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// Copyright (C) 2017 Ecma International. 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 = String.fromCodePoint(...loneCodePoints);
for (const [start, end] of ranges) {
const codePoints = [];
for (let length = 0, codePoint = start; codePoint <= end; codePoint++) {
codePoints[length++] = codePoint;
if (length === CHUNK_SIZE) {
result += String.fromCodePoint(...codePoints);
codePoints.length = length = 0;
}
}
result += String.fromCodePoint(...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 }\`)`
);
}
}
}
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