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cmake/Tests/CMakeServerLib/testServerBuffering.cpp

88 lines
2.3 KiB

#include <iostream>
#include <memory>
#include <string>
#include <vector>
#include "cmConnection.h"
#include "cmServerConnection.h"
void print_error(const std::vector<std::string>& input,
const std::vector<std::string>& output)
{
std::cerr << "Responses don't equal input messages input." << std::endl;
std::cerr << "Responses: " << std::endl;
for (auto& msg : output) {
std::cerr << "'" << msg << "'" << std::endl;
}
std::cerr << "Input messages" << std::endl;
for (auto& msg : input) {
std::cerr << "'" << msg << "'" << std::endl;
}
}
std::string trim_newline(const std::string& _buffer)
{
auto buffer = _buffer;
while (!buffer.empty() && (buffer.back() == '\n' || buffer.back() == '\r')) {
buffer.pop_back();
}
return buffer;
}
int testServerBuffering(int, char** const)
{
std::vector<std::string> messages = {
"{ \"test\": 10}", "{ \"test\": { \"test2\": false} }",
"{ \"test\": [1, 2, 3] }",
"{ \"a\": { \"1\": {}, \n\n\n \"2\":[] \t\t\t\t}}"
};
std::string fullMessage;
for (auto& msg : messages) {
fullMessage += "[== \"CMake Server\" ==[\n";
fullMessage += msg;
fullMessage += "\n]== \"CMake Server\" ==]\n";
}
// The buffering strategy should cope with any fragmentation, including
// just getting the characters one at a time.
auto bufferingStrategy =
std::unique_ptr<cmConnectionBufferStrategy>(new cmServerBufferStrategy);
std::vector<std::string> response;
std::string rawBuffer;
for (auto& messageChar : fullMessage) {
rawBuffer += messageChar;
std::string packet = bufferingStrategy->BufferMessage(rawBuffer);
do {
if (!packet.empty() && packet != "\r\n") {
response.push_back(trim_newline(packet));
}
packet = bufferingStrategy->BufferMessage(rawBuffer);
} while (!packet.empty());
}
if (response != messages) {
print_error(messages, response);
return 1;
}
// We should also be able to deal with getting a bunch at once
response.clear();
std::string packet = bufferingStrategy->BufferMessage(fullMessage);
do {
if (!packet.empty() && packet != "\r\n") {
response.push_back(trim_newline(packet));
}
packet = bufferingStrategy->BufferMessage(fullMessage);
} while (!packet.empty());
if (response != messages) {
print_error(messages, response);
return 1;
}
return 0;
}