Index: tests/ms.php
===================================================================
--- tests/ms.php	(revision 1045)
+++ tests/ms.php	(working copy)
@@ -480,6 +480,16 @@
 			$this->assertFalse( is_email_address_unsafe( $email_address ), "$email_address should be SAFE" );
 		}
 	}
+	
+	function test_sanitize_ms_options() {
+		update_option( 'illegal_names', array( '', 'Woo', '' ) );
+		update_option( 'limited_email_domains', array(  'woo', '', 'boo.com', 'foo.net.biz..'  ) );
+		update_option( 'banned_email_domains', array(  'woo', '', 'boo.com', 'foo.net.biz..'  ) );
+		
+		$this->assertTrue( array( 'Woo' ) == get_option( 'illegal_names' ) );
+		$this->assertTrue( array( 'woo', 'boo.com' ) == get_option( 'limited_email_domains' ) );
+		$this->assertTrue( array( 'woo', 'boo.com' ) == get_option( 'banned_email_domains' ) );
+	}
 }
 
 endif;