use 5.020; use Test::More; use DateTime; package MyApp::Util { # in MyApp::Util sub convert_datetime { my ( $self, $incoming_datetime ) = @_; my $new_dt; eval { $new_dt = DateTime::Format::ISO8601->parse_datetime( $incoming_datetime ); }; return undef if $@; # No error, now we can convert the date (not shown) return $new_dt; } } my $bogus_datetime = MyApp::Util->convert_datetime("FOO"); is ($bogus_datetime, undef, "convert_datetime doesn't blow up if sent bogus date"); done_testing;