angular-cn/modules/@angular/common/test/forms/model_spec.ts

828 lines
27 KiB
TypeScript

import {ddescribe, describe, it, iit, xit, expect, beforeEach, afterEach, inject,} from '@angular/core/testing/testing_internal';
import {fakeAsync, flushMicrotasks, Log, tick} from '@angular/core/testing';
import {AsyncTestCompleter} from '@angular/core/testing/testing_internal';
import {ControlGroup, Control, ControlArray, Validators} from '@angular/common';
import {IS_DART, isPresent} from '../../src/facade/lang';
import {PromiseWrapper} from '../../src/facade/promise';
import {TimerWrapper, ObservableWrapper, EventEmitter} from '../../src/facade/async';
export function main() {
function asyncValidator(expected: any /** TODO #9100 */, timeouts = /*@ts2dart_const*/ {}) {
return (c: any /** TODO #9100 */) => {
var completer = PromiseWrapper.completer();
var t = isPresent((timeouts as any /** TODO #9100 */)[c.value]) ?
(timeouts as any /** TODO #9100 */)[c.value] :
0;
var res = c.value != expected ? {'async': true} : null;
if (t == 0) {
completer.resolve(res);
} else {
TimerWrapper.setTimeout(() => { completer.resolve(res); }, t);
}
return completer.promise;
};
}
function asyncValidatorReturningObservable(c: any /** TODO #9100 */) {
var e = new EventEmitter();
PromiseWrapper.scheduleMicrotask(() => ObservableWrapper.callEmit(e, {'async': true}));
return e;
}
describe('Form Model', () => {
describe('Control', () => {
it('should default the value to null', () => {
var c = new Control();
expect(c.value).toBe(null);
});
describe('validator', () => {
it('should run validator with the initial value', () => {
var c = new Control('value', Validators.required);
expect(c.valid).toEqual(true);
});
it('should rerun the validator when the value changes', () => {
var c = new Control('value', Validators.required);
c.updateValue(null);
expect(c.valid).toEqual(false);
});
it('should return errors', () => {
var c = new Control(null, Validators.required);
expect(c.errors).toEqual({'required': true});
});
});
describe('asyncValidator', () => {
it('should run validator with the initial value', fakeAsync(() => {
var c = new Control('value', null, asyncValidator('expected'));
tick();
expect(c.valid).toEqual(false);
expect(c.errors).toEqual({'async': true});
}));
it('should support validators returning observables', fakeAsync(() => {
var c = new Control('value', null, asyncValidatorReturningObservable);
tick();
expect(c.valid).toEqual(false);
expect(c.errors).toEqual({'async': true});
}));
it('should rerun the validator when the value changes', fakeAsync(() => {
var c = new Control('value', null, asyncValidator('expected'));
c.updateValue('expected');
tick();
expect(c.valid).toEqual(true);
}));
it('should run the async validator only when the sync validator passes', fakeAsync(() => {
var c = new Control('', Validators.required, asyncValidator('expected'));
tick();
expect(c.errors).toEqual({'required': true});
c.updateValue('some value');
tick();
expect(c.errors).toEqual({'async': true});
}));
it('should mark the control as pending while running the async validation',
fakeAsync(() => {
var c = new Control('', null, asyncValidator('expected'));
expect(c.pending).toEqual(true);
tick();
expect(c.pending).toEqual(false);
}));
it('should only use the latest async validation run', fakeAsync(() => {
var c =
new Control('', null, asyncValidator('expected', {'long': 200, 'expected': 100}));
c.updateValue('long');
c.updateValue('expected');
tick(300);
expect(c.valid).toEqual(true);
}));
});
describe('dirty', () => {
it('should be false after creating a control', () => {
var c = new Control('value');
expect(c.dirty).toEqual(false);
});
it('should be true after changing the value of the control', () => {
var c = new Control('value');
c.markAsDirty();
expect(c.dirty).toEqual(true);
});
});
describe('updateValue', () => {
var g: any /** TODO #9100 */, c: any /** TODO #9100 */;
beforeEach(() => {
c = new Control('oldValue');
g = new ControlGroup({'one': c});
});
it('should update the value of the control', () => {
c.updateValue('newValue');
expect(c.value).toEqual('newValue');
});
it('should invoke ngOnChanges if it is present', () => {
var ngOnChanges: any /** TODO #9100 */;
