@Test
public void createsItemSource() {

    // given
    SimpleInputBufferPooledObjectOps ops = new SimpleInputBufferPooledObjectOps(
            HeapByteBufferAllocator.INSTANCE,
            TEST_BUFFER_SIZE
    );
    // when
    ItemSource result = ops.createItemSource(mock(ReleaseCallback.class));
    // then
    assertNotNull(result);
}