1df3aefb81
BREAKING CHANGE Previous to this change, when a control was reset, value and status change events would be emitted before the control was reset to pristine. As a result, if one were to check a control's pristine state in a valueChange listener, it would appear that the control was still dirty after reset. This change delays emission of value and status change events until after controls have been marked pristine. This means the pristine state will be reset as expected if one checks in a listener. Theoretically, there could be applications depending on checking whether a control *used to be dirty*, so this is marked as breaking. In these cases, apps should cache the state on the app side before calling reset. Fixes #28130 PR Close #28395
1356 lines
46 KiB
TypeScript
1356 lines
46 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 {EventEmitter} from '@angular/core';
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import {async, fakeAsync, tick} from '@angular/core/testing';
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import {AsyncTestCompleter, beforeEach, describe, inject, it} from '@angular/core/testing/src/testing_internal';
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import {AbstractControl, FormArray, FormControl, FormGroup, ValidationErrors, Validators} from '@angular/forms';
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import {of } from 'rxjs';
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(function() {
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function simpleValidator(c: AbstractControl): ValidationErrors|null {
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return c.get('one') !.value === 'correct' ? null : {'broken': true};
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}
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function asyncValidator(expected: string, timeouts = {}) {
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return (c: AbstractControl) => {
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let resolve: (result: any) => void = undefined !;
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const promise = new Promise(res => { resolve = res; });
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const t = (timeouts as any)[c.value] != null ? (timeouts as any)[c.value] : 0;
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const 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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const 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 otherObservableValidator() { return of ({'other': true}); }
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describe('FormGroup', () => {
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describe('value', () => {
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it('should be the reduced value of the child controls', () => {
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const g = new FormGroup({'one': new FormControl('111'), 'two': new FormControl('222')});
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expect(g.value).toEqual({'one': '111', 'two': '222'});
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});
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it('should be empty when there are no child controls', () => {
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const g = new FormGroup({});
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expect(g.value).toEqual({});
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});
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it('should support nested groups', () => {
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const g = new FormGroup({
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'one': new FormControl('111'),
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'nested': new FormGroup({'two': new FormControl('222')})
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});
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expect(g.value).toEqual({'one': '111', 'nested': {'two': '222'}});
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(<FormControl>(g.get('nested.two'))).setValue('333');
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expect(g.value).toEqual({'one': '111', 'nested': {'two': '333'}});
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});
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});
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describe('getRawValue', () => {
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let fg: FormGroup;
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it('should work with nested form groups/arrays', () => {
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fg = new FormGroup({
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'c1': new FormControl('v1'),
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'group': new FormGroup({'c2': new FormControl('v2'), 'c3': new FormControl('v3')}),
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'array': new FormArray([new FormControl('v4'), new FormControl('v5')])
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});
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fg.get('group') !.get('c3') !.disable();
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(fg.get('array') as FormArray).at(1).disable();
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expect(fg.getRawValue())
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.toEqual({'c1': 'v1', 'group': {'c2': 'v2', 'c3': 'v3'}, 'array': ['v4', 'v5']});
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});
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});
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describe('markAllAsTouched', () => {
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it('should mark all descendants as touched', () => {
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const formGroup: FormGroup = new FormGroup({
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'c1': new FormControl('v1'),
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'group': new FormGroup({'c2': new FormControl('v2'), 'c3': new FormControl('v3')}),
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'array': new FormArray([
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new FormControl('v4'), new FormControl('v5'),
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new FormGroup({'c4': new FormControl('v4')})
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])
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});
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expect(formGroup.touched).toBe(false);
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const control1 = formGroup.get('c1') as FormControl;
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expect(control1.touched).toBe(false);
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const innerGroup = formGroup.get('group') as FormGroup;
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expect(innerGroup.touched).toBe(false);
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const innerGroupFirstChildCtrl = innerGroup.get('c2') as FormControl;
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expect(innerGroupFirstChildCtrl.touched).toBe(false);
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formGroup.markAllAsTouched();
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expect(formGroup.touched).toBe(true);
