1 files changed, 102 insertions, 0 deletions
diff --git a/t/release-pp-26-isa.t b/t/release-pp-26-isa.t
new file mode 100644
index 0000000..f95fdd5
--- /dev/null
+++ b/t/release-pp-26-isa.t
@@ -0,0 +1,102 @@
+
+
+use Test::More;
+
+BEGIN {
+    unless ( $ENV{RELEASE_TESTING} ) {
+        plan skip_all => 'these tests are for release testing';
+    }
+
+    $ENV{PV_TEST_PERL} = 1;
+}
+
+use strict;
+use warnings;
+
+use Params::Validate qw(validate);
+use Test::More;
+
+{
+    my @p = ( foo => 'ClassISA' );
+
+    eval { validate( @p, { foo => { isa => 'FooBar' } }, ); };
+
+    is( $@, q{}, 'no error checking if ClassISA->isa(FooBar)' );
+
+    eval { validate( @p, { foo => { isa => 'Thingy' } }, ); };
+
+    like( $@, qr/was not a 'Thingy'/ );
+}
+
+{
+    my @p = ( foo => undef );
+    eval { validate( @p, { foo => { isa => 'FooBar' } }, ); };
+
+    like( $@, qr/was not a 'FooBar'/ );
+}
+
+{
+    my @p = ( foo => 'SubClass' );
+
+    eval { validate( @p, { foo => { isa => 'ClassISA' } }, ); };
+
+    is( $@, q{}, 'SubClass->isa(ClassISA)' );
+
+    eval { validate( @p, { foo => { isa => 'FooBar' } }, ); };
+
+    is( $@, q{}, 'SubClass->isa(FooBar)' );
+
+    eval { validate( @p, { foo => { isa => 'Thingy' } }, ); };
+
+    like( $@, qr/was not a 'Thingy'/ );
+}
+
+{
+    my @p = ( foo => bless {}, 'SubClass' );
+
+    eval { validate( @p, { foo => { isa => 'ClassISA' } }, ); };
+
+    is( $@, q{}, 'SubClass->isa(ClassISA)' );
+
+    eval { validate( @p, { foo => { isa => 'FooBar' } }, ); };
+
+    is( $@, q{}, 'SubClass->isa(FooBar)' );
+
+    eval { validate( @p, { foo => { isa => 'Thingy' } }, ); };
+
+    like( $@, qr/was not a 'Thingy'/ );
+}
+
+{
+    my @p = ( foo => {} );
+    eval { validate( @p, { foo => { isa => 'Thingy' } }, ); };
+    like( $@, qr/was not a 'Thingy'/, 'unblessed ref ->isa' );
+
+    @p = ( foo => 27 );
+    eval { validate( @p, { foo => { isa => 'Thingy' } }, ); };
+    like( $@, qr/was not a 'Thingy'/, 'number isa' );
+
+    @p = ( foo => 'A String' );
+    eval { validate( @p, { foo => { isa => 'Thingy' } }, ); };
+    like( $@, qr/was not a 'Thingy'/, 'string isa' );
+
+    @p = ( foo => undef );
+    eval { validate( @p, { foo => { isa => 'Thingy' } }, ); };
+    like( $@, qr/was not a 'Thingy'/, 'undef isa' );
+}
+
+done_testing();
+
+package ClassISA;
+
+sub isa {
+    return 1 if $_[1] eq 'FooBar';
+    return $_[0]->SUPER::isa( $_[1] );
+}
+
+sub thingy {1}
+
+package SubClass;
+
+use base 'ClassISA';
+