@inquirer/testing/dist/terminal.js

Inquirer testing utilities

import xterm from '@xterm/headless';
export async function interpretTerminalOutput(rawOutput, cols = 10_000, rows = 4000) {
    const term = new xterm.Terminal({
        cols,
        rows,
        allowProposedApi: true,
        convertEol: true,
    });
    await new Promise((resolve) => term.write(rawOutput, resolve));
    const lines = [];
    for (let i = 0; i < term.rows; i++) {
        lines.push(term.buffer.active.getLine(i)?.translateToString(true) ?? '');
    }
    term.dispose();
    // Trim trailing empty lines
    while (lines.length > 0 && lines.at(-1) === '') {
        lines.pop();
    }
    return lines.join('\n');
}