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expect(control1.touched).toBe(true);
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expect(innerGroup.touched).toBe(true);
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expect(innerGroupFirstChildCtrl.touched).toBe(true);
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const innerGroupSecondChildCtrl = innerGroup.get('c3') as FormControl;
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expect(innerGroupSecondChildCtrl.touched).toBe(true);
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const array = formGroup.get('array') as FormArray;
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expect(array.touched).toBe(true);
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const arrayFirstChildCtrl = array.at(0) as FormControl;
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expect(arrayFirstChildCtrl.touched).toBe(true);
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const arraySecondChildCtrl = array.at(1) as FormControl;
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expect(arraySecondChildCtrl.touched).toBe(true);
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const arrayFirstChildGroup = array.at(2) as FormGroup;
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expect(arrayFirstChildGroup.touched).toBe(true);
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const arrayFirstChildGroupFirstChildCtrl = arrayFirstChildGroup.get('c4') as FormControl;
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expect(arrayFirstChildGroupFirstChildCtrl.touched).toBe(true);
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});
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});
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describe('adding and removing controls', () => {
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it('should update value and validity when control is added', () => {
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const g = new FormGroup({'one': new FormControl('1')});
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expect(g.value).toEqual({'one': '1'});
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expect(g.valid).toBe(true);
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g.addControl('two', new FormControl('2', Validators.minLength(10)));
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expect(g.value).toEqual({'one': '1', 'two': '2'});
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expect(g.valid).toBe(false);
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});
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it('should update value and validity when control is removed', () => {
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const g = new FormGroup(
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{'one': new FormControl('1'), 'two': new FormControl('2', Validators.minLength(10))});
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expect(g.value).toEqual({'one': '1', 'two': '2'});
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expect(g.valid).toBe(false);
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g.removeControl('two');
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expect(g.value).toEqual({'one': '1'});
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expect(g.valid).toBe(true);
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});
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});
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describe('dirty', () => {
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let c: FormControl, g: FormGroup;
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beforeEach(() => {
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c = new FormControl('value');
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g = new FormGroup({'one': c});
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});
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it('should be false after creating a control', () => { expect(g.dirty).toEqual(false); });
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it('should be true after changing the value of the control', () => {
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c.markAsDirty();
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expect(g.dirty).toEqual(true);
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});
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});
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describe('touched', () => {
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let c: FormControl, g: FormGroup;
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beforeEach(() => {
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c = new FormControl('value');
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g = new FormGroup({'one': c});
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});
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it('should be false after creating a control', () => { expect(g.touched).toEqual(false); });
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it('should be true after control is marked as touched', () => {
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c.markAsTouched();
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expect(g.touched).toEqual(true);
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});
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});
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describe('setValue', () => {
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let c: FormControl, c2: FormControl, g: FormGroup;
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beforeEach(() => {
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c = new FormControl('');
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c2 = new FormControl('');
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g = new FormGroup({'one': c, 'two': c2});
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});
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it('should set its own value', () => {
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g.setValue({'one': 'one', 'two': 'two'});
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expect(g.value).toEqual({'one': 'one', 'two': 'two'});
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});
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it('should set child values', () => {
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g.setValue({'one': 'one', 'two': 'two'});
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expect(c.value).toEqual('one');
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expect(c2.value).toEqual('two');
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});
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it('should set child control values if disabled', () => {
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c2.disable();
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g.setValue({'one': 'one', 'two': 'two'});
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expect(c2.value).toEqual('two');
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expect(g.value).toEqual({'one': 'one'});
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expect(g.getRawValue()).toEqual({'one': 'one', 'two': 'two'});
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});
