Split unit test into several executables

test/JsonObject/CMakeLists.txt

@@ -0,0 +1,22 @@
+# Copyright Benoit Blanchon 2014-2017
+# MIT License
+# 
+# Arduino JSON library
+# https://bblanchon.github.io/ArduinoJson/
+# If you like this project, please add a star!
+
+add_executable(JsonObjectTests 
+	basics.cpp
+	containsKey.cpp
+	get.cpp
+	invalid.cpp
+	iterator.cpp
+	prettyPrintTo.cpp
+	printTo.cpp
+	remove.cpp
+	set.cpp
+	subscript.cpp
+)
+
+target_link_libraries(JsonObjectTests gtest)
+add_test(JsonObject JsonObjectTests)