it('stringFromCodePoint/utf32ToString', () => {
const s = 'abcdefg';
const data = new Uint32Array(s.length);
for (let i = 0; i < s.length; ++i) {
data[i] = s.charCodeAt(i);
assert.equal(stringFromCodePoint(data[i]), s[i]);
}
assert.equal(utf32ToString(data), s);
});
it('65536..0x10FFFF (surrogates)', function (): void {
this.timeout(20000);
const decoder = new StringToUtf32();
const target = new Uint32Array(5);
for (let i = 65536; i < 0x10FFFF; ++i) {
const codePoint = i - 0x10000;
const s = String.fromCharCode((codePoint >> 10) + 0xD800) + String.fromCharCode((codePoint % 0x400) + 0xDC00);
const length = decoder.decode(s, target);
assert.equal(length, 1);
assert.equal(target[0], i);
assert.equal(utf32ToString(target, 0, length), s);
decoder.clear();
}
});
it('0..65535', () => {
const decoder = new StringToUtf32();
const target = new Uint32Array(5);
for (let i = 0; i < 65536; ++i) {
// skip surrogate pairs
if (i >= 0xD800 && i <= 0xDFFF) {
continue;
}
const length = decoder.decode(String.fromCharCode(i), target);
assert.equal(length, 1);
assert.equal(target[0], i);
assert.equal(utf32ToString(target, 0, length), String.fromCharCode(i));
decoder.clear();
}
});