Add spec tests, update dependencies

spec/classes/init_spec.rb

@@ -0,0 +1,34 @@
+require 'spec_helper'
+describe 'arpwatch', type: 'class' do
+    context 'On RedHat 7 with no parameters' do
+        let (:facts) { { osfamily: 'RedHat', operatingsystemmajrelease: '7' } }
+        it {
+            should contain_package('arpwatch').with({'ensure'=>'installed'})
+            should contain_file('/etc/sysconfig/arpwatch').with({'ensure'=>'file'})
+        }
+    end
+    context 'On RedHat 6 with no parameters' do
+        let (:facts) { { osfamily: 'RedHat', operatingsystemmajrelease: '6' } }
+        it {
+            should contain_package('arpwatch').with({'ensure'=>'installed'})
+            should contain_file('/etc/sysconfig/arpwatch').with({'ensure'=>'file'})
+        }
+    end
+    context 'On RedHat 5 with no parameters' do
+        let (:facts) { { osfamily: 'RedHat', operatingsystemmajrelease: '6' } }
+        it {
+            should contain_package('arpwatch').with({'ensure'=>'installed'})
+            should contain_file('/etc/sysconfig/arpwatch').with({'ensure'=>'file'})
+        }
+    end
+    context 'On an unknown OS' do
+        let :facts do
+            {
+                :osfamily => 'Darwin'
+            }
+        end
+        it {
+            expect { should raise_error(Puppet::Error) }
+        }
+    end
+end

spec/spec_helper.rb

@@ -0,0 +1,6 @@
+require 'rspec-puppet'
+fixture_path = File.expand_path(File.join(__FILE__, '..', 'fixtures'))
+RSpec.configure do |c|
+    c.module_path = File.join(fixture_path, 'modules')
+    c.manifest_dir = File.join(fixture_path, 'manifests')
+end