Working on save args

lib/squib/args/save_batch.rb

@@ -25,6 +25,14 @@ module Squib
         [] # none of them
       end
 
+      def validate_dir(arg)
+        unless Dir.exists?(arg)
+          Squib.logger.warn("Dir '#{arg}' does not exist, creating it.")
+          Dir.mkdir arg
+        end
+        return arg
+      end
+
     end
   end
 end

spec/args/save_batch_spec.rb

@@ -0,0 +1,21 @@
+require 'spec_helper'
+require 'squib/args/save_batch'
+
+describe Squib::Args::SaveBatch do
+  subject(:save_batch) {Squib::Args::SaveBatch.new}
+
+  context 'dir' do
+
+    it 'is created if not exists (and warns)' do
+      opts = {dir: 'tocreate'}
+      Dir.chdir(output_dir) do
+        FileUtils.rm_rf('tocreate', secure: true)
+        expect(Squib.logger).to receive(:warn).with("Dir 'tocreate' does not exist, creating it.").once
+        save_batch.load! opts
+        expect(save_batch).to have_attributes({dir: 'tocreate'})
+        expect(Dir.exists? 'tocreate').to be true
+      end
+    end
+
+  end
+end