fix xcode tests as well.

modules/xcode/tests/test_header_footer.lua

@@ -17,6 +17,7 @@
 	local wks
 
 	function suite.setup()
+		p.action.set('xcode4')
 		wks = test.createWorkspace()
 	end
 

modules/xcode/tests/test_xcode4_project.lua

@@ -49,8 +49,7 @@
 	end
 
 	function suite.setup()
-		_TARGET_OS = "macosx"
-		_ACTION = "xcode4"
+		p.action.set('xcode4')
 		io.eol = "\n"
 		xcode.used_ids = { } -- reset the list of generated IDs
 		wks = test.createWorkspace()

modules/xcode/tests/test_xcode4_workspace.lua

@@ -18,7 +18,7 @@
 	local wks, prj
 
 	function suite.setup()
-		_ACTION = "xcode4"
+		p.action.set('xcode4')
 		wks = test.createWorkspace()
 	end
 

modules/xcode/tests/test_xcode_dependencies.lua

@@ -23,7 +23,7 @@
 	end
 
 	function suite.setup()
-		_ACTION = "xcode4"
+		p.action.set('xcode4')
 		xcode.used_ids = { } -- reset the list of generated IDs
 
 		wks, prj = test.createWorkspace()

modules/xcode/tests/test_xcode_project.lua

@@ -20,8 +20,7 @@
 	end
 
 	function suite.setup()
-		_TARGET_OS = "macosx"
-		_ACTION = "xcode4"
+		p.action.set('xcode4')
 		p.eol("\n")
 		xcode.used_ids = { } -- reset the list of generated IDs
 		wks = test.createWorkspace()