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-rw-r--r--src/test/flatfile_tests.cpp123
1 files changed, 123 insertions, 0 deletions
diff --git a/src/test/flatfile_tests.cpp b/src/test/flatfile_tests.cpp
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+// 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()