| #include "util/stream/io.hh" |
| |
| #include "util/stream/rewindable_stream.hh" |
| #include "util/file.hh" |
| |
| #define BOOST_TEST_MODULE RewindableStreamTest |
| #include <boost/test/unit_test.hpp> |
| |
| namespace util { |
| namespace stream { |
| namespace { |
| |
| BOOST_AUTO_TEST_CASE(RewindableStreamTest) { |
| scoped_fd in(MakeTemp("io_test_temp")); |
| for (uint64_t i = 0; i < 100000; ++i) { |
| WriteOrThrow(in.get(), &i, sizeof(uint64_t)); |
| } |
| SeekOrThrow(in.get(), 0); |
| |
| ChainConfig config; |
| config.entry_size = 8; |
| config.total_memory = 100; |
| config.block_count = 6; |
| |
| Chain chain(config); |
| RewindableStream s; |
| chain >> Read(in.get()) >> s >> kRecycle; |
| uint64_t i = 0; |
| for (; s; ++s, ++i) { |
| BOOST_CHECK_EQUAL(i, *static_cast<const uint64_t*>(s.Get())); |
| if (100000UL - i == 2) |
| s.Mark(); |
| } |
| BOOST_CHECK_EQUAL(100000ULL, i); |
| s.Rewind(); |
| BOOST_CHECK_EQUAL(100000ULL - 2, *static_cast<const uint64_t*>(s.Get())); |
| } |
| |
| } |
| } |
| } |