Tweak for aws resources to determine if they're still under test.

Everyone now has an `inspec` method, but the AWS ones still return
nil as their backend hasn't been set up.

This seems wrong...

Signed-off-by: Ryan Davis <zenspider@chef.io>

lib/resource_support/aws/aws_resource_mixin.rb

@@ -10,7 +10,7 @@ module AwsResourceMixin
     end
   rescue ArgumentError => e
     # continue with ArgumentError if testing
-    raise unless respond_to?(:inspec)
+    raise unless respond_to?(:inspec) && inspec
 
     raise Inspec::Exceptions::ResourceFailed, e.message
   end

test/unit/resource_supports/aws/aws_resource_mixin_test.rb

@@ -28,9 +28,9 @@ describe "AwsResourceMixin" do
         raise ArgumentError, "this param is not right"
       end
 
-      # if inspec is defined we are a live test
+      # if inspec is defined and returns true we are a live test
       def inspec
-        # live
+        true
       end
     end
 

test/unit/resources/aws_iam_user_test.rb

@@ -5,7 +5,7 @@ require "resources/aws/aws_iam_user"
 require "resource_support/aws"
 require "resources/aws/aws_iam_user"
 
-# MAUIB = MockAwsIamUserBackend
+# MAIUB = MockAwsIamUserBackend
 # Abbreviation not used outside this file
 
 #=============================================================================#