public void testReadIntsSubset() throws IOException {
final File intArray = File.createTempFile("int", "array");
try {
final int[] numbers = {10, 1, 0, 255, Integer.MAX_VALUE, Integer.MIN_VALUE, 20};
try (DataOutputStream output =
new DataOutputStream(new BufferedOutputStream(new FileOutputStream(intArray)))) {
for (int number : numbers) {
output.writeInt(number);
}
}
final LongIndex saved = LongCreate.createIndex(numbers.length - 2);
final int size = ArrayUtils.readInts(intArray, 1, 6, saved, 0, 1);
assertEquals(numbers.length - 2, size);
for (int i = 1; i < numbers.length - 1; i++) {
assertEquals(((long) numbers[i]) + 1L, saved.get(i - 1));
}
} finally {
assertTrue(intArray.delete());
}
}