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it('should set group value if group is disabled', () => {
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g.disable();
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g.setValue({'one': 'one', 'two': 'two'});
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expect(c.value).toEqual('one');
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expect(c2.value).toEqual('two');
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expect(g.value).toEqual({'one': 'one', 'two': 'two'});
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});
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it('should set parent values', () => {
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const form = new FormGroup({'parent': g});
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g.setValue({'one': 'one', 'two': 'two'});
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expect(form.value).toEqual({'parent': {'one': 'one', 'two': 'two'}});
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});
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it('should not update the parent when explicitly specified', () => {
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const form = new FormGroup({'parent': g});
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g.setValue({'one': 'one', 'two': 'two'}, {onlySelf: true});
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expect(form.value).toEqual({parent: {'one': '', 'two': ''}});
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});
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it('should throw if fields are missing from supplied value (subset)', () => {
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expect(() => g.setValue({
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'one': 'one'
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})).toThrowError(new RegExp(`Must supply a value for form control with name: 'two'`));
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});
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it('should throw if a value is provided for a missing control (superset)', () => {
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expect(() => g.setValue({'one': 'one', 'two': 'two', 'three': 'three'}))
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.toThrowError(new RegExp(`Cannot find form control with name: three`));
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});
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it('should throw if a value is not provided for a disabled control', () => {
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c2.disable();
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expect(() => g.setValue({
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'one': 'one'
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})).toThrowError(new RegExp(`Must supply a value for form control with name: 'two'`));
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});
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it('should throw if no controls are set yet', () => {
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const empty = new FormGroup({});
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expect(() => empty.setValue({
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'one': 'one'
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})).toThrowError(new RegExp(`no form controls registered with this group`));
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});
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describe('setValue() events', () => {
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let form: FormGroup;
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let logger: any[];
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beforeEach(() => {
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form = new FormGroup({'parent': g});
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logger = [];
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});
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it('should emit one valueChange event per control', () => {
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form.valueChanges.subscribe(() => logger.push('form'));
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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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g.setValue({'one': 'one', 'two': 'two'});
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expect(logger).toEqual(['control1', 'control2', 'group', 'form']);
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});
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it('should not fire an event when explicitly specified', fakeAsync(() => {
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form.valueChanges.subscribe((value) => { throw 'Should not happen'; });
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g.valueChanges.subscribe((value) => { throw 'Should not happen'; });
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c.valueChanges.subscribe((value) => { throw 'Should not happen'; });
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g.setValue({'one': 'one', 'two': 'two'}, {emitEvent: false});
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tick();
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}));
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it('should emit one statusChange event per control', () => {
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form.statusChanges.subscribe(() => logger.push('form'));
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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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g.setValue({'one': 'one', 'two': 'two'});
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expect(logger).toEqual(['control1', 'control2', 'group', 'form']);
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});
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});
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});
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describe('patchValue', () => {
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let c: FormControl, c2: FormControl, g: FormGroup;
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beforeEach(() => {
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c = new FormControl('');
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c2 = new FormControl('');
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g = new FormGroup({'one': c, 'two': c2});
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});
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it('should set its own value', () => {
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g.patchValue({'one': 'one', 'two': 'two'});
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expect(g.value).toEqual({'one': 'one', 'two': 'two'});
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});
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it('should set child values', () => {
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g.patchValue({'one': 'one', 'two': 'two'});
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expect(c.value).toEqual('one');
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expect(c2.value).toEqual('two');
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});
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it('should patch disabled control values', () => {
