diff -r 000000000000 -r 6474c204b198 js/src/tests/test262/ch11/11.8/11.8.3/S11.8.3_A4.8.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/test262/ch11/11.8/11.8.3/S11.8.3_A4.8.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,41 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/**
+ * If y is -Infinity and x !== y, return false
+ *
+ * @path ch11/11.8/11.8.3/S11.8.3_A4.8.js
+ * @description x is number primitive
+ */
+
+//CHECK#1
+if ((0 <= Number.NEGATIVE_INFINITY) !== false) {
+  $ERROR('#1: (0 <= -Infinity) === false');
+}
+
+//CHECK#2
+if ((1.1 <= Number.NEGATIVE_INFINITY) !== false) {
+  $ERROR('#2: (1.1 <= -Infinity) === false');
+}
+
+//CHECK#3
+if ((-1.1 <= Number.NEGATIVE_INFINITY) !== false) {
+  $ERROR('#3: (-1.1 <= -Infinity) === false');
+}
+
+//CHECK#4
+if ((Number.POSITIVE_INFINITY <= Number.NEGATIVE_INFINITY) !== false) {
+  $ERROR('#4: (+Infinity <= -Infinity) === false');
+}
+
+//CHECK#5
+if ((Number.MAX_VALUE <= Number.NEGATIVE_INFINITY) !== false) {
+  $ERROR('#5: (Number.MAX_VALUE <= -Infinity) === false');
+}
+
+//CHECK#6
+if ((Number.MIN_VALUE <= Number.NEGATIVE_INFINITY) !== false) {
+  $ERROR('#6: (Number.MIN_VALUE <= -Infinity) === false');
+}
+
+