anchor.diff:    <%= hidden_field_tag(:credential, 'fake-sessionid-webform') %>
     
     <%= hidden_field :attributes, :cn, :value => 'Joe Schmoe' %>
  +  <%= hidden_field :attributes, :display_name, :value => 'Joe Schmoe' %>
     <%= hidden_field :attributes, :email, :value => 'joeschmoe@one.edu.au' %>
     <%= hidden_field :attributes, :shared_token, :value => 'SharedTokenForJoeSchmoe____' %>
     <%= hidden_field :attributes, :entityID, :value => 'https://idp.one.edu.au/idp/shibboleth' %>
  
positive.code:   <%= hidden_field_tag(:credential, 'fake-sessionid-webform') %>
    
    <%= hidden_field :attributes, :cn, :value => 'Fred Bloggs' %>
    <%= hidden_field :attributes, :email, :value => 'fredbloggs@one.edu.au' %>
    <%= hidden_field :attributes, :shared_token, :value => 'SharedTokenForFredBloggs___' %>
    <%= hidden_field :attributes, :entityID, :value => 'https://idp.one.edu.au/idp/shibboleth' %>
  
negative.code:   <%= hidden_field_tag(:credential, 'fake-sessionid-webform') %>
    
    <%= hidden_field :attributes, :cn, :value => 'Max Mustermann' %>
    <%= hidden_field :attributes, :display_name, :value => 'Max Mustermann' %>
    <%= hidden_field :attributes, :email, :value => 'maxmustermann@one.edu.au' %>
    <%= hidden_field :attributes, :shared_token, :value => 'SharedTokenForMaxMustermann' %>
    <%= hidden_field :attributes, :entityID, :value => 'https://idp.one.edu.au/idp/shibboleth' %>
  