func assertPrices(t *testing.T, usd, eur, jpy []byte, consumer *multiwordconsumer_wrapper.MultiWordConsumer) {
var tmp [32]byte
copy(tmp[:], usd)
haveUsd, err := consumer.Usd(nil)
require.NoError(t, err)
assert.Equal(t, tmp[:], haveUsd[:])
copy(tmp[:], eur)
haveEur, err := consumer.Eur(nil)
require.NoError(t, err)
assert.Equal(t, tmp[:], haveEur[:])
copy(tmp[:], jpy)
haveJpy, err := consumer.Jpy(nil)
require.NoError(t, err)
assert.Equal(t, tmp[:], haveJpy[:])