nodejs/test/parallel/test-readline-position.js

37 lines
826 B
JavaScript
Raw Normal View History

2022-08-16 11:12:47 +08:00
// Flags: --expose-internals
'use strict';
const common = require('../common');
const { PassThrough } = require('stream');
const readline = require('readline');
const assert = require('assert');
const ctrlU = { ctrl: true, name: 'u' };
common.skipIfDumbTerminal();
{
const input = new PassThrough();
const rl = readline.createInterface({
terminal: true,
input: input,
prompt: ''
});
const tests = [
[1, 'a'],
[2, 'ab'],
[2, '丁'],
[0, '\u0301'], // COMBINING ACUTE ACCENT
[1, 'a\u0301'], // á
[0, '\u20DD'], // COMBINING ENCLOSING CIRCLE
[2, 'a\u20DDb'], // a⃝b
[0, '\u200E'], // LEFT-TO-RIGHT MARK
];
for (const [cursor, string] of tests) {
rl.write(string);
assert.strictEqual(rl.getCursorPos().cols, cursor);
rl.write(null, ctrlU);
}
}