1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
2 // vim: ts=8 sw=2 smarttab
4 * Ceph - scalable distributed file system
6 * Copyright (C) 2013 Inktank Storage, Inc.
8 * This is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License version 2.1, as published by the Free Software
11 * Foundation. See file COPYING.
19 #include "osd/ECBackend.h"
20 #include "gtest/gtest.h"
22 TEST(ECUtil, stripe_info_t)
24 const uint64_t swidth = 4096;
25 const uint64_t ssize = 4;
27 ECUtil::stripe_info_t s(ssize, swidth);
28 ASSERT_EQ(s.get_stripe_width(), swidth);
30 ASSERT_EQ(s.logical_to_next_chunk_offset(0), 0u);
31 ASSERT_EQ(s.logical_to_next_chunk_offset(1), s.get_chunk_size());
32 ASSERT_EQ(s.logical_to_next_chunk_offset(swidth - 1),
35 ASSERT_EQ(s.logical_to_prev_chunk_offset(0), 0u);
36 ASSERT_EQ(s.logical_to_prev_chunk_offset(swidth), s.get_chunk_size());
37 ASSERT_EQ(s.logical_to_prev_chunk_offset((swidth * 2) - 1),
40 ASSERT_EQ(s.logical_to_next_stripe_offset(0), 0u);
41 ASSERT_EQ(s.logical_to_next_stripe_offset(swidth - 1),
42 s.get_stripe_width());
44 ASSERT_EQ(s.logical_to_prev_stripe_offset(swidth), s.get_stripe_width());
45 ASSERT_EQ(s.logical_to_prev_stripe_offset(swidth), s.get_stripe_width());
46 ASSERT_EQ(s.logical_to_prev_stripe_offset((swidth * 2) - 1),
47 s.get_stripe_width());
49 ASSERT_EQ(s.aligned_logical_offset_to_chunk_offset(2*swidth),
50 2*s.get_chunk_size());
51 ASSERT_EQ(s.aligned_chunk_offset_to_logical_offset(2*s.get_chunk_size()),
52 2*s.get_stripe_width());
54 ASSERT_EQ(s.aligned_offset_len_to_chunk(make_pair(swidth, 10*swidth)),
55 make_pair(s.get_chunk_size(), 10*s.get_chunk_size()));
57 ASSERT_EQ(s.offset_len_to_stripe_bounds(make_pair(swidth-10, (uint64_t)20)),
58 make_pair((uint64_t)0, 2*swidth));