Documentation for module 'NDK'

Former-commit-id: 7d8a51d8ad14bfb16a76b8d77c92c776bfb694ab [formerly 1dac8450f2eddf175b3eb2b6675621ea0b2a0df7] [formerly bb4300770d267df0eed5c509ec748c6866f36376 [formerly d15a100319ffc8805c7f93c9bcd936e204dad40b]]
Former-commit-id: 83a4715ed2a3220b7ef4718401d50ce584d275fc [formerly a941a150d510a51daed4322723795d90b6d56724]
Former-commit-id: f46308abb0bc577d73447f6a574ec091a50a9cca

tests/SDK/NDK/System.cpp

@@ -0,0 +1,42 @@
+#include <NDK/System.hpp>
+#include <Catch/catch.hpp>
+
+namespace
+{
+	class TestSystem : public Ndk::System<TestSystem>
+	{
+		public:
+			TestSystem()
+			{
+			}
+
+			~TestSystem() = default;
+
+			static Ndk::SystemIndex systemIndex;
+
+		private:
+			void OnUpdate(float elapsedTime) override
+			{
+			}
+	};
+
+	Ndk::SystemIndex TestSystem::systemIndex;
+}
+
+SCENARIO("System", "[NDK][SYSTEM]")
+{
+	GIVEN("Our TestSystem")
+	{
+		TestSystem testSystem;
+
+		WHEN("We clone it")
+		{
+			std::unique_ptr<Ndk::BaseSystem> clone = testSystem.Clone();
+
+			THEN("We should get a copy")
+			{
+				REQUIRE(dynamic_cast<TestSystem*>(clone.get()) != nullptr);
+			}
+		}
+	}
+}