462 lines
18 KiB
TypeScript
462 lines
18 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 {describe, expect, it} from '@angular/core/testing/src/testing_internal';
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import {AbstractControl, AsyncValidatorFn, FormArray, FormControl, Validators} from '@angular/forms';
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import {normalizeAsyncValidator} from '@angular/forms/src/directives/normalize_validator';
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import {AsyncValidator, ValidationErrors, ValidatorFn} from '@angular/forms/src/directives/validators';
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import {Observable, of , timer} from 'rxjs';
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import {first, map} from 'rxjs/operators';
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(function() {
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function validator(key: string, error: any): ValidatorFn {
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return (c: AbstractControl) => {
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const r: ValidationErrors = {};
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r[key] = error;
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return r;
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};
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}
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class AsyncValidatorDirective implements AsyncValidator {
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constructor(private expected: string, private error: any) {}
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validate(c: any): Observable<ValidationErrors> {
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return Observable.create((obs: any) => {
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const error = this.expected !== c.value ? this.error : null;
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obs.next(error);
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obs.complete();
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});
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}
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}
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describe('Validators', () => {
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describe('min', () => {
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it('should not error on an empty string',
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() => { expect(Validators.min(2)(new FormControl(''))).toBeNull(); });
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it('should not error on null',
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() => { expect(Validators.min(2)(new FormControl(null))).toBeNull(); });
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it('should not error on undefined',
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() => { expect(Validators.min(2)(new FormControl(undefined))).toBeNull(); });
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it('should return null if NaN after parsing',
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() => { expect(Validators.min(2)(new FormControl('a'))).toBeNull(); });
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it('should return a validation error on small values', () => {
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expect(Validators.min(2)(new FormControl(1))).toEqual({'min': {'min': 2, 'actual': 1}});
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});
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it('should return a validation error on small values converted from strings', () => {
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expect(Validators.min(2)(new FormControl('1'))).toEqual({'min': {'min': 2, 'actual': '1'}});
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});
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it('should not error on big values',
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() => { expect(Validators.min(2)(new FormControl(3))).toBeNull(); });
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it('should not error on equal values',
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() => { expect(Validators.min(2)(new FormControl(2))).toBeNull(); });
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it('should not error on equal values when value is string',
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() => { expect(Validators.min(2)(new FormControl('2'))).toBeNull(); });
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it('should validate as expected when min value is a string', () => {
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expect(Validators.min('2' as any)(new FormControl(1))).toEqual({
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'min': {'min': '2', 'actual': 1}
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});
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});
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it('should return null if min value is undefined',
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() => { expect(Validators.min(undefined as any)(new FormControl(3))).toBeNull(); });
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it('should return null if min value is null',
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() => { expect(Validators.min(null as any)(new FormControl(3))).toBeNull(); });
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});
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describe('max', () => {
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it('should not error on an empty string',
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() => { expect(Validators.max(2)(new FormControl(''))).toBeNull(); });
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it('should not error on null',
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() => { expect(Validators.max(2)(new FormControl(null))).toBeNull(); });
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it('should not error on undefined',
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() => { expect(Validators.max(2)(new FormControl(undefined))).toBeNull(); });
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it('should return null if NaN after parsing',
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() => { expect(Validators.max(2)(new FormControl('aaa'))).toBeNull(); });
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it('should return a validation error on big values', () => {
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expect(Validators.max(2)(new FormControl(3))).toEqual({'max': {'max': 2, 'actual': 3}});
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});
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it('should return a validation error on big values converted from strings', () => {
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expect(Validators.max(2)(new FormControl('3'))).toEqual({'max': {'max': 2, 'actual': '3'}});
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});
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it('should not error on small values',
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() => { expect(Validators.max(2)(new FormControl(1))).toBeNull(); });
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it('should not error on equal values',
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() => { expect(Validators.max(2)(new FormControl(2))).toBeNull(); });
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it('should not error on equal values when value is string',
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() => { expect(Validators.max(2)(new FormControl('2'))).toBeNull(); });
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it('should validate as expected when max value is a string', () => {
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expect(Validators.max('2' as any)(new FormControl(3))).toEqual({
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'max': {'max': '2', 'actual': 3}
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});
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});
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it('should return null if max value is undefined',
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() => { expect(Validators.max(undefined as any)(new FormControl(3))).toBeNull(); });
