if err := testutil.GatherAndCompare(legacyregistry.DefaultGatherer, formatExpectedMetrics(1), interests...); err != nil {
		t.Fatal(err)
	}
	_, _, _ = fetchPath(manager, "application/json", discoveryPath, "")
	// Subsequent fetches should not reaggregate discovery.
	if err := testutil.GatherAndCompare(legacyregistry.DefaultGatherer, formatExpectedMetrics(1), interests...); err != nil {
		t.Fatal(err)
	}
}