// Copyright (c) 2019 Pantor. All rights reserved.

#define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN

#include "doctest/doctest.h"
#include "inja/inja.hpp"

using json = nlohmann::json;

TEST_CASE("copy-environment") {
  inja::Environment env;
  env.add_callback("double", 1, [](inja::Arguments &args) {
    int number = args.at(0)->get<int>();
    return 2 * number;
  });

  inja::Template t1 = env.parse("{{ double(2) }}");
  env.include_template("tpl", t1);
  std::string test_tpl = "{% include \"tpl\" %}";

  REQUIRE(env.render(test_tpl, json()) == "4");

  inja::Environment copy(env);
  CHECK(copy.render(test_tpl, json()) == "4");

  // overwrite template in source env
  inja::Template t2 = env.parse("{{ double(4) }}");
  env.include_template("tpl", t2);
  REQUIRE(env.render(test_tpl, json()) == "8");

  // template is unchanged in copy
  CHECK(copy.render(test_tpl, json()) == "4");
}