add nspace_extend test case

Examples/test-suite/lua/nspace_extend_runme.lua

@@ -0,0 +1,39 @@
+require("import")	-- the import fn
+import("nspace_extend")	-- import lib
+
+-- catch "undefined" global variables
+local env = _ENV -- Lua 5.2
+if not env then env = getfenv () end -- Lua 5.1
+setmetatable(env, {__index=function (t,i) error("undefined global variable `"..i.."'",2) end})
+
+ne = nspace_extend
+
+-- Inner1
+
+-- Constructors
+in1_clr1 = ne.Outer.Inner1.Color()
+in1_clr2 = ne.Outer.Inner1.Color.create()
+in1_clr3 = ne.Outer.Inner1.Color(in1_clr2)
+
+-- methods
+in1_clr1:colorInstanceMethod(1.0)
+ne.Outer.Inner1.Color.colorStaticMethod(2.0)
+
+-- Inner2
+
+-- Constructors
+in2_clr1 = ne.Outer.Inner2.Color()
+in2_clr2 = ne.Outer.Inner2.Color.create()
+in2_clr3 = ne.Outer.Inner2.Color(in2_clr2)
+
+assert(pcall(ne.Outer.Inner2.Color, in1_clr1) == false)
+
+-- methods
+in2_clr1:colorInstanceMethod(1.0)
+ne.Outer.Inner2.Color.colorStaticMethod(2.0)
+
+in2_clr3:colors(in1_clr1, in1_clr2, in2_clr2, in2_clr2, in2_clr3)
+
+assert(pcall(in2_clr3.colors, in2_clr3,
+  in2_clr1, in2_clr2, in1_clr2, in2_clr2, in2_clr3) == false)
+