Fix tests

Author: chorrell

spec/node_tests.rb

@@ -1,4 +1,14 @@
 # Node tests
+def dockerfile_node_version(dockerfile_path)
+  File.open(dockerfile_path) do |file|
+    file.each_line do |line|
+      if line =~ /^ENV NODE_VERSION=([0-9]+\.[0-9]+\.[0-9]+)/
+        return $1
+      end
+    end
+  end
+  raise "NODE_VERSION not found in #{dockerfile_path}"
+end
 
 def test_node(version)
   describe command('node -v') do

spec/spec_helper.rb

@@ -1,14 +1,4 @@
 module Helpers
-  def dockerfile_node_version(dockerfile_path)
-    File.open(dockerfile_path) do |file|
-      file.each_line do |line|
-        if line =~ /^ENV NODE_VERSION=([0-9]+\.[0-9]+\.[0-9]+)/
-          return $1
-        end
-      end
-    end
-    raise "NODE_VERSION not found in #{dockerfile_path}"
-  end
   def create_image(version)
 
     puts "Building image..."