--- /dev/null
+use strict;
+use warnings;
+use RT;
+use RT::Test nodb => 1, tests => 11;
+use Test::Warn;
+
+ok(
+ RT::Config->AddOption(
+ Name => 'foo',
+ Section => 'bar',
+ ),
+ 'added option foo'
+);
+
+my $meta = RT::Config->Meta('foo');
+is( $meta->{Section}, 'bar', 'Section is bar' );
+is( $meta->{Widget}, '/Widgets/Form/String', 'default Widget is string' );
+is_deeply( $meta->{WidgetArguments},
+ {},, 'default WidgetArguments is empty hashref' );
+
+ok(
+ RT::Config->UpdateOption(
+ Name => 'foo',
+ Section => 'baz',
+ Widget => '/Widgets/Form/Boolean',
+ ),
+ 'updated option foo to section baz'
+);
+is( $meta->{Section}, 'baz', 'section is updated to baz' );
+is( $meta->{Widget}, '/Widgets/Form/Boolean', 'widget is updated to boolean' );
+
+ok( RT::Config->DeleteOption( Name => 'foo' ), 'removed option foo' );
+is( RT::Config->Meta('foo'), undef, 'foo is indeed deleted' );
+
+# Test EmailInputEncodings PostLoadCheck code
+RT::Config->Set('EmailInputEncodings', qw(utf-8 iso-8859-1 us-ascii foo));
+my @encodings = qw(utf-8-strict iso-8859-1 ascii);
+
+warning_is {RT::Config->PostLoadCheck} "Unknown encoding 'foo' in \@EmailInputEncodings option",
+ 'Correct warning for encoding foo';
+
+my @canonical_encodings = RT::Config->Get('EmailInputEncodings');
+is_deeply(\@encodings, \@canonical_encodings, 'Got correct encoding list');