test_performance.cjs
No OneTemporary
Actions

Size

1 KB

Referenced Files

None

Subscribers

None

test_performance.cjs
View Options

	// Test performance API
	console.log('Testing performance API...');

	// Test that performance object exists
	console.log('performance exists:', typeof performance === 'object');

	// Test performance.now()
	console.log('performance.now exists:', typeof performance.now === 'function');

	const t0 = performance.now();
	console.log('performance.now() returns number:', typeof t0 === 'number');
	console.log('performance.now() >= 0:', t0 >= 0);

	// Test performance.timeOrigin
	console.log('performance.timeOrigin exists:', typeof performance.timeOrigin === 'number');
	console.log('performance.timeOrigin > 0:', performance.timeOrigin > 0);

	// Test that now() increases over time
	const t1 = performance.now();
	console.log('performance.now() increases:', t1 >= t0);

	// Test timing a simple operation
	const start = performance.now();
	let sum = 0;
	for (let i = 0; i < 10000; i++) {
	sum += i;
	}
	const end = performance.now();
	const elapsed = end - start;

	console.log('Timing test - elapsed ms:', elapsed);
	console.log('Timing test - elapsed >= 0:', elapsed >= 0);

	// Test that timeOrigin + now() gives current time (approximately)
	const currentTime = performance.timeOrigin + performance.now();
	console.log('timeOrigin + now() is reasonable timestamp:', currentTime > 1700000000000);

	console.log('All performance tests completed!');