Function getBufferState

packages/cli/src/ui/components/shared/text-buffer.test.ts:177–189

(result: { current: TextBuffer })

// Helper to get the state from the hook
const getBufferState = (result: { current: TextBuffer }) => {
  expect(result.current).toHaveOnlyValidCharacters();
  return {
    text: result.current.text,
    lines: [...result.current.lines], // Clone for safety
    cursor: [...result.current.cursor] as [number, number],
    allVisualLines: [...result.current.allVisualLines],
    viewportVisualLines: [...result.current.viewportVisualLines],
    visualCursor: [...result.current.visualCursor] as [number, number],
    visualScrollRow: result.current.visualScrollRow,
    preferredCol: result.current.preferredCol,
  };
};

describe('useTextBuffer', () => {
  let viewport: Viewport;