c.registerOnChange((v: any /** TODO #9100 */) => ngOnChanges = ['invoked', v]);
c.updateValue('newValue');
expect(ngOnChanges).toEqual(['invoked', 'newValue']);
});
it('should not invoke on change when explicitly specified', () => {
var onChange: any /** TODO #9100 */ = null;
c.registerOnChange((v: any /** TODO #9100 */) => onChange = ['invoked', v]);
c.updateValue('newValue', {emitModelToViewChange: false});
expect(onChange).toBeNull();
});
it('should update the parent', () => {
c.updateValue('newValue');
expect(g.value).toEqual({'one': 'newValue'});
});
it('should not update the parent when explicitly specified', () => {
c.updateValue('newValue', {onlySelf: true});
expect(g.value).toEqual({'one': 'oldValue'});
});
it('should fire an event', fakeAsync(() => {
ObservableWrapper.subscribe(
c.valueChanges, (value) => { expect(value).toEqual('newValue'); });
c.updateValue('newValue');
tick();
}));
it('should not fire an event when explicitly specified', fakeAsync(() => {
ObservableWrapper.subscribe(c.valueChanges, (value) => { throw 'Should not happen'; });
c.updateValue('newValue', {emitEvent: false});
tick();
}));
});
describe('valueChanges & statusChanges', () => {
var c: any /** TODO #9100 */;
beforeEach(() => { c = new Control('old', Validators.required); });
it('should fire an event after the value has been updated',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
ObservableWrapper.subscribe(c.valueChanges, (value) => {
expect(c.value).toEqual('new');
expect(value).toEqual('new');
async.done();
});
c.updateValue('new');
}));
it('should fire an event after the status has been updated to invalid', fakeAsync(() => {
ObservableWrapper.subscribe(c.statusChanges, (status) => {
expect(c.status).toEqual('INVALID');
expect(status).toEqual('INVALID');
});
c.updateValue('');
tick();
}));
it('should fire an event after the status has been updated to pending', fakeAsync(() => {
var c = new Control('old', Validators.required, asyncValidator('expected'));
var log: any[] /** TODO #9100 */ = [];
ObservableWrapper.subscribe(c.valueChanges, (value) => log.push(`value: '${value}'`));
ObservableWrapper.subscribe(
c.statusChanges, (status) => log.push(`status: '${status}'`));
c.updateValue('');
tick();
c.updateValue('nonEmpty');
tick();
c.updateValue('expected');
tick();
expect(log).toEqual([
'' +
'value: \'\'',
'status: \'INVALID\'',
'value: \'nonEmpty\'',
'status: \'PENDING\'',
'status: \'INVALID\'',
'value: \'expected\'',
'status: \'PENDING\'',
'status: \'VALID\'',
]);
}));
// TODO: remove the if statement after making observable delivery sync
if (!IS_DART) {
it('should update set errors and status before emitting an event',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
c.valueChanges.subscribe((value: any /** TODO #9100 */) => {
expect(c.valid).toEqual(false);
expect(c.errors).toEqual({'required': true});
async.done();
});
c.updateValue('');
}));
}
it('should return a cold observable',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
c.updateValue('will be ignored');
ObservableWrapper.subscribe(c.valueChanges, (value) => {
expect(value).toEqual('new');
async.done();
});
c.updateValue('new');
}));
});
describe('setErrors', () => {
it('should set errors on a control', () => {
var c = new Control('someValue');
c.setErrors({'someError': true});
expect(c.valid).toEqual(false);
expect(c.errors).toEqual({'someError': true});
});
it('should reset the errors and validity when the value changes', () => {
var c = new Control('someValue', Validators.required);
c.setErrors({'someError': true});
c.updateValue('');
expect(c.errors).toEqual({'required': true});
});
it('should update the parent group\'s validity', () => {
var c = new Control('someValue');
var g = new ControlGroup({'one': c});
expect(g.valid).toEqual(true);
c.setErrors({'someError': true});
expect(g.valid).toEqual(false);
});
it('should not reset parent\'s errors', () => {
var c = new Control('someValue');
var g = new ControlGroup({'one': c});
g.setErrors({'someGroupError': true});
c.setErrors({'someError': true});
expect(g.errors).toEqual({'someGroupError': true});
});
it('should reset errors when updating a value', () => {
