes', () => {
|
|
var c = new FormControl('someValue', Validators.required);
|
|
|
|
c.setErrors({'someError': true});
|
|
c.setValue('');
|
|
|
|
expect(c.errors).toEqual({'required': true});
|
|
});
|
|
|
|
it('should update the parent group\'s validity', () => {
|
|
var c = new FormControl('someValue');
|
|
var g = new FormGroup({'one': c});
|
|
|
|
expect(g.valid).toEqual(true);
|
|
|
|
c.setErrors({'someError': true});
|
|
|
|
expect(g.valid).toEqual(false);
|
|
});
|
|
|
|
it('should not reset parent\'s errors', () => {
|
|
var c = new FormControl('someValue');
|
|
var g = new FormGroup({'one': c});
|
|
|
|
g.setErrors({'someGroupError': true});
|
|
c.setErrors({'someError': true});
|
|
|
|
expect(g.errors).toEqual({'someGroupError': true});
|
|
});
|
|
|
|
it('should reset errors when updating a value', () => {
|
|
var c = new FormControl('oldValue');
|
|
var g = new FormGroup({'one': c});
|
|
|
|
g.setErrors({'someGroupError': true});
|
|
c.setErrors({'someError': true});
|
|
|
|
c.setValue('newValue');
|
|
|
|
expect(c.errors).toEqual(null);
|
|
expect(g.errors).toEqual(null);
|
|
});
|
|
});
|
|
});
|
|
}
|