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it('should return null if max value is null',
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() => { expect(Validators.max(null as any)(new FormControl(3))).toBeNull(); });
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});
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describe('required', () => {
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it('should error on an empty string',
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() => { expect(Validators.required(new FormControl(''))).toEqual({'required': true}); });
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it('should error on null',
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() => { expect(Validators.required(new FormControl(null))).toEqual({'required': true}); });
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it('should not error on undefined', () => {
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expect(Validators.required(new FormControl(undefined))).toEqual({'required': true});
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});
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it('should not error on a non-empty string',
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() => { expect(Validators.required(new FormControl('not empty'))).toBeNull(); });
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it('should accept zero as valid',
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() => { expect(Validators.required(new FormControl(0))).toBeNull(); });
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it('should error on an empty array',
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() => expect(Validators.required(new FormControl([]))).toEqual({'required': true}));
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it('should not error on a non-empty array',
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() => expect(Validators.required(new FormControl([1, 2]))).toBeNull());
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});
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describe('requiredTrue', () => {
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it('should error on false',
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() => expect(Validators.requiredTrue(new FormControl(false))).toEqual({'required': true}));
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it('should not error on true',
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() => expect(Validators.requiredTrue(new FormControl(true))).toBeNull());
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});
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describe('email', () => {
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it('should not error on an empty string',
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() => expect(Validators.email(new FormControl(''))).toBeNull());
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it('should not error on null',
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() => expect(Validators.email(new FormControl(null))).toBeNull());
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it('should error on invalid email',
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() => expect(Validators.email(new FormControl('some text'))).toEqual({'email': true}));
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it('should not error on valid email',
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() => expect(Validators.email(new FormControl('test@gmail.com'))).toBeNull());
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});
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describe('minLength', () => {
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it('should not error on an empty string',
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() => { expect(Validators.minLength(2)(new FormControl(''))).toBeNull(); });
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it('should not error on null',
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() => { expect(Validators.minLength(2)(new FormControl(null))).toBeNull(); });
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it('should not error on undefined',
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() => { expect(Validators.minLength(2)(new FormControl(undefined))).toBeNull(); });
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it('should not error on valid strings',
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() => { expect(Validators.minLength(2)(new FormControl('aa'))).toBeNull(); });
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it('should error on short strings', () => {
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expect(Validators.minLength(2)(new FormControl('a'))).toEqual({
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'minlength': {'requiredLength': 2, 'actualLength': 1}
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});
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});
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it('should not error when FormArray has valid length', () => {
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const fa = new FormArray([new FormControl(''), new FormControl('')]);
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expect(Validators.minLength(2)(fa)).toBeNull();
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});
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it('should error when FormArray has invalid length', () => {
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const fa = new FormArray([new FormControl('')]);
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expect(Validators.minLength(2)(fa)).toEqual({
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'minlength': {'requiredLength': 2, 'actualLength': 1}
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});
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});
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});
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describe('maxLength', () => {
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it('should not error on an empty string',
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() => { expect(Validators.maxLength(2)(new FormControl(''))).toBeNull(); });
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it('should not error on null',
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() => { expect(Validators.maxLength(2)(new FormControl(null))).toBeNull(); });
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it('should not error on undefined',
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() => { expect(Validators.maxLength(2)(new FormControl(undefined))).toBeNull(); });
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it('should not error on valid strings',
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() => { expect(Validators.maxLength(2)(new FormControl('aa'))).toBeNull(); });
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it('should error on long strings', () => {
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expect(Validators.maxLength(2)(new FormControl('aaa'))).toEqual({
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'maxlength': {'requiredLength': 2, 'actualLength': 3}
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});
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});
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it('should not error when FormArray has valid length', () => {
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const fa = new FormArray([new FormControl(''), new FormControl('')]);
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expect(Validators.maxLength(2)(fa)).toBeNull();
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});
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it('should error when FormArray has invalid length', () => {
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const fa = new FormArray([new FormControl(''), new FormControl('')]);
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expect(Validators.maxLength(1)(fa)).toEqual({
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'maxlength': {'requiredLength': 1, 'actualLength': 2}
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});
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});
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});
