117 lines
3.1 KiB
JavaScript
117 lines
3.1 KiB
JavaScript
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 {ImplicitReceiver, FieldRead} from 'change_detection/parser/ast';
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import {ClosureMap} from 'change_detection/parser/closure_map';
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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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ProtoRecord
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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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function ast(exp:string) {
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var parts = exp.split(".");
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var cm = new ClosureMap();
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return ListWrapper.reduce(parts, function (ast, fieldName) {
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return new FieldRead(ast, fieldName, cm.getter(fieldName));
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}, new ImplicitReceiver());
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}
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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(ast('name'), 'name');
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pwg.watch(ast('age'), 'age');
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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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it('should watch chained properties', function() {
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var address = new Address('Grenoble');
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var person = new Person('Victor', 36, address);
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var pwg = new ProtoWatchGroup();
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pwg.watch(ast('address.city'), 'address.city', 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(['address.city=Grenoble']);
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dispatcher.clear();
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cd.detectChanges();
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expect(dispatcher.log).toEqual([]);
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address.city = 'Mountain View';
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cd.detectChanges();
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expect(dispatcher.log).toEqual(['address.city=Mountain View']);
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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, address:Address = null) {
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this.name = name;
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this.age = age;
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this.address = address;
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}
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toString():string {
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var address = this.address == null ? '' : ' address=' + this.address.toString();
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return 'name=' + this.name +
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' age=' + this.age.toString() +
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address;
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}
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}
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class Address {
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constructor(city:string) {
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this.city = city;
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}
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toString():string {
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return this.city;
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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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