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function testResourceInitiator(resourceName, expectedInitiator) {
return new Promise(resolve => {
const observer = new PerformanceObserver(list => {
const entries = list.getEntriesByType('resource');
for (const entry of entries) {
if (entry.name.endsWith(resourceName)) {
observer.disconnect();
assert_equals(entry.initiator, expectedInitiator, `Test ${resourceName} initiator`);
resolve();
return;
}
}
});
observer.observe({entryTypes: ['resource']});
});
}