diff --git a/spec/classes/fluentd_config_spec.rb b/spec/classes/fluentd_config_spec.rb
index b05a702..395f2a2 100644
--- a/spec/classes/fluentd_config_spec.rb
+++ b/spec/classes/fluentd_config_spec.rb
@@ -1,16 +1,7 @@
 require 'spec_helper'
 
 describe 'fluentd::config', :type => :class do
-  let(:facts) {
-    {
-      :osfamily        => 'Debian',
-      :lsbdistid       => 'Ubuntu',
-      :operatingsystem => 'Ubuntu',
-      :lsbdistcodename => 'precise',
-    }
-  }
-
-  describe 'when called with no parameters on Ubuntu' do
+  shared_examples 'when called with no parameters' do
     it {
       should contain_file('/etc/td-agent/td-agent.conf').with({
         'ensure' => 'file',
@@ -28,4 +19,27 @@ describe 'fluentd::config', :type => :class do
       })
     }
   end
+
+  context 'when osfamily is Debian' do
+    let(:facts) {
+      {
+        :osfamily        => 'Debian',
+        :lsbdistid       => 'Ubuntu',
+        :operatingsystem => 'Ubuntu',
+        :lsbdistcodename => 'precise',
+      }
+    }
+
+    include_examples 'when called with no parameters'
+  end
+
+  context 'when osfamily is RedHat' do
+    let(:facts) {
+      {
+        :osfamily => 'RedHat',
+      }
+    }
+
+    include_examples 'when called with no parameters'
+  end
 end
diff --git a/spec/classes/fluentd_install_spec.rb b/spec/classes/fluentd_install_spec.rb
index bd7044e..9a5e7f0 100644
--- a/spec/classes/fluentd_install_spec.rb
+++ b/spec/classes/fluentd_install_spec.rb
@@ -1,16 +1,8 @@
 require 'spec_helper'
 
 describe 'fluentd::install', :type => :class do
-  let(:facts) {
-    {
-      :osfamily        => 'Debian',
-      :lsbdistid       => 'Ubuntu',
-      :operatingsystem => 'Ubuntu',
-      :lsbdistcodename => 'precise',
-    }
-  }
 
-  describe 'when called with no parameters on Ubuntu' do
+  shared_examples 'when called with no parameters' do
     it {
       should contain_package('fluentd').with({
         'ensure'          => 'installed',
@@ -19,4 +11,27 @@ describe 'fluentd::install', :type => :class do
       })
     }
   end
+
+  context 'when osfamily is Debian' do
+    let(:facts) {
+      {
+        :osfamily        => 'Debian',
+        :lsbdistid       => 'Ubuntu',
+        :operatingsystem => 'Ubuntu',
+        :lsbdistcodename => 'precise',
+      }
+    }
+    include_examples 'when called with no parameters'
+  end
+
+  context 'when osfamily is RedHat' do
+    let(:facts) {
+      {
+        :osfamily => 'RedHat',
+      }
+    }
+
+    include_examples 'when called with no parameters'
+  end
+
 end
diff --git a/spec/classes/fluentd_repo_spec.rb b/spec/classes/fluentd_repo_spec.rb
index 1202478..6ad8b4f 100644
--- a/spec/classes/fluentd_repo_spec.rb
+++ b/spec/classes/fluentd_repo_spec.rb
@@ -1,18 +1,29 @@
 require 'spec_helper'
 
 describe 'fluentd::repo', :type => :class do
-  let(:facts) {
-    {
-      :osfamily        => 'Debian',
-      :lsbdistid       => 'Ubuntu',
-      :operatingsystem => 'Ubuntu',
-      :lsbdistcodename => 'precise',
-    }
-  }
 
-  describe 'when called with no parameters on Ubuntu' do
+  context 'when called with no parameters on osfamily Debian' do
+    let(:facts) {
+      {
+        :osfamily        => 'Debian',
+        :lsbdistid       => 'Ubuntu',
+        :operatingsystem => 'Ubuntu',
+        :lsbdistcodename => 'precise',
+      }
+    }
     it {
       should contain_class('fluentd::repo::apt')
     }
   end
+
+  context 'when called with no parameters on osfamily RedHat' do
+    let(:facts) {
+      {
+        :osfamily => 'RedHat',
+      }
+    }
+    it {
+      should contain_class('fluentd::repo::yum')
+    }
+  end
 end
diff --git a/spec/classes/fluentd_service_spec.rb b/spec/classes/fluentd_service_spec.rb
index 402b2cd..c7789e6 100644
--- a/spec/classes/fluentd_service_spec.rb
+++ b/spec/classes/fluentd_service_spec.rb
@@ -1,16 +1,7 @@
 require 'spec_helper'
 
