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author | Jim Posen <jim.posen@gmail.com> | 2019-01-06 22:23:34 -0800 |
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committer | Jim Posen <jim.posen@gmail.com> | 2019-02-22 17:38:45 -0800 |
commit | 4c01e4e159db82ce4b2acce75f709cac996367d7 (patch) | |
tree | a31cabbffb28cbb219094551409df563c1321eef /src/test | |
parent | 65a489e93d181d3c0f7a9cf79f7c11ff8cf2b0f0 (diff) | |
download | bitcoin-4c01e4e159db82ce4b2acce75f709cac996367d7.tar.xz |
flatfile: Unit tests for FlatFileSeq methods.
Diffstat (limited to 'src/test')
-rw-r--r-- | src/test/flatfile_tests.cpp | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/src/test/flatfile_tests.cpp b/src/test/flatfile_tests.cpp new file mode 100644 index 0000000000..079a09f8f9 --- /dev/null +++ b/src/test/flatfile_tests.cpp @@ -0,0 +1,123 @@ +// Copyright (c) 2019 The Bitcoin Core developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#include <flatfile.h> +#include <test/test_bitcoin.h> + +#include <boost/test/unit_test.hpp> + +BOOST_FIXTURE_TEST_SUITE(flatfile_tests, BasicTestingSetup) + +BOOST_AUTO_TEST_CASE(flatfile_filename) +{ + auto data_dir = SetDataDir("flatfile_test"); + + FlatFilePos pos(456, 789); + + FlatFileSeq seq1(data_dir, "a", 16 * 1024); + BOOST_CHECK_EQUAL(seq1.FileName(pos), data_dir / "a00456.dat"); + + FlatFileSeq seq2(data_dir / "a", "b", 16 * 1024); + BOOST_CHECK_EQUAL(seq2.FileName(pos), data_dir / "a" / "b00456.dat"); +} + +BOOST_AUTO_TEST_CASE(flatfile_open) +{ + auto data_dir = SetDataDir("flatfile_test"); + FlatFileSeq seq(data_dir, "a", 16 * 1024); + + std::string line1("A purely peer-to-peer version of electronic cash would allow online " + "payments to be sent directly from one party to another without going " + "through a financial institution."); + std::string line2("Digital signatures provide part of the solution, but the main benefits are " + "lost if a trusted third party is still required to prevent double-spending."); + + size_t pos1 = 0; + size_t pos2 = pos1 + GetSerializeSize(line1, CLIENT_VERSION); + + // Write first line to file. + { + CAutoFile file(seq.Open(FlatFilePos(0, pos1)), SER_DISK, CLIENT_VERSION); + file << LIMITED_STRING(line1, 256); + } + + // Attempt to append to file opened in read-only mode. + { + CAutoFile file(seq.Open(FlatFilePos(0, pos2), true), SER_DISK, CLIENT_VERSION); + BOOST_CHECK_THROW(file << LIMITED_STRING(line2, 256), std::ios_base::failure); + } + + // Append second line to file. + { + CAutoFile file(seq.Open(FlatFilePos(0, pos2)), SER_DISK, CLIENT_VERSION); + file << LIMITED_STRING(line2, 256); + } + + // Read text from file in read-only mode. + { + std::string text; + CAutoFile file(seq.Open(FlatFilePos(0, pos1), true), SER_DISK, CLIENT_VERSION); + + file >> LIMITED_STRING(text, 256); + BOOST_CHECK_EQUAL(text, line1); + + file >> LIMITED_STRING(text, 256); + BOOST_CHECK_EQUAL(text, line2); + } + + // Read text from file with position offset. + { + std::string text; + CAutoFile file(seq.Open(FlatFilePos(0, pos2)), SER_DISK, CLIENT_VERSION); + + file >> LIMITED_STRING(text, 256); + BOOST_CHECK_EQUAL(text, line2); + } + + // Ensure another file in the sequence has no data. + { + std::string text; + CAutoFile file(seq.Open(FlatFilePos(1, pos2)), SER_DISK, CLIENT_VERSION); + BOOST_CHECK_THROW(file >> LIMITED_STRING(text, 256), std::ios_base::failure); + } +} + +BOOST_AUTO_TEST_CASE(flatfile_allocate) +{ + auto data_dir = SetDataDir("flatfile_test"); + FlatFileSeq seq(data_dir, "a", 100); + + bool out_of_space; + + BOOST_CHECK_EQUAL(seq.Allocate(FlatFilePos(0, 0), 1, out_of_space), 100); + BOOST_CHECK_EQUAL(fs::file_size(seq.FileName(FlatFilePos(0, 0))), 100); + BOOST_CHECK(!out_of_space); + + BOOST_CHECK_EQUAL(seq.Allocate(FlatFilePos(0, 99), 1, out_of_space), 0); + BOOST_CHECK_EQUAL(fs::file_size(seq.FileName(FlatFilePos(0, 99))), 100); + BOOST_CHECK(!out_of_space); + + BOOST_CHECK_EQUAL(seq.Allocate(FlatFilePos(0, 99), 2, out_of_space), 101); + BOOST_CHECK_EQUAL(fs::file_size(seq.FileName(FlatFilePos(0, 99))), 200); + BOOST_CHECK(!out_of_space); +} + +BOOST_AUTO_TEST_CASE(flatfile_flush) +{ + auto data_dir = SetDataDir("flatfile_test"); + FlatFileSeq seq(data_dir, "a", 100); + + bool out_of_space; + seq.Allocate(FlatFilePos(0, 0), 1, out_of_space); + + // Flush without finalize should not truncate file. + seq.Flush(FlatFilePos(0, 1)); + BOOST_CHECK_EQUAL(fs::file_size(seq.FileName(FlatFilePos(0, 1))), 100); + + // Flush with finalize should truncate file. + seq.Flush(FlatFilePos(0, 1), true); + BOOST_CHECK_EQUAL(fs::file_size(seq.FileName(FlatFilePos(0, 1))), 1); +} + +BOOST_AUTO_TEST_SUITE_END() |