lay/toREST/tests/ws_test.cpp

#include <Catch/catch.hpp>
#include <SessionContext.hpp>
#include <ws.hpp>

SCENARIO("the test suite is working") {
  REQUIRE(true);
  REQUIRE_FALSE(false);
}

struct TestConnection {
  std::string reason_ = "";
  int status_ = 0;
};

struct TestMessage : public std::stringstream {
  std::string string() {
    return str();
  }
};

struct TestWsServer {
  void send_close(std::shared_ptr<TestConnection> con, int status, const std::string &reason) {
    send_close_calls_++;
    con->reason_ = reason;
    con->status_ = status;
  }
  int send_close_calls_ = 0;
};

SCENARIO("we have a websocket resource") {
  TestSession session;
  TestWsServer server;
  auto connection = std::make_shared<TestConnection>();
  GIVEN("the session is valid") {
    session.valid = true;
    WHEN("we open the connection") {
      tr::ws::on_open(server, session, connection);
      THEN("the session should not post torrent torrent updates") {
        REQUIRE(server.send_close_calls_ == 0);
      }
    }
  }
  GIVEN("the session is invalid") {
    WHEN("we open the connection") {
      tr::ws::on_open(server, session, connection);
      THEN("the server should close the connection") {
        REQUIRE(server.send_close_calls_ == 1);
        REQUIRE(connection->status_ == 1011);
        REQUIRE(connection->reason_ == "Session not valid");
      }
    }
  }
  auto message = std::make_shared<TestMessage>();
  GIVEN("we recive an json request") {
    WHEN("the json isn't valid") {
      *message << "Not valid";
      THEN("the server should reject the action") {
        tr::ws::on_message(session, connection, message);
        REQUIRE(server.send_close_calls_ == 0);
        REQUIRE(session.post_torrent_updates_calls_ == 0);
      }
    }
    WHEN("the json is valid but doesn't have any of the required fields") {
      *message << "{}";
      THEN("the server should reject the action") {
        tr::ws::on_message(session, connection, message);
        REQUIRE(server.send_close_calls_ == 0);
        REQUIRE(session.post_torrent_updates_calls_ == 0);
      }
    }
    WHEN("the json is valid and have the required fields but not of valid type") {
      *message << nlohmann::json({{"type", "N/A"}});
      THEN("the server should reject the action") {
        tr::ws::on_message(session, connection, message);
        REQUIRE(server.send_close_calls_ == 0);
        REQUIRE(session.post_torrent_updates_calls_ == 0);
      }
    }
    WHEN("the json is valid and have the required fields") {
      *message << nlohmann::json({{"type", "POST_TORRENT_UPDATES"}});
      THEN("the server should post torrent updates") {
        tr::ws::on_message(session, connection, message);
        REQUIRE(server.send_close_calls_ == 0);
        REQUIRE(session.post_torrent_updates_calls_ == 1);
      }
    }
  }
}