Adding App::location() method to be able to obtain the defined path f…

…or a class

lib/Cake/Core/App.php

@@ -587,6 +587,19 @@ public static function load($className) {
 		return false;
 	}
 
+/**
+ * Returns the package name where a class was defined to be located at
+ *
+ * @param string $className name of the class to obtain the package name from
+ * @return string package name or null if not declared
+ */
+	public static function location($className) {
+		if (!empty(self::$__classMap[$className])) {
+			return self::$__classMap[$className];
+		}
+		return null;
+	}
+
 /**
  * Finds classes based on $name or specific file(s) to search.  Calling App::import() will
  * not construct any classes contained in the files. It will only find and require() the file.

lib/Cake/Test/Case/Core/AppTest.php

@@ -736,4 +736,14 @@ public function testLoadClassInLibs() {
 		App::uses('TestUtilityClass', 'Utility');
 		$this->assertTrue(class_exists('CustomLibClass'));
 	}
+
+/**
+ * Tests that  App::location() returns the defined path for a class
+ *
+ * @return void
+ */
+	public function testClassLocation() {
+		App::uses('MyCustomClass', 'MyPackage/Name');
+		$this->assertEquals('MyPackage/Name', App::location('MyCustomClass'));
+	}
 }