Function addTableLine

lib/internal/test_runner/utils.js:488–497

(prefix, width)

const memo = new SafeMap();
function addTableLine(prefix, width) {
  const key = `${prefix}-${width}`;
  let value = memo.get(key);
  if (value === undefined) {
    value = `${prefix}${StringPrototypeRepeat('-', width)}\n`;
    memo.set(key, value);
  }

  return value;
}

const kHorizontalEllipsis = '\u2026';
function truncateStart(string, width) {