test262/test/built-ins/Number/string-numeric-separator-literal-oil-od-nsl-od.js

// Copyright (C) 2017 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
esid: prod-NumericLiteralSeparator
description: NumericLiteralSeparator is not valid on string conversions for ToNumber operations
info: |
  `0o` | `0O` OctalDigit NumericLiteralSeparator OctalDigit

  NumericLiteralSeparator ::
    _

  OctalIntegerLiteral ::
    0o OctalDigits
    0O OctalDigits

  OctalDigits ::
    OctalDigit
    OctalDigits OctalDigit
    OctalDigits NumericLiteralSeparator OctalDigit

  OctalDigit :: one of
    0 1 2 3 4 5 6 7

features: [numeric-separator-literal]
---*/

assert.sameValue(Number("0o0_1"), NaN, "0o0_1");
assert.sameValue(Number("0O0_1"), NaN, "0O0_1");