blob: 2abfee3890a5481c606ab264037d534c1f24d72c [file] [log] [blame]
// 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.
---*/
function buildString({ loneCodePoints, 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 testPropertyEscapes(regex, string, expression) {
if (!regex.test(string)) {
for (const symbol of string) {
const hex = symbol
.codePointAt(0)
.toString(16)
.toUpperCase()
.padStart(6, "0");
assert(
regex.test(symbol),
`\`${ expression }\` should match U+${ hex } (\`${ symbol }\`)`
);
}
}
}
// Returns a function that will validate 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');
}
}