var c = new Control('oldValue');
var g = new ControlGroup({'one': c});
g.setErrors({'someGroupError': true});
c.setErrors({'someError': true});
c.updateValue('newValue');
expect(c.errors).toEqual(null);
expect(g.errors).toEqual(null);
});
});
});
describe('ControlGroup', () => {
describe('value', () => {
it('should be the reduced value of the child controls', () => {
var g = new ControlGroup({'one': new Control('111'), 'two': new Control('222')});
expect(g.value).toEqual({'one': '111', 'two': '222'});
});
it('should be empty when there are no child controls', () => {
var g = new ControlGroup({});
expect(g.value).toEqual({});
});
it('should support nested groups', () => {
var g = new ControlGroup(
{'one': new Control('111'), 'nested': new ControlGroup({'two': new Control('222')})});
expect(g.value).toEqual({'one': '111', 'nested': {'two': '222'}});
(<Control>(g.controls['nested'].find('two'))).updateValue('333');
expect(g.value).toEqual({'one': '111', 'nested': {'two': '333'}});
});
});
describe('adding and removing controls', () => {
it('should update value and validity when control is added', () => {
var g = new ControlGroup({'one': new Control('1')});
expect(g.value).toEqual({'one': '1'});
expect(g.valid).toBe(true);
g.addControl('two', new Control('2', Validators.minLength(10)));
expect(g.value).toEqual({'one': '1', 'two': '2'});
expect(g.valid).toBe(false);
});
it('should update value and validity when control is removed', () => {
var g = new ControlGroup(
{'one': new Control('1'), 'two': new Control('2', Validators.minLength(10))});
expect(g.value).toEqual({'one': '1', 'two': '2'});
expect(g.valid).toBe(false);
g.removeControl('two');
expect(g.value).toEqual({'one': '1'});
expect(g.valid).toBe(true);
});
});
describe('errors', () => {
it('should run the validator when the value changes', () => {
var simpleValidator = (c: any /** TODO #9100 */) =>
c.controls['one'].value != 'correct' ? {'broken': true} : null;
var c = new Control(null);
var g = new ControlGroup({'one': c}, null, simpleValidator);
c.updateValue('correct');
expect(g.valid).toEqual(true);
expect(g.errors).toEqual(null);
c.updateValue('incorrect');
expect(g.valid).toEqual(false);
expect(g.errors).toEqual({'broken': true});
});
});
describe('dirty', () => {
var c: any /** TODO #9100 */, g: any /** TODO #9100 */;
beforeEach(() => {
c = new Control('value');
g = new ControlGroup({'one': c});
});
it('should be false after creating a control', () => { expect(g.dirty).toEqual(false); });
it('should be false after changing the value of the control', () => {
c.markAsDirty();
expect(g.dirty).toEqual(true);
});
});
describe('optional components', () => {
describe('contains', () => {
var group: any /** TODO #9100 */;
beforeEach(() => {
group = new ControlGroup(
{
'required': new Control('requiredValue'),
'optional': new Control('optionalValue')
},
{'optional': false});
});
// rename contains into has
it('should return false when the component is not included',
() => { 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 included', () => {
expect(group.contains('required')).toEqual(true);
group.include('optional');
expect(group.contains('optional')).toEqual(true);
});
});
it('should not include an inactive component into the group value', () => {
var group = new ControlGroup(
{'required': new Control('requiredValue'), 'optional': new Control('optionalValue')},
{'optional': false});
expect(group.value).toEqual({'required': 'requiredValue'});
group.include('optional');
expect(group.value).toEqual({'required': 'requiredValue', 'optional': 'optionalValue'});
});
it('should not run Validators on an inactive component', () => {
var group = new ControlGroup(
{
'required': new Control('requiredValue', Validators.required),
'optional': new Control('', Validators.required)
},
{'optional': false});
expect(group.valid).toEqual(true);
group.include('optional');
expect(group.valid).toEqual(false);
});
});
describe('valueChanges', () => {
var g: any /** TODO #9100 */, c1: any /** TODO #9100 */, c2: any /** TODO #9100 */;
beforeEach(() => {
c1 = new Control('old1');
c2 = new Control('old2');
g = new ControlGroup({'one': c1, 'two': c2}, {'two': true});
});
