Running FactoryGirl.lint on the factories in Foreman reveals that a number of them are broken:

/home/dadavis/.rvm/gems/ruby-2.0.0-p643@foreman/gems/factory_girl-4.5.0/lib/factory_girl/linter.rb:14:in `lint!': The following factories are invalid: (FactoryGirl::InvalidFactoryError)

* free_ipa_auth_source - uninitialized constant FreeIpaAuthSource (NameError)
* active_directory_auth_source - uninitialized constant ActiveDirectoryAuthSource (NameError)
* posix_auth_source - uninitialized constant PosixAuthSource (NameError)
* bookmark - Validation failed: Controller can't be blank, Controller  is not a valid controller (ActiveRecord::RecordInvalid)
* compute_resource - Validation failed: Provider can't be blank, Provider is not included in the list (ActiveRecord::RecordInvalid)
* image - Validation failed: Provider can't be blank, Provider is not included in the list (ActiveRecord::RecordInvalid)
* feature - Validation failed: Name can't be blank (ActiveRecord::RecordInvalid)
* parameter - Validation failed: Reference parameters require an associated domain, operating system, host or host group (ActiveRecord::RecordInvalid)
* host_parameter - Validation failed: Reference parameters require an associated domain, operating system, host or host group (ActiveRecord::RecordInvalid)
* hostgroup_parameter - Validation failed: Reference parameters require an associated domain, operating system, host or host group (ActiveRecord::RecordInvalid)
* nic_base - Validation failed: Host can't be blank (ActiveRecord::RecordInvalid)
* nic_interface - Validation failed: Host can't be blank (ActiveRecord::RecordInvalid)
* nic_managed - Validation failed: Host can't be blank (ActiveRecord::RecordInvalid)
* nic_bmc - Validation failed: Host can't be blank (ActiveRecord::RecordInvalid)
* nic_bond - Validation failed: Host can't be blank (ActiveRecord::RecordInvalid)
* nic_primary_and_provision - undefined method `read_attribute' for nil:NilClass (NoMethodError)
* environment_class - Validation failed: Puppetclass can't be blank, Environment can't be blank (ActiveRecord::RecordInvalid)
* lookup_key - Validation failed: Puppetclass can't be blank (ActiveRecord::RecordInvalid)
* lookup_value - undefined method `key_type' for nil:NilClass (NoMethodError)
* trends - undefined method `new' for Trends:Module (NoMethodError)
* foreman_trends - undefined method `constantize' for nil:NilClass (NoMethodError)
* trend_counter - Validation failed: Count is not a number (ActiveRecord::RecordInvalid)
* external_usergroup - No such address or other socket error. (Net::LDAP::Error)
* user_role - Validation failed: Owner can't be blank (ActiveRecord::RecordInvalid)
* usergroup_member - Unknown member type  (ArgumentError)
* container_resource - Validation failed: Provider can't be blank, Provider is not included in the list, Url can't be blank (ActiveRecord::RecordInvalid)

I also recommend adding the FactoryGirl.lint to the test suite as it can verify factories in a matter of seconds.