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c2.disable();
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g.patchValue({'one': 'one', 'two': 'two'});
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expect(c2.value).toEqual('two');
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expect(g.value).toEqual({'one': 'one'});
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expect(g.getRawValue()).toEqual({'one': 'one', 'two': 'two'});
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});
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it('should patch disabled control groups', () => {
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g.disable();
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g.patchValue({'one': 'one', 'two': 'two'});
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expect(c.value).toEqual('one');
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expect(c2.value).toEqual('two');
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expect(g.value).toEqual({'one': 'one', 'two': 'two'});
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});
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it('should set parent values', () => {
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const form = new FormGroup({'parent': g});
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g.patchValue({'one': 'one', 'two': 'two'});
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expect(form.value).toEqual({'parent': {'one': 'one', 'two': 'two'}});
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});
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it('should not update the parent when explicitly specified', () => {
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const form = new FormGroup({'parent': g});
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g.patchValue({'one': 'one', 'two': 'two'}, {onlySelf: true});
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expect(form.value).toEqual({parent: {'one': '', 'two': ''}});
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});
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it('should ignore fields that are missing from supplied value (subset)', () => {
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g.patchValue({'one': 'one'});
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expect(g.value).toEqual({'one': 'one', 'two': ''});
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});
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it('should not ignore fields that are null', () => {
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g.patchValue({'one': null});
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expect(g.value).toEqual({'one': null, 'two': ''});
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});
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it('should ignore any value provided for a missing control (superset)', () => {
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g.patchValue({'three': 'three'});
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expect(g.value).toEqual({'one': '', 'two': ''});
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});
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describe('patchValue() events', () => {
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let form: FormGroup;
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let logger: any[];
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beforeEach(() => {
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form = new FormGroup({'parent': g});
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logger = [];
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});
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it('should emit one valueChange event per control', () => {
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form.valueChanges.subscribe(() => logger.push('form'));
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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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g.patchValue({'one': 'one', 'two': 'two'});
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expect(logger).toEqual(['control1', 'control2', 'group', 'form']);
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});
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it('should not emit valueChange events for skipped controls', () => {
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form.valueChanges.subscribe(() => logger.push('form'));
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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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g.patchValue({'one': 'one'});
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expect(logger).toEqual(['control1', 'group', 'form']);
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});
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it('should not fire an event when explicitly specified', fakeAsync(() => {
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form.valueChanges.subscribe((value) => { throw 'Should not happen'; });
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g.valueChanges.subscribe((value) => { throw 'Should not happen'; });
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c.valueChanges.subscribe((value) => { throw 'Should not happen'; });
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g.patchValue({'one': 'one', 'two': 'two'}, {emitEvent: false});
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tick();
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}));
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it('should emit one statusChange event per control', () => {
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form.statusChanges.subscribe(() => logger.push('form'));
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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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g.patchValue({'one': 'one', 'two': 'two'});
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expect(logger).toEqual(['control1', 'control2', 'group', 'form']);
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});
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});
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});
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describe('reset()', () => {
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let c: FormControl, c2: FormControl, g: FormGroup;
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beforeEach(() => {
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c = new FormControl('initial value');
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c2 = new FormControl('');
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g = new FormGroup({'one': c, 'two': c2});
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});
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it('should set its own value if value passed', () => {
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g.setValue({'one': 'new value', 'two': 'new value'});
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g.reset({'one': 'initial value', 'two': ''});
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expect(g.value).toEqual({'one': 'initial value', 'two': ''});
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});