it('should fire an event after the value has been updated',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
ObservableWrapper.subscribe(g.valueChanges, (value) => {
expect(g.value).toEqual({'one': 'new1', 'two': 'old2'});
expect(value).toEqual({'one': 'new1', 'two': 'old2'});
async.done();
});
c1.updateValue('new1');
}));
it('should fire an event after the control\'s observable fired an event',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
var controlCallbackIsCalled = false;
ObservableWrapper.subscribe(
c1.valueChanges, (value) => { controlCallbackIsCalled = true; });
ObservableWrapper.subscribe(g.valueChanges, (value) => {
expect(controlCallbackIsCalled).toBe(true);
async.done();
});
c1.updateValue('new1');
}));
it('should fire an event when a control is excluded',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
ObservableWrapper.subscribe(g.valueChanges, (value) => {
expect(value).toEqual({'one': 'old1'});
async.done();
});
g.exclude('two');
}));
it('should fire an event when a control is included',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
g.exclude('two');
ObservableWrapper.subscribe(g.valueChanges, (value) => {
expect(value).toEqual({'one': 'old1', 'two': 'old2'});
async.done();
});
g.include('two');
}));
it('should fire an event every time a control is updated',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
var loggedValues: any[] /** TODO #9100 */ = [];
ObservableWrapper.subscribe(g.valueChanges, (value) => {
loggedValues.push(value);
if (loggedValues.length == 2) {
expect(loggedValues).toEqual([
{'one': 'new1', 'two': 'old2'}, {'one': 'new1', 'two': 'new2'}
]);
async.done();
}
});
c1.updateValue('new1');
c2.updateValue('new2');
}));
xit('should not fire an event when an excluded control is updated',
inject(
[AsyncTestCompleter], (async: AsyncTestCompleter) => {
// hard to test without hacking zones
}));
});
describe('getError', () => {
it('should return the error when it is present', () => {
var c = new Control('', Validators.required);
var g = new ControlGroup({'one': c});
expect(c.getError('required')).toEqual(true);
expect(g.getError('required', ['one'])).toEqual(true);
});
it('should return null otherwise', () => {
var c = new Control('not empty', Validators.required);
var g = new ControlGroup({'one': c});
expect(c.getError('invalid')).toEqual(null);
expect(g.getError('required', ['one'])).toEqual(null);
expect(g.getError('required', ['invalid'])).toEqual(null);
});
});
describe('asyncValidator', () => {
it('should run the async validator', fakeAsync(() => {
var c = new Control('value');
var g = new ControlGroup({'one': c}, null, null, asyncValidator('expected'));
expect(g.pending).toEqual(true);
tick(1);
expect(g.errors).toEqual({'async': true});
expect(g.pending).toEqual(false);
}));
it('should set the parent group\'s status to pending', fakeAsync(() => {
var c = new Control('value', null, asyncValidator('expected'));
var g = new ControlGroup({'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(() => {
var c = new Control('value', null, asyncValidator('expected'));
var g = new ControlGroup({'one': c}, null, null, asyncValidator('expected'));
tick(1);
expect(g.errors).toEqual({'async': true});
expect(g.find(['one']).errors).toEqual({'async': true});
}));
})
});
describe('ControlArray', () => {
describe('adding/removing', () => {
var a: ControlArray;
var c1: any /** TODO #9100 */, c2: any /** TODO #9100 */, c3: any /** TODO #9100 */;
beforeEach(() => {
a = new ControlArray([]);
c1 = new Control(1);
c2 = new Control(2);
c3 = new Control(3);
});
it('should support pushing', () => {
a.push(c1);
expect(a.length).toEqual(1);
expect(a.controls).toEqual([c1]);
});
it('should support removing', () => {
a.push(c1);
a.push(c2);
a.push(c3);
a.removeAt(1);
expect(a.controls).toEqual([c1, c3]);
});
it('should support inserting', () => {
a.push(c1);
a.push(c3);
a.insert(1, c2);
expect(a.controls).toEqual([c1, c2, c3]);
});
});
describe('value', () => {
it('should be the reduced value of the child controls', () => {
var a = new ControlArray([new Control(1), new Control(2)]);
expect(a.value).toEqual([1, 2]);
});
it('should be an empty array when there are no child controls', () => {
