dom/webgpu/tests/cts/checkout/src/common/util/wpt_reftest_wait.ts


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import { timeout } from './timeout.js';

// Copied from https://github.com/web-platform-tests/wpt/blob/master/common/reftest-wait.js

/**
 * Remove the `reftest-wait` class on the document element.
 * The reftest runner will wait with taking a screenshot while
 * this class is present.
 *
 * See https://web-platform-tests.org/writing-tests/reftests.html#controlling-when-comparison-occurs
 */
export function takeScreenshot() {
  document.documentElement.classList.remove('reftest-wait');
}

/**
 * Call `takeScreenshot()` after a delay of at least `ms` milliseconds.
 * @param {number} ms - milliseconds
 */
export function takeScreenshotDelayed(ms: number) {
  timeout(() => {
    takeScreenshot();
  }, ms);
}