Function getLineContent

lib/terminal.test.ts:1644–1651

* Helper to get line content as a string

(term: Terminal, y: number)

   * Helper to get line content as a string
   */
  function getLineContent(term: Terminal, y: number): string {
    const line = term.wasmTerm?.getLine(y);
    if (!line) return '';
    return line
      .map((c) => String.fromCodePoint(c.codepoint || 32))
      .join('')
      .trimEnd();
  }

  /**
   * Helper to check if a line is empty (all spaces/null codepoints)