 describe 'fluentd::config', :type => :class do
-  let(:facts) {
-    {
-      :osfamily        => 'Debian',
-      :lsbdistid       => 'Ubuntu',
-      :operatingsystem => 'Ubuntu',
-      :lsbdistcodename => 'precise',
-    }
-  }
-
-  describe 'when called with no parameters on Ubuntu' do
+  shared_examples 'when called with no parameters' do
     it {
       should contain_service('fluentd').with({
         'name'       => 'td-agent',
@@ -21,4 +12,27 @@ describe 'fluentd::config', :type => :class do
       })
     }
   end
+
+  context 'when osfamily is Debian' do
+    let(:facts) {
+      {
+        :osfamily        => 'Debian',
+        :lsbdistid       => 'Ubuntu',
+        :operatingsystem => 'Ubuntu',
+        :lsbdistcodename => 'precise',
+      }
+    }
+
+    include_examples 'when called with no parameters'
+  end
+
+  context 'when osfamily is RedHat' do
+    let(:facts) {
+      {
+        :osfamily => 'RedHat',
+      }
+    }
+
+    include_examples 'when called with no parameters'
+  end
 end
diff --git a/spec/classes/fluentd_spec.rb b/spec/classes/fluentd_spec.rb
index 4673b10..696e0f7 100644
--- a/spec/classes/fluentd_spec.rb
+++ b/spec/classes/fluentd_spec.rb
@@ -1,16 +1,7 @@
 require 'spec_helper'
 
 describe 'fluentd', :type => :class do
-  let(:facts) {
-    {
-      :osfamily        => 'Debian',
-      :lsbdistid       => 'Ubuntu',
-      :operatingsystem => 'Ubuntu',
-      :lsbdistcodename => 'precise',
-    }
-  }
-
-  describe 'when called with no parameters on Ubuntu' do
+  shared_examples 'when called with no parameters' do
     it {
       should contain_class('fluentd::repo')
       should contain_class('fluentd::install')
@@ -18,4 +9,28 @@ describe 'fluentd', :type => :class do
       should contain_class('fluentd::service')
     }
   end
+
+  context 'when osfamily is Debian' do
+    let(:facts) {
+      {
+        :osfamily        => 'Debian',
+        :lsbdistid       => 'Ubuntu',
+        :operatingsystem => 'Ubuntu',
+        :lsbdistcodename => 'precise',
+      }
+    }
+
+    include_examples 'when called with no parameters'
+  end
+
+  context 'when osfamily is RedHat' do
+    let(:facts) {
+      {
+        :osfamily => 'RedHat',
+      }
+    }
+
+    include_examples 'when called with no parameters'
+  end
+
 end
diff --git a/spec/classes/fluentd_user_spec.rb b/spec/classes/fluentd_user_spec.rb
index 12af089..fcf37ad 100644
--- a/spec/classes/fluentd_user_spec.rb
+++ b/spec/classes/fluentd_user_spec.rb
@@ -1,16 +1,7 @@
 require 'spec_helper'
 
 describe 'fluentd::user', :type => :class do
-  let(:facts) {
-    {
-      :osfamily        => 'Debian',
-      :lsbdistid       => 'Ubuntu',
-      :operatingsystem => 'Ubuntu',
-      :lsbdistcodename => 'precise',
-    }
-  }
-
-  describe 'when called with no parameters on Ubuntu' do
+  shared_examples 'when called with no parameters' do
     it {
       should contain_user('fluentd').with({
         'name'   => 'td-agent',
@@ -19,4 +10,27 @@ describe 'fluentd::user', :type => :class do
       })
     }
   end
+
+  context 'when osfamily is Debian' do
+    let(:facts) {
+      {
+        :osfamily        => 'Debian',
+        :lsbdistid       => 'Ubuntu',
+        :operatingsystem => 'Ubuntu',
+        :lsbdistcodename => 'precise',
+      }
+    }
+
+    include_examples 'when called with no parameters'
+  end
+
+  context 'when osfamily is RedHat' do
+    let(:facts) {
+      {
+        :osfamily => 'RedHat',
+      }
+    }
+
+    include_examples 'when called with no parameters'
+  end
 end