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it('should set its own value if boxed value passed', () => {
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g.setValue({'one': 'new value', 'two': 'new value'});
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g.reset({'one': {value: 'initial value', disabled: false}, 'two': ''});
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expect(g.value).toEqual({'one': 'initial value', 'two': ''});
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});
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it('should clear its own value if no value passed', () => {
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g.setValue({'one': 'new value', 'two': 'new value'});
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g.reset();
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expect(g.value).toEqual({'one': null, 'two': null});
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});
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it('should set the value of each of its child controls if value passed', () => {
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g.setValue({'one': 'new value', 'two': 'new value'});
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g.reset({'one': 'initial value', 'two': ''});
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expect(c.value).toBe('initial value');
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expect(c2.value).toBe('');
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});
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it('should clear the value of each of its child controls if no value passed', () => {
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g.setValue({'one': 'new value', 'two': 'new value'});
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g.reset();
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expect(c.value).toBe(null);
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expect(c2.value).toBe(null);
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});
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it('should set the value of its parent if value passed', () => {
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const form = new FormGroup({'g': g});
|
|
g.setValue({'one': 'new value', 'two': 'new value'});
|
|
|
|
g.reset({'one': 'initial value', 'two': ''});
|
|
expect(form.value).toEqual({'g': {'one': 'initial value', 'two': ''}});
|
|
});
|
|
|
|
it('should clear the value of its parent if no value passed', () => {
|
|
const form = new FormGroup({'g': g});
|
|
g.setValue({'one': 'new value', 'two': 'new value'});
|
|
|
|
g.reset();
|
|
expect(form.value).toEqual({'g': {'one': null, 'two': null}});
|
|
});
|
|
|
|
it('should not update the parent when explicitly specified', () => {
|
|
const form = new FormGroup({'g': g});
|
|
g.reset({'one': 'new value', 'two': 'new value'}, {onlySelf: true});
|
|
|
|
expect(form.value).toEqual({g: {'one': 'initial value', 'two': ''}});
|
|
});
|
|
|
|
it('should mark itself as pristine', () => {
|
|
g.markAsDirty();
|
|
expect(g.pristine).toBe(false);
|
|
|
|
g.reset();
|
|
expect(g.pristine).toBe(true);
|
|
});
|
|
|
|
it('should mark all child controls as pristine', () => {
|
|
c.markAsDirty();
|
|
c2.markAsDirty();
|
|
expect(c.pristine).toBe(false);
|
|
expect(c2.pristine).toBe(false);
|
|
|
|
g.reset();
|
|
expect(c.pristine).toBe(true);
|
|
expect(c2.pristine).toBe(true);
|
|
});
|
|
|
|
it('should mark the parent as pristine if all siblings pristine', () => {
|
|
const c3 = new FormControl('');
|
|
const form = new FormGroup({'g': g, 'c3': c3});
|
|
|
|
g.markAsDirty();
|
|
expect(form.pristine).toBe(false);
|
|
|
|
g.reset();
|
|
expect(form.pristine).toBe(true);
|
|
});
|
|
|
|
it('should not mark the parent pristine if any dirty siblings', () => {
|
|
const c3 = new FormControl('');
|
|
const form = new FormGroup({'g': g, 'c3': c3});
|
|
|
|
g.markAsDirty();
|
|
c3.markAsDirty();
|
|
expect(form.pristine).toBe(false);
|
|
|
|
g.reset();
|
|
expect(form.pristine).toBe(false);
|
|
});
|
|
|
|
it('should mark itself as untouched', () => {
|
|
g.markAsTouched();
|
|
expect(g.untouched).toBe(false);
|
|
|
|
g.reset();
|
|
expect(g.untouched).toBe(true);
|
|
});
|
|
|
|
it('should mark all child controls as untouched', () => {
|
|
c.markAsTouched();
|
|
c2.markAsTouched();
|
|
expect(c.untouched).toBe(false);
|
|
expect(c2.untouched).toBe(false);
|
|
|
|
g.reset();
|
|
expect(c.untouched).toBe(true);
|
|
expect(c2.untouched).toBe(true);
|
|
});
|
|
|
|
it('should mark the parent untouched if all siblings untouched', () => {
|
|
const c3 = new FormControl('');
|
|
const form = new FormGroup({'g': g, 'c3': c3});
|
|
|
|
g.markAsTouched();
|
|
expect(form.untouched).toBe(false);
|
|
|
|
g.reset();
|
|
expect(form.untouched).toBe(true);
|
|
});
|
|
|
|
it('should not mark the parent untouched if any touched siblings', () => {
|
|
const c3 = new FormControl('');
|
|
const form = new FormGroup({'g': g, 'c3': c3});
|
|
|
|
g.markAsTouched();
|
|
c3.markAsTouched();
|
|
expect(form.untouched).toBe(false);
|
|
|
|
g.reset();
|
|
expect(form.untouched).toBe(false);
|
|
});
|
|
|
|
it('should retain previous disabled state', () => {
|
|
g.disable();
|
|
g.reset();
|
|
|
|
expect(g.disabled).toBe(true);
|
|
});
|
|
|
|
it('should set child disabled state if boxed value passed', () => {
|
|
g.disable();
|
|
g.reset({'one': {value: '', disabled: false}, 'two': ''});
|
|
|
|
expect(c.disabled).toBe(false);
|
|
expect(g.disabled).toBe(false);
|
|
});
|
|
|
|
describe('reset() events', () => {
|
|
let form: FormGroup, c3: FormControl, logger: any[];
|
|
|
|
beforeEach(() => {
|
|
c3 = new FormControl('');
|
|
form = new FormGroup({'g': g, 'c3': c3});
|
|
logger = [];
|
|
});
|
|
|
|
it('should emit one valueChange event per reset control', () => {
|
|
form.valueChanges.subscribe(() => logger.push('form'));
|
|
g.valueChanges.subscribe(() => logger.push('group'));
|
|
c.valueChanges.subscribe(() => logger.push('control1'));
|
|
c2.valueChanges.subscribe(() => logger.push('control2'));
|
|
c3.valueChanges.subscribe(() => logger.push('control3'));
|
|
|
|
g.reset();
|
|
expect(logger).toEqual(['control1', 'control2', 'group', 'form']);
|
|
});
|
|
|
|
it('should not fire an event when explicitly specified', fakeAsync(() => {
|
|
form.valueChanges.subscribe((value) => { throw 'Should not happen'; });
|
|
g.valueChanges.subscribe((value) => { throw 'Should not happen'; });
|
|
c.valueChanges.subscribe((value) => { throw 'Should not happen'; });
|
|
|
|
g.reset({}, {emitEvent: false});
|
|
tick();
|
|
}));
|
|
|
|
it('should emit one statusChange event per reset control', () => {
|
|
form.statusChanges.subscribe(() => logger.push('form'));
|
|
g.statusChanges.subscribe(() => logger.push('group'));
|
|
c.statusChanges.subscribe(() => logger.push('control1'));
|
|
c2.statusChanges.subscribe(() => logger.push('control2'));
|
|
c3.statusChanges.subscribe(() => logger.push('control3'));
|
|
|
|
g.reset();
|
|
expect(logger).toEqual(['control1', 'control2', 'group', 'form']);
|
|
});
|
|
|
|
it('should emit one statusChange event per reset control', () => {
|
|
form.statusChanges.subscribe(() => logger.push('form'));
|
|
g.statusChanges.subscribe(() => logger.push('group'));
|
|
c.statusChanges.subscribe(() => logger.push('control1'));
|
|
c2.statusChanges.subscribe(() => logger.push('control2'));
|
|
c3.statusChanges.subscribe(() => logger.push('control3'));
