Restore the spec file which was deleted unexpectedly

The commit 76a80d9e6c03290bc7445fb1bb2d03f0552a0434 removed one spec
file unexpectedly. This change reverts that deletion so that we have
proper unit test coverage.

Change-Id: I515022f78ddd49bfa626abe6586e1b03c036f525
(cherry picked from commit 1aa0caa31961b77f0d2f6535be9ebf6d8991b4d5)
(cherry picked from commit 6106fc4828d5ae03c1f0662ebdae640bd6d7f436)

spec/classes/tripleo_profile_base_nova_conductor_spec.rb

@@ -0,0 +1,61 @@
+#
+# Copyright (C) 2017 Red Hat, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+
+require 'spec_helper'
+
+describe 'tripleo::profile::base::nova::conductor' do
+  shared_examples_for 'tripleo::profile::base::nova::conductor' do
+    let(:pre_condition) do
+      <<-eos
+      class { 'tripleo::profile::base::nova':
+        step => #{params[:step]},
+        oslomsg_rpc_hosts => [ '127.0.0.1' ],
+      }
+eos
+    end
+
+    context 'with step less than 4' do
+      let(:params) { { :step => 1, } }
+
+      it {
+        is_expected.to contain_class('tripleo::profile::base::nova::conductor')
+        is_expected.to contain_class('tripleo::profile::base::nova')
+        is_expected.to_not contain_class('nova::conductor')
+      }
+    end
+
+    context 'with step 4' do
+      let(:params) { { :step => 4, } }
+
+      it {
+        is_expected.to contain_class('tripleo::profile::base::nova::conductor')
+        is_expected.to contain_class('tripleo::profile::base::nova')
+        is_expected.to contain_class('nova::conductor')
+      }
+    end
+  end
+
+
+  on_supported_os.each do |os, facts|
+    context "on #{os}" do
+      let(:facts) do
+        facts.merge({ :hostname => 'node.example.com' })
+      end
+
+      it_behaves_like 'tripleo::profile::base::nova::conductor'
+    end
+  end
+end