var a = new ControlArray([]);
expect(a.value).toEqual([]);
});
});
describe('errors', () => {
it('should run the validator when the value changes', () => {
var simpleValidator = (c: any /** TODO #9100 */) =>
c.controls[0].value != 'correct' ? {'broken': true} : null;
var c = new Control(null);
var g = new ControlArray([c], simpleValidator);
c.updateValue('correct');
expect(g.valid).toEqual(true);
expect(g.errors).toEqual(null);
c.updateValue('incorrect');
expect(g.valid).toEqual(false);
expect(g.errors).toEqual({'broken': true});
});
});
describe('dirty', () => {
var c: Control;
var a: ControlArray;
beforeEach(() => {
c = new Control('value');
a = new ControlArray([c]);
});
it('should be false after creating a control', () => { expect(a.dirty).toEqual(false); });
it('should be false after changing the value of the control', () => {
c.markAsDirty();
expect(a.dirty).toEqual(true);
});
});
describe('pending', () => {
var c: Control;
var a: ControlArray;
beforeEach(() => {
c = new Control('value');
a = new ControlArray([c]);
});
it('should be false after creating a control', () => {
expect(c.pending).toEqual(false);
expect(a.pending).toEqual(false);
});
it('should be true after changing the value of the control', () => {
c.markAsPending();
expect(c.pending).toEqual(true);
expect(a.pending).toEqual(true);
});
it('should not update the parent when onlySelf = true', () => {
c.markAsPending({onlySelf: true});
expect(c.pending).toEqual(true);
expect(a.pending).toEqual(false);
});
});
describe('valueChanges', () => {
var a: ControlArray;
var c1: any /** TODO #9100 */, c2: any /** TODO #9100 */;
beforeEach(() => {
c1 = new Control('old1');
c2 = new Control('old2');
a = new ControlArray([c1, c2]);
});
it('should fire an event after the value has been updated',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
ObservableWrapper.subscribe(a.valueChanges, (value) => {
expect(a.value).toEqual(['new1', 'old2']);
expect(value).toEqual(['new1', 'old2']);
async.done();
});
c1.updateValue('new1');
}));
it('should fire an event after the control\'s observable fired an event',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
var controlCallbackIsCalled = false;
ObservableWrapper.subscribe(
c1.valueChanges, (value) => { controlCallbackIsCalled = true; });
ObservableWrapper.subscribe(a.valueChanges, (value) => {
expect(controlCallbackIsCalled).toBe(true);
async.done();
});
c1.updateValue('new1');
}));
it('should fire an event when a control is removed',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
ObservableWrapper.subscribe(a.valueChanges, (value) => {
expect(value).toEqual(['old1']);
async.done();
});
a.removeAt(1);
}));
it('should fire an event when a control is added',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
a.removeAt(1);
ObservableWrapper.subscribe(a.valueChanges, (value) => {
expect(value).toEqual(['old1', 'old2']);
async.done();
});
a.push(c2);
}));
});
describe('find', () => {
it('should return null when path is null', () => {
var g = new ControlGroup({});
expect(g.find(null)).toEqual(null);
});
it('should return null when path is empty', () => {
var g = new ControlGroup({});
expect(g.find([])).toEqual(null);
});
it('should return null when path is invalid', () => {
var g = new ControlGroup({});
expect(g.find(['one', 'two'])).toEqual(null);
});
it('should return a child of a control group', () => {
var g = new ControlGroup(
{'one': new Control('111'), 'nested': new ControlGroup({'two': new Control('222')})});
expect(g.find(['nested', 'two']).value).toEqual('222');
expect(g.find(['one']).value).toEqual('111');
expect(g.find('nested/two').value).toEqual('222');
expect(g.find('one').value).toEqual('111');
});
it('should return an element of an array', () => {
var g = new ControlGroup({'array': new ControlArray([new Control('111')])});
expect(g.find(['array', 0]).value).toEqual('111');
});
});
describe('asyncValidator', () => {
it('should run the async validator', fakeAsync(() => {
var c = new Control('value');
var g = new ControlArray([c], null, asyncValidator('expected'));
expect(g.pending).toEqual(true);
tick(1);
expect(g.errors).toEqual({'async': true});
expect(g.pending).toEqual(false);
}));
})
});
});
}