+# 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 Test::More;
+use Test::MockModule;
+use Test::Warn;
+
+plan tests => 34;
+
+
+use_ok('C4::Biblio', qw( AddBiblio ModBiblio BiblioAutoLink LinkBibHeadingsToAuthorities GetMarcPrice GetMarcQuantity GetMarcControlnumber GetMarcISBN GetMarcISSN GetMarcSubjects GetMarcUrls GetMarcSeries TransformMarcToKoha ModBiblioMarc RemoveAllNsb UpdateTotalIssues ));
+
+my $db = Test::MockModule->new('Koha::Database');
+$db->mock( _new_schema => sub { return Schema(); } );
+
+my @arr;
+my $ret;
+
+warning_is { @arr = AddBiblio(undef, q{}) }
+ { carped => 'AddBiblio called with undefined record'},
+ "AddBiblio returns carped warning on undef record";
+
+my $elements = @arr;
+
+is($elements, 0, 'Add Biblio returns empty array for undef record');
+
+warning_is { $ret = ModBiblio(undef, 0, '') }
+ { carped => 'No record passed to ModBiblio'},
+ "ModBiblio returns carped warning on undef record";
+
+is( $ret, 0, 'ModBiblio returns zero if not passed rec');
+
+warning_is { $ret = BiblioAutoLink(undef, q{}) }
+ { carped => 'Undefined record passed to BiblioAutoLink'},
+ "BiblioAutoLink returns carped warning on undef record";
+
+is( $ret, 0, 'BiblioAutoLink returns zero if not passed rec');
+
+warning_is { @arr = LinkBibHeadingsToAuthorities(q{}, q{}) }
+ { carped => 'LinkBibHeadingsToAuthorities called on undefined bib record'},
+ "LinkBibHeadingsToAuthorities returns carped warning on undef record";
+
+is($arr[0], 0, 'LinkBibHeadingsToAuthorities correct error return');
+
+warning_is { $ret = GetMarcPrice(undef, 'MARC21') }
+ { carped => 'GetMarcPrice called on undefined record'},
+ "GetMarcPrice returns carped warning on undef record";
+
+ok( !defined $ret, 'GetMarcPrice returns undef if not passed rec');
+
+warning_is { $ret = GetMarcQuantity(undef, 'MARC21') }
+ { carped => 'GetMarcQuantity called on undefined record'},
+ "GetMarcQuantity returns carped warning on undef record";
+
+ok( !defined $ret, 'GetMarcQuantity returns undef if not passed rec');
+
+warning_is { $ret = GetMarcControlnumber() }
+ { carped => 'GetMarcControlnumber called on undefined record'},
+ "GetMarcControlnumber returns carped warning on undef record";
+
+ok( !defined $ret, 'GetMarcControlnumber returns undef if not passed rec');
+
+warning_is { $ret = GetMarcISBN() }
+ { carped => 'GetMarcISBN called on undefined record'},
+ "GetMarcISBN returns carped warning on undef record";
+
+ok( !defined $ret, 'GetMarcISBN returns undef if not passed rec');
+
+warning_is { $ret = GetMarcISSN() }
+ { carped => 'GetMarcISSN called on undefined record'},
+ "GetMarcISSN returns carped warning on undef record";
+
+ok( !defined $ret, 'GetMarcISSN returns undef if not passed rec');
+
+warning_is { $ret = GetMarcSubjects() }
+ { carped => 'GetMarcSubjects called on undefined record'},
+ "GetMarcSubjects returns carped warning on undef record";
+
+ok( !defined $ret, 'GetMarcSubjects returns undef if not passed rec');
+
+warning_is { $ret = GetMarcUrls() }
+ { carped => 'GetMarcUrls called on undefined record'},
+ "GetMarcUrls returns carped warning on undef record";
+
+ok( !defined $ret, 'GetMarcUrls returns undef if not passed rec');
+
+warning_is { $ret = GetMarcSeries() }
+ { carped => 'GetMarcSeries called on undefined record'},
+ "GetMarcSeries returns carped warning on undef record";
+
+ok( !defined $ret, 'GetMarcSeries returns undef if not passed rec');
+
+my $hash_ref;
+
+warning_is { $hash_ref = TransformMarcToKoha( undef) }
+ { carped => 'TransformMarcToKoha called with undefined record'},
+ "TransformMarcToKoha returns carped warning on undef record";
+
+isa_ok( $hash_ref, 'HASH');
+
+$elements = keys %{$hash_ref};
+
+is($elements, 0, 'Empty hashref returned for undefined record in TransformMarcToKoha');
+
+warning_is { $ret = ModBiblioMarc() }
+ { carped => 'ModBiblioMarc passed an undefined record'},
+ "ModBiblioMarc returns carped warning on undef record";
+
+ok( !defined $ret, 'ModBiblioMarc returns undef if not passed rec');
+
+warning_is { $ret = RemoveAllNsb() }
+ { carped => 'RemoveAllNsb called with undefined record'},
+ "RemoveAllNsb returns carped warning on undef record";