249 lines
8.6 KiB
TypeScript
249 lines
8.6 KiB
TypeScript
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import {
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AsyncTestCompleter,
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beforeEach,
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beforeEachBindings,
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ddescribe,
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describe,
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el,
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expect,
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iit,
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inject,
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it,
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xit,
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} from 'angular2/test_lib';
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import {DOM} from 'angular2/src/dom/dom_adapter';
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import {ListWrapper} from 'angular2/src/facade/collection';
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import {Component, View} from 'angular2/angular2';
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import {NgFor} from 'angular2/src/directives/ng_for';
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import {TestBed} from 'angular2/src/test_lib/test_bed';
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export function main() {
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describe('ng-for', () => {
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var TEMPLATE =
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'<div><copy-me template="ng-for #item of items">{{item.toString()}};</copy-me></div>';
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it('should reflect initial elements', inject([TestBed, AsyncTestCompleter], (tb, async) => {
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tb.createView(TestComponent, {html: TEMPLATE})
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.then((view) => {
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view.detectChanges();
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expect(DOM.getText(view.rootNodes[0])).toEqual('1;2;');
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async.done();
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});
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}));
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it('should reflect added elements', inject([TestBed, AsyncTestCompleter], (tb, async) => {
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tb.createView(TestComponent, {html: TEMPLATE})
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.then((view) => {
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view.detectChanges();
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ListWrapper.push(view.context.items, 3);
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view.detectChanges();
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expect(DOM.getText(view.rootNodes[0])).toEqual('1;2;3;');
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async.done();
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});
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}));
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it('should reflect removed elements', inject([TestBed, AsyncTestCompleter], (tb, async) => {
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tb.createView(TestComponent, {html: TEMPLATE})
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.then((view) => {
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view.detectChanges();
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ListWrapper.removeAt(view.context.items, 1);
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view.detectChanges();
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expect(DOM.getText(view.rootNodes[0])).toEqual('1;');
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async.done();
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});
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}));
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it('should reflect moved elements', inject([TestBed, AsyncTestCompleter], (tb, async) => {
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tb.createView(TestComponent, {html: TEMPLATE})
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.then((view) => {
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view.detectChanges();
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ListWrapper.removeAt(view.context.items, 0);
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ListWrapper.push(view.context.items, 1);
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view.detectChanges();
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expect(DOM.getText(view.rootNodes[0])).toEqual('2;1;');
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async.done();
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});
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}));
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it('should reflect a mix of all changes (additions/removals/moves)',
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inject([TestBed, AsyncTestCompleter], (tb, async) => {
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tb.createView(TestComponent, {html: TEMPLATE})
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.then((view) => {
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view.context.items = [0, 1, 2, 3, 4, 5];
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view.detectChanges();
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view.context.items = [6, 2, 7, 0, 4, 8];
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view.detectChanges();
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expect(DOM.getText(view.rootNodes[0])).toEqual('6;2;7;0;4;8;');
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async.done();
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});
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}));
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it('should iterate over an array of objects',
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inject([TestBed, AsyncTestCompleter], (tb, async) => {
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var template = '<ul><li template="ng-for #item of items">{{item["name"]}};</li></ul>';
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tb.createView(TestComponent, {html: template})
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.then((view) => {
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// INIT
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view.context.items = [{'name': 'misko'}, {'name': 'shyam'}];
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view.detectChanges();
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expect(DOM.getText(view.rootNodes[0])).toEqual('misko;shyam;');
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// GROW
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ListWrapper.push(view.context.items, {'name': 'adam'});
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view.detectChanges();
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expect(DOM.getText(view.rootNodes[0])).toEqual('misko;shyam;adam;');
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// SHRINK
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ListWrapper.removeAt(view.context.items, 2);
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ListWrapper.removeAt(view.context.items, 0);
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view.detectChanges();
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expect(DOM.getText(view.rootNodes[0])).toEqual('shyam;');
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async.done();
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});
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}));
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it('should gracefully handle nulls', inject([TestBed, AsyncTestCompleter], (tb, async) => {
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var template = '<ul><li template="ng-for #item of null">{{item}};</li></ul>';
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tb.createView(TestComponent, {html: template})
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.then((view) => {
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view.detectChanges();
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expect(DOM.getText(view.rootNodes[0])).toEqual('');
