ArduinoJson/extras/tests/JsonVariant/remove.cpp

// ArduinoJson - https://arduinojson.org
// Copyright © 2014-2022, Benoit BLANCHON
// MIT License

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

static const char* null = 0;

TEST_CASE("JsonVariant::remove()") {
  DynamicJsonDocument doc(4096);
  JsonVariant var = doc.to<JsonVariant>();

  SECTION("remove(int)") {
    var.add(1);
    var.add(2);
    var.add(3);

    var.remove(1);

    REQUIRE(var.as<std::string>() == "[1,3]");
  }

  SECTION("remove(const char *)") {
    var["a"] = 1;
    var["b"] = 2;

    var.remove("a");

    REQUIRE(var.as<std::string>() == "{\"b\":2}");
  }

  SECTION("remove(std::string)") {
    var["a"] = 1;
    var["b"] = 2;

    var.remove(std::string("b"));

    REQUIRE(var.as<std::string>() == "{\"a\":1}");
  }

  SECTION("linked array") {
    StaticJsonDocument<128> doc2;
    doc2[0] = 42;
    var.link(doc2);

    var.remove(0);

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

  SECTION("linked object") {
    StaticJsonDocument<128> doc2;
    doc2["hello"] = "world";
    var.link(doc2);

    var.remove("hello");

    CHECK(var.as<std::string>() == "{\"hello\":\"world\"}");
  }
}