1 files changed, 27 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/parseFloat/tonumber-numeric-separator-literal-sign-plus-dds-nsl-dd.js b/js/src/tests/test262/built-ins/parseFloat/tonumber-numeric-separator-literal-sign-plus-dds-nsl-dd.js
new file mode 100644
index 0000000000..fd2bfe4b2d
--- /dev/null
+++ b/js/src/tests/test262/built-ins/parseFloat/tonumber-numeric-separator-literal-sign-plus-dds-nsl-dd.js
@@ -0,0 +1,27 @@
+// 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: >
+  The NSL does not affect strings parsed by parseFloat (StrUnsignedDecimalLiteral)
+info: |
+  StrDecimalLiteral :::
+    StrUnsignedDecimalLiteral
+    + StrUnsignedDecimalLiteral
+    - StrUnsignedDecimalLiteral
+features: [numeric-separator-literal]
+---*/
+
+assert.sameValue(parseFloat("+123456789_0"), +123456789);
+assert.sameValue(parseFloat("+123456789_1"), +123456789);
+assert.sameValue(parseFloat("+123456789_2"), +123456789);
+assert.sameValue(parseFloat("+123456789_3"), +123456789);
+assert.sameValue(parseFloat("+123456789_4"), +123456789);
+assert.sameValue(parseFloat("+123456789_5"), +123456789);
+assert.sameValue(parseFloat("+123456789_6"), +123456789);
+assert.sameValue(parseFloat("+123456789_7"), +123456789);
+assert.sameValue(parseFloat("+123456789_8"), +123456789);
+assert.sameValue(parseFloat("+123456789_9"), +123456789);
+
+reportCompare(0, 0);