LayoutTests/js/script-tests/string-toLocaleLowerCase.js

//@ skip if $hostOS == "windows"
description("This test checks String.prototype.toLocaleLowerCase().");

shouldBe("String.prototype.toLocaleLowerCase.length", "0");

// Check empty string optimization.
shouldBe("''.toLocaleLowerCase()", "''");

// Generic
shouldBe("String.prototype.toLocaleLowerCase.call({ toString() { return 'A' } })", "'a'");
shouldThrow("String.prototype.toLocaleLowerCase.call({ toString() { throw Error('1') } })", "'Error: 1'");
shouldThrow("String.prototype.toLocaleLowerCase.call(null)");
shouldThrow("String.prototype.toLocaleLowerCase.call(undefined)");

// Ignores non-object, non-string locale list.
shouldBe("'A'.toLocaleLowerCase(9)", "'a'");
// Handles array-like objects with holes.
shouldBe("'\\u0130'.toLocaleLowerCase({ length: 4, 1: 'az', 3: 'en' })", "'i'");
// Doesn't throw, but ignores private tags.
shouldBe("'A'.toLocaleLowerCase('x-some-thing')", "'a'");
// Throws on problems with length, get, or toString.
shouldThrow("'A'.toLocaleLowerCase(Object.create(null, { length: { get() { throw Error('a') } } }))", "'Error: a'");
shouldThrow("'A'.toLocaleLowerCase(Object.create(null, { length: { value: 1 }, 0: { get() { throw Error('b') } } }))", "'Error: b'");
shouldThrow("'A'.toLocaleLowerCase([ { toString() { throw Error('c') } } ])", "'Error: c'");
// Throws on bad tags.
shouldThrow("'A'.toLocaleLowerCase([ 5 ])", "'TypeError: locale value must be a string or object'");
shouldThrow("'A'.toLocaleLowerCase('')", "'RangeError: invalid language tag: '");
shouldThrow("'A'.toLocaleLowerCase('a')", "'RangeError: invalid language tag: a'");
shouldThrow("'A'.toLocaleLowerCase('abcdefghij')", "'RangeError: invalid language tag: abcdefghij'");
shouldThrow("'A'.toLocaleLowerCase('#$')", "'RangeError: invalid language tag: #$'");
shouldThrow("'A'.toLocaleLowerCase('en-@-abc')", "'RangeError: invalid language tag: en-@-abc'");
shouldThrow("'A'.toLocaleLowerCase('en-u')", "'RangeError: invalid language tag: en-u'");
shouldThrow("'A'.toLocaleLowerCase('en-u-kn-true-u-ko-true')", "'RangeError: invalid language tag: en-u-kn-true-u-ko-true'");
shouldThrow("'A'.toLocaleLowerCase('en-x')", "'RangeError: invalid language tag: en-x'");
shouldThrow("'A'.toLocaleLowerCase('en-*')", "'RangeError: invalid language tag: en-*'");
shouldThrow("'A'.toLocaleLowerCase('en-')", "'RangeError: invalid language tag: en-'");
shouldThrow("'A'.toLocaleLowerCase('en--US')", "'RangeError: invalid language tag: en--US'");

// Check ascii and accents.
shouldBe("'AbCdEfGhIjKlMnOpQRStuvWXyZ0123456789'.toLocaleLowerCase()", "'abcdefghijklmnopqrstuvwxyz0123456789'");
shouldBe("'ÀÉÎÖŒØŪÑ'.toLocaleLowerCase()", "'àéîöœøūñ'");

// Check non-special case for dotted I.
shouldBe("'\\u0130'.toLocaleLowerCase('und')", "'\\u0069\\u0307'");

// Check for special casing of Azeri.
shouldBe("'\\u0130'.toLocaleLowerCase('az')", "'i'");
shouldBe("'I\\u0307'.toLocaleLowerCase('az')", "'i'");
shouldBe("'I\\u0323\\u0307'.toLocaleLowerCase('az')", "'i\\u0323'");
shouldBe("'I\\uD800\\uDDFD\\u0307'.toLocaleLowerCase('az')", "'i\\uD800\\uDDFD'");
shouldBe("'IA\\u0307'.toLocaleLowerCase('az')", "'\\u0131a\\u0307'");
shouldBe("'I\\u0300\\u0307'.toLocaleLowerCase('az')", "'\\u0131\\u0300\\u0307'");
shouldBe("'I\\uD834\\uDD85\\u0307'.toLocaleLowerCase('az')", "'\\u0131\\uD834\\uDD85\\u0307'");
shouldBe("'I'.toLocaleLowerCase('az')", "'\\u0131'");
shouldBe("'i'.toLocaleLowerCase('az')", "'i'");
shouldBe("'\\u0131'.toLocaleLowerCase('az')", "'\\u0131'");

