for (int i = 0; i < QR_CODE_TEST.length; i++) { // # iterations is kind of arbitrary
System.arraycopy(QR_CODE_TEST_WITH_EC, 0, received, 0, received.length);
corrupt(received, QR_CODE_CORRECTABLE, random);
for (int i = 0; i < QR_CODE_TEST.length; i++) { // # iterations is kind of arbitrary
System.arraycopy(QR_CODE_TEST_WITH_EC, 0, received, 0, received.length);
corrupt(received, QR_CODE_CORRECTABLE, random);