})
	}
}

func checkSyscalls(t *testing.T, data format.Data) {
	data = filterViewerTrace(data,
		filterEventName("syscall"),
		filterStackRootFunc("main.blockingSyscall"))
	if len(data.Events) <= 1 {
		t.Errorf("got %d events, want > 1", len(data.Events))
	}
	data = filterViewerTrace(data, filterBlocked("yes"))
	if len(data.Events) != 1 {
		t.Errorf("got %d events, want 1", len(data.Events))
	}
}