diff --git a/t/External/OverDrive.t b/t/External/OverDrive.t
new file mode 100755
index 0000000000..b6134fad56
--- /dev/null
+++ b/t/External/OverDrive.t
@@ -0,0 +1,55 @@
+#!/usr/bin/perl
+
+# Copyright 2015 BibLibre
+#
+# This file is part of Koha.
+#
+# Koha is free software; you can redistribute it and/or modify it under the
+# terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 3 of the License, or (at your option) any later
+# version.
+#
+# Koha is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with Koha; if not, see <http://www.gnu.org/licenses>.
+
+use Modern::Perl;
+use C4::Context;
+use t::lib::Mocks qw(mock_preference);
+use Test::More tests => 6;
+
+BEGIN {
+    use_ok('C4::External::OverDrive');
+}
+
+can_ok(
+    'C4::External::OverDrive', qw(
+      _request
+      IsOverDriveEnabled
+      GetOverDriveToken )
+);
+
+# ---------- Testing IsOverDriveEnabled ---------
+
+t::lib::Mocks::mock_preference( "OverDriveClientKey",    0 );
+t::lib::Mocks::mock_preference( "OverDriveClientSecret", 0 );
+
+is( IsOverDriveEnabled(), 0, 'IsOverDriveEnabled fail' );
+
+t::lib::Mocks::mock_preference( "OverDriveClientKey",    0 );
+t::lib::Mocks::mock_preference( "OverDriveClientSecret", 1 );
+
+is( IsOverDriveEnabled(), 0, 'IsOverDriveEnabled fail' );
+
+t::lib::Mocks::mock_preference( "OverDriveClientKey",    1 );
+t::lib::Mocks::mock_preference( "OverDriveClientSecret", 0 );
+
+is( IsOverDriveEnabled(), 0, 'IsOverDriveEnabled fail' );
+
+t::lib::Mocks::mock_preference( "OverDriveClientKey",    1 );
+t::lib::Mocks::mock_preference( "OverDriveClientSecret", 1 );
+
+is( IsOverDriveEnabled(), 1, 'IsOverDriveEnabled success' );
diff --git a/t/External_Overdrive.t b/t/External_Overdrive.t
deleted file mode 100755
index a6598466f4..0000000000
--- a/t/External_Overdrive.t
+++ /dev/null
@@ -1,13 +0,0 @@
-#!/usr/bin/perl
-#
-# This Koha test module is a stub!
-# Add more tests here!!!
-
-use strict;
-use warnings;
-
-use Test::More tests => 1;
-
-BEGIN {
-        use_ok('C4::External::OverDrive');
-}