test(magnesium): add pillar and tests for `3002`

test/integration/v3002-py3/controls/pkgs_spec.rb

+# frozen_string_literal: true
+
+control 'salt packages' do
+  title 'should be installed'
+
+  version = '3002'
+
+  %w[
+    salt-master
+    salt-minion
+  ].each do |p|
+    describe package(p) do
+      it { should be_installed }
+      its('version') { should match(/^#{version}/) }
+    end
+  end
+end

test/integration/v3002-py3/controls/service_spec.rb

+# frozen_string_literal: true
+
+control 'salt services' do
+  title 'should be running'
+
+  %w[
+    salt-master
+    salt-minion
+  ].each do |p|
+    describe service(p) do
+      it { should be_installed }
+      it { should be_enabled }
+      it { should be_running }
+    end
+  end
+end

test/salt/pillar/v3002-py3.sls

+# -*- coding: utf-8 -*-
+# vim: ft=yaml
+---
+salt:
+  release: '3002'
+  py_ver: 'py3'