+++ /dev/null
-// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
-// vim: ts=8 sw=2 smarttab
-/*
- * Ceph - scalable distributed file system
- *
- * Copyright (C) 2014 Red Hat <contact@redhat.com>
- *
- * LGPL2.1 (see COPYING-LGPL2.1) or later
- */
-
-#include <gtest/gtest.h>
-#include <cmath>
-#include "common/bit_vector.hpp"
-#include <boost/assign/list_of.hpp>
-
-using namespace ceph;
-
-template <uint8_t _bit_count>
-class TestParams {
-public:
- static const uint8_t BIT_COUNT = _bit_count;
-};
-
-template <typename T>
-class BitVectorTest : public ::testing::Test {
-public:
- typedef BitVector<T::BIT_COUNT> bit_vector_t;
-};
-
-typedef ::testing::Types<TestParams<2> > BitVectorTypes;
-TYPED_TEST_CASE(BitVectorTest, BitVectorTypes);
-
-TYPED_TEST(BitVectorTest, resize) {
- typename TestFixture::bit_vector_t bit_vector;
-
- size_t size = 2357;
-
- double elements_per_byte = 8 / bit_vector.BIT_COUNT;
-
- bit_vector.resize(size);
- ASSERT_EQ(bit_vector.size(), size);
- ASSERT_EQ(bit_vector.get_data().length(), static_cast<uint64_t>(std::ceil(
- size / elements_per_byte)));
-}
-
-TYPED_TEST(BitVectorTest, clear) {
- typename TestFixture::bit_vector_t bit_vector;
-
- bit_vector.resize(123);
- bit_vector.clear();
- ASSERT_EQ(0ull, bit_vector.size());
- ASSERT_EQ(0ull, bit_vector.get_data().length());
-}
-
-TYPED_TEST(BitVectorTest, bit_order) {
- typename TestFixture::bit_vector_t bit_vector;
- bit_vector.resize(1);
-
- uint8_t value = 1;
- bit_vector[0] = value;
-
- value <<= (8 - bit_vector.BIT_COUNT);
- ASSERT_EQ(value, bit_vector.get_data()[0]);
-}
-
-TYPED_TEST(BitVectorTest, get_set) {
- typename TestFixture::bit_vector_t bit_vector;
- std::vector<uint64_t> ref;
-
- uint64_t radix = 1 << bit_vector.BIT_COUNT;
-
- size_t size = 1024;
- bit_vector.resize(size);
- ref.resize(size);
- for (size_t i = 0; i < size; ++i) {
- uint64_t v = rand() % radix;
- ref[i] = v;
- bit_vector[i] = v;
- }
-
- const typename TestFixture::bit_vector_t &const_bit_vector(bit_vector);
- for (size_t i = 0; i < size; ++i) {
- ASSERT_EQ(ref[i], bit_vector[i]);
- ASSERT_EQ(ref[i], const_bit_vector[i]);
- }
-}
-
-TYPED_TEST(BitVectorTest, get_buffer_extents) {
- typename TestFixture::bit_vector_t bit_vector;
-
- uint64_t element_count = 2 * bit_vector.BLOCK_SIZE + 51;
- uint64_t elements_per_byte = 8 / bit_vector.BIT_COUNT;
- bit_vector.resize(element_count * elements_per_byte);
-
- uint64_t offset = (bit_vector.BLOCK_SIZE + 11) * elements_per_byte;
- uint64_t length = (bit_vector.BLOCK_SIZE + 31) * elements_per_byte;
- uint64_t byte_offset;
- uint64_t byte_length;
- bit_vector.get_data_extents(offset, length, &byte_offset, &byte_length);
- ASSERT_EQ(bit_vector.BLOCK_SIZE, byte_offset);
- ASSERT_EQ(bit_vector.BLOCK_SIZE + (element_count % bit_vector.BLOCK_SIZE),
- byte_length);
-
- bit_vector.get_data_extents(1, 1, &byte_offset, &byte_length);
- ASSERT_EQ(0U, byte_offset);
- ASSERT_EQ(bit_vector.BLOCK_SIZE, byte_length);
-}
-
-TYPED_TEST(BitVectorTest, get_header_length) {
- typename TestFixture::bit_vector_t bit_vector;
-
- bufferlist bl;
- bit_vector.encode_header(bl);
- ASSERT_EQ(bl.length(), bit_vector.get_header_length());
-}
-
-TYPED_TEST(BitVectorTest, get_footer_offset) {
- typename TestFixture::bit_vector_t bit_vector;
-
- bit_vector.resize(5111);
-
- uint64_t byte_offset;
- uint64_t byte_length;
- bit_vector.get_data_extents(0, bit_vector.size(), &byte_offset, &byte_length);
-
- ASSERT_EQ(bit_vector.get_header_length() + byte_length,
- bit_vector.get_footer_offset());
-}
-
-TYPED_TEST(BitVectorTest, partial_decode_encode) {
- typename TestFixture::bit_vector_t bit_vector;
-
- uint64_t elements_per_byte = 8 / bit_vector.BIT_COUNT;
- bit_vector.resize(9161 * elements_per_byte);
- for (uint64_t i = 0; i < bit_vector.size(); ++i) {
- bit_vector[i] = i % 4;
- }
-
- bufferlist bl;
- ::encode(bit_vector, bl);
- bit_vector.clear();
-
- bufferlist header_bl;
- header_bl.substr_of(bl, 0, bit_vector.get_header_length());
- bufferlist::iterator header_it = header_bl.begin();
- bit_vector.decode_header(header_it);
