Branch data Line data Source code
# 1 : : // Copyright (c) 2019-2021 The Bitcoin Core developers
# 2 : : // Distributed under the MIT software license, see the accompanying
# 3 : : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
# 4 : :
# 5 : : #include <clientversion.h>
# 6 : : #include <flatfile.h>
# 7 : : #include <streams.h>
# 8 : : #include <test/util/setup_common.h>
# 9 : : #include <util/system.h>
# 10 : :
# 11 : : #include <boost/test/unit_test.hpp>
# 12 : :
# 13 : : BOOST_FIXTURE_TEST_SUITE(flatfile_tests, BasicTestingSetup)
# 14 : :
# 15 : : BOOST_AUTO_TEST_CASE(flatfile_filename)
# 16 : 2 : {
# 17 : 2 : const auto data_dir = m_args.GetDataDirBase();
# 18 : :
# 19 : 2 : FlatFilePos pos(456, 789);
# 20 : :
# 21 : 2 : FlatFileSeq seq1(data_dir, "a", 16 * 1024);
# 22 : 2 : BOOST_CHECK_EQUAL(seq1.FileName(pos), data_dir / "a00456.dat");
# 23 : :
# 24 : 2 : FlatFileSeq seq2(data_dir / "a", "b", 16 * 1024);
# 25 : 2 : BOOST_CHECK_EQUAL(seq2.FileName(pos), data_dir / "a" / "b00456.dat");
# 26 : 2 : }
# 27 : :
# 28 : : BOOST_AUTO_TEST_CASE(flatfile_open)
# 29 : 2 : {
# 30 : 2 : const auto data_dir = m_args.GetDataDirBase();
# 31 : 2 : FlatFileSeq seq(data_dir, "a", 16 * 1024);
# 32 : :
# 33 : 2 : std::string line1("A purely peer-to-peer version of electronic cash would allow online "
# 34 : 2 : "payments to be sent directly from one party to another without going "
# 35 : 2 : "through a financial institution.");
# 36 : 2 : std::string line2("Digital signatures provide part of the solution, but the main benefits are "
# 37 : 2 : "lost if a trusted third party is still required to prevent double-spending.");
# 38 : :
# 39 : 2 : size_t pos1 = 0;
# 40 : 2 : size_t pos2 = pos1 + GetSerializeSize(line1, CLIENT_VERSION);
# 41 : :
# 42 : : // Write first line to file.
# 43 : 2 : {
# 44 : 2 : CAutoFile file(seq.Open(FlatFilePos(0, pos1)), SER_DISK, CLIENT_VERSION);
# 45 : 2 : file << LIMITED_STRING(line1, 256);
# 46 : 2 : }
# 47 : :
# 48 : : // Attempt to append to file opened in read-only mode.
# 49 : 2 : {
# 50 : 2 : CAutoFile file(seq.Open(FlatFilePos(0, pos2), true), SER_DISK, CLIENT_VERSION);
# 51 : 2 : BOOST_CHECK_THROW(file << LIMITED_STRING(line2, 256), std::ios_base::failure);
# 52 : 2 : }
# 53 : :
# 54 : : // Append second line to file.
# 55 : 2 : {
# 56 : 2 : CAutoFile file(seq.Open(FlatFilePos(0, pos2)), SER_DISK, CLIENT_VERSION);
# 57 : 2 : file << LIMITED_STRING(line2, 256);
# 58 : 2 : }
# 59 : :
# 60 : : // Read text from file in read-only mode.
# 61 : 2 : {
# 62 : 2 : std::string text;
# 63 : 2 : CAutoFile file(seq.Open(FlatFilePos(0, pos1), true), SER_DISK, CLIENT_VERSION);
# 64 : :
# 65 : 2 : file >> LIMITED_STRING(text, 256);
# 66 : 2 : BOOST_CHECK_EQUAL(text, line1);
# 67 : :
# 68 : 2 : file >> LIMITED_STRING(text, 256);
# 69 : 2 : BOOST_CHECK_EQUAL(text, line2);
# 70 : 2 : }
# 71 : :
# 72 : : // Read text from file with position offset.
# 73 : 2 : {
# 74 : 2 : std::string text;
# 75 : 2 : CAutoFile file(seq.Open(FlatFilePos(0, pos2)), SER_DISK, CLIENT_VERSION);
# 76 : :
# 77 : 2 : file >> LIMITED_STRING(text, 256);
# 78 : 2 : BOOST_CHECK_EQUAL(text, line2);
# 79 : 2 : }
# 80 : :
# 81 : : // Ensure another file in the sequence has no data.
# 82 : 2 : {
# 83 : 2 : std::string text;
# 84 : 2 : CAutoFile file(seq.Open(FlatFilePos(1, pos2)), SER_DISK, CLIENT_VERSION);
# 85 : 2 : BOOST_CHECK_THROW(file >> LIMITED_STRING(text, 256), std::ios_base::failure);
# 86 : 2 : }
# 87 : 2 : }
# 88 : :
# 89 : : BOOST_AUTO_TEST_CASE(flatfile_allocate)
# 90 : 2 : {
# 91 : 2 : const auto data_dir = m_args.GetDataDirBase();
# 92 : 2 : FlatFileSeq seq(data_dir, "a", 100);
# 93 : :
# 94 : 2 : bool out_of_space;
# 95 : :
# 96 : 2 : BOOST_CHECK_EQUAL(seq.Allocate(FlatFilePos(0, 0), 1, out_of_space), 100U);
# 97 : 2 : BOOST_CHECK_EQUAL(fs::file_size(seq.FileName(FlatFilePos(0, 0))), 100U);
# 98 : 2 : BOOST_CHECK(!out_of_space);
# 99 : :
# 100 : 2 : BOOST_CHECK_EQUAL(seq.Allocate(FlatFilePos(0, 99), 1, out_of_space), 0U);
# 101 : 2 : BOOST_CHECK_EQUAL(fs::file_size(seq.FileName(FlatFilePos(0, 99))), 100U);
# 102 : 2 : BOOST_CHECK(!out_of_space);
# 103 : :
# 104 : 2 : BOOST_CHECK_EQUAL(seq.Allocate(FlatFilePos(0, 99), 2, out_of_space), 101U);
# 105 : 2 : BOOST_CHECK_EQUAL(fs::file_size(seq.FileName(FlatFilePos(0, 99))), 200U);
# 106 : 2 : BOOST_CHECK(!out_of_space);
# 107 : 2 : }
# 108 : :
# 109 : : BOOST_AUTO_TEST_CASE(flatfile_flush)
# 110 : 2 : {
# 111 : 2 : const auto data_dir = m_args.GetDataDirBase();
# 112 : 2 : FlatFileSeq seq(data_dir, "a", 100);
# 113 : :
# 114 : 2 : bool out_of_space;
# 115 : 2 : seq.Allocate(FlatFilePos(0, 0), 1, out_of_space);
# 116 : :
# 117 : : // Flush without finalize should not truncate file.
# 118 : 2 : seq.Flush(FlatFilePos(0, 1));
# 119 : 2 : BOOST_CHECK_EQUAL(fs::file_size(seq.FileName(FlatFilePos(0, 1))), 100U);
# 120 : :
# 121 : : // Flush with finalize should truncate file.
# 122 : 2 : seq.Flush(FlatFilePos(0, 1), true);
# 123 : 2 : BOOST_CHECK_EQUAL(fs::file_size(seq.FileName(FlatFilePos(0, 1))), 1U);
# 124 : 2 : }
# 125 : :
# 126 : : BOOST_AUTO_TEST_SUITE_END()
|
