allow installing non-version locked package on Red Hat with repo method

fixed spec syntax error, and locking json_pure to compatible version for rbuy 1.9

Author: lukebigum

Gemfile

@@ -5,10 +5,11 @@ group :test do
   gem "puppet", ENV['PUPPET_VERSION'] || '~> 3.6.0'
   gem 'metadata-json-lint'
   gem "puppet-lint"
-  gem "rspec-puppet", :git => 'https://github.com/rodjek/rspec-puppet.git'
+  gem "rspec-puppet"
   gem "puppet-syntax"
   gem "puppetlabs_spec_helper"
   gem "toml"
+  gem 'json_pure', '<= 1.8.3', :require => false if RUBY_VERSION.to_f <= 1.9
 end
 
 group :development do

manifests/install.pp

@@ -18,7 +18,7 @@
       default           => $real_archive_source,
     }
   }
-  
+
   case $::grafana::install_method {
     'docker': {
       docker::image { 'grafana/grafana':
@@ -107,8 +107,13 @@
             }
           }
 
+          if ($::grafana::version == 'installed' or $::grafana::version == 'latest' or  $::grafana::version == 'present') {
+            $package_ensure = $::grafana::version
+          } else {
+            $package_ensure = "${::grafana::version}-${::grafana::rpm_iteration}"
+          }
           package { $::grafana::package_name:
-            ensure  => "${::grafana::version}-${::grafana::rpm_iteration}",
+            ensure  => $package_ensure,
             require => Package['fontconfig']
           }
         }

spec/classes/grafana_spec.rb

@@ -139,6 +139,17 @@
         it { should contain_package('grafana').with_ensure('present') }
       end
     end
+
+    context 'redhat' do
+      let(:facts) {{
+        :osfamily => 'RedHat',
+      }}
+
+      it { should compile.with_all_deps }
+      describe 'install the package' do
+        it { should contain_package('grafana').with_ensure('present') }
+      end
+    end
   end
 
   context 'archive install method' do