diff -r 000000000000 -r 6474c204b198 js/src/tests/test262/ch11/11.4/11.4.9/S11.4.9_A2.1_T1.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/test262/ch11/11.4/11.4.9/S11.4.9_A2.1_T1.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,39 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/**
+ * Operator !x uses GetValue
+ *
+ * @path ch11/11.4/11.4.9/S11.4.9_A2.1_T1.js
+ * @description Either Type(x) is not Reference or GetBase(x) is not null
+ */
+
+//CHECK#1
+if (!true !== false) {
+  $ERROR('#1: !true === false');
+}
+
+//CHECK#2
+if (!(!true) !== true) {
+  $ERROR('#2: !(!true) === true');
+}
+
+//CHECK#3
+var x = true;
+if (!x !== false) {
+  $ERROR('#3: var x = true; !x === false');
+}
+
+//CHECK#4
+var x = true;
+if (!(!x) !== true) {
+  $ERROR('#4: var x = true; !(!x) === true');
+}
+
+//CHECK#5
+var object = new Object();
+object.prop = true;
+if (!object.prop !== false) {
+  $ERROR('#5: var object = new Object(); object.prop = true; !object.prop === false');
+}
+