Bug 13601: t/Letters.t needs to mock the dateformat pref

Test passes OK.
Signed-off-by: Marc Véron <veron@veron.ch>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>

diff --git a/t/Letters.t b/t/Letters.t
index 18ae129..4a088da 100755 (executable)
--- a/t/Letters.t
+++ b/t/Letters.t
@@ -42,6 +42,8 @@ my $dbh = C4::Context->dbh();
 
 $dbh->{mock_add_resultset} = $mock_letters;
 
+t::lib::Mocks::mock_preference('dateformat', 'metric');
+
 my $letters = C4::Letters::GetLetters();
 
 my ( $ISBN_letter ) = grep {$_->{code} eq 'ISBN'} @$letters;