Added test case for JqueryEngineHelper::request() to validate 'xhr' callback.

Author: cameri

lib/Cake/Test/Case/View/Helper/JqueryEngineHelperTest.php

@@ -219,6 +219,17 @@ public function testRequest() {
 		));
 		$expected = '$.ajax({beforeSend:function (XMLHttpRequest) {doBefore}, data:$("#someId").serialize(), success:function (data, textStatus) {doFoo}, type:"post", url:"\\/people\\/edit\\/1"});';
 		$this->assertEquals($expected, $result);
+
+		$result = $this->Jquery->request('/people/edit/1', array(
+			'success' => 'doFoo',
+			'xhr' => 'return jQuery.ajaxSettings.xhr();',
+			'async' => true,
+			'method' => 'post',
+			'dataExpression' => true,
+			'data' => '$("#someId").serialize()',
+		));
+		$expected = '$.ajax({async:true, data:$("#someId").serialize(), success:function (data, textStatus) {doFoo}, type:"post", url:"\/mpm\/people\/edit\/1", xhr:function () {return jQuery.ajaxSettings.xhr();}});';
+		$this->assertEquals($expected, $result);
 	}
 
 /**