// Check for special casing of Lithuanian.
shouldBe("'I\\u0300'.toLocaleLowerCase('lt')", "'i\\u0307\\u0300'");
shouldBe("'J\\u0300'.toLocaleLowerCase('lt')", "'j\\u0307\\u0300'");
shouldBe("'\\u012E\\u0300'.toLocaleLowerCase('lt')", "'\\u012F\\u0307\\u0300'");
shouldBe("'I\\uD834\\uDD85'.toLocaleLowerCase('lt')", "'i\\u0307\\uD834\\uDD85'");
shouldBe("'J\\uD834\\uDD85'.toLocaleLowerCase('lt')", "'j\\u0307\\uD834\\uDD85'");
shouldBe("'\\u012E\\uD834\\uDD85'.toLocaleLowerCase('lt')", "'\\u012F\\u0307\\uD834\\uDD85'");
shouldBe("'I\\u0325\\u0300'.toLocaleLowerCase('lt')", "'i\\u0307\\u0325\\u0300'");
shouldBe("'J\\u0325\\u0300'.toLocaleLowerCase('lt')", "'j\\u0307\\u0325\\u0300'");
shouldBe("'\\u012E\\u0325\\u0300'.toLocaleLowerCase('lt')", "'\\u012F\\u0307\\u0325\\u0300'");
shouldBe("'I\\uD800\\uDDFD\\u0300'.toLocaleLowerCase('lt')", "'i\\u0307\\uD800\\uDDFD\\u0300'");
shouldBe("'J\\uD800\\uDDFD\\u0300'.toLocaleLowerCase('lt')", "'j\\u0307\\uD800\\uDDFD\\u0300'");
shouldBe("'\\u012E\\uD800\\uDDFD\\u0300'.toLocaleLowerCase('lt')", "'\\u012F\\u0307\\uD800\\uDDFD\\u0300'");
shouldBe("'I\\u0325\\uD834\\uDD85'.toLocaleLowerCase('lt')", "'i\\u0307\\u0325\\uD834\\uDD85'");
shouldBe("'J\\u0325\\uD834\\uDD85'.toLocaleLowerCase('lt')", "'j\\u0307\\u0325\\uD834\\uDD85'");
shouldBe("'\\u012E\\u0325\\uD834\\uDD85'.toLocaleLowerCase('lt')", "'\\u012F\\u0307\\u0325\\uD834\\uDD85'");
shouldBe("'I\\uD800\\uDDFD\\uD834\\uDD85'.toLocaleLowerCase('lt')", "'i\\u0307\\uD800\\uDDFD\\uD834\\uDD85'");
shouldBe("'J\\uD800\\uDDFD\\uD834\\uDD85'.toLocaleLowerCase('lt')", "'j\\u0307\\uD800\\uDDFD\\uD834\\uDD85'");
shouldBe("'\\u012E\\uD800\\uDDFD\\uD834\\uDD85'.toLocaleLowerCase('lt')", "'\\u012F\\u0307\\uD800\\uDDFD\\uD834\\uDD85'");
shouldBe("'IA\\u0300'.toLocaleLowerCase('lt')", "'ia\\u0300'");
shouldBe("'JA\\u0300'.toLocaleLowerCase('lt')", "'ja\\u0300'");
shouldBe("'\\u012EA\\u0300'.toLocaleLowerCase('lt')", "'\\u012Fa\\u0300'");
shouldBe("'IA\\uD834\\uDD85'.toLocaleLowerCase('lt')", "'ia\\uD834\\uDD85'");
shouldBe("'JA\\uD834\\uDD85'.toLocaleLowerCase('lt')", "'ja\\uD834\\uDD85'");
shouldBe("'\\u012EA\\uD834\\uDD85'.toLocaleLowerCase('lt')", "'\\u012Fa\\uD834\\uDD85'");
shouldBe("'\\u00CC'.toLocaleLowerCase('lt')", "'\\u0069\\u0307\\u0300'");
shouldBe("'\\u00CD'.toLocaleLowerCase('lt')", "'\\u0069\\u0307\\u0301'");
shouldBe("'\\u0128'.toLocaleLowerCase('lt')", "'\\u0069\\u0307\\u0303'");

// Check for special casing of Turkish.
shouldBe("'\\u0130'.toLocaleLowerCase('tr')", "'i'");
shouldBe("'I\\u0307'.toLocaleLowerCase('tr')", "'i'");
shouldBe("'I\\u0323\\u0307'.toLocaleLowerCase('tr')", "'i\\u0323'");
shouldBe("'I\\uD800\\uDDFD\\u0307'.toLocaleLowerCase('tr')", "'i\\uD800\\uDDFD'");
shouldBe("'IA\\u0307'.toLocaleLowerCase('tr')", "'\\u0131a\\u0307'");
shouldBe("'I\\u0300\\u0307'.toLocaleLowerCase('tr')", "'\\u0131\\u0300\\u0307'");
shouldBe("'I\\uD834\\uDD85\\u0307'.toLocaleLowerCase('tr')", "'\\u0131\\uD834\\uDD85\\u0307'");
shouldBe("'I'.toLocaleLowerCase('tr')", "'\\u0131'");
shouldBe("'i'.toLocaleLowerCase('tr')", "'i'");
shouldBe("'\\u0131'.toLocaleLowerCase('tr')", "'\\u0131'");