private void readIndexInputFullyWithRandomSeeks(IndexInput indexInput) throws IOException {
BytesRef ref = new BytesRef(scaledRandomIntBetween(1, 1024));
long pos = 0;
while (pos < indexInput.length()) {
assertEquals(pos, indexInput.getFilePointer());
int op = random().nextInt(5);
if (op == 0) {
int shift = 100 - randomIntBetween(0, 200);
pos = Math.min(indexInput.length() - 1, Math.max(0, pos + shift));
indexInput.seek(pos);
} else if (op == 1) {
indexInput.readByte();
pos++;
} else {
int min = (int) Math.min(indexInput.length() - pos, ref.bytes.length);
indexInput.readBytes(ref.bytes, ref.offset, min);
pos += min;
}
}
}