-
- bufferlist footer_bl;
- footer_bl.substr_of(bl, bit_vector.get_footer_offset(),
- bl.length() - bit_vector.get_footer_offset());
- bufferlist::iterator footer_it = footer_bl.begin();
- bit_vector.decode_footer(footer_it);
-
- typedef std::pair<uint64_t, uint64_t> Extent;
- typedef std::list<Extent> Extents;
-
- Extents extents = boost::assign::list_of(
- std::make_pair(0, 1))(
- std::make_pair((bit_vector.BLOCK_SIZE * elements_per_byte) - 2, 4))(
- std::make_pair((bit_vector.BLOCK_SIZE * elements_per_byte) + 2, 2))(
- std::make_pair((2 * bit_vector.BLOCK_SIZE * elements_per_byte) - 2, 4))(
- std::make_pair((2 * bit_vector.BLOCK_SIZE * elements_per_byte) + 2, 2))(
- std::make_pair(2, 2 * bit_vector.BLOCK_SIZE));
- for (Extents::iterator it = extents.begin(); it != extents.end(); ++it) {
- uint64_t element_offset = it->first;
- uint64_t element_length = it->second;
- uint64_t byte_offset;
- uint64_t byte_length;
- bit_vector.get_data_extents(element_offset, element_length, &byte_offset,
- &byte_length);
-
- bufferlist data_bl;
- data_bl.substr_of(bl, bit_vector.get_header_length() + byte_offset,
- byte_length);
- bufferlist::iterator data_it = data_bl.begin();
- bit_vector.decode_data(data_it, byte_offset);
-
- data_bl.clear();
- bit_vector.encode_data(data_bl, byte_offset, byte_length);
-
- footer_bl.clear();
- bit_vector.encode_footer(footer_bl);
-
- bufferlist updated_bl;
- updated_bl.substr_of(bl, 0, bit_vector.get_header_length() + byte_offset);
- updated_bl.append(data_bl);
-
- if (byte_offset + byte_length < bit_vector.get_footer_offset()) {
- uint64_t tail_data_offset = bit_vector.get_header_length() + byte_offset +
- byte_length;
- data_bl.substr_of(bl, tail_data_offset,
- bit_vector.get_footer_offset() - tail_data_offset);
- updated_bl.append(data_bl);
- }
-
- updated_bl.append(footer_bl);
- ASSERT_EQ(bl, updated_bl);
-
- bufferlist::iterator updated_it = updated_bl.begin();
- ::decode(bit_vector, updated_it);
- }
-}
-
-TYPED_TEST(BitVectorTest, header_crc) {
- typename TestFixture::bit_vector_t bit_vector;
-
- bufferlist header;
- bit_vector.encode_header(header);
-
- bufferlist footer;
- bit_vector.encode_footer(footer);
-
- bufferlist::iterator it = footer.begin();
- bit_vector.decode_footer(it);
-
- bit_vector.resize(1);
- bit_vector.encode_header(header);
-
- it = footer.begin();
- ASSERT_THROW(bit_vector.decode_footer(it), buffer::malformed_input);
-}
-
-TYPED_TEST(BitVectorTest, data_crc) {
- typename TestFixture::bit_vector_t bit_vector1;
- typename TestFixture::bit_vector_t bit_vector2;
-
- uint64_t elements_per_byte = 8 / bit_vector1.BIT_COUNT;
- bit_vector1.resize((bit_vector1.BLOCK_SIZE + 1) * elements_per_byte);
- bit_vector2.resize((bit_vector2.BLOCK_SIZE + 1) * elements_per_byte);
-
- uint64_t byte_offset;
- uint64_t byte_length;
- bit_vector1.get_data_extents(0, bit_vector1.size(), &byte_offset,
- &byte_length);
-
- bufferlist data;
- bit_vector1.encode_data(data, byte_offset, byte_length);
-
- bufferlist::iterator data_it = data.begin();
- bit_vector1.decode_data(data_it, byte_offset);
-
- bit_vector2[bit_vector2.size() - 1] = 1;
-
- bufferlist dummy_data;
- bit_vector2.encode_data(dummy_data, byte_offset, byte_length);
-
- data_it = data.begin();
- ASSERT_THROW(bit_vector2.decode_data(data_it, byte_offset),
- buffer::malformed_input);
-}
-
-TYPED_TEST(BitVectorTest, iterator) {
- typename TestFixture::bit_vector_t bit_vector;
-
- uint64_t radix = 1 << bit_vector.BIT_COUNT;
- uint64_t size = 25 * (1ULL << 20);
- uint64_t offset = 0;
-
- // create fragmented in-memory bufferlist layout
- uint64_t resize = 0;
- while (resize < size) {
- resize += 4096;
- if (resize > size) {
- resize = size;
- }
- bit_vector.resize(resize);
- }
-
- for (auto it = bit_vector.begin(); it != bit_vector.end(); ++it, ++offset) {
- *it = offset % radix;
- }
-
- offset = 123;
- auto end_it = bit_vector.begin() + (size - 1024);
- for (auto it = bit_vector.begin() + offset; it != end_it; ++it, ++offset) {
- ASSERT_EQ(offset % radix, *it);
- }
-}
Code Review / stor4nfv.git / blobdiff