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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) 2014 Cloudius Systems, Ltd.
*/
#include <iostream>
#include <limits>
#include <seastar/testing/test_case.hh>
#include <seastar/core/shared_ptr.hh>
#include <seastar/net/packet-data-source.hh>
#include "ascii.hh"
#include <seastar/core/future-util.hh>
using namespace seastar;
using namespace net;
using namespace memcache;
using parser_type = memcache_ascii_parser;
static packet make_packet(std::vector<std::string> chunks, size_t buffer_size) {
packet p;
for (auto&& chunk : chunks) {
size_t size = chunk.size();
for (size_t pos = 0; pos < size; pos += buffer_size) {
auto now = std::min(pos + buffer_size, chunk.size()) - pos;
p.append(packet(chunk.data() + pos, now));
}
}
return p;
}
static auto make_input_stream(packet&& p) {
return input_stream<char>(data_source(
std::make_unique<packet_data_source>(std::move(p))));
}
static auto parse(packet&& p) {
auto is = make_lw_shared<input_stream<char>>(make_input_stream(std::move(p)));
auto parser = make_lw_shared<parser_type>();
parser->init();
return is->consume(*parser).then([is, parser] {
return make_ready_future<lw_shared_ptr<parser_type>>(parser);
});
}
auto for_each_fragment_size = [] (auto&& func) {
auto buffer_sizes = { 100000, 1000, 100, 10, 5, 2, 1 };
return do_for_each(buffer_sizes.begin(), buffer_sizes.end(), [func] (size_t buffer_size) {
return func([buffer_size] (std::vector<std::string> chunks) {
return make_packet(chunks, buffer_size);
});
});
};
SEASTAR_TEST_CASE(test_set_command_is_parsed) {
return for_each_fragment_size([] (auto make_packet) {
return parse(make_packet({"set key 1 2 3\r\nabc\r\n"})).then([] (auto p) {
BOOST_REQUIRE(p->_state == parser_type::state::cmd_set);
BOOST_REQUIRE(p->_flags_str == "1");
BOOST_REQUIRE(p->_expiration == 2);
BOOST_REQUIRE(p->_size == 3);
BOOST_REQUIRE(p->_size_str == "3");
BOOST_REQUIRE(p->_key.key() == "key");
BOOST_REQUIRE(p->_blob == "abc");
});
});
}
SEASTAR_TEST_CASE(test_empty_data_is_parsed) {
return for_each_fragment_size([] (auto make_packet) {
return parse(make_packet({"set key 1 2 0\r\n\r\n"})).then([] (auto p) {
BOOST_REQUIRE(p->_state == parser_type::state::cmd_set);
BOOST_REQUIRE(p->_flags_str == "1");
BOOST_REQUIRE(p->_expiration == 2);
BOOST_REQUIRE(p->_size == 0);
BOOST_REQUIRE(p->_size_str == "0");
BOOST_REQUIRE(p->_key.key() == "key");
BOOST_REQUIRE(p->_blob == "");
});
});
}
SEASTAR_TEST_CASE(test_superflous_data_is_an_error) {
return for_each_fragment_size([] (auto make_packet) {
return parse(make_packet({"set key 0 0 0\r\nasd\r\n"})).then([] (auto p) {
BOOST_REQUIRE(p->_state == parser_type::state::error);
});
});
}
SEASTAR_TEST_CASE(test_not_enough_data_is_an_error) {
return for_each_fragment_size([] (auto make_packet) {
return parse(make_packet({"set key 0 0 3\r\n"})).then([] (auto p) {
BOOST_REQUIRE(p->_state == parser_type::state::error);
});
});
}
SEASTAR_TEST_CASE(test_u32_parsing) {
return for_each_fragment_size([] (auto make_packet) {
return make_ready_future<>().then([make_packet] {
return parse(make_packet({"set key 0 0 0\r\n\r\n"})).then([] (auto p) {
BOOST_REQUIRE(p->_state == parser_type::state::cmd_set);
BOOST_REQUIRE(p->_flags_str == "0");
});
}).then([make_packet] {
return parse(make_packet({"set key 12345 0 0\r\n\r\n"}))
.then([] (auto p) {
BOOST_REQUIRE(p->_state == parser_type::state::cmd_set);