|
|
|
|
g.reset({'one': {value: '', disabled: true}});
|
|
expect(logger).toEqual(['control1', 'control2', 'group', 'form']);
|
|
});
|
|
|
|
it('should mark as pristine and not dirty before emitting valueChange and statusChange events when resetting',
|
|
() => {
|
|
const pristineAndNotDirty = () => {
|
|
expect(form.pristine).toBe(true);
|
|
expect(form.dirty).toBe(false);
|
|
};
|
|
|
|
c3.markAsDirty();
|
|
expect(form.pristine).toBe(false);
|
|
expect(form.dirty).toBe(true);
|
|
|
|
form.valueChanges.subscribe(pristineAndNotDirty);
|
|
form.statusChanges.subscribe(pristineAndNotDirty);
|
|
|
|
form.reset();
|
|
});
|
|
});
|
|
|
|
});
|
|
|
|
describe('contains', () => {
|
|
let group: FormGroup;
|
|
|
|
beforeEach(() => {
|
|
group = new FormGroup({
|
|
'required': new FormControl('requiredValue'),
|
|
'optional': new FormControl({value: 'disabled value', disabled: true})
|
|
});
|
|
});
|
|
|
|
it('should return false when the component is disabled',
|
|
() => { expect(group.contains('optional')).toEqual(false); });
|
|
|
|
it('should return false when there is no component with the given name',
|
|
() => { expect(group.contains('something else')).toEqual(false); });
|
|
|
|
it('should return true when the component is enabled', () => {
|
|
expect(group.contains('required')).toEqual(true);
|
|
|
|
group.enable();
|
|
|
|
expect(group.contains('optional')).toEqual(true);
|
|
});
|
|
|
|
it('should support controls with dots in their name', () => {
|
|
expect(group.contains('some.name')).toBe(false);
|
|
group.addControl('some.name', new FormControl());
|
|
|
|
expect(group.contains('some.name')).toBe(true);
|
|
});
|
|
});
|
|
|
|
describe('retrieve', () => {
|
|
let group: FormGroup;
|
|
|
|
beforeEach(() => {
|
|
group = new FormGroup({
|
|
'required': new FormControl('requiredValue'),
|
|
});
|
|
});
|
|
|
|
it('should not get inherited properties',
|
|
() => { expect(group.get('constructor')).toBe(null); });
|
|
});
|
|
|
|
describe('statusChanges', () => {
|
|
let control: FormControl;
|
|
let group: FormGroup;
|
|
|
|
beforeEach(async(() => {
|
|
control = new FormControl('', asyncValidatorReturningObservable);
|
|
group = new FormGroup({'one': control});
|
|
}));
|
|
|
|
|
|
// TODO(kara): update these tests to use fake Async
|
|
it('should fire a statusChange if child has async validation change',
|
|
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
|
|
const loggedValues: string[] = [];
|
|
group.statusChanges.subscribe({
|
|
next: (status: string) => {
|
|
loggedValues.push(status);
|
|
if (loggedValues.length === 2) {
|
|
expect(loggedValues).toEqual(['PENDING', 'INVALID']);
|
|
}
|
|
async.done();
|
|
}
|
|
});
|
|
control.setValue('');
|
|
}));
|
|
});
|
|
|
|
describe('getError', () => {
|
|
it('should return the error when it is present', () => {
|
|
const c = new FormControl('', Validators.required);
|
|
const g = new FormGroup({'one': c});
|
|
expect(c.getError('required')).toEqual(true);
|
|
expect(g.getError('required', ['one'])).toEqual(true);
|
|
});
|
|
|
|
it('should return null otherwise', () => {
|
|
const c = new FormControl('not empty', Validators.required);
|
|
const g = new FormGroup({'one': c});
|
|
expect(c.getError('invalid')).toEqual(null);
|
|
expect(g.getError('required', ['one'])).toEqual(null);
|
|
expect(g.getError('required', ['invalid'])).toEqual(null);
|
|
});
|
|
|
|
it('should be able to traverse group with single string', () => {
|
|
const c = new FormControl('', Validators.required);
|
|
const g = new FormGroup({'one': c});
|
|
expect(c.getError('required')).toEqual(true);
|
|
expect(g.getError('required', 'one')).toEqual(true);
|
|
});
|
|
|
|
it('should be able to traverse group with string delimited by dots', () => {
|
|
const c = new FormControl('', Validators.required);
|
|
const g2 = new FormGroup({'two': c});
|
|
const g1 = new FormGroup({'one': g2});
|
|
expect(c.getError('required')).toEqual(true);
|
|
expect(g1.getError('required', 'one.two')).toEqual(true);
|
|
});
|
|
|
|
it('should traverse group with form array using string and numbers', () => {
|
|
const c = new FormControl('', Validators.required);
|
|
const g2 = new FormGroup({'two': c});
|
|
const a = new FormArray([g2]);
|
|
const g1 = new FormGroup({'one': a});
|
|
expect(c.getError('required')).toEqual(true);
|
|
expect(g1.getError('required', ['one', 0, 'two'])).toEqual(true);
|
|
});
|
|
});
|
|
|
|
describe('hasError', () => {
|
|
it('should return true when it is present', () => {
|
|
const c = new FormControl('', Validators.required);
|
|
const g = new FormGroup({'one': c});
|
|
expect(c.hasError('required')).toEqual(true);
|
|
expect(g.hasError('required', ['one'])).toEqual(true);
|
|
});
|
|
|
|
it('should return false otherwise', () => {
|
|
const c = new FormControl('not empty', Validators.required);
|
|
const g = new FormGroup({'one': c});
|
|
expect(c.hasError('invalid')).toEqual(false);
|
|
expect(g.hasError('required', ['one'])).toEqual(false);
|
|
expect(g.hasError('required', ['invalid'])).toEqual(false);
|
|
});
|
|
|
|
it('should be able to traverse group with single string', () => {
|
|
const c = new FormControl('', Validators.required);
|
|
const g = new FormGroup({'one': c});
|
|
expect(c.hasError('required')).toEqual(true);
|
|
expect(g.hasError('required', 'one')).toEqual(true);
|
|
});
|
|
|
|
it('should be able to traverse group with string delimited by dots', () => {
|
|
const c = new FormControl('', Validators.required);
|
|
const g2 = new FormGroup({'two': c});
|
|
const g1 = new FormGroup({'one': g2});
|
|
expect(c.hasError('required')).toEqual(true);
|
|
expect(g1.hasError('required', 'one.two')).toEqual(true);
|
|
});
|
|
it('should traverse group with form array using string and numbers', () => {
|
|
const c = new FormControl('', Validators.required);
|
|
const g2 = new FormGroup({'two': c});
|
|
const a = new FormArray([g2]);
|
|
const g1 = new FormGroup({'one': a});
|
|
expect(c.getError('required')).toEqual(true);
|
|
expect(g1.getError('required', ['one', 0, 'two'])).toEqual(true);
|
|
});
|
|
});
|
|
|
|
describe('validator', () => {
|
|
|
|
function containsValidator(c: AbstractControl): ValidationErrors|null {
|
|
return c.get('one') !.value && c.get('one') !.value.indexOf('c') !== -1 ? null :
|
|
{'missing': true};
|
|
}
|
|
|
|
it('should run a single validator when the value changes', () => {
|
|
const c = new FormControl(null);
|
|
const g = new FormGroup({'one': c}, simpleValidator);
|
|
|
|
c.setValue('correct');
|
|
|
|
expect(g.valid).toEqual(true);
|
|
expect(g.errors).toEqual(null);
|
|
|
|
c.setValue('incorrect');
|
|
|
|
expect(g.valid).toEqual(false);
|
|
expect(g.errors).toEqual({'broken': true});
|
|
});
|
|
|
|
it('should support multiple validators from array', () => {
|
|
const g = new FormGroup({one: new FormControl()}, [simpleValidator, containsValidator]);
|
|
expect(g.valid).toEqual(false);
|
|
expect(g.errors).toEqual({missing: true, broken: true});
|
|
|
|
g.setValue({one: 'c'});
|
|
expect(g.valid).toEqual(false);
|
|
expect(g.errors).toEqual({broken: true});
|
|
|
|
g.setValue({one: 'correct'});
|
|
expect(g.valid).toEqual(true);
|
|
});
|
|
|
|
it('should set single validator from options obj', () => {
|
|
const g = new FormGroup({one: new FormControl()}, {validators: simpleValidator});
|
|
expect(g.valid).toEqual(false);
|
|
expect(g.errors).toEqual({broken: true});
|
|
|
|
g.setValue({one: 'correct'});
|
|
expect(g.valid).toEqual(true);
