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#include <msgpack.hpp>
#include <gtest/gtest.h>
#include <sstream>
TEST(streaming, basic)
{
msgpack::sbuffer buffer;
msgpack::packer<msgpack::sbuffer> pk(&buffer);
pk.pack(1);
pk.pack(2);
pk.pack(3);
const char* input = buffer.data();
const char* const eof = input + buffer.size();
msgpack::unpacker pac;
msgpack::unpacked result;
int count = 0;
while(count < 3) {
pac.reserve_buffer(32*1024);
// read buffer into pac.buffer() upto
// pac.buffer_capacity() bytes.
size_t len = 1;
memcpy(pac.buffer(), input, len);
input += len;
pac.buffer_consumed(len);
while(pac.next(&result)) {
msgpack::object obj = result.get();
switch(count++) {
case 0:
EXPECT_EQ(1, obj.as<int>());
break;
case 1:
EXPECT_EQ(2, obj.as<int>());
break;
case 2:
EXPECT_EQ(3, obj.as<int>());
return;
}
}
EXPECT_TRUE(input < eof);
}
}
class event_handler {
public:
event_handler(std::istream& input) : input(input) { }
~event_handler() { }
void on_read()
{
while(true) {
pac.reserve_buffer(32*1024);
size_t len = input.readsome(pac.buffer(), pac.buffer_capacity());
if(len == 0) {
return;
}
pac.buffer_consumed(len);
msgpack::unpacked result;
while(pac.next(&result)) {
on_message(result.get(), result.zone());
}
if(pac.message_size() > 10*1024*1024) {
throw std::runtime_error("message is too large");
}
}
}
void on_message(msgpack::object obj, std::auto_ptr<msgpack::zone> z)
{
EXPECT_EQ(expect, obj.as<int>());
}
int expect;
private:
std::istream& input;
msgpack::unpacker pac;
};
TEST(streaming, event)
{
std::stringstream stream;
msgpack::packer<std::ostream> pk(&stream);
event_handler handler(stream);
pk.pack(1);
handler.expect = 1;
handler.on_read();
pk.pack(2);
handler.expect = 2;
handler.on_read();
pk.pack(3);
handler.expect = 3;
handler.on_read();
}
// backward compatibility
TEST(streaming, basic_compat)
{
std::ostringstream stream;
msgpack::packer<std::ostream> pk(&stream);
pk.pack(1);
pk.pack(2);
pk.pack(3);
std::istringstream input(stream.str());
msgpack::unpacker pac;
int count = 0;
while(count < 3) {
pac.reserve_buffer(32*1024);
size_t len = input.readsome(pac.buffer(), pac.buffer_capacity());
pac.buffer_consumed(len);
while(pac.execute()) {
std::auto_ptr<msgpack::zone> z(pac.release_zone());
msgpack::object obj = pac.data();
pac.reset();
switch(count++) {
case 0:
EXPECT_EQ(1, obj.as<int>());
break;
case 1:
EXPECT_EQ(2, obj.as<int>());
break;
case 2:
EXPECT_EQ(3, obj.as<int>());
return;
}
}
}
}
// backward compatibility
class event_handler_compat {
public:
event_handler_compat(std::istream& input) : input(input) { }
~event_handler_compat() { }
void on_read()
{
while(true) {
pac.reserve_buffer(32*1024);
size_t len = input.readsome(pac.buffer(), pac.buffer_capacity());
if(len == 0) {
return;
}
pac.buffer_consumed(len);
while(pac.execute()) {
std::auto_ptr<msgpack::zone> z(pac.release_zone());
msgpack::object obj = pac.data();
pac.reset();
on_message(obj, z);
}
if(pac.message_size() > 10*1024*1024) {
throw std::runtime_error("message is too large");
}
}
}
void on_message(msgpack::object obj, std::auto_ptr<msgpack::zone> z)
{
EXPECT_EQ(expect, obj.as<int>());
}
int expect;
private:
std::istream& input;
msgpack::unpacker pac;
};
TEST(streaming, event_compat)
{
std::stringstream stream;
msgpack::packer<std::ostream> pk(&stream);
event_handler_compat handler(stream);
pk.pack(1);
handler.expect = 1;
handler.on_read();
pk.pack(2);
handler.expect = 2;
handler.on_read();
pk.pack(3);
handler.expect = 3;
handler.on_read();
}
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