Function createBenchmarkRenderer

benchmarks/large-stream.ts:26–40

()

type BenchmarkRenderer = Awaited<ReturnType<typeof testRender>>;

async function createBenchmarkRenderer() {
  const setup = await testRender(
    React.createElement(AppHost, {
      bootstrap: createLargeSplitStreamBootstrap(),
    }),
    VIEWPORT,
  );

  // This script measures OpenTUI render-loop cost, not React test assertions. Keeping React's
  // act environment enabled makes queued timer/microtask work drain through the test scheduler and
  // can dominate the benchmark with harness time instead of frame time.
  (globalThis as { IS_REACT_ACT_ENVIRONMENT?: boolean }).IS_REACT_ACT_ENVIRONMENT = false;

  return setup;
}

function frameHasHighlightedMarker(
  frame: { lines: Array<{ spans: Array<{ text: string }> }> },