Cleaned up the elixir test_helper.exs a bit

lib/elixir/test/elixir/test_helper.exs

@@ -18,14 +18,20 @@ defmodule PathHelpers do
     Path.join(tmp_path, extra)
   end
 
+  def elixirc(args) do
+    runcmd(elixirc_executable,args)
+  end
+  
+  def elixir(args) do
+    runcmd(elixir_executable,args)
+  end
+  
   if match? { :win32, _ }, :os.type do
     def executable_extension, do: ".bat"
-    def elixirc(args), do: :os.cmd binary_to_list("#{elixirc_executable} #{:unicode.characters_to_binary(args)} 2>&1")
-    def elixir(args), do: :os.cmd binary_to_list("#{elixir_executable} #{:unicode.characters_to_binary(args)} 2>&1")
+    defp runcmd(executable,args), do: :os.cmd binary_to_list("#{executable} #{:unicode.characters_to_binary(args)} 2>&1")
   else
     def executable_extension, do: ""
-    def elixirc(args), do: :os.cmd binary_to_list("#{elixirc_executable} #{:unicode.characters_to_binary(args)}")
-    def elixir(args), do: :os.cmd binary_to_list("#{elixir_executable} #{:unicode.characters_to_binary(args)}")
+    defp runcmd(executable,args), do: :os.cmd binary_to_list("#{executable} #{:unicode.characters_to_binary(args)}")
   end
 
   def elixir_executable do
@@ -35,7 +41,6 @@ defmodule PathHelpers do
   def elixirc_executable do
     Path.expand("../../../../../bin/elixirc#{executable_extension}", __FILE__)
   end
-
 end
 
 defmodule CompileAssertion do