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/*
* This file is open source software, licensed to you under the terms
* of the Apache License, Version 2.0 (the "License"). See the NOTICE file
* distributed with this work for additional information regarding copyright
* ownership. You may not use this file except in compliance with the License.
*
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
/*
* Copyright (C) 2018 ScyllaDB Ltd.
*/
#define BOOST_TEST_MODULE simple_stream
#include <boost/test/included/unit_test.hpp>
#include <seastar/core/simple-stream.hh>
using namespace seastar;
template<typename Input, typename Output>
static void write_read_test(Input in, Output out)
{
auto aa = std::vector<char>(4, 'a');
auto bb = std::vector<char>(3, 'b');
auto cc = std::vector<char>(2, 'c');
out.write(aa.data(), aa.size());
out.fill('b', 3);
BOOST_CHECK_THROW(out.fill(' ', 3), std::out_of_range);
BOOST_CHECK_THROW(out.write(" ", 3), std::out_of_range);
out.write(cc.data(), cc.size());
BOOST_CHECK_THROW(out.fill(' ', 1), std::out_of_range);
BOOST_CHECK_THROW(out.write(" ", 1), std::out_of_range);
auto actual_aa = std::vector<char>(4);
in.read(actual_aa.data(), actual_aa.size());
BOOST_CHECK_EQUAL(aa, actual_aa);
auto actual_bb = std::vector<char>(3);
in.read(actual_bb.data(), actual_bb.size());
BOOST_CHECK_EQUAL(bb, actual_bb);
actual_aa.resize(1024);
BOOST_CHECK_THROW(in.read(actual_aa.data(), actual_aa.size()), std::out_of_range);
auto actual_cc = std::vector<char>(2);
in.read(actual_cc.data(), actual_cc.size());
BOOST_CHECK_EQUAL(cc, actual_cc);
BOOST_CHECK_THROW(in.read(actual_aa.data(), 1), std::out_of_range);
}
BOOST_AUTO_TEST_CASE(simple_write_read_test) {
auto buf = temporary_buffer<char>(9);
write_read_test(simple_memory_input_stream(buf.get(), buf.size()),
simple_memory_output_stream(buf.get_write(), buf.size()));
std::fill_n(buf.get_write(), buf.size(), 'x');
auto out = simple_memory_output_stream(buf.get_write(), buf.size());
write_read_test(out.to_input_stream(), out);
}
BOOST_AUTO_TEST_CASE(fragmented_write_read_test) {
static constexpr size_t total_size = 9;
auto bufs = std::vector<temporary_buffer<char>>();
using iterator_type = std::vector<temporary_buffer<char>>::iterator;
auto test = [&] {
write_read_test(fragmented_memory_input_stream<iterator_type>(bufs.begin(), total_size),
fragmented_memory_output_stream<iterator_type>(bufs.begin(), total_size));
auto out = fragmented_memory_output_stream<iterator_type>(bufs.begin(), total_size);
write_read_test(out.to_input_stream(), out);
};
bufs.emplace_back(total_size);
test();
bufs.clear();
for (auto i = 0u; i < total_size; i++) {
bufs.emplace_back(1);
}
test();
}
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