First banch of tests

Examples/test-suite/lua/fvirtual_runme.lua

@@ -0,0 +1,17 @@
+require("import")	-- the import fn
+import("fvirtual")	-- import lib into global
+f=fvirtual --alias
+
+-- catching undefined 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})
+
+n1 = f.Node()
+n2 = f.Node()
+assert(n1:addChild(n2) == 1)
+
+ns = f.NodeSwitch()
+assert(ns:addChild(n2) == 2)
+assert(ns:addChild(ns) == 2)
+assert(ns:addChild(n1, false) == 3)