|
|
});
|
|
|
|
it('should set multiple validators from options obj', () => {
|
|
const g = new FormGroup(
|
|
{one: new FormControl()}, {validators: [simpleValidator, containsValidator]});
|
|
expect(g.valid).toEqual(false);
|
|
expect(g.errors).toEqual({missing: true, broken: true});
|
|
|
|
g.setValue({one: 'c'});
|
|
expect(g.valid).toEqual(false);
|
|
expect(g.errors).toEqual({broken: true});
|
|
|
|
g.setValue({one: 'correct'});
|
|
expect(g.valid).toEqual(true);
|
|
});
|
|
|
|
});
|
|
|
|
describe('asyncValidator', () => {
|
|
it('should run the async validator', fakeAsync(() => {
|
|
const c = new FormControl('value');
|
|
const g = new FormGroup({'one': c}, null !, asyncValidator('expected'));
|
|
|
|
expect(g.pending).toEqual(true);
|
|
|
|
tick(1);
|
|
|
|
expect(g.errors).toEqual({'async': true});
|
|
expect(g.pending).toEqual(false);
|
|
}));
|
|
|
|
it('should set multiple async validators from array', fakeAsync(() => {
|
|
const g = new FormGroup(
|
|
{'one': new FormControl('value')}, null !,
|
|
[asyncValidator('expected'), otherObservableValidator]);
|
|
expect(g.pending).toEqual(true);
|
|
|
|
tick();
|
|
expect(g.errors).toEqual({'async': true, 'other': true});
|
|
expect(g.pending).toEqual(false);
|
|
}));
|
|
|
|
it('should set single async validator from options obj', fakeAsync(() => {
|
|
const g = new FormGroup(
|
|
{'one': new FormControl('value')}, {asyncValidators: asyncValidator('expected')});
|
|
expect(g.pending).toEqual(true);
|
|
|
|
tick();
|
|
expect(g.errors).toEqual({'async': true});
|
|
expect(g.pending).toEqual(false);
|
|
}));
|
|
|
|
it('should set multiple async validators from options obj', fakeAsync(() => {
|
|
const g = new FormGroup(
|
|
{'one': new FormControl('value')},
|
|
{asyncValidators: [asyncValidator('expected'), otherObservableValidator]});
|
|
expect(g.pending).toEqual(true);
|
|
|
|
tick();
|
|
expect(g.errors).toEqual({'async': true, 'other': true});
|
|
expect(g.pending).toEqual(false);
|
|
}));
|
|
|
|
it('should set the parent group\'s status to pending', fakeAsync(() => {
|
|
const c = new FormControl('value', null !, asyncValidator('expected'));
|
|
const g = new FormGroup({'one': c});
|
|
|
|
expect(g.pending).toEqual(true);
|
|
|
|
tick(1);
|
|
|
|
expect(g.pending).toEqual(false);
|
|
}));
|
|
|
|
it('should run the parent group\'s async validator when children are pending',
|
|
fakeAsync(() => {
|
|
const c = new FormControl('value', null !, asyncValidator('expected'));
|
|
const g = new FormGroup({'one': c}, null !, asyncValidator('expected'));
|
|
|
|
tick(1);
|
|
|
|
expect(g.errors).toEqual({'async': true});
|
|
expect(g.get('one') !.errors).toEqual({'async': true});
|
|
}));
|
|
});
|
|
|
|
describe('disable() & enable()', () => {
|
|
it('should mark the group as disabled', () => {
|
|
const g = new FormGroup({'one': new FormControl(null)});
|
|
expect(g.disabled).toBe(false);
|
|
expect(g.valid).toBe(true);
|
|
|
|
g.disable();
|
|
expect(g.disabled).toBe(true);
|
|
expect(g.valid).toBe(false);
|
|
|
|
g.enable();
|
|
expect(g.disabled).toBe(false);
|
|
expect(g.valid).toBe(true);
|
|
});
|
|
|
|
it('should set the group status as disabled', () => {
|
|
const g = new FormGroup({'one': new FormControl(null)});
|
|
expect(g.status).toEqual('VALID');
|
|
|
|
g.disable();
|
|
expect(g.status).toEqual('DISABLED');
|
|
|
|
g.enable();
|
|
expect(g.status).toBe('VALID');
|
|
});
|
|
|
|
it('should mark children of the group as disabled', () => {
|
|
const c1 = new FormControl(null);
|
|
const c2 = new FormControl(null);
|
|
const g = new FormGroup({'one': c1, 'two': c2});
|
|
expect(c1.disabled).toBe(false);
|
|
expect(c2.disabled).toBe(false);
|
|
|
|
g.disable();
|
|
expect(c1.disabled).toBe(true);
|
|
expect(c2.disabled).toBe(true);
|
|
|
|
g.enable();
|
|
expect(c1.disabled).toBe(false);
|
|
expect(c2.disabled).toBe(false);
|
|
});
|
|
|
|
it('should ignore disabled controls in validation', () => {
|
|
const g = new FormGroup({
|
|
nested: new FormGroup({one: new FormControl(null, Validators.required)}),
|
|
two: new FormControl('two')
|
|
});
|
|
expect(g.valid).toBe(false);
|
|
|
|
g.get('nested') !.disable();
|
|
expect(g.valid).toBe(true);
|
|
|
|
g.get('nested') !.enable();
|
|
expect(g.valid).toBe(false);
|
|
});
|
|
|
|
it('should ignore disabled controls when serializing value', () => {
|
|
const g = new FormGroup(
|
|
{nested: new FormGroup({one: new FormControl('one')}), two: new FormControl('two')});
|
|
expect(g.value).toEqual({'nested': {'one': 'one'}, 'two': 'two'});
|
|
|
|
g.get('nested') !.disable();
|
|
expect(g.value).toEqual({'two': 'two'});
|
|
|
|
g.get('nested') !.enable();
|
|
expect(g.value).toEqual({'nested': {'one': 'one'}, 'two': 'two'});
|
|
});
|
|
|
|
it('should update its value when disabled with disabled children', () => {
|
|
const g = new FormGroup(
|
|
{nested: new FormGroup({one: new FormControl('one'), two: new FormControl('two')})});
|
|
|
|
g.get('nested.two') !.disable();
|
|
expect(g.value).toEqual({nested: {one: 'one'}});
|
|
|
|
g.get('nested') !.disable();
|
|
expect(g.value).toEqual({nested: {one: 'one', two: 'two'}});
|
|
|
|
g.get('nested') !.enable();
|
|
expect(g.value).toEqual({nested: {one: 'one', two: 'two'}});
|
|
});
|
|
|
|
it('should update its value when enabled with disabled children', () => {
|
|
const g = new FormGroup(
|
|
{nested: new FormGroup({one: new FormControl('one'), two: new FormControl('two')})});
|
|
|
|
g.get('nested.two') !.disable();
|
|
expect(g.value).toEqual({nested: {one: 'one'}});
|
|
|
|
g.get('nested') !.enable();
|
|
expect(g.value).toEqual({nested: {one: 'one', two: 'two'}});
|
|
});
|
|
|
|
it('should ignore disabled controls when determining dirtiness', () => {
|
|
const g = new FormGroup(
|
|
{nested: new FormGroup({one: new FormControl('one')}), two: new FormControl('two')});
|
|
g.get('nested.one') !.markAsDirty();
|
|
expect(g.dirty).toBe(true);
|
|
|
|
g.get('nested') !.disable();
|
|
expect(g.get('nested') !.dirty).toBe(true);
|
|
expect(g.dirty).toEqual(false);
|
|
|
|
g.get('nested') !.enable();
|
|
expect(g.dirty).toEqual(true);
|
|
});
|
|
|
|
it('should ignore disabled controls when determining touched state', () => {
|
|
const g = new FormGroup(
|
|
{nested: new FormGroup({one: new FormControl('one')}), two: new FormControl('two')});
|
|
g.get('nested.one') !.markAsTouched();
|
|
expect(g.touched).toBe(true);
|
|
|
|
g.get('nested') !.disable();
|
|
expect(g.get('nested') !.touched).toBe(true);
|
|
expect(g.touched).toEqual(false);
|
|
|
|
g.get('nested') !.enable();
|
|
expect(g.touched).toEqual(true);
|
|
});
|
|
|
|
it('should keep empty, disabled groups disabled when updating validity', () => {
|
|
const group = new FormGroup({});
|
|
expect(group.status).toEqual('VALID');
|
|
|
|
group.disable();
|
|
expect(group.status).toEqual('DISABLED');
|
|
|
|
group.updateValueAndValidity();
|
|
expect(group.status).toEqual('DISABLED');
|
|
|
|
group.addControl('one', new FormControl({value: '', disabled: true}));
|
|
expect(group.status).toEqual('DISABLED');
|
|
|
|
group.addControl('two', new FormControl());
|
|
expect(group.status).toEqual('VALID');
|
|
});
|
|
|
|
it('should re-enable empty, disabled groups', () => {
|
|
const group = new FormGroup({});
|
|
group.disable();
|
|
expect(group.status).toEqual('DISABLED');
|
|
|
|
group.enable();
|
|
expect(group.status).toEqual('VALID');
|
|
});
|
|
|
|
it('should not run validators on disabled controls', () => {
|
|
