Added unittest for Xcode group support.

modules/self-test/test_helpers.lua

@@ -44,7 +44,10 @@
 		return prj
 	end
 
-
+	function m.createGroup(wks)		
+		local prj = group ("MyGroup" .. (#wks.groups + 1))
+		return prj
+	end
 
 
 	function m.getWorkspace(wks)

modules/xcode/tests/test_xcode4_workspace.lua

@@ -75,6 +75,28 @@
 		]]
 	end
 
+	function suite.onMultipleProjectsGrouped()
+		test.createGroup(wks)
+		test.createproject(wks)
+		prepare()
+		test.capture [[
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+	version = "1.0">
+	<FileRef
+		location = "group:MyProject.xcodeproj">
+	</FileRef>
+	<Group
+		location = "container:"
+		name = "MyGroup1">
+		<FileRef
+			location = "group:MyProject2.xcodeproj">
+		</FileRef>
+	</Group>
+</Workspace>
+		]]
+	end
+
 
 
 --