65 lines
1.7 KiB
JavaScript
65 lines
1.7 KiB
JavaScript
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import {describe, it, xit, expect} from 'test_lib/test_lib';
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import {List, ListWrapper} from 'facade/collection';
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import {
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ChangeDetector,
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ProtoWatchGroup,
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WatchGroup,
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WatchGroupDispatcher
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} from 'change_detection/change_detector';
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import {Record} from 'change_detection/record';
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export function main() {
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describe('change_detection', function() {
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describe('ChangeDetection', function() {
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it('should do simple watching', function() {
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var person = new Person('misko', 38);
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var pwg = new ProtoWatchGroup();
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pwg.watch('name', 'name', false); // TODO(vicb): remove opt shallow when supported
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pwg.watch('age', 'age', false);
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var dispatcher = new LoggingDispatcher();
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var wg = pwg.instantiate(dispatcher);
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wg.setContext(person);
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var cd = new ChangeDetector(wg);
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cd.detectChanges();
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expect(dispatcher.log).toEqual(['name=misko', 'age=38']);
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dispatcher.clear();
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cd.detectChanges();
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expect(dispatcher.log).toEqual([]);
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person.age = 1;
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person.name = "Misko";
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cd.detectChanges();
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expect(dispatcher.log).toEqual(['name=Misko', 'age=1']);
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});
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});
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});
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}
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class Person {
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constructor(name:string, age:number) {
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this.name = name;
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this.age = age;
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}
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toString() {
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return 'name=' + this.name + ' age=' + this.age.toString();
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}
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}
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class LoggingDispatcher extends WatchGroupDispatcher {
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constructor() {
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this.log = null;
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this.clear();
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}
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clear() {
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this.log = ListWrapper.create();
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}
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onRecordChange(record:Record, context) {
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ListWrapper.push(this.log, context + '=' + record.currentValue.toString());
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}
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}
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