added test for create logic to default path to '/'

tests/aws/models/iam/users_tests.rb

@@ -7,7 +7,8 @@
 
   @user_three_name = 'fake_user_three'
   @user_three_path = '/path/to/fake_user_three/'
-
+  @user_four_name = 'fake_user_four'
+
   tests('#create').succeeds do
     @user_one = @iam.users.create(:id => @user_one_name)
     @user_one.id == @user_one_name
@@ -18,6 +19,11 @@
     @user_three.path == @user_three_path
   end
 
+  tests('#create', 'defaults path to /').succeeds do
+    @user_four = @iam.users.create(:id => @user_four_name)
+    @user_four.path == '/'
+  end
+
   tests('#all','there is only one user').succeeds do
     @iam.users.size == 1
   end