/*
 * This file is part of the MediaWiki extension MediaViewer.
 *
 * MediaViewer is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * MediaViewer is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with MediaViewer.  If not, see <http://www.gnu.org/licenses/>.
 */

( function( mw, $ ) {
	QUnit.module( 'mmv.ui.ProgressBar', QUnit.newMwEnvironment() );

	QUnit.test( 'Constructor sanity check', 2, function( assert ) {
		var progressBar = new mw.mmv.ui.ProgressBar( $( '<div>' ) );
		assert.ok( progressBar, 'ProgressBar created sccessfully' );
		assert.ok( progressBar.$progress.hasClass( 'empty' ), 'ProgressBar starts empty' );
	} );

	QUnit.test( 'Progress bar', 11, function ( assert ) {
		var $qf = $( '#qunit-fixture' ),
			progress = new mw.mmv.ui.ProgressBar( $qf );

		assert.ok( progress.$progress.hasClass( 'empty' ), 'Progress bar is hidden' );
		assert.strictEqual( progress.$percent.width(), 0, 'Progress bar\'s indicator is at 0' );

		this.sandbox.stub( $.fn, 'animate', function ( target ) {
			$( this ).css( target );
			assert.strictEqual( target.width, '50%', 'Animation should go to 50%' );
		} );
		progress.percent( 50 );
		assert.ok( !progress.$progress.hasClass( 'empty' ), 'Progress bar is visible' );
		assert.strictEqual( progress.$percent.width(), $qf.width() / 2, 'Progress bar\'s indicator is at half' );

		$.fn.animate.restore();
		this.sandbox.stub( $.fn, 'animate' );
		progress.percent( 0 );
		assert.ok( !$.fn.animate.called, 'Going to 0% should not animate' );
		assert.ok( progress.$progress.hasClass( 'empty' ), 'Progress bar is hidden' );
		assert.strictEqual( progress.$percent.width(), 0, 'Progress bar\'s indicator is at 0' );

		$.fn.animate.restore();
		this.sandbox.stub( $.fn, 'animate', function ( target, duration, transition, callback ) {
			$( this ).css( target );

			assert.strictEqual( target.width, '100%', 'Animation should go to 100%' );

			if ( callback !== undefined ) {
				callback();
			}
		} );
		progress.percent( 100 );
		assert.ok( progress.$progress.hasClass( 'empty' ), 'Progress bar is hidden' );
		assert.strictEqual( progress.$percent.width(), 0, 'Progress bar\'s indicator is at 0' );
	} );
}( mediaWiki, jQuery ) );