--- /dev/null
+use strict;
+use warnings;
+
+use RT::Test tests => undef;
+
+my $root = RT::CurrentUser->new('root');
+my ($ok, $msg) = $root->UserObj->SetLang('en-us');
+ok $ok, $msg;
+
+my $year = (localtime time)[5] + 1900;
+my $date = RT::Date->new( $root );
+$date->SetToNow;
+
+like $date->AsString( Format => 'LocalizedDateTime' ),
+ qr/\Q$year\E/, 'contains full year';
+
+unlike $date->AsString( Format => 'LocalizedDateTime', DateFormat => 'date_format_short' ),
+ qr/\Q$year\E/, 'lacks full year';
+
+eval {
+ $date->AsString( Format => 'LocalizedDateTime', DateFormat => 'bogus::format' );
+};
+ok !$@, "didn't die with bogus DateFormat";
+
+eval {
+ $date->AsString( Format => 'LocalizedDateTime', TimeFormat => 'bogus::format' );
+};
+ok !$@, "didn't die with bogus TimeFormat";
+
+done_testing;