Add tests for user_right_assignment

lib/puppet/type/user_right_assignment.rb

@@ -11,7 +11,7 @@
         desc 'The right to append users to'
 
         validate do |value|
-            fail "Invalid right name #{value}" unless value =~ /^[A-Za-z]+$/
+            fail "Not a valid right name: '#{value}'" unless value =~ /^[A-Za-z]+$/
         end
 
         munge do |value|

spec/unit/puppet/type/user_right_assignment_spec.rb

@@ -1,4 +1,21 @@
 require 'spec_helper'
 
-describe Puppet::Type.type(:user_rights_assignment) do
+describe Puppet::Type.type(:user_right_assignment) do
+    let(:valid_right) { 'seassignprimarytokenprivilege' }
+
+    context 'when validating right' do
+        it 'should accept a valid string' do
+            res = described_class.new(:title => 'abc', :right => valid_right)
+            expect(res[:right]).to eq(valid_right)
+        end
+
+        it 'should fail with an invalid right' do
+            expect {
+                described_class.new(
+                    :title => 'abc',
+                    :right => 'abc1',
+                )
+            }.to raise_error(Puppet::Error, /Not a valid right name: 'abc1'/)
+        end
+    end
 end