BOOST_REQUIRE(p->_flags_str == "12345");
});
}).then([make_packet] {
return parse(make_packet({"set key -1 0 0\r\n\r\n"}))
.then([] (auto p) {
BOOST_REQUIRE(p->_state == parser_type::state::error);
});
}).then([make_packet] {
return parse(make_packet({"set key 1-1 0 0\r\n\r\n"}))
.then([] (auto p) {
BOOST_REQUIRE(p->_state == parser_type::state::error);
});
}).then([make_packet] {
return parse(make_packet({"set key " + std::to_string(std::numeric_limits<uint32_t>::max()) + " 0 0\r\n\r\n"}))
.then([] (auto p) {
BOOST_REQUIRE(p->_state == parser_type::state::cmd_set);
BOOST_REQUIRE(p->_flags_str == to_sstring(std::numeric_limits<uint32_t>::max()));
});
});
});
}
SEASTAR_TEST_CASE(test_parsing_of_split_data) {
return for_each_fragment_size([] (auto make_packet) {
return make_ready_future<>()
.then([make_packet] {
return parse(make_packet({"set key 11", "1 222 3\r\nasd\r\n"}))
.then([] (auto p) {
BOOST_REQUIRE(p->_state == parser_type::state::cmd_set);
BOOST_REQUIRE(p->_key.key() == "key");
BOOST_REQUIRE(p->_flags_str == "111");
BOOST_REQUIRE(p->_expiration == 222);
BOOST_REQUIRE(p->_size == 3);
BOOST_REQUIRE(p->_size_str == "3");
BOOST_REQUIRE(p->_blob == "asd");
});
}).then([make_packet] {
return parse(make_packet({"set key 11", "1 22", "2 3", "\r\nasd\r\n"}))
.then([] (auto p) {
BOOST_REQUIRE(p->_state == parser_type::state::cmd_set);
BOOST_REQUIRE(p->_key.key() == "key");
BOOST_REQUIRE(p->_flags_str == "111");
BOOST_REQUIRE(p->_expiration == 222);
BOOST_REQUIRE(p->_size == 3);
BOOST_REQUIRE(p->_size_str == "3");
BOOST_REQUIRE(p->_blob == "asd");
});
}).then([make_packet] {
return parse(make_packet({"set k", "ey 11", "1 2", "2", "2 3", "\r\nasd\r\n"}))
.then([] (auto p) {
BOOST_REQUIRE(p->_state == parser_type::state::cmd_set);
BOOST_REQUIRE(p->_key.key() == "key");
BOOST_REQUIRE(p->_flags_str == "111");
BOOST_REQUIRE(p->_expiration == 222);
BOOST_REQUIRE(p->_size == 3);
BOOST_REQUIRE(p->_size_str == "3");
BOOST_REQUIRE(p->_blob == "asd");
});
}).then([make_packet] {
return parse(make_packet({"set key 111 222 3\r\n", "asd\r\n"}))
.then([] (auto p) {
BOOST_REQUIRE(p->_state == parser_type::state::cmd_set);
BOOST_REQUIRE(p->_key.key() == "key");
BOOST_REQUIRE(p->_flags_str == "111");
BOOST_REQUIRE(p->_expiration == 222);
BOOST_REQUIRE(p->_size == 3);
BOOST_REQUIRE(p->_size_str == "3");
BOOST_REQUIRE(p->_blob == "asd");
});
}).then([make_packet] {
return parse(make_packet({"set key 111 222 3\r\na", "sd\r\n"}))
.then([] (auto p) {
BOOST_REQUIRE(p->_state == parser_type::state::cmd_set);
BOOST_REQUIRE(p->_key.key() == "key");
BOOST_REQUIRE(p->_flags_str == "111");
BOOST_REQUIRE(p->_expiration == 222);
BOOST_REQUIRE(p->_size == 3);
BOOST_REQUIRE(p->_size_str == "3");
BOOST_REQUIRE(p->_blob == "asd");
});
}).then([make_packet] {
return parse(make_packet({"set key 111 222 3\r\nasd", "\r\n"}))
.then([] (auto p) {
BOOST_REQUIRE(p->_state == parser_type::state::cmd_set);
BOOST_REQUIRE(p->_key.key() == "key");
BOOST_REQUIRE(p->_flags_str == "111");
BOOST_REQUIRE(p->_expiration == 222);
BOOST_REQUIRE(p->_size == 3);
BOOST_REQUIRE(p->_size_str == "3");
BOOST_REQUIRE(p->_blob == "asd");
});
}).then([make_packet] {
return parse(make_packet({"set key 111 222 3\r\nasd\r", "\n"}))
.then([] (auto p) {
BOOST_REQUIRE(p->_state == parser_type::state::cmd_set);
BOOST_REQUIRE(p->_key.key() == "key");
BOOST_REQUIRE(p->_flags_str == "111");
