Tax: add the delete method, with tests

lib/WebGUI/Shop/Tax.pm

@@ -3,6 +3,7 @@ package WebGUI::Shop::Tax;
 use strict;
 
 use Class::InsideOut qw{ :std };
+use Carp qw(croak);
 
 =head1 NAME
 
@@ -67,6 +68,33 @@ sub add {
 
 #-------------------------------------------------------------------
 
+=head2 delete ( [$params] )
+
+Deletes data from the tax table by taxId.
+
+=head3 $params
+
+A hashref containing the taxId of the data to delete from the table.
+
+=head4 taxId
+
+The taxId of the data to delete from the table.
+
+=cut
+
+sub delete {
+    my $self   = shift;
+    my $params = shift;
+    croak "Must pass in a hashref"
+        unless ref($params) eq 'HASH';
+    croak "Hash ref must contain a taxId key with a defined value"
+        unless exists($params->{taxId}) and defined $params->{taxId};
+    $self->session->db->write('delete from tax where taxId=?', [$params->{taxId}]);
+    return;
+}
+
+#-------------------------------------------------------------------
+
 =head2 getItems ( )
 
 Returns a WebGUI::SQL::Result object for accessing all of the data in the tax table.  This

t/Shop/Tax.t

@@ -28,7 +28,7 @@ my $session         = WebGUI::Test->session;
 #----------------------------------------------------------------------------
 # Tests
 
-my $tests = 11;
+my $tests = 17;
 plan tests => 1 + $tests;
 
 #----------------------------------------------------------------------------
@@ -119,6 +119,35 @@ is($taxIterator->rows, 2, 'add did not add another row since it would be a dupli
 ##city rate: 0.5%
 ##Wisconsin rate 5.0%
 
+#######################################################################
+#
+# delete
+#
+#######################################################################
+
+eval{$taxer->delete()};
+like($@, qr{Must pass in a hashref},
+    'delete: error handling for missing hashref');
+
+eval{$taxer->delete({})};
+like($@, qr{Hash ref must contain a taxId key with a defined value},
+    'delete: error handling for missing key in hashref');
+
+eval{$taxer->delete({ taxId => undef })};
+like($@, qr{Hash ref must contain a taxId key with a defined value},
+    'delete: error handling for an undefined taxId value');
+
+$taxer->delete({ taxId => $oregonTaxId });
+
+$taxIterator = $taxer->getItems;
+is($taxIterator->rows, 1, 'One row was deleted from the tax table');
+
+$taxer->delete({ taxId => $session->id->generate });
+
+$taxIterator = $taxer->getItems;
+is($taxIterator->rows, 1, 'No rows were deleted from the table since the requested id does not exist');
+is($taxIterator->hashRef->{taxId}, $wisconsinTaxId, 'The correct tax information was deleted');
+
 }