ArduinoJson/extras/tests/JsonDocument/add.cpp

// ArduinoJson - https://arduinojson.org
// Copyright © 2014-2023, Benoit BLANCHON
// MIT License

#define ARDUINOJSON_ENABLE_ARDUINO_STRING 1
#define ARDUINOJSON_ENABLE_PROGMEM 1
#include <ArduinoJson.h>

#include <catch.hpp>

using ArduinoJson::detail::sizeofArray;
using ArduinoJson::detail::sizeofString;

TEST_CASE("JsonDocument::add()") {
  JsonDocument doc(4096);

  SECTION("integer") {
    doc.add(42);

    REQUIRE(doc.as<std::string>() == "[42]");
  }

  SECTION("const char*") {
    doc.add("hello");

    REQUIRE(doc.as<std::string>() == "[\"hello\"]");
  }

  SECTION("std::string") {
    doc.add(std::string("example"));
    doc.add(std::string("example"));

    CHECK(doc.memoryUsage() == sizeofArray(2) + sizeofString(7));
    CHECK(doc[0].as<const char*>() == doc[1].as<const char*>());
  }

  SECTION("char*") {
    char value[] = "example";
    doc.add(value);
    doc.add(value);

    CHECK(doc.memoryUsage() == sizeofArray(2) + sizeofString(7));
    CHECK(doc[0].as<const char*>() == doc[1].as<const char*>());
  }

  SECTION("Arduino String") {
    doc.add(String("example"));
    doc.add(String("example"));

    CHECK(doc.memoryUsage() == sizeofArray(2) + sizeofString(7));
    CHECK(doc[0].as<const char*>() == doc[1].as<const char*>());
  }

  SECTION("Flash string") {
    doc.add(F("example"));
    doc.add(F("example"));

    CHECK(doc.memoryUsage() == sizeofArray(2) + sizeofString(7));
    CHECK(doc[0].as<const char*>() == doc[1].as<const char*>());
  }
}