[xenserver|tests] added HostCpu model tests

tests/xenserver/models/compute/host_cpu_tests.rb

@@ -0,0 +1,58 @@
+Shindo.tests('Fog::Compute[:xenserver] | HostCpu model', ['xenserver']) do
+
+  host = Fog::Compute[:xenserver].hosts.first
+  host_cpu = host.host_cpus.first
+
+  tests('The HostCpu model should') do
+    tests('have attributes') do
+      model_attribute_hash = host_cpu.attributes
+      attributes = [ 
+        :reference,
+        :uuid,
+        :family,
+        :flags,
+        :__host,
+        :model_name,
+        :model,
+        :number,
+        :other_config,
+        :speed,
+        :stepping,
+        :utilisation,
+        :vendor
+      ]
+      tests("The HostCpu model should respond to") do
+        attributes.each do |attribute|
+          test("#{attribute}") { host_cpu.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::HostCpu') do
+      host_cpu.kind_of? Fog::Compute::XenServer::HostCpu
+    end
+
+    test("return a valid host") do
+      host_cpu.host.kind_of? Fog::Compute::XenServer::Host
+    end
+    
+    test("have a valid vendor string") do
+      host_cpu.vendor.kind_of? String
+    end
+    
+    test("have a valid other_config") do
+      host_cpu.other_config.kind_of? Hash
+    end
+    
+    test("have a valid utilisation attribute") do
+      host_cpu.utilisation.kind_of? Float
+    end
+
+  end
+
+end