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describe('pattern', () => {
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it('should not error on an empty string',
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() => { expect(Validators.pattern('[a-zA-Z ]+')(new FormControl(''))).toBeNull(); });
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it('should not error on null',
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() => { expect(Validators.pattern('[a-zA-Z ]+')(new FormControl(null))).toBeNull(); });
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it('should not error on undefined', () => {
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expect(Validators.pattern('[a-zA-Z ]+')(new FormControl(undefined))).toBeNull();
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});
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it('should not error on null value and "null" pattern',
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() => { expect(Validators.pattern('null')(new FormControl(null))).toBeNull(); });
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it('should not error on valid strings',
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() => expect(Validators.pattern('[a-zA-Z ]*')(new FormControl('aaAA'))).toBeNull());
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it('should error on failure to match string', () => {
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expect(Validators.pattern('[a-zA-Z ]*')(new FormControl('aaa0'))).toEqual({
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'pattern': {'requiredPattern': '^[a-zA-Z ]*$', 'actualValue': 'aaa0'}
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});
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});
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it('should accept RegExp object', () => {
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const pattern: RegExp = new RegExp('[a-zA-Z ]+');
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expect(Validators.pattern(pattern)(new FormControl('aaAA'))).toBeNull();
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});
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it('should error on failure to match RegExp object', () => {
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const pattern: RegExp = new RegExp('^[a-zA-Z ]*$');
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expect(Validators.pattern(pattern)(new FormControl('aaa0'))).toEqual({
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'pattern': {'requiredPattern': '/^[a-zA-Z ]*$/', 'actualValue': 'aaa0'}
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});
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});
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it('should not error on "null" pattern',
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() => expect(Validators.pattern(null !)(new FormControl('aaAA'))).toBeNull());
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it('should not error on "undefined" pattern',
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() => expect(Validators.pattern(undefined !)(new FormControl('aaAA'))).toBeNull());
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it('should work with pattern string containing both boundary symbols',
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() => expect(Validators.pattern('^[aA]*$')(new FormControl('aaAA'))).toBeNull());
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it('should work with pattern string containing only start boundary symbols',
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() => expect(Validators.pattern('^[aA]*')(new FormControl('aaAA'))).toBeNull());
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it('should work with pattern string containing only end boundary symbols',
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() => expect(Validators.pattern('[aA]*$')(new FormControl('aaAA'))).toBeNull());
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it('should work with pattern string not containing any boundary symbols',
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() => expect(Validators.pattern('[aA]*')(new FormControl('aaAA'))).toBeNull());
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});
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describe('compose', () => {
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it('should return null when given null',
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() => { expect(Validators.compose(null !)).toBe(null); });
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it('should collect errors from all the validators', () => {
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const c = Validators.compose([validator('a', true), validator('b', true)]) !;
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expect(c(new FormControl(''))).toEqual({'a': true, 'b': true});
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});
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it('should run validators left to right', () => {
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const c = Validators.compose([validator('a', 1), validator('a', 2)]) !;
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expect(c(new FormControl(''))).toEqual({'a': 2});
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});
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it('should return null when no errors', () => {
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const c = Validators.compose([Validators.nullValidator, Validators.nullValidator]) !;
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expect(c(new FormControl(''))).toBeNull();
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});
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it('should ignore nulls', () => {
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const c = Validators.compose([null !, Validators.required]) !;
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expect(c(new FormControl(''))).toEqual({'required': true});
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});
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});
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describe('composeAsync', () => {
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describe('promises', () => {
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function promiseValidator(response: {[key: string]: any}): AsyncValidatorFn {
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return (c: AbstractControl) => {
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const res = c.value != 'expected' ? response : null;
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return Promise.resolve(res);
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};
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}
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it('should return null when given null',
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() => { expect(Validators.composeAsync(null !)).toBeNull(); });
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it('should collect errors from all the validators', fakeAsync(() => {
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const v = Validators.composeAsync(
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[promiseValidator({'one': true}), promiseValidator({'two': true})]) !;
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let errorMap: {[key: string]: any} = undefined !;
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(v(new FormControl('invalid')) as Observable<ValidationErrors|null>)
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.pipe(first())
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.subscribe((errors: {[key: string]: any}) => errorMap = errors);
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tick();
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expect(errorMap).toEqual({'one': true, 'two': true});
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}));
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it('should normalize and evaluate async validator-directives correctly', fakeAsync(() => {
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const v = Validators.composeAsync([normalizeAsyncValidator(
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new AsyncValidatorDirective('expected', {'one': true}))]) !;
