ArduinoJson/test/Misc/TypeTraits.cpp

// ArduinoJson - arduinojson.org
// Copyright Benoit Blanchon 2014-2023
// MIT License

#include <ArduinoJson.h>
#include <catch.hpp>

using namespace ArduinoJson::Internals;

TEST_CASE("TypeTraits") {
  SECTION("IsBaseOf") {
    REQUIRE_FALSE(
        static_cast<bool>(IsBaseOf<std::istream, std::ostringstream>::value));
    REQUIRE(
        static_cast<bool>(IsBaseOf<std::istream, std::istringstream>::value));
    REQUIRE(static_cast<bool>(
        IsBaseOf<JsonVariantBase<JsonObjectSubscript<const char*> >,
                 JsonObjectSubscript<const char*> >::value));
  }

  SECTION("IsArray") {
    REQUIRE_FALSE((IsArray<const char*>::value));
    REQUIRE((IsArray<const char[]>::value));
    REQUIRE((IsArray<const char[10]>::value));
  }

  SECTION("IsVariant") {
    REQUIRE(
        static_cast<bool>(IsVariant<JsonObjectSubscript<const char*> >::value));
    REQUIRE(static_cast<bool>(IsVariant<JsonVariant>::value));
  }

  SECTION("IsConst") {
    REQUIRE_FALSE((IsConst<char>::value));
    REQUIRE((IsConst<const char>::value));
  }
}