extract spec fs helper into module

Author: wfleming

spec/cc/engine/rubocop_spec.rb

@@ -4,6 +4,7 @@
 
 module CC::Engine
   describe Rubocop do
+    include FilesystemHelpers
     before { @code = Dir.mktmpdir }
 
     describe "#run" do
@@ -333,12 +334,6 @@ def issues(output)
         output.split("\0").map { |x| JSON.parse(x) }
       end
 
-      def create_source_file(path, content)
-        abs_path = File.join(@code, path)
-        FileUtils.mkdir_p(File.dirname(abs_path))
-        File.write(abs_path, content)
-      end
-
       def run_engine(config = nil)
         io = StringIO.new
         rubocop = Rubocop.new(@code, config, io)

spec/spec_helper.rb

@@ -1 +1,3 @@
 require "rspec"
+
+Dir.glob("spec/support/**/*.rb").each(&method(:load))

spec/support/filesystem_helpers.rb

@@ -0,0 +1,7 @@
+module FilesystemHelpers
+  def create_source_file(path, content)
+    abs_path = File.join(@code, path)
+    FileUtils.mkdir_p(File.dirname(abs_path))
+    File.write(abs_path, content)
+  end
+end