src/v8/test/webkit/fast/js/string-split-conformance.js

// Copyright 2013 the V8 project authors. All rights reserved.
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description(
'This test checks for a regression against <a href="https://bugs.webkit.org/show_bug.cgi?id=68348">String#split is buggy</a>.'
);

// The following JavaScript code (including "".split tests) is copyright by Steven Levithan,
// and released under the MIT License
var testCode = [
    ["''.split()",                        [""]],
    ["''.split(/./)",                [""]],
    ["''.split(/.?/)",                []],
    ["''.split(/.??/)",                []],
    ["'ab'.split(/a*/)",                ["", "b"]],
    ["'ab'.split(/a*?/)",                ["a", "b"]],
    ["'ab'.split(/(?:ab)/)",        ["", ""]],
    ["'ab'.split(/(?:ab)*/)",        ["", ""]],
    ["'ab'.split(/(?:ab)*?/)",        ["a", "b"]],
    ["'test'.split('')",                ["t", "e", "s", "t"]],
    ["'test'.split()",                ["test"]],
    ["'111'.split(1)",                ["", "", "", ""]],
    ["'test'.split(/(?:)/, 2)",                ["t", "e"]],
    ["'test'.split(/(?:)/, -1)",        ["t", "e", "s", "t"]],
    ["'test'.split(/(?:)/, undefined)",        ["t", "e", "s", "t"]],
    ["'test'.split(/(?:)/, null)",        []],
    ["'test'.split(/(?:)/, NaN)",        []],
    ["'test'.split(/(?:)/, true)",        ["t"]],
    ["'test'.split(/(?:)/, '2')",        ["t", "e"]],
    ["'test'.split(/(?:)/, 'two')",        []],
    ["'a'.split(/-/)",                ["a"]],
    ["'a'.split(/-?/)",                ["a"]],
    ["'a'.split(/-??/)",                ["a"]],
    ["'a'.split(/a/)",                ["", ""]],
    ["'a'.split(/a?/)",                ["", ""]],
    ["'a'.split(/a??/)",                ["a"]],
    ["'ab'.split(/-/)",                ["ab"]],
    ["'ab'.split(/-?/)",                ["a", "b"]],
    ["'ab'.split(/-??/)",                ["a", "b"]],
    ["'a-b'.split(/-/)",                ["a", "b"]],
    ["'a-b'.split(/-?/)",                ["a", "b"]],
    ["'a-b'.split(/-??/)",                ["a", "-", "b"]],
    ["'a--b'.split(/-/)",                ["a", "", "b"]],
    ["'a--b'.split(/-?/)",                ["a", "", "b"]],
    ["'a--b'.split(/-??/)",                ["a", "-", "-", "b"]],
    ["''.split(/()()/)",                []],
    ["'.'.split(/()()/)",                ["."]],
    ["'.'.split(/(.?)(.?)/)",        ["", ".", "", ""]],
    ["'.'.split(/(.??)(.??)/)",        ["."]],
    ["'.'.split(/(.)?(.)?/)",        ["", ".", undefined, ""]],
    ["'A<B>bold</B>and<CODE>coded</CODE>'.split(ecmaSampleRe)", ["A", undefined, "B", "bold", "/", "B", "and", undefined, "CODE", "coded", "/", "CODE", ""]],
    ["'tesst'.split(/(s)*/)",        ["t", undefined, "e", "s", "t"]],
    ["'tesst'.split(/(s)*?/)",        ["t", undefined, "e", undefined, "s", undefined, "s", undefined, "t"]],
    ["'tesst'.split(/(s*)/)",        ["t", "", "e", "ss", "t"]],
    ["'tesst'.split(/(s*?)/)",        ["t", "", "e", "", "s", "", "s", "", "t"]],
    ["'tesst'.split(/(?:s)*/)",        ["t", "e", "t"]],
    ["'tesst'.split(/(?=s+)/)",        ["te", "s", "st"]],
    ["'test'.split('t')",                ["", "es", ""]],
    ["'test'.split('es')",                ["t", "t"]],
    ["'test'.split(/t/)",                ["", "es", ""]],
    ["'test'.split(/es/)",                ["t", "t"]],
    ["'test'.split(/(t)/)",                ["", "t", "es", "t", ""]],
    ["'test'.split(/(es)/)",        ["t", "es", "t"]],
    ["'test'.split(/(t)(e)(s)(t)/)",["", "t", "e", "s", "t", ""]],
    ["'.'.split(/(((.((.??)))))/)",        ["", ".", ".", ".", "", "", ""]],
    ["'.'.split(/(((((.??)))))/)",        ["."]]
];
var ecmaSampleRe = /<(\/)?([^<>]+)>/;

for (var i in testCode)
    shouldBe(testCode[i][0], 'testCode[i][1]');

// Check that split works with object separators, and that steps 8 & 9 are performed in the correct order.
var separatorToStringCalled = "ToString not called on the separator";
shouldBe("'hello'.split({toString:function(){return 'e';}})", '["h", "llo"]');
shouldBe("var a = 'hello'.split({toString:function(){separatorToStringCalled='OKAY';return 'e';}},0); a.push(separatorToStringCalled); a", '["OKAY"]');