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124 lines
2.6 KiB
124 lines
2.6 KiB
/*
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* Experimental assertion for comparing DOM objects.
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*
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* Serializes an element and some properties and attributes and its children if any,
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* otherwise the text. Then compares the result using deepEqual().
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*/
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define( [
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"qunit",
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"jquery"
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], function( QUnit, $ ) {
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var domEqual = QUnit.assert.domEqual = function( selector, modifier, message ) {
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var assert = this;
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// Get current state prior to modifier
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var expected = extract( selector, message );
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function done() {
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var actual = extract( selector, message );
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assert.push( QUnit.equiv( actual, expected ), actual, expected, message );
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}
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// Run modifier (async or sync), then compare state via done()
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if ( modifier.length ) {
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modifier( done );
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} else {
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modifier();
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done();
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}
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};
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domEqual.properties = [
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"disabled",
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"readOnly"
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];
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domEqual.attributes = [
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"autocomplete",
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"aria-activedescendant",
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"aria-controls",
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"aria-describedby",
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"aria-disabled",
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"aria-expanded",
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"aria-haspopup",
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"aria-hidden",
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"aria-labelledby",
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"aria-pressed",
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"aria-selected",
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"aria-valuemax",
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"aria-valuemin",
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"aria-valuenow",
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"class",
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"href",
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"id",
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"nodeName",
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"role",
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"tabIndex",
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"title"
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];
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function getElementStyles( elem ) {
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var styles = {};
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var style = elem.ownerDocument.defaultView ?
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elem.ownerDocument.defaultView.getComputedStyle( elem, null ) :
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elem.currentStyle;
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var key, len;
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if ( style && style.length && style[ 0 ] && style[ style[ 0 ] ] ) {
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len = style.length;
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while ( len-- ) {
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key = style[ len ];
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if ( typeof style[ key ] === "string" ) {
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styles[ $.camelCase( key ) ] = style[ key ];
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}
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}
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// Support: Opera, IE <9
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} else {
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for ( key in style ) {
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if ( typeof style[ key ] === "string" ) {
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styles[ key ] = style[ key ];
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}
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}
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}
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return styles;
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}
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function extract( selector, message ) {
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var elem = $( selector );
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if ( !elem.length ) {
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QUnit.push( false, null, null,
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"domEqual failed, can't extract " + selector + ", message was: " + message );
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return;
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}
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var result = {};
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var children;
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$.each( domEqual.properties, function( index, attr ) {
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var value = elem.prop( attr );
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result[ attr ] = value != null ? value : "";
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} );
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$.each( domEqual.attributes, function( index, attr ) {
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var value = elem.attr( attr );
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result[ attr ] = value != null ? value : "";
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} );
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result.style = getElementStyles( elem[ 0 ] );
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result.events = $._data( elem[ 0 ], "events" );
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result.data = $.extend( {}, elem.data() );
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delete result.data[ $.expando ];
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children = elem.children();
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if ( children.length ) {
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result.children = elem.children().map( function() {
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return extract( $( this ) );
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} ).get();
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} else {
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result.text = elem.text();
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}
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return result;
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}
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} );
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