* Added VIF model and collection tests

* added network and server wrappers to VIF model

lib/fog/xenserver/models/compute/vif.rb

@@ -18,18 +18,20 @@ module Fog
         attribute :mac_autogenerated,  :aliases => :MAC_autogenerated
         attribute :metrics
         attribute :mtu,                :aliases => :MTU
-        attribute :network
+        attribute :__network,          :aliases => :network
         attribute :status_code
         attribute :status_detail
-        attribute :vm,                 :aliases => :VM
+        attribute :__vm,               :aliases => :VM
         
-        #ignore_attributes :current_operations, :qos_supported_algorithms, :qos_algorithm_params, :qos_algorithm_type, :other_config,
-        #                  :runtime_properties
-        
-        def initialize(attributes={})
-          @uuid ||= 0
-          super
+
+        def network
+          connection.networks.get __network
         end
+
+        def server
+          connection.servers.get __vm
+        end
+
       end
       
     end

tests/xenserver/models/compute/vif_tests.rb

@@ -0,0 +1,53 @@
+Shindo.tests('Fog::Compute[:xenserver] | VIF model', ['VIF']) do
+
+  vifs = Fog::Compute[:xenserver].vifs
+  vif = vifs.first
+
+  tests('The VIF model should') do
+    tests('have the action') do
+      test('reload') { vif.respond_to? 'reload' }
+    end
+    tests('have attributes') do
+      model_attribute_hash = vif.attributes
+      attributes = [ 
+        :reference,
+        :mac,
+        :uuid,
+        :allowed_operations,
+        :currently_attached,
+        :device,
+        :mac_autogenerated,
+        :metrics,
+        :mtu,
+        :__network,
+        :status_code,
+        :status_detail,
+        :__vm
+      ]
+      tests("The VIF model should respond to") do
+        attributes.each do |attribute|
+          test("#{attribute}") { vif.respond_to? attribute }
+        end
+      end
+      tests("The attributes hash should have key") do
+        attributes.each do |attribute|
+          test("#{attribute}") { model_attribute_hash.has_key? attribute }
+        end
+      end
+    end
+
+    test('be a kind of Fog::Compute::XenServer::VIF') { vif.kind_of? Fog::Compute::XenServer::VIF}
+
+  end
+
+  tests("A real VIF should") do
+    tests("return a valid network") do
+      test("should be a Fog::Compute::XenServer::Network") { vif.network.kind_of? Fog::Compute::XenServer::Network }
+    end
+    tests("return valid VIF") do
+      test("should be a Fog::Compute::XenServer::Server") { vif.server.kind_of? Fog::Compute::XenServer::Server }
+    end
+
+  end
+
+end