add tests for low level I/O functions, read_* and write_*. also turn some raw for loops into range-for loops in the I/O functions
This commit is contained in:
arvidn
Arvid Norberg
parent
1f9e74f40d
commit
e2f8bce539
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@ -50,10 +50,10 @@ namespace libtorrent { namespace aux {
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read_impl(span<Byte>& view, type<T>)
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{
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T ret = 0;
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for (std::size_t i = 0; i < sizeof(T); ++i)
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for (Byte const b : view.first(sizeof(T)))
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{
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ret <<= 8;
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ret |= static_cast<std::uint8_t>(view[i]);
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ret |= static_cast<std::uint8_t>(b);
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}
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view = view.subspan(sizeof(T));
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return ret;
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@ -68,10 +68,10 @@ namespace libtorrent { namespace aux {
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T val = static_cast<T>(data);
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TORRENT_ASSERT(data == static_cast<In>(val));
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int shift = int(sizeof(T)) * 8;
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for (std::size_t i = 0; i < sizeof(T); ++i)
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for (Byte& b : view.first(sizeof(T)))
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{
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shift -= 8;
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view[i] = static_cast<Byte>((val >> shift) & 0xff);
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b = static_cast<Byte>((val >> shift) & 0xff);
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}
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view = view.subspan(sizeof(T));
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}
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@ -167,12 +167,9 @@ namespace libtorrent { namespace aux {
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template<typename Byte>
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inline int write_string(std::string const& str, span<Byte>& view)
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{
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std::size_t const len = str.size();
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for (std::size_t i = 0; i < len; ++i)
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view[i] = str[i];
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view = view.subspan(len);
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return int(len);
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std::copy(str.begin(), str.end(), view.begin());
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view = view.subspan(str.size());
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return int(str.size());
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}
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}}
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@ -104,6 +104,7 @@ explicit stage_enum_if ;
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test-suite libtorrent :
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[ run
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test_primitives.cpp
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test_io.cpp
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test_create_torrent.cpp
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test_packet_buffer.cpp
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test_timestamp_history.cpp
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@ -49,6 +49,7 @@ test_programs = \
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test_ffs \
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test_session_params \
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test_span \
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test_io \
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test_alloca
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if ENABLE_TESTS
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@ -272,6 +273,7 @@ test_direct_dht_SOURCES = test_direct_dht.cpp
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test_ffs_SOURCES = test_ffs.cpp
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test_session_params_SOURCES = test_session_params.cpp
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test_span_SOURCES = test_span.cpp
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test_io_SOURCES = test_io.cpp
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test_alloca_SOURCES = test_alloca.cpp
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LDADD = libtest.la $(top_builddir)/src/libtorrent-rasterbar.la
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@ -0,0 +1,292 @@
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/*
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Copyright (c) 2018, Arvid Norberg
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the distribution.
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* Neither the name of the author nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "test.hpp"
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#include "libtorrent/io.hpp"
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#include "libtorrent/aux_/io.hpp"
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#include "libtorrent/span.hpp"
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using namespace lt::detail;
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using namespace lt::aux;
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using lt::span;
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TORRENT_TEST(write_uint8)
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{
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std::array<char, 10> buf;
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buf.fill(0x55);
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char* ptr = buf.data();
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write_uint8(0x10, ptr);
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TEST_CHECK(ptr == buf.data() + 1);
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TEST_CHECK(buf[0] == 0x10);
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TEST_CHECK(buf[1] == 0x55);
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}
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TORRENT_TEST(write_uint16)
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{
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std::array<char, 10> buf;
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buf.fill(0x55);
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char* ptr = buf.data();
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write_uint16(0x2010, ptr);
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TEST_CHECK(ptr == buf.data() + 2);
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TEST_CHECK(buf[0] == 0x20);
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TEST_CHECK(buf[1] == 0x10);
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TEST_CHECK(buf[2] == 0x55);
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}
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TORRENT_TEST(write_uint32)
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{
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std::array<char, 10> buf;