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let errorMap: {[key: string]: any} = undefined !;
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(v(new FormControl('invalid')) as Observable<ValidationErrors|null>)
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.pipe(first())
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.subscribe((errors: {[key: string]: any}) => errorMap = errors);
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tick();
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expect(errorMap).toEqual({'one': true});
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}));
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it('should return null when no errors', fakeAsync(() => {
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const v = Validators.composeAsync([promiseValidator({'one': true})]) !;
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let errorMap: {[key: string]: any} = undefined !;
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(v(new FormControl('expected')) as Observable<ValidationErrors|null>)
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.pipe(first())
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.subscribe((errors: {[key: string]: any}) => errorMap = errors);
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tick();
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expect(errorMap).toBeNull();
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}));
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it('should ignore nulls', fakeAsync(() => {
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const v = Validators.composeAsync([promiseValidator({'one': true}), null !]) !;
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let errorMap: {[key: string]: any} = undefined !;
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(v(new FormControl('invalid')) as Observable<ValidationErrors|null>)
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.pipe(first())
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.subscribe((errors: {[key: string]: any}) => errorMap = errors);
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tick();
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expect(errorMap).toEqual({'one': true});
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}));
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});
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describe('observables', () => {
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function observableValidator(response: {[key: string]: any}): AsyncValidatorFn {
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return (c: AbstractControl) => {
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const res = c.value != 'expected' ? response : null;
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return of (res);
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};
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}
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it('should return null when given null',
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() => { expect(Validators.composeAsync(null !)).toBeNull(); });
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it('should collect errors from all the validators', () => {
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const v = Validators.composeAsync(
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[observableValidator({'one': true}), observableValidator({'two': true})]) !;
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let errorMap: {[key: string]: any} = undefined !;
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(v(new FormControl('invalid')) as Observable<ValidationErrors|null>)
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.pipe(first())
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.subscribe((errors: {[key: string]: any}) => errorMap = errors);
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expect(errorMap).toEqual({'one': true, 'two': true});
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});
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it('should normalize and evaluate async validator-directives correctly', () => {
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const v = Validators.composeAsync(
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[normalizeAsyncValidator(new AsyncValidatorDirective('expected', {'one': true}))]) !;
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let errorMap: {[key: string]: any} = undefined !;
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(v(new FormControl('invalid')) as Observable<ValidationErrors|null>)
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.pipe(first())
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.subscribe((errors: {[key: string]: any}) => errorMap = errors) !;
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expect(errorMap).toEqual({'one': true});
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});
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it('should return null when no errors', () => {
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const v = Validators.composeAsync([observableValidator({'one': true})]) !;
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let errorMap: {[key: string]: any} = undefined !;
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(v(new FormControl('expected')) as Observable<ValidationErrors|null>)
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.pipe(first())
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.subscribe((errors: {[key: string]: any}) => errorMap = errors);
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expect(errorMap).toBeNull();
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});
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it('should ignore nulls', () => {
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const v = Validators.composeAsync([observableValidator({'one': true}), null !]) !;
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let errorMap: {[key: string]: any} = undefined !;
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(v(new FormControl('invalid')) as Observable<ValidationErrors|null>)
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.pipe(first())
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.subscribe((errors: {[key: string]: any}) => errorMap = errors);
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expect(errorMap).toEqual({'one': true});
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});
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it('should wait for all validators before setting errors', fakeAsync(() => {
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function getTimerObs(time: number, errorMap: {[key: string]: any}): AsyncValidatorFn {
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return (c: AbstractControl) => { return timer(time).pipe(map(() => errorMap)); };
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}
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const v = Validators.composeAsync(
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[getTimerObs(100, {one: true}), getTimerObs(200, {two: true})]) !;
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let errorMap: {[key: string]: any} = undefined !;
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(v(new FormControl('invalid')) as Observable<ValidationErrors|null>)
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.pipe(first())
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.subscribe((errors: {[key: string]: any}) => errorMap = errors);
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tick(100);
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expect(errorMap).not.toBeDefined(
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`Expected errors not to be set until all validators came back.`);
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tick(100);
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expect(errorMap).toEqual(
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{one: true, two: true}, `Expected errors to merge once all validators resolved.`);
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}));
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});
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});
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});
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})();
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