redmine/test/fixtures/auth_sources.yml

--- 
auth_sources_001: 
  id: 1
  type: AuthSourceLdap
  name: 'LDAP test server'
  host: '<%= $redmine_test_ldap_server %>'
  port: 389
  base_dn: 'OU=Person,DC=redmine,DC=org'
  attr_login: uid
  attr_firstname: givenName
  attr_lastname: sn
  attr_mail: mail
  onthefly_register: false