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async.done();
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});
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}));
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it('should gracefully handle ref changing to null and back',
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inject([TestBed, AsyncTestCompleter], (tb, async) => {
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tb.createView(TestComponent, {html: TEMPLATE})
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.then((view) => {
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view.detectChanges();
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expect(DOM.getText(view.rootNodes[0])).toEqual('1;2;');
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view.context.items = null;
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view.detectChanges();
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expect(DOM.getText(view.rootNodes[0])).toEqual('');
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view.context.items = [1, 2, 3];
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view.detectChanges();
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expect(DOM.getText(view.rootNodes[0])).toEqual('1;2;3;');
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async.done();
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});
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}));
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it('should throw on ref changing to string',
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inject([TestBed, AsyncTestCompleter], (tb, async) => {
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tb.createView(TestComponent, {html: TEMPLATE})
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.then((view) => {
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view.detectChanges();
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expect(DOM.getText(view.rootNodes[0])).toEqual('1;2;');
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view.context.items = 'whaaa';
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expect(() => view.detectChanges()).toThrowError();
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async.done();
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});
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}));
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it('should works with duplicates', inject([TestBed, AsyncTestCompleter], (tb, async) => {
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tb.createView(TestComponent, {html: TEMPLATE})
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.then((view) => {
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var a = new Foo();
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view.context.items = [a, a];
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view.detectChanges();
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expect(DOM.getText(view.rootNodes[0])).toEqual('foo;foo;');
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async.done();
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});
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}));
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it('should repeat over nested arrays', inject([TestBed, AsyncTestCompleter], (tb, async) => {
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var template = '<div>' +
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'<div template="ng-for #item of items">' +
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'<div template="ng-for #subitem of item">' +
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'{{subitem}}-{{item.length}};' +
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'</div>|' +
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'</div>' +
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'</div>';
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tb.createView(TestComponent, {html: template})
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.then((view) => {
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view.context.items = [['a', 'b'], ['c']];
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view.detectChanges();
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view.detectChanges();
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view.detectChanges();
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expect(DOM.getText(view.rootNodes[0])).toEqual('a-2;b-2;|c-1;|');
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view.context.items = [['e'], ['f', 'g']];
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view.detectChanges();
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expect(DOM.getText(view.rootNodes[0])).toEqual('e-1;|f-2;g-2;|');
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async.done();
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});
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}));
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it('should repeat over nested arrays with no intermediate element',
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inject([TestBed, AsyncTestCompleter], (tb, async) => {
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var template = '<div><template [ng-for] #item [ng-for-of]="items">' +
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'<div template="ng-for #subitem of item">' +
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'{{subitem}}-{{item.length}};' +
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'</div></template></div>';
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tb.createView(TestComponent, {html: template})
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.then((view) => {
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view.context.items = [['a', 'b'], ['c']];
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view.detectChanges();
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expect(DOM.getText(view.rootNodes[0])).toEqual('a-2;b-2;c-1;');
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view.context.items = [['e'], ['f', 'g']];
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view.detectChanges();
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expect(DOM.getText(view.rootNodes[0])).toEqual('e-1;f-2;g-2;');
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async.done();
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});
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}));
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it('should display indices correctly', inject([TestBed, AsyncTestCompleter], (tb, async) => {
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var template =
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'<div><copy-me template="ng-for: var item of items; var i=index">{{i.toString()}}</copy-me></div>';
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tb.createView(TestComponent, {html: template})
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.then((view) => {
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view.context.items = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
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view.detectChanges();
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expect(DOM.getText(view.rootNodes[0])).toEqual('0123456789');
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view.context.items = [1, 2, 6, 7, 4, 3, 5, 8, 9, 0];
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view.detectChanges();
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expect(DOM.getText(view.rootNodes[0])).toEqual('0123456789');
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async.done();
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});
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}));
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});
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}
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class Foo {
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toString() { return 'foo'; }
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}
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@Component({selector: 'test-cmp'})
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@View({directives: [NgFor]})
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class TestComponent {
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items: any;
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constructor() { this.items = [1, 2]; }
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}
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