Add tests to check that cloud network list is dependent on zone

spec/models/manageiq/providers/azure/cloud_manager/provision_workflow_spec.rb

@@ -160,9 +160,10 @@
 
   context "with VPC relationships" do
     before do
+      @az1 = FactoryGirl.create(:availability_zone, :ext_management_system => ems)
       @cn1 = FactoryGirl.create(:cloud_network, :ext_management_system => ems.network_manager)
-      @cs1 = FactoryGirl.create(:cloud_subnet, :cloud_network => @cn1)
-      @cs2 = FactoryGirl.create(:cloud_subnet, :cloud_network => @cn1)
+      FactoryGirl.create(:cloud_subnet, :cloud_network => @cn1, :availability_zone => @az1)
+      FactoryGirl.create(:cloud_subnet, :cloud_network => @cn1)
     end
 
     context "#allowed_cloud_subnets" do
@@ -175,6 +176,19 @@
         expect(workflow.allowed_cloud_subnets.length).to eq(2)
       end
     end
+
+    context "#allowed_cloud_networks" do
+      it "#allowed_cloud_networks with zone" do
+        workflow.values[:placement_availability_zone] = [@az1.id, @az1.name]
+        cns = workflow.allowed_cloud_networks
+        expect(cns.keys).to match_array [@cn1.id]
+      end
+
+      it "#allowed_cloud_networks without availability zone returns nothing" do
+        cns = workflow.allowed_cloud_networks
+        expect(cns.keys).to match_array []
+      end
+    end
   end
 
   context "#display_name_for_name_description" do