lay/toREST/tests/http_test.cpp

#include <Catch/fakeit.hpp>
#include <http.hpp>

using namespace std;

TEST_CASE("Check http status"){
  auto out=http::code(http::ok);
  REQUIRE(out.first == 200);
  REQUIRE(out.second == "OK");
}

SCENARIO("http response"){
  auto response=http::response();
  std::stringstream ss;
  GIVEN("we stream our response without setting given any data"){
    ss << response;
    THEN("the response will default to 200")
      REQUIRE(ss.str()=="HTTP/1.1 200 OK\r\nContent-Length: 6\r\n\r\n200 OK"s);  
  }
  GIVEN("we stream our data with the response status set to 404"){
    response.set_status(http::not_found);
    ss << response;
    THEN("the default 404 response will be sent instead"){
      REQUIRE(ss.str()=="HTTP/1.1 404 Not Found\r\nContent-Length: 13\r\n\r\n404 Not Found"s);
    }
  }
  GIVEN("we stream our response with the status set to 204 No Content"){
    response.set_status(http::no_content);
    ss << response;
    THEN("the response has no content header set")
      REQUIRE(ss.str()=="HTTP/1.1 204 No Content\r\n\r\n"s);
  }
  GIVEN("we stream our response with the body set"){
    response.set_body("Easter eggs, everywhere! <a href=\"http://stream1.gifsoup.com/view4/4086928/x-x-everywhere-o.gif\">ye</a>"s);
    ss << response;
    THEN("our response contains the appropriate headers")
      REQUIRE(ss.str()=="HTTP/1.1 200 OK\r\nContent-Length: 103\r\n\r\nEaster eggs, everywhere! <a href=\"http://stream1.gifsoup.com/view4/4086928/x-x-everywhere-o.gif\">ye</a>"s);
  }
  GIVEN("we add a header to the resource"){
    response.set_body("Nothing"s);
    response.add_header(http::header("Strict-Error"s,"on"s));
    ss << response;
    THEN("our response contains the appropriate headers")
      REQUIRE(ss.str()=="HTTP/1.1 200 OK\r\nStrict-Error: on\r\nContent-Length: 7\r\n\r\nNothing"s);
  }
}

SCENARIO("Stream http responses with a json response"){
  auto response=http::response();
  std::stringstream ss;
  GIVEN("we set the response code to 404 and stream our response"){
    response.set_status(http::not_found);
    response.set_body({{"code",404},{"status","Not Found"}});
    ss << response;
    THEN("our response is valid json and the resoinse code is 404")
      REQUIRE(ss.str()=="HTTP/1.1 404 Not Found\r\nContent-Type: application/json\r\nContent-Length: 33\r\n\r\n{\"code\":404,\"status\":\"Not Found\"}"s);
  }
  GIVEN("we stream our response with the body set"){
    response.set_body(nlohmann::json::object());
    ss << response;
    THEN("our response contains the appropriate headers")
      REQUIRE(ss.str()=="HTTP/1.1 200 OK\r\nContent-Type: application/json\r\nContent-Length: 2\r\n\r\n{}"s);
  }
}