Ubuntu 16.04: Execute tests on Python 3

Since Python 2 is EOL, we should execute all tests on Python 3.

Author: bastelfreak

spec/acceptance/facts_test_spec.rb

@@ -11,10 +11,10 @@ class { 'python' :
       EOS
 
     fact_notices = <<-EOS
-      notify{"pip_version: ${::pip_version}":}
-      notify{"system_python_version: ${::system_python_version}":}
-      notify{"python_version: ${::python_version}":}
-      notify{"virtualenv_version: ${::virtualenv_version}":}
+      notify{"pip_version: ${facts['pip_version']}":}
+      notify{"system_python_version: ${facts['system_python_version']}":}
+      notify{"python_version: ${facts['python_version']}":}
+      notify{"virtualenv_version: ${facts['virtualenv_version']}":}
       EOS
 
     # rubocop:disable RSpec/RepeatedExample

spec/acceptance/virtualenv_spec.rb

@@ -5,17 +5,21 @@
     # Using puppet_apply as a helper
     it 'works with no errors' do
       pp = <<-EOS
+      if $facts['os']['name'] == 'Ubuntu' and $facts['os']['release']['major'] == '16.04' {
+        $version = '3'
+      } else {
+        $version = 'system'
+      }
       class { 'python' :
-        version    => 'system',
+        version    => $version,
         pip        => 'present',
         virtualenv => 'present',
       }
       -> python::virtualenv { 'venv' :
         ensure     => 'present',
+        version    => $version,
         systempkgs => false,
         venv_dir   => '/opt/venv',
-        owner      => 'root',
-        group      => 'root',
       }
       -> python::pip { 'rpyc' :
         ensure     => '3.2.3',
@@ -30,17 +34,21 @@ class { 'python' :
 
     it 'maintains pip version' do
       pp = <<-EOS
+      if $facts['os']['name'] == 'Ubuntu' and $facts['os']['release']['major'] == '16.04' {
+        $version = '3'
+      } else {
+        $version = 'system'
+      }
       class { 'python' :
-        version    => 'system',
+        version    => $version,
         pip        => 'present',
         virtualenv => 'present',
       }
       -> python::virtualenv { 'venv' :
         ensure     => 'present',
+        version    => $version,
         systempkgs => false,
         venv_dir   => '/opt/venv2',
-        owner      => 'root',
-        group      => 'root',
       }
       -> python::pip { 'pip' :
         ensure     => '18.0',
@@ -55,17 +63,21 @@ class { 'python' :
 
     it 'works with ensure=>latest' do
       pp = <<-EOS
+      if $facts['os']['name'] == 'Ubuntu' and $facts['os']['release']['major'] == '16.04' {
+        $version = '3'
+      } else {
+        $version = 'system'
+      }
       class { 'python' :
-        version    => 'system',
+        version    => $version,
         pip        => 'present',
         virtualenv => 'present',
       }
       -> python::virtualenv { 'venv' :
         ensure     => 'present',
+        version    => $version,
         systempkgs => false,
         venv_dir   => '/opt/venv3',
-        owner      => 'root',
-        group      => 'root',
       }
       -> python::pip { 'rpyc' :
         ensure     => 'latest',
@@ -82,17 +94,21 @@ class { 'python' :
 
     it 'works with ensure=>latest for package with underscore in its name' do
       pp = <<-EOS
+       if $facts['os']['name'] == 'Ubuntu' and $facts['os']['release']['major'] == '16.04' {
+        $version = '3'
+      } else {
+        $version = 'system'
+      }
       class { 'python' :
-        version    => 'system',
+        version    => $version,
         pip        => 'present',
         virtualenv => 'present',
       }
       -> python::virtualenv { 'venv' :
         ensure     => 'present',
+        version    => $version,
         systempkgs => false,
         venv_dir   => '/opt/venv4',
-        owner      => 'root',
-        group      => 'root',
       }
       -> python::pip { 'int_date' :
         ensure     => 'latest',
@@ -109,20 +125,24 @@ class { 'python' :
 
     it 'works with editable=>true' do
       pp = <<-EOS
+      if $facts['os']['name'] == 'Ubuntu' and $facts['os']['release']['major'] == '16.04' {
+        $version = '3'
+      } else {
+        $version = 'system'
+      }
       package{ 'git' :
         ensure => 'present',
       }
       -> class { 'python' :
-        version    => 'system',
+        version    => $version,
         pip        => 'present',
         virtualenv => 'present',
       }
       -> python::virtualenv { 'venv' :
         ensure     => 'present',
+        version    => $version,
         systempkgs => false,
         venv_dir   => '/opt/venv5',
-        owner      => 'root',
-        group      => 'root',
       }
       -> python::pip { 'rpyc' :
         ensure     => '4.1.0',
@@ -139,17 +159,21 @@ class { 'python' :
 
     it 'works with == in pkgname' do
       pp = <<-EOS
+      if $facts['os']['name'] == 'Ubuntu' and $facts['os']['release']['major'] == '16.04' {
+        $version = '3'
+      } else {
+        $version = 'system'
+      }
       class { 'python' :
-        version    => 'system',
+        version    => $version,
         pip        => 'present',
         virtualenv => 'present',
       }
       -> python::virtualenv { 'venv' :
         ensure     => 'present',
+        version    => $version,
         systempkgs => false,
         venv_dir   => '/opt/venv6',
-        owner      => 'root',
-        group      => 'root',
       }
       -> python::pip { 'rpyc==4.1.0' :
         virtualenv => '/opt/venv6',