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'use strict';
const common = require('../common');
const assert = require('assert');
const { performance } = require('perf_hooks');
const timingInfo = {
startTime: 0,
endTime: 0,
finalServiceWorkerStartTime: 0,
redirectStartTime: 0,
redirectEndTime: 0,
postRedirectStartTime: 0,
finalConnectionTimingInfo: {
domainLookupStartTime: 0,
domainLookupEndTime: 0,
connectionStartTime: 0,
connectionEndTime: 0,
secureConnectionStartTime: 0,
ALPNNegotiatedProtocol: 0,
},
finalNetworkRequestStartTime: 0,
finalNetworkResponseStartTime: 0,
encodedBodySize: 0,
decodedBodySize: 0,
};
const requestedUrl = 'https://nodejs.org';
const initiatorType = '';
const cacheMode = '';
async function main() {
// Invalid buffer size values are converted to 0.
const invalidValues = [ null, undefined, true, false, -1, 0.5, Infinity, NaN, '', 'foo', {}, [], () => {} ];
for (const value of invalidValues) {
performance.setResourceTimingBufferSize(value);
performance.markResourceTiming(timingInfo, requestedUrl, initiatorType, globalThis, cacheMode);
assert.strictEqual(performance.getEntriesByType('resource').length, 0);
performance.clearResourceTimings();
}
// Wait for the buffer full event to be cleared.
await waitBufferFullEvent();
performance.setResourceTimingBufferSize(1);
performance.markResourceTiming(timingInfo, requestedUrl, initiatorType, globalThis, cacheMode);
// Trigger a resourcetimingbufferfull event.
performance.markResourceTiming(timingInfo, requestedUrl, initiatorType, globalThis, cacheMode);
assert.strictEqual(performance.getEntriesByType('resource').length, 1);
await waitBufferFullEvent();
// Apply a new buffer size limit
performance.setResourceTimingBufferSize(0);
// Buffer is not cleared on `performance.setResourceTimingBufferSize`.
assert.strictEqual(performance.getEntriesByType('resource').length, 1);
performance.clearResourceTimings();
assert.strictEqual(performance.getEntriesByType('resource').length, 0);
// Trigger a resourcetimingbufferfull event.
performance.markResourceTiming(timingInfo, requestedUrl, initiatorType, globalThis, cacheMode);
// New entry is not added to the global buffer.
assert.strictEqual(performance.getEntriesByType('resource').length, 0);
await waitBufferFullEvent();
// Apply a new buffer size limit
performance.setResourceTimingBufferSize(1);
performance.markResourceTiming(timingInfo, requestedUrl, initiatorType, globalThis, cacheMode);
assert.strictEqual(performance.getEntriesByType('resource').length, 1);
}
function waitBufferFullEvent() {
return new Promise((resolve) => {
const listener = common.mustCall((event) => {
assert.strictEqual(event.type, 'resourcetimingbufferfull');
performance.removeEventListener('resourcetimingbufferfull', listener);
resolve();
});
performance.addEventListener('resourcetimingbufferfull', listener);
});
}
main();
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