Index: test/unit/auth_source_ldap_test.rb
===================================================================
--- test/unit/auth_source_ldap_test.rb	(リビジョン 20943)
+++ test/unit/auth_source_ldap_test.rb	(作業コピー)
@@ -82,6 +82,18 @@
     assert a.valid?
   end
 
+  def test_get_attr
+    attr = {
+      'firstname' => 'John',
+      'lastname' => 'Smith',
+      'mail' => %w[jsmith@example.com jsmith@example.net]
+    }
+
+    assert_equal '', AuthSourceLdap.get_attr(attr, 'invalid_attr_name')
+    assert_equal 'Smith', AuthSourceLdap.get_attr(attr, 'lastname')
+    assert_equal 'jsmith@example.com', AuthSourceLdap.get_attr(attr, 'mail')
+  end
+
   test 'ldap_mode setter sets tls and verify_peer' do
     a = AuthSourceLdap.new