EPEL only makes sense on RH systems but not Fedora (voxpupuli#297)

* EPEL only makes sense on RH systems but not Fedora

* Updated documentation, added test

* updated tests: is RHEL has EPEL, is Fedora no EPEL, is RPM based but not RHEL, is Debian

README.md

@@ -66,7 +66,7 @@ Installs and manages python, python-pip, python-dev, python-virtualenv and Gunic
 
 **manage_gunicorn** - Allow Installation / Removal of Gunicorn. Default: true
 
-**use_epel** - Boolean to determine if the epel class is used. Default: true
+**use_epel** - Boolean to determine if the epel class is used. Default: true on RHEL like systems, false otherwise
 
 ```puppet
   class { 'python' :

manifests/params.pp

@@ -17,7 +17,16 @@
     'Suse'   => [],
     'Gentoo' => ['2.7', '3.3', '3.4', '3.5']
   }
-  $use_epel               = true
+
+  if $::osfamily == 'RedHat' {
+    if $::operatingsystem != 'Fedora' {
+      $use_epel           = true
+    } else {
+      $use_epel           = false
+    }
+  } else {
+    $use_epel             = false
+  }
 
   $gunicorn_package_name = $::osfamily ? {
     'RedHat' => 'python-gunicorn',

spec/classes/python_spec.rb

@@ -90,8 +90,37 @@
         it { is_expected.to contain_package("python-dev").with_ensure('absent') }
       end
     end
+
+    describe "EPEL does not exist for Debian" do
+      context "default/empty" do
+        it { should_not contain_class('epel') }
+      end
+    end
+
+  end
+
+  context "on a Fedora 22 OS" do
+    let :facts do
+      {
+        :id => 'root',
+        :kernel => 'Linux',
+        :osfamily => 'RedHat',
+        :operatingsystem => 'Fedora',
+        :operatingsystemrelease => '22',
+        :concat_basedir => '/dne',
+        :path => '/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin',
+      }
+    end
+
+    describe "EPEL does not exist for Fedora" do
+      context "default/empty" do
+        it { should_not contain_class('epel') }
+      end
+    end
+
   end
 
+
   context "on a Redhat 5 OS" do
     let :facts do
       {
@@ -112,6 +141,12 @@
     # Basic python packages (from pip)
     it { is_expected.to contain_package("virtualenv")}
 
+    describe "EPEL may be needed on EL" do
+      context "default/empty" do
+        it { should contain_class('epel') }
+      end
+    end
+
     describe "with python::dev" do
       context "true" do
         let (:params) {{ :dev => 'present' }}
@@ -271,6 +306,12 @@
         it { is_expected.to contain_package("python-dev").with_ensure('absent') }
       end
     end
+
+    describe "EPEL does not exist on Suse" do
+      context "default/empty" do
+        it { should_not contain_class('epel') }
+      end
+    end
   end
 
   context "on a Gentoo OS" do