1 files changed, 20 insertions, 0 deletions
diff --git a/test/built-ins/parseFloat/tonumber-numeric-separator-literal-hil-hds-nsl-hds.js b/test/built-ins/parseFloat/tonumber-numeric-separator-literal-hil-hds-nsl-hds.js
new file mode 100644
index 000000000..4cbdf527a
--- /dev/null
+++ b/test/built-ins/parseFloat/tonumber-numeric-separator-literal-hil-hds-nsl-hds.js
@@ -0,0 +1,20 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-tonumber-applied-to-the-string-type
+description: 0x StrHexDigits, 0X StrHexDigits
+info: |
+
+  StrHexLiteral :::
+    0x StrHexDigits
+    0X StrHexDigits
+
+  StrHexDigits :::
+    HexDigit
+    StrHexDigits HexDigit
+
+---*/
+
+assert.sameValue(parseFloat("0x01_00"), 0x01);
+assert.sameValue(parseFloat("0X01_00"), 0X01);