1 files changed, 20 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/expressions/unary-minus/S11.4.7_A3_T4.js b/js/src/tests/test262/language/expressions/unary-minus/S11.4.7_A3_T4.js
new file mode 100644
index 0000000000..f5906dd2a0
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/unary-minus/S11.4.7_A3_T4.js
@@ -0,0 +1,20 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Operator -x returns -ToNumber(x)
+es5id: 11.4.7_A3_T4
+description: Type(x) is undefined or null
+---*/
+
+//CHECK#1
+if (isNaN(-void 0) !== true) {
+  throw new Test262Error('#1: +void 0 === Not-a-Number. Actual: ' + (+void 0));
+}
+
+//CHECK#2
+if (-null !== 0) {
+  throw new Test262Error('#2: +null === 0. Actual: ' + (+null));
+}
+
+reportCompare(0, 0);