added test for array to see the new behavior actually works

tests/modules/core/lib/Auth/Process/AttributeCopyTest.php

@@ -38,6 +38,26 @@ class Test_Core_Auth_Process_AttributeCopy extends PHPUnit_Framework_TestCase
         $this->assertEquals($attributes['testnew'], array('AAP'));
     }
 
+    /**
+     * Test the most basic functionality.
+     */
+    public function testArray()
+    {
+        $config = array(
+            'test' => array('new1','new2'),
+        );
+        $request = array(
+            'Attributes' => array('test' => array('AAP')),
+        );
+        $result = self::processFilter($config, $request);
+        $attributes = $result['Attributes'];
+        $this->assertArrayHasKey('test', $attributes);
+        $this->assertArrayHasKey('new1', $attributes);
+        $this->assertArrayHasKey('new2', $attributes);
+        $this->assertEquals($attributes['new1'], array('AAP'));
+        $this->assertEquals($attributes['new2'], array('AAP'));
+    }
+
     /**
      * Test that existing attributes are left unmodified.
      */