Fix some warnings, Add headers to the solution

test/CMakeLists.txt

@@ -40,9 +40,11 @@ set(test_SRCS
 		erm/ERM_MF.cpp
 		erm/ERM_TM_T.cpp
 		erm/ERM_VR.cpp
+		erm/ERM_UN.cpp
 		erm/ERMPersistenceTest.cpp
 		erm/ExamplesTest.cpp
 		erm/interpretter/ERM_VR.cpp
+		erm/interpretter/ERM_UN.cpp
 		erm/interpretter/ErmRunner.cpp
 
 		events/ApplyDamageTest.cpp

test/erm/interpretter/ERM_UN.cpp

@@ -0,0 +1,28 @@
+/*
+ * ERM_UN.cpp, part of VCMI engine
+ *
+ * Authors: listed in file AUTHORS in main folder
+ *
+ * License: GNU General Public License v2.0 or later
+ * Full text of license available in license.txt file, in main folder
+ *
+ */
+#include "StdInc.h"
+#include "ErmRunner.h"
+
+namespace test
+{
+	namespace scripting
+	{
+		using namespace ::testing;
+
+		TEST(ERM_UN_B, AnyInteger_ShouldGenerateIntToStringConversionAndSetStatement)
+		{
+			LuaStrings lua = ErmRunner::convertErmToLua({ "!#UN:B;" });
+			ASSERT_EQ(lua.lines.size(), 9) << lua.text;
+			EXPECT_EQ(lua.lines[ErmRunner::REGULAR_INSTRUCTION_FIRST_LINE], "ERM.UN():B(x)");
+		}
+	}
+}
+
+