// META: script=resources/profile-utils.js promise_test(async () => { const start = performance.now(); const profiler = new Profiler({ sampleInterval: 10, maxBufferSize: Number.MAX_SAFE_INTEGER, }); ProfileUtils.forceSample(); const trace = await profiler.stop(); const end = performance.now(); assert_greater_than(trace.samples.length, 0); for (const sample of trace.samples) { assert_between_inclusive(sample.timestamp, start, end); } }, 'sample timestamps use the current high-resolution time');