Add more tests for JsonObjectConst

extras/tests/JsonObjectConst/CMakeLists.txt

@@ -0,0 +1,20 @@
+# ArduinoJson - https://arduinojson.org
+# Copyright © 2014-2024, Benoit BLANCHON
+# MIT License
+
+add_executable(JsonObjectConstTests
+	containsKey.cpp
+	equals.cpp
+	isNull.cpp
+	iterator.cpp
+	nesting.cpp
+	size.cpp
+	subscript.cpp
+)
+
+add_test(JsonObjectConst JsonObjectConstTests)
+
+set_tests_properties(JsonObjectConst
+	PROPERTIES
+		LABELS "Catch"
+)