BOOST_REQUIRE(p->_expiration == 222);
BOOST_REQUIRE(p->_size == 3);
BOOST_REQUIRE(p->_size_str == "3");
BOOST_REQUIRE(p->_blob == "asd");
});
});
});
}
static std::vector<sstring> as_strings(std::vector<item_key>& keys) {
std::vector<sstring> v;
for (auto&& key : keys) {
v.push_back(key.key());
}
return v;
}
SEASTAR_TEST_CASE(test_get_parsing) {
return for_each_fragment_size([] (auto make_packet) {
return make_ready_future<>()
.then([make_packet] {
return parse(make_packet({"get key1\r\n"}))
.then([] (auto p) {
BOOST_REQUIRE(p->_state == parser_type::state::cmd_get);
BOOST_REQUIRE_EQUAL(as_strings(p->_keys), std::vector<sstring>({"key1"}));
});
}).then([make_packet] {
return parse(make_packet({"get key1 key2\r\n"}))
.then([] (auto p) {
BOOST_REQUIRE(p->_state == parser_type::state::cmd_get);
BOOST_REQUIRE_EQUAL(as_strings(p->_keys), std::vector<sstring>({"key1", "key2"}));
});
}).then([make_packet] {
return parse(make_packet({"get key1 key2 key3\r\n"}))
.then([] (auto p) {
BOOST_REQUIRE(p->_state == parser_type::state::cmd_get);
BOOST_REQUIRE_EQUAL(as_strings(p->_keys), std::vector<sstring>({"key1", "key2", "key3"}));
});
});
});
}
SEASTAR_TEST_CASE(test_catches_errors_in_get) {
return for_each_fragment_size([] (auto make_packet) {
return make_ready_future<>()
.then([make_packet] {
return parse(make_packet({"get\r\n"}))
.then([] (auto p) {
BOOST_REQUIRE(p->_state == parser_type::state::error);
});
});
});
}
SEASTAR_TEST_CASE(test_parser_returns_eof_state_when_no_command_follows) {
return for_each_fragment_size([] (auto make_packet) {
auto p = make_shared<parser_type>();
auto is = make_shared<input_stream<char>>(make_input_stream(make_packet({"get key\r\n"})));
p->init();
return is->consume(*p).then([p] {
BOOST_REQUIRE(p->_state == parser_type::state::cmd_get);
}).then([is, p] {
p->init();
return is->consume(*p).then([p, is] {
BOOST_REQUIRE(p->_state == parser_type::state::eof);
});
});
});
}
SEASTAR_TEST_CASE(test_incomplete_command_is_an_error) {
return for_each_fragment_size([] (auto make_packet) {
auto p = make_shared<parser_type>();
auto is = make_shared<input_stream<char>>(make_input_stream(make_packet({"get"})));
p->init();
return is->consume(*p).then([p] {
BOOST_REQUIRE(p->_state == parser_type::state::error);
}).then([is, p] {
p->init();
return is->consume(*p).then([p, is] {
BOOST_REQUIRE(p->_state == parser_type::state::eof);
});
});
});
}
SEASTAR_TEST_CASE(test_multiple_requests_in_one_stream) {
return for_each_fragment_size([] (auto make_packet) {
auto p = make_shared<parser_type>();
auto is = make_shared<input_stream<char>>(make_input_stream(make_packet({"set key1 1 1 5\r\ndata1\r\nset key2 2 2 6\r\ndata2+\r\n"})));
p->init();
return is->consume(*p).then([p] {
BOOST_REQUIRE(p->_state == parser_type::state::cmd_set);
BOOST_REQUIRE(p->_key.key() == "key1");
BOOST_REQUIRE(p->_flags_str == "1");
BOOST_REQUIRE(p->_expiration == 1);
BOOST_REQUIRE(p->_size == 5);
BOOST_REQUIRE(p->_size_str == "5");
BOOST_REQUIRE(p->_blob == "data1");
}).then([is, p] {
p->init();
return is->consume(*p).then([p, is] {
BOOST_REQUIRE(p->_state == parser_type::state::cmd_set);
BOOST_REQUIRE(p->_key.key() == "key2");
BOOST_REQUIRE(p->_flags_str == "2");
BOOST_REQUIRE(p->_expiration == 2);
BOOST_REQUIRE(p->_size == 6);
BOOST_REQUIRE(p->_size_str == "6");
BOOST_REQUIRE(p->_blob == "data2+");
});
});
});
}
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