const validator = jasmine.createSpy('validator');
|
|
const g = new FormGroup({'one': new FormControl()}, validator);
|
|
expect(validator.calls.count()).toEqual(1);
|
|
|
|
g.disable();
|
|
expect(validator.calls.count()).toEqual(1);
|
|
|
|
g.setValue({one: 'value'});
|
|
expect(validator.calls.count()).toEqual(1);
|
|
|
|
g.enable();
|
|
expect(validator.calls.count()).toEqual(2);
|
|
});
|
|
|
|
describe('disabled errors', () => {
|
|
it('should clear out group errors when disabled', () => {
|
|
const g = new FormGroup({'one': new FormControl()}, () => ({'expected': true}));
|
|
expect(g.errors).toEqual({'expected': true});
|
|
|
|
g.disable();
|
|
expect(g.errors).toEqual(null);
|
|
|
|
g.enable();
|
|
expect(g.errors).toEqual({'expected': true});
|
|
});
|
|
|
|
it('should re-populate group errors when enabled from a child', () => {
|
|
const g = new FormGroup({'one': new FormControl()}, () => ({'expected': true}));
|
|
g.disable();
|
|
expect(g.errors).toEqual(null);
|
|
|
|
g.addControl('two', new FormControl());
|
|
expect(g.errors).toEqual({'expected': true});
|
|
});
|
|
|
|
it('should clear out async group errors when disabled', fakeAsync(() => {
|
|
const g =
|
|
new FormGroup({'one': new FormControl()}, null !, asyncValidator('expected'));
|
|
tick();
|
|
expect(g.errors).toEqual({'async': true});
|
|
|
|
g.disable();
|
|
expect(g.errors).toEqual(null);
|
|
|
|
g.enable();
|
|
tick();
|
|
expect(g.errors).toEqual({'async': true});
|
|
}));
|
|
|
|
it('should re-populate async group errors when enabled from a child', fakeAsync(() => {
|
|
const g =
|
|
new FormGroup({'one': new FormControl()}, null !, asyncValidator('expected'));
|
|
tick();
|
|
expect(g.errors).toEqual({'async': true});
|
|
|
|
g.disable();
|
|
expect(g.errors).toEqual(null);
|
|
|
|
g.addControl('two', new FormControl());
|
|
tick();
|
|
expect(g.errors).toEqual({'async': true});
|
|
}));
|
|
});
|
|
|
|
describe('disabled events', () => {
|
|
let logger: string[];
|
|
let c: FormControl;
|
|
let g: FormGroup;
|
|
let form: FormGroup;
|
|
|
|
beforeEach(() => {
|
|
logger = [];
|
|
c = new FormControl('', Validators.required);
|
|
g = new FormGroup({one: c});
|
|
form = new FormGroup({g: g});
|
|
});
|
|
|
|
it('should emit value change events in the right order', () => {
|
|
c.valueChanges.subscribe(() => logger.push('control'));
|
|
g.valueChanges.subscribe(() => logger.push('group'));
|
|
form.valueChanges.subscribe(() => logger.push('form'));
|
|
|
|
g.disable();
|
|
expect(logger).toEqual(['control', 'group', 'form']);
|
|
});
|
|
|
|
it('should emit status change events in the right order', () => {
|
|
c.statusChanges.subscribe(() => logger.push('control'));
|
|
g.statusChanges.subscribe(() => logger.push('group'));
|
|
form.statusChanges.subscribe(() => logger.push('form'));
|
|
|
|
g.disable();
|
|
expect(logger).toEqual(['control', 'group', 'form']);
|
|
});
|
|
|
|
it('should not emit value change events when emitEvent = false', () => {
|
|
c.valueChanges.subscribe(() => logger.push('control'));
|
|
g.valueChanges.subscribe(() => logger.push('group'));
|
|
form.valueChanges.subscribe(() => logger.push('form'));
|
|
|
|
g.disable({emitEvent: false});
|
|
expect(logger).toEqual([]);
|
|
g.enable({emitEvent: false});
|
|
expect(logger).toEqual([]);
|
|
});
|
|
|
|
it('should not emit status change events when emitEvent = false', () => {
|
|
c.statusChanges.subscribe(() => logger.push('control'));
|
|
g.statusChanges.subscribe(() => logger.push('group'));
|
|
form.statusChanges.subscribe(() => logger.push('form'));
|
|
|
|
g.disable({emitEvent: false});
|
|
expect(logger).toEqual([]);
|
|
g.enable({emitEvent: false});
|
|
expect(logger).toEqual([]);
|
|
});
|
|
|
|
});
|
|
|
|
});
|
|
|
|
describe('updateTreeValidity()', () => {
|
|
let c: FormControl, c2: FormControl, c3: FormControl;
|
|
let nested: FormGroup, form: FormGroup;
|
|
let logger: string[];
|
|
|
|
beforeEach(() => {
|
|
c = new FormControl('one');
|
|
c2 = new FormControl('two');
|
|
c3 = new FormControl('three');
|
|
nested = new FormGroup({one: c, two: c2});
|
|
form = new FormGroup({nested: nested, three: c3});
|
|
logger = [];
|
|
|
|
c.statusChanges.subscribe(() => logger.push('one'));
|
|
c2.statusChanges.subscribe(() => logger.push('two'));
|
|
c3.statusChanges.subscribe(() => logger.push('three'));
|
|
nested.statusChanges.subscribe(() => logger.push('nested'));
|
|
form.statusChanges.subscribe(() => logger.push('form'));
|
|
});
|
|
|
|
it('should update tree validity', () => {
|
|
(form as any)._updateTreeValidity();
|
|
expect(logger).toEqual(['one', 'two', 'nested', 'three', 'form']);
|
|
});
|
|
|
|
it('should not emit events when turned off', () => {
|
|
(form as any)._updateTreeValidity({emitEvent: false});
|
|
expect(logger).toEqual([]);
|
|
});
|
|
|
|
});
|
|
|
|
describe('setControl()', () => {
|
|
let c: FormControl;
|
|
let g: FormGroup;
|
|
|
|
beforeEach(() => {
|
|
c = new FormControl('one');
|
|
g = new FormGroup({one: c});
|
|
});
|
|
|
|
it('should replace existing control with new control', () => {
|
|
const c2 = new FormControl('new!', Validators.minLength(10));
|
|
g.setControl('one', c2);
|
|
|
|
expect(g.controls['one']).toEqual(c2);
|
|
expect(g.value).toEqual({one: 'new!'});
|
|
expect(g.valid).toBe(false);
|
|
});
|
|
|
|
it('should add control if control did not exist before', () => {
|
|
const c2 = new FormControl('new!', Validators.minLength(10));
|
|
g.setControl('two', c2);
|
|
|
|
expect(g.controls['two']).toEqual(c2);
|
|
expect(g.value).toEqual({one: 'one', two: 'new!'});
|
|
expect(g.valid).toBe(false);
|
|
});
|
|
|
|
it('should remove control if new control is null', () => {
|
|
g.setControl('one', null !);
|
|
expect(g.controls['one']).not.toBeDefined();
|
|
expect(g.value).toEqual({});
|
|
});
|
|
|
|
it('should only emit value change event once', () => {
|
|
const logger: string[] = [];
|
|
const c2 = new FormControl('new!');
|
|
g.valueChanges.subscribe(() => logger.push('change!'));
|
|
g.setControl('one', c2);
|
|
expect(logger).toEqual(['change!']);
|
|
});
|
|
|
|
});
|
|
|
|
describe('pending', () => {
|
|
let c: FormControl;
|
|
let g: FormGroup;
|
|
|
|
beforeEach(() => {
|
|
c = new FormControl('value');
|
|
g = new FormGroup({'one': c});
|
|
});
|
|
|
|
it('should be false after creating a control', () => { expect(g.pending).toEqual(false); });
|
|
|
|
it('should be true after changing the value of the control', () => {
|
|
c.markAsPending();
|
|
expect(g.pending).toEqual(true);
|
|
});
|
|
|
|
it('should not update the parent when onlySelf = true', () => {
|
|
c.markAsPending({onlySelf: true});
|
|
expect(g.pending).toEqual(false);
|
|
});
|
|
|
|
describe('status change events', () => {
|
|
let logger: string[];
|
|
|
|
beforeEach(() => {
|
|
logger = [];
|
|
g.statusChanges.subscribe((status) => logger.push(status));
|
|
});
|
|
|
|
it('should emit event after marking control as pending', () => {
|
|
c.markAsPending();
|
|
expect(logger).toEqual(['PENDING']);
|
|
});
|
|
|
|
it('should not emit event when onlySelf = true', () => {
|
|
c.markAsPending({onlySelf: true});
|
|
expect(logger).toEqual([]);
|
|
});
|
|
|
|
it('should not emit event when emitEvent = false', () => {
|
|
c.markAsPending({emitEvent: false});
|
|
expect(logger).toEqual([]);
|
|
});
|
|
|
|
it('should emit event when parent is markedAsPending', () => {
|
|
g.markAsPending();
|
|
expect(logger).toEqual(['PENDING']);
|
|
});
|
|
});
|
|
});
|
|
|
|
});
|
|
})();
|