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buf.fill(0x55);
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char* ptr = buf.data();
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write_uint32(0x40302010, ptr);
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TEST_CHECK(ptr == buf.data() + 4);
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TEST_CHECK(buf[0] == 0x40);
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TEST_CHECK(buf[1] == 0x30);
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TEST_CHECK(buf[2] == 0x20);
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TEST_CHECK(buf[3] == 0x10);
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TEST_CHECK(buf[4] == 0x55);
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}
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TORRENT_TEST(write_int32)
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{
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std::array<char, 10> buf;
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buf.fill(0x55);
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char* ptr = buf.data();
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write_int32(0x40302010, ptr);
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TEST_CHECK(ptr == buf.data() + 4);
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TEST_CHECK(buf[0] == 0x40);
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TEST_CHECK(buf[1] == 0x30);
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TEST_CHECK(buf[2] == 0x20);
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TEST_CHECK(buf[3] == 0x10);
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TEST_CHECK(buf[4] == 0x55);
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}
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TORRENT_TEST(write_uint64)
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{
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std::array<std::uint8_t, 10> buf;
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buf.fill(0x55);
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std::uint8_t* ptr = buf.data();
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write_uint64(0x8070605040302010ull, ptr);
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TEST_CHECK(ptr == buf.data() + 8);
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TEST_CHECK(buf[0] == 0x80);
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TEST_CHECK(buf[1] == 0x70);
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TEST_CHECK(buf[2] == 0x60);
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TEST_CHECK(buf[3] == 0x50);
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TEST_CHECK(buf[4] == 0x40);
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TEST_CHECK(buf[5] == 0x30);
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TEST_CHECK(buf[6] == 0x20);
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TEST_CHECK(buf[7] == 0x10);
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TEST_CHECK(buf[8] == 0x55);
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}
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TORRENT_TEST(read_uint8)
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{
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std::array<char, 10> buf;
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buf.fill(0x55);
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buf[0] = 0x10;
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char const* ptr = buf.data();
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TEST_CHECK(read_uint8(ptr) == 0x10);
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TEST_CHECK(ptr == buf.data() + 1);
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}
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TORRENT_TEST(read_uint16)
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{
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std::array<char, 10> buf;
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buf.fill(0x55);
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buf[0] = 0x20;
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buf[1] = 0x10;
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char const* ptr = buf.data();
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TEST_CHECK(read_uint16(ptr) == 0x2010);
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TEST_CHECK(ptr == buf.data() + 2);
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}
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TORRENT_TEST(read_uint32)
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{
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std::array<char, 10> buf;
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buf.fill(0x55);
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buf[0] = 0x40;
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buf[1] = 0x30;
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buf[2] = 0x20;
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buf[3] = 0x10;
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char const* ptr = buf.data();
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TEST_CHECK(read_uint32(ptr) == 0x40302010);
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TEST_CHECK(ptr == buf.data() + 4);
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}
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TORRENT_TEST(read_uint64)
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{
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std::array<std::uint8_t, 10> buf;
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buf.fill(0x55);
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buf[0] = 0x80;
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buf[1] = 0x70;
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buf[2] = 0x60;
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buf[3] = 0x50;
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buf[4] = 0x40;
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buf[5] = 0x30;
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buf[6] = 0x20;
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buf[7] = 0x10;
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std::uint8_t const* ptr = buf.data();
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TEST_CHECK(read_uint64(ptr) == 0x8070605040302010ull);
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TEST_CHECK(ptr == buf.data() + 8);
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}
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TORRENT_TEST(read_int32)
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{
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std::array<std::uint8_t, 10> buf;
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buf.fill(0x55);
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buf[0] = 0x40;
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buf[1] = 0x30;
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buf[2] = 0x20;
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buf[3] = 0x10;
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std::uint8_t const* ptr = buf.data();
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TEST_CHECK(read_int32(ptr) == 0x40302010);
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TEST_CHECK(ptr == buf.data() + 4);
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}
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TORRENT_TEST(write_uint8_span)
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{
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std::array<char, 10> buf;
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buf.fill(0x55);
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span<char> view(buf);
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write_uint8(0x10, view);
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TEST_CHECK(view == span<char>(buf).subspan(1));
