Function cleanupAfterLayerTestsAsync

modules/test-utils/src/lifecycle-test.ts:335–352

* Async cleanup that waits for pending async operations before finalizing resources. * This prevents unhandled rejections from luma.gl's async shader error reporting * which may try to access destroyed WebGL resources if cleanup happens too early.

({
  layerManager,
  deckRenderer,
  oldResourceCounts
}: TestResources)

 * which may try to access destroyed WebGL resources if cleanup happens too early.
 */
async function cleanupAfterLayerTestsAsync({
  layerManager,
  deckRenderer,
  oldResourceCounts
}: TestResources): Promise<Error | null> {
  layerManager.setLayers([]);

  // Wait for any pending async operations (e.g., luma.gl's deferred shader compilation
  // error handling) to complete before destroying resources. This prevents
  // "getProgramInfoLog" errors when async error reporting tries to access
  // already-destroyed WebGL programs.
  await new Promise(resolve => setTimeout(resolve, 0));

  layerManager.finalize();
  deckRenderer.finalize();

  return getResourceCountDelta(oldResourceCounts);
}

function getResourceCounts(): Record<string, number> {
  /* global luma */