1 files changed, 27 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Number/string-hex-literal-invalid.js b/js/src/tests/test262/built-ins/Number/string-hex-literal-invalid.js
new file mode 100644
index 0000000000..6e82f0b743
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Number/string-hex-literal-invalid.js
@@ -0,0 +1,27 @@
+// Copyright (C) 2017 Ivan Vyshnevskyi. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-number-constructor-number-value
+description: Invalid hex literals yield NaN
+info: |
+    HexIntegerLiteral ::
+      0x HexDigits
+      0X HexDigits
+    HexDigits ::
+      HexDigit
+      HexDigits HexDigit
+    HexDigit :: one of
+      0 1 2 3 4 5 6 7 8 9 a b c d e f A B C D E F
+---*/
+
+assert.sameValue(Number('0xG'), NaN, 'invalid digit');
+assert.sameValue(Number('00x0'), NaN, 'leading zero');
+assert.sameValue(Number('0x'), NaN, 'omitted digits');
+assert.sameValue(Number('+0x10'), NaN, 'plus sign');
+assert.sameValue(Number('-0x10'), NaN, 'minus sign');
+assert.sameValue(Number('0x10.01'), NaN, 'fractional part');
+assert.sameValue(Number('0x1e-10'), NaN, 'exponent part with a minus sign');
+assert.sameValue(Number('0x1e+10'), NaN, 'exponent part with a plus sign');
+
+reportCompare(0, 0);