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TEST_CHECK(buf[0] == 0x10);
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TEST_CHECK(buf[1] == 0x55);
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}
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TORRENT_TEST(write_uint16_span)
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{
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std::array<char, 10> buf;
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buf.fill(0x55);
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span<char> view(buf);
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write_uint16(0x2010, view);
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TEST_CHECK(view == span<char>(buf).subspan(2));
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TEST_CHECK(buf[0] == 0x20);
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TEST_CHECK(buf[1] == 0x10);
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TEST_CHECK(buf[2] == 0x55);
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}
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TORRENT_TEST(write_uint32_span)
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{
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std::array<char, 10> buf;
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buf.fill(0x55);
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span<char> view(buf);
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write_uint32(0x40302010, view);
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TEST_CHECK(view == span<char>(buf).subspan(4));
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TEST_CHECK(buf[0] == 0x40);
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TEST_CHECK(buf[1] == 0x30);
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TEST_CHECK(buf[2] == 0x20);
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TEST_CHECK(buf[3] == 0x10);
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TEST_CHECK(buf[4] == 0x55);
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}
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TORRENT_TEST(write_uint64_span)
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{
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std::array<std::uint8_t, 10> buf;
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buf.fill(0x55);
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span<std::uint8_t> view(buf);
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write_uint64(0x8070605040302010ull, view);
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TEST_CHECK(view == span<std::uint8_t>(buf).subspan(8));
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TEST_CHECK(buf[0] == 0x80);
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TEST_CHECK(buf[1] == 0x70);
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TEST_CHECK(buf[2] == 0x60);
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TEST_CHECK(buf[3] == 0x50);
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TEST_CHECK(buf[4] == 0x40);
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TEST_CHECK(buf[5] == 0x30);
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TEST_CHECK(buf[6] == 0x20);
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TEST_CHECK(buf[7] == 0x10);
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TEST_CHECK(buf[8] == 0x55);
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}
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TORRENT_TEST(read_uint8_span)
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{
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std::array<char, 10> buf;
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buf.fill(0x55);
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buf[0] = 0x10;
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span<char const> view(buf);
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TEST_CHECK(read_uint8(view) == 0x10);
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TEST_CHECK(view == span<char>(buf).subspan(1));
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}
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TORRENT_TEST(read_uint16_span)
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{
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std::array<char, 10> buf;
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buf.fill(0x55);
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buf[0] = 0x20;
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buf[1] = 0x10;
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span<char const> view(buf);
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TEST_CHECK(read_uint16(view) == 0x2010);
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TEST_CHECK(view == span<char>(buf).subspan(2));
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}
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TORRENT_TEST(read_uint32_span)
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{
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std::array<char, 10> buf;
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buf.fill(0x55);
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buf[0] = 0x40;
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buf[1] = 0x30;
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buf[2] = 0x20;
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buf[3] = 0x10;
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span<char const> view(buf);
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TEST_CHECK(read_uint32(view) == 0x40302010);
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TEST_CHECK(view == span<char>(buf).subspan(4));
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}
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TORRENT_TEST(read_int32_span)
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{
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std::array<char, 10> buf;
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buf.fill(0x55);
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buf[0] = 0x40;
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buf[1] = 0x30;
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buf[2] = 0x20;
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buf[3] = 0x10;
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span<char const> view(buf);
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TEST_CHECK(read_int32(view) == 0x40302010);
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TEST_CHECK(view == span<char>(buf).subspan(4));
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}
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TORRENT_TEST(read_uint64_span)
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{
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std::array<std::uint8_t, 10> buf;
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buf.fill(0x55);
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buf[0] = 0x80;
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buf[1] = 0x70;
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buf[2] = 0x60;
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buf[3] = 0x50;
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buf[4] = 0x40;
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buf[5] = 0x30;
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buf[6] = 0x20;
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buf[7] = 0x10;
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span<std::uint8_t const> view(buf);
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TEST_CHECK(read_uint64(view) == 0x8070605040302010ull);
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TEST_CHECK(view == span<std::uint8_t>(buf).subspan(8));
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}
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