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if (observe_entry === undefined) {
throw new Error("You must include resource-timing/resources/observe-entry.js "
+ "before including this script.");
}
// Asserts that, for the given name, there is/will-be a
// PerformanceResourceTiming entry that has the given 'initiatorType'. The test
// is labeled according to the given descriptor.
const initiator_type_test = (entry_name, expected_initiator, descriptor) => {
promise_test(async () => {
const entry = await observe_entry(entry_name);
assert_equals(entry.initiatorType, expected_initiator);
}, `The initiator type for ${descriptor} must be '${expected_initiator}'`);
};