angular-docs-cn/modules/@angular/forms/test/form_builder_spec.ts

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/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {beforeEach, describe, expect, it} from '@angular/core/testing/testing_internal';
import {FormBuilder} from '@angular/forms';
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export function main() {
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function syncValidator(_: any /** TODO #9100 */): any /** TODO #9100 */ { return null; }
function asyncValidator(_: any /** TODO #9100 */) { return Promise.resolve(null); }
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describe('Form Builder', () => {
let b: FormBuilder;
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beforeEach(() => { b = new FormBuilder(); });
it('should create controls from a value', () => {
const g = b.group({'login': 'some value'});
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expect(g.controls['login'].value).toEqual('some value');
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});
it('should create controls from a boxed value', () => {
const g = b.group({'login': {value: 'some value', disabled: true}});
expect(g.controls['login'].value).toEqual('some value');
expect(g.controls['login'].disabled).toEqual(true);
});
it('should create controls from an array', () => {
const g = b.group(
{'login': ['some value'], 'password': ['some value', syncValidator, asyncValidator]});
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expect(g.controls['login'].value).toEqual('some value');
expect(g.controls['password'].value).toEqual('some value');
expect(g.controls['password'].validator).toEqual(syncValidator);
expect(g.controls['password'].asyncValidator).toEqual(asyncValidator);
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});
it('should use controls', () => {
const g = b.group({'login': b.control('some value', syncValidator, asyncValidator)});
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expect(g.controls['login'].value).toEqual('some value');
expect(g.controls['login'].validator).toBe(syncValidator);
expect(g.controls['login'].asyncValidator).toBe(asyncValidator);
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});
it('should create groups with a custom validator', () => {
const g = b.group(
{'login': 'some value'}, {'validator': syncValidator, 'asyncValidator': asyncValidator});
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expect(g.validator).toBe(syncValidator);
expect(g.asyncValidator).toBe(asyncValidator);
});
it('should create control arrays', () => {
const c = b.control('three');
const a = b.array(
['one', ['two', syncValidator], c, b.array(['four'])], syncValidator, asyncValidator);
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expect(a.value).toEqual(['one', 'two', 'three', ['four']]);
expect(a.validator).toBe(syncValidator);
expect(a.asyncValidator).toBe(asyncValidator);
});
});
}