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Diffstat (limited to 'js/src/tests/test262/built-ins/RegExp/CharacterClassEscapes/shell.js')
-rw-r--r-- | js/src/tests/test262/built-ins/RegExp/CharacterClassEscapes/shell.js | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/RegExp/CharacterClassEscapes/shell.js b/js/src/tests/test262/built-ins/RegExp/CharacterClassEscapes/shell.js new file mode 100644 index 0000000000..591d3924c3 --- /dev/null +++ b/js/src/tests/test262/built-ins/RegExp/CharacterClassEscapes/shell.js @@ -0,0 +1,115 @@ +// GENERATED, DO NOT EDIT +// file: regExpUtils.js +// Copyright (C) 2017 Mathias Bynens. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +description: | + Collection of functions used to assert the correctness of RegExp objects. +defines: [buildString, testPropertyEscapes, testPropertyOfStrings, testExtendedCharacterClass, matchValidator] +---*/ + +function buildString(args) { + // Use member expressions rather than destructuring `args` for improved + // compatibility with engines that only implement assignment patterns + // partially or not at all. + const loneCodePoints = args.loneCodePoints; + const ranges = args.ranges; + const CHUNK_SIZE = 10000; + let result = Reflect.apply(String.fromCodePoint, null, loneCodePoints); + for (let i = 0; i < ranges.length; i++) { + const range = ranges[i]; + const start = range[0]; + const end = range[1]; + const codePoints = []; + for (let length = 0, codePoint = start; codePoint <= end; codePoint++) { + codePoints[length++] = codePoint; + if (length === CHUNK_SIZE) { + result += Reflect.apply(String.fromCodePoint, null, codePoints); + codePoints.length = length = 0; + } + } + result += Reflect.apply(String.fromCodePoint, null, codePoints); + } + return result; +} + +function printCodePoint(codePoint) { + const hex = codePoint + .toString(16) + .toUpperCase() + .padStart(6, "0"); + return `U+${hex}`; +} + +function printStringCodePoints(string) { + const buf = []; + for (const symbol of string) { + const formatted = printCodePoint(symbol.codePointAt(0)); + buf.push(formatted); + } + return buf.join(' '); +} + +function testPropertyEscapes(regExp, string, expression) { + if (!regExp.test(string)) { + for (const symbol of string) { + const formatted = printCodePoint(symbol.codePointAt(0)); + assert( + regExp.test(symbol), + `\`${ expression }\` should match ${ formatted } (\`${ symbol }\`)` + ); + } + } +} + +function testPropertyOfStrings(args) { + // Use member expressions rather than destructuring `args` for improved + // compatibility with engines that only implement assignment patterns + // partially or not at all. + const regExp = args.regExp; + const expression = args.expression; + const matchStrings = args.matchStrings; + const nonMatchStrings = args.nonMatchStrings; + const allStrings = matchStrings.join(''); + if (!regExp.test(allStrings)) { + for (const string of matchStrings) { + assert( + regExp.test(string), + `\`${ expression }\` should match ${ string } (${ printStringCodePoints(string) })` + ); + } + } + + if (!nonMatchStrings) return; + + const allNonMatchStrings = nonMatchStrings.join(''); + if (regExp.test(allNonMatchStrings)) { + for (const string of nonMatchStrings) { + assert( + !regExp.test(string), + `\`${ expression }\` should not match ${ string } (${ printStringCodePoints(string) })` + ); + } + } +} + +// The exact same logic can be used to test extended character classes +// as enabled through the RegExp `v` flag. This is useful to test not +// just standalone properties of strings, but also string literals, and +// set operations. +const testExtendedCharacterClass = testPropertyOfStrings; + +// Returns a function that validates a RegExp match result. +// +// Example: +// +// var validate = matchValidator(['b'], 1, 'abc'); +// validate(/b/.exec('abc')); +// +function matchValidator(expectedEntries, expectedIndex, expectedInput) { + return function(match) { + assert.compareArray(match, expectedEntries, 'Match entries'); + assert.sameValue(match.index, expectedIndex, 'Match index'); + assert.sameValue(match.input, expectedInput, 'Match input'); + } +} |