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