Bug 12416: add new tests of DelUniqueDebarment

The subroutine DelUniqueDebarment was not enough tested

To test: execute the command prove t/db_dependent/Borrower_Debarments.t
The command has to print:
t/db_dependent/Borrower_Debarments.t .. ok
All tests successful.
Files=1, Tests=31,  1 wallclock secs ( 0.03 usr  0.01 sys +  1.44 cusr  0.08 csys =  1.56 CPU)
Result: PASS

Signed-off-by: Bernardo Gonzalez Kriegel <bgkriegel@gmail.com>
All 31 test pass, no koha-qa errors

Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
All tests pass.

Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>

t/db_dependent/Borrower_Debarments.t

@@ -5,7 +5,7 @@ use Modern::Perl;
 use C4::Context;
 use C4::Members;
 
-use Test::More tests => 22;
+use Test::More tests => 31;
 
 use_ok('Koha::Borrower::Debarments');
 
@@ -86,10 +86,51 @@ is( @$debarments, 1, "GetDebarments returns 1 OVERDUES debarment after running A
 is( $debarments->[0]->{'expiration'}, '9999-11-09', "AddOverduesDebarment updated OVERDUES debarment correctly" );
 
 
-DelUniqueDebarment({
+my $delUniqueDebarment = DelUniqueDebarment({
+});
+is( $delUniqueDebarment, undef, "DelUniqueDebarment without the arguments 'borrowernumber' and 'type' returns undef" );
+$debarments = GetDebarments({
+    borrowernumber => $borrowernumber,
+    type => 'OVERDUES',
+});
+is( @$debarments, 1, "DelUniqueDebarment without the arguments 'borrowernumber' and 'type' does not delete the debarment" );
+
+$delUniqueDebarment = DelUniqueDebarment({
+    borrowernumber => $borrowernumber,
+});
+is( $delUniqueDebarment, undef, "DelUniqueDebarment without the argument 'type' returns undef" );
+$debarments = GetDebarments({
+    borrowernumber => $borrowernumber,
+    type => 'OVERDUES',
+});
+is( @$debarments, 1, "DelUniqueDebarment without the argument 'type' does not delete the debarment" );
+
+$delUniqueDebarment = DelUniqueDebarment({
+    type => 'OVERDUES'
+});
+is( $delUniqueDebarment, undef, "DelUniqueDebarment without the argument 'borrowernumber' returns undef" );
+$debarments = GetDebarments({
+    borrowernumber => $borrowernumber,
+    type => 'OVERDUES',
+});
+is( @$debarments, 1, "DelUniqueDebarment without the argument 'borrowerumber' does not delete the debarment" );
+
+$delUniqueDebarment = DelUniqueDebarment({
+    borrowernumber => $borrowernumber,
+    type => 'SUSPENSION',
+});
+is( $delUniqueDebarment, undef, "DelUniqueDebarment with wrong arguments returns undef" );
+$debarments = GetDebarments({
+    borrowernumber => $borrowernumber,
+    type => 'OVERDUES',
+});
+is( @$debarments, 1, "DelUniqueDebarment with wrong arguments does not delete the debarment" );
+
+$delUniqueDebarment = DelUniqueDebarment({
     borrowernumber => $borrowernumber,
     type => 'OVERDUES',
 });
+is( $delUniqueDebarment, 1, "DelUniqueDebarment returns 1" );
 $debarments = GetDebarments({
     borrowernumber => $borrowernumber,
     type => 'OVERDUES',