Updated CLI and Config to default to not writing a pidfile unless daemonized.

spec/config_spec.rb

@@ -1,15 +1,42 @@
 require 'spec_helper'
 
 describe Crono::Config do
+  let(:config) { Crono::Config.new }
   describe '#initialize' do
     it 'should initialize with default configuration options' do
       ENV['RAILS_ENV'] = 'test'
       @config = Crono::Config.new
       expect(@config.cronotab).to be Crono::Config::CRONOTAB
       expect(@config.logfile).to be Crono::Config::LOGFILE
-      expect(@config.pidfile).to be Crono::Config::PIDFILE
+      expect(@config.pidfile).to be nil
       expect(@config.daemonize).to be false
       expect(@config.environment).to be_eql ENV['RAILS_ENV']
     end
+
+    describe "#pidfile" do
+      subject(:pidfile) { config.pidfile }
+
+      context "not explicity configured" do
+        context "daemonize is false" do
+          before { config.daemonize = false }
+
+          specify { expect(pidfile).to be_nil }
+        end
+
+        context "daemonize is true" do
+          before { config.daemonize = true }
+
+          specify { expect(pidfile).to eq Crono::Config::PIDFILE }
+        end
+      end
+
+      context "explicity configured" do
+        let(:path) { "foo/bar/pid.pid" }
+
+        before { config.pidfile = path }
+
+        specify { expect(pidfile).to eq path }
+      end
+    end
   end
 end