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promisedView.test.js
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promisedView.test.js
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let promisedView, View,
sandbox, happyView;
const
util = require( '../../../src/mobile.startup/util' ),
jQuery = require( '../utils/jQuery' ),
dom = require( '../utils/dom' ),
oo = require( '../utils/oo' ),
mediaWiki = require( '../utils/mw' ),
mustache = require( '../utils/mustache' ),
sinon = require( 'sinon' );
QUnit.module( 'MobileFrontend promisedView.js', {
beforeEach: function () {
sandbox = sinon.sandbox.create();
dom.setUp( sandbox, global );
jQuery.setUp( sandbox, global );
oo.setUp( sandbox, global );
mediaWiki.setUp( sandbox, global );
mustache.setUp( sandbox, global );
View = require( './../../../src/mobile.startup/View' );
promisedView = require( './../../../src/mobile.startup/promisedView' );
happyView = new View( {
isBorderBox: false,
className: 'test'
} );
happyView.append( '😃' );
sandbox.stub( mw, 'msg' ).withArgs( 'mobile-frontend-loading-message' ).returns( '⌛' );
},
afterEach: function () {
jQuery.tearDown();
sandbox.restore();
}
} );
QUnit.test( '#constructor happyView', function ( assert ) {
const promise = util.Deferred(),
viewSuccess = promisedView( promise );
assert.strictEqual( viewSuccess.$el.text().trim(), '⌛', 'the view is waiting to resolve' );
assert.true( viewSuccess.$el.hasClass( 'promised-view' ), 'parent element has loading class when loading' );
promise.resolve( happyView );
return promise.then( function () {
assert.strictEqual( viewSuccess.$el.attr( 'class' ), 'test', 'fully replaces its parent element with happyView\'s parent element' );
assert.strictEqual( viewSuccess.$el.text(), '😃', 'the view resolved correctly' );
} );
} );
QUnit.test( '#constructor when promise rejects but not to a sadView', function ( assert ) {
const
promise = util.Deferred().reject( new Error( 'fake test error' ) ),
viewFailure = promisedView( promise );
assert.strictEqual( viewFailure.$el.text().trim(), '⌛', 'the view is waiting to resolve' );
assert.true( viewFailure.$el.hasClass( 'promised-view' ), 'parent element has loading class when loading' );
return promise.catch( function () {
assert.strictEqual( viewFailure.$el.text().trim(), '⌛', 'the view still shows the loading icon' );
} );
} );
QUnit.test( '#constructor when promise rejects to a sadView', function ( assert ) {
const
sadView = new View( {
isBorderBox: false,
className: 'error'
} ),
promise = util.Deferred().reject( sadView ),
viewFailure = promisedView( promise );
sadView.append( '😭' );
assert.strictEqual( viewFailure.$el.text().trim(), '⌛', 'the view is waiting to resolve' );
assert.true( viewFailure.$el.hasClass( 'promised-view' ), 'parent element has loading class when loading' );
return promise.catch( function () {
assert.strictEqual( viewFailure.$el.attr( 'class' ), 'error', 'fully replaces its parent element with sadView\'s parent element' );
assert.strictEqual( viewFailure.$el.text(), '😭', 'the view resolved correctly' );
} );
} );

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