h2. Defect Description

In the current version and the last trunk, the Authenticacion Modes that works through LDAP does not check the username or password.

This can be a problem, because, if the LDAP Server is available but does not return any response due to an incorrect username and password, and can't bind the connection.

This patch adds the possibility in the moment to do a LDAP connection Test, if the username and password is defined it binds to check that are correct, else returns an exception with it's error.

I've added the follow test to check the username and the password, as the connectivity against the LDAP Server.

This patch has been tested with the last Trunk (14992) and the configurations of the LDAP Server that comes included to do the tests.

h2. Running Tests:

vagrant@redmine:/opt/redmine/trunk# RAILS_ENV="test" rake test test/unit/auth_source_ldap_test.rb
Run options: --seed 12217

# Running:

.......................

Finished in 3.987555s, 5.7679 runs/s, 20.0624 assertions/s.

23 runs, 80 assertions, 0 failures, 0 errors, 0 skips
vagrant@redmine:/opt/redmine/trunk#

h2. Attached Screenshots:

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