// ArduinoJson - https://arduinojson.org // Copyright © 2014-2024, Benoit BLANCHON // MIT License #include #include TEST_CASE("JsonVariantConst::isNull()") { JsonDocument doc; JsonVariantConst variant = doc.to(); SECTION("returns true when undefined") { REQUIRE(variant.isNull() == true); } SECTION("returns false if value is integer") { doc.set(42); REQUIRE(variant.isNull() == false); } }