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#include "boost_formatters.hpp"
#include "http/server_sent_event.hpp"
#include <boost/asio/buffer.hpp>
#include <boost/asio/io_context.hpp>
#include <boost/asio/read.hpp>
#include <boost/beast/_experimental/test/stream.hpp>
#include <chrono>
#include <memory>
#include <string>
#include <string_view>
#include <utility>
#include "gtest/gtest.h"
namespace crow
{
namespace sse_socket
{
namespace
{
TEST(ServerSentEvent, SseWorks)
{
boost::asio::io_context io;
boost::beast::test::stream stream(io);
boost::beast::test::stream out(io);
stream.connect(out);
bool openCalled = false;
auto openHandler = [&openCalled](Connection&) { openCalled = true; };
bool closeCalled = false;
auto closeHandler = [&closeCalled](Connection&) { closeCalled = true; };
std::shared_ptr<ConnectionImpl<boost::beast::test::stream>> conn =
std::make_shared<ConnectionImpl<boost::beast::test::stream>>(
std::move(stream), openHandler, closeHandler);
conn->start();
// Connect
{
constexpr std::string_view expected =
"HTTP/1.1 200 OK\r\n"
"Content-Type: text/event-stream\r\n"
"\r\n";
while (out.str().size() != expected.size())
{
io.run_for(std::chrono::milliseconds(1));
}
std::string eventContent;
eventContent.resize(expected.size());
boost::asio::read(out, boost::asio::buffer(eventContent));
EXPECT_EQ(eventContent, expected);
EXPECT_TRUE(openCalled);
EXPECT_FALSE(closeCalled);
EXPECT_TRUE(out.str().empty());
}
// Send one event
{
conn->sendEvent("TestEventId", "TestEventContent");
std::string_view expected = "id: TestEventId\n"
"data: TestEventContent\n"
"\n";
while (out.str().size() < expected.size())
{
io.run_for(std::chrono::milliseconds(1));
}
EXPECT_EQ(out.str(), expected);
std::string eventContent;
eventContent.resize(expected.size());
boost::asio::read(out, boost::asio::buffer(eventContent));
EXPECT_EQ(eventContent, expected);
EXPECT_TRUE(out.str().empty());
}
// Send second event
{
conn->sendEvent("TestEventId2", "TestEvent\nContent2");
constexpr std::string_view expected = "id: TestEventId2\n"
"data: TestEvent\n"
"data: Content2\n"
"\n";
while (out.str().size() < expected.size())
{
io.run_for(std::chrono::milliseconds(1));
}
std::string eventContent;
eventContent.resize(expected.size());
boost::asio::read(out, boost::asio::buffer(eventContent));
EXPECT_EQ(eventContent, expected);
EXPECT_TRUE(out.str().empty());
}
// close the remote
{
out.close();
while (!closeCalled)
{
io.run_for(std::chrono::milliseconds(1));
}
}
}
} // namespace
} // namespace sse_socket
} // namespace crow
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