angular-cn/packages/core/test/render3/outputs_spec.ts
Kara Erickson 0de2a5e408 refactor(core): rename ngFactoryDef to ɵfac (#33116)
Factory defs are not considered public API, so the property
that contains them should be prefixed with Angular's marker
for "private" ('ɵ') to discourage apps from relying on def
APIs directly.

This commit adds the prefix and shortens the name from
ngFactoryDef to fac. This is because property names
cannot be minified by Uglify without turning on property
mangling (which most apps have turned off) and are thus
size-sensitive.

Note that the other "defs" (ngPipeDef, etc) will be
prefixed and shortened in follow-up PRs, in an attempt to
limit how large and conflict-y this change is.

PR Close #33116
2019-10-14 20:27:25 +00:00

113 lines
3.5 KiB
TypeScript

/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {EventEmitter} from '@angular/core';
import {ɵɵdefineComponent, ɵɵdefineDirective} from '../../src/render3/index';
import {ɵɵcontainer, ɵɵcontainerRefreshEnd, ɵɵcontainerRefreshStart, ɵɵelementEnd, ɵɵelementStart, ɵɵembeddedViewEnd, ɵɵembeddedViewStart, ɵɵlistener, ɵɵtext} from '../../src/render3/instructions/all';
import {RenderFlags} from '../../src/render3/interfaces/definition';
import {renderToHtml} from './render_util';
describe('outputs', () => {
let buttonToggle: ButtonToggle;
class ButtonToggle {
change = new EventEmitter();
resetStream = new EventEmitter();
static ɵfac = () => buttonToggle = new ButtonToggle();
static ɵcmp = ɵɵdefineComponent({
type: ButtonToggle,
selectors: [['button-toggle']],
template: function(rf: RenderFlags, ctx: any) {},
decls: 0,
vars: 0,
outputs: {change: 'change', resetStream: 'reset'}
});
}
let otherDir: OtherDir;
class OtherDir {
changeStream = new EventEmitter();
static ɵfac = () => otherDir = new OtherDir;
static ɵdir = ɵɵdefineDirective(
{type: OtherDir, selectors: [['', 'otherDir', '']], outputs: {changeStream: 'change'}});
}
const deps = [ButtonToggle, OtherDir];
it('should work with outputs at same index in if block', () => {
/**
* <button (click)="onClick()">Click me</button> // outputs: null
* % if (condition) {
* <button-toggle (change)="onChange()"></button-toggle> // outputs: {change: [0, 'change']}
* % } else {
* <div otherDir (change)="onChange()"></div> // outputs: {change: [0,
* 'changeStream']}
* % }
*/
function Template(rf: RenderFlags, ctx: any) {
if (rf & RenderFlags.Create) {
ɵɵelementStart(0, 'button');
{
ɵɵlistener('click', function() { return ctx.onClick(); });
ɵɵtext(1, 'Click me');
}
ɵɵelementEnd();
ɵɵcontainer(2);
}
if (rf & RenderFlags.Update) {
ɵɵcontainerRefreshStart(2);
{
if (ctx.condition) {
let rf1 = ɵɵembeddedViewStart(0, 1, 0);
if (rf1 & RenderFlags.Create) {
ɵɵelementStart(0, 'button-toggle');
{
ɵɵlistener('change', function() { return ctx.onChange(); });
}
ɵɵelementEnd();
}
ɵɵembeddedViewEnd();
} else {
if (ɵɵembeddedViewStart(1, 1, 0)) {
ɵɵelementStart(0, 'div', 0);
{
ɵɵlistener('change', function() { return ctx.onChange(); });
}
ɵɵelementEnd();
}
ɵɵembeddedViewEnd();
}
}
ɵɵcontainerRefreshEnd();
}
}
let counter = 0;
const ctx = {condition: true, onChange: () => counter++, onClick: () => {}};
const attrs = [['otherDir', '']];
renderToHtml(Template, ctx, 3, 0, deps, null, null, false, attrs);
buttonToggle !.change.next();
expect(counter).toEqual(1);
ctx.condition = false;
renderToHtml(Template, ctx, 3, 0, deps, null, null, false, attrs);
expect(counter).toEqual(1);
otherDir !.changeStream.next();
expect(counter).toEqual(2);
});
});