lay/toREST/tests/http_test.cpp

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

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::string body;
  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");
  }
  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");
    }
  }
  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");
  }
  GIVEN("we stream our response with the body set") {
    body = "Easter eggs, everywhere! <a href=\"http://stream1.gifsoup.com/view4/4086928/x-x-everywhere-o.gif\">ye</a>";
    response.set_body(body);
    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>");
  }
  GIVEN("we add a header to the resource") {
    body = "Nothing";
    response.set_body(body);
    response.add_header(http::header("Strict-Error", "on"));
    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");
  }
}

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\"}");
  }
  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{}");
  }
}