adding file processing test

Author: David Zuckerman

spec/bfs_spec.rb

@@ -20,9 +20,9 @@
 
   it 'Processes an invoice and creates error files and BFS file' do
     BFS.seed!
-    # BFS.process! bfs_file
-    # expect(Pathname.new(bfs_processed)).to exist
-    # expect(Pathname.new(bfs_error)).to exist
+    BFS.process! bfs_file
+    expect(Pathname.new(bfs_processed)).to exist
+    expect(Pathname.new(bfs_error)).to exist
   end
 
   it 'Removes test invoices from data directories' do