Function makeFrame

src/ink/logUpdateResizePolicy.test.ts:31–76

({
  viewportWidth = 80,
  viewportHeight,
  screenHeight,
  cursorY,
  lines = [],
}: {
  viewportWidth?: number
  viewportHeight: number
  screenHeight: number
  cursorY: number
  lines?: string[]
})

}

function makeFrame({
  viewportWidth = 80,
  viewportHeight,
  screenHeight,
  cursorY,
  lines = [],
}: {
  viewportWidth?: number
  viewportHeight: number
  screenHeight: number
  cursorY: number
  lines?: string[]
}): Frame {
  const screen = createScreen(
    viewportWidth,
    screenHeight,
    stylePool,
    charPool,
    hyperlinkPool,
  )

  for (let y = 0; y < lines.length; y += 1) {
    const line = lines[y] ?? ''
    for (let x = 0; x < line.length; x += 1) {
      setCellAt(screen, x, y, {
        char: line[x]!,
        styleId: stylePool.none,
        width: CellWidth.Narrow,
        hyperlink: undefined,
      })
    }
  }

  return {
    screen,
    viewport: {
      width: viewportWidth,
      height: viewportHeight,
    },
    cursor: {
      x: 0,
      y: cursorY,
      visible: true,
    },
  }
}

describe('shouldResetForResize', () => {
  it('skips destructive reset for height-only shrink when prior content and cursor still fit', () => {