not ok 1 - The object isa Foo # Failed test (dumperIntro.pl at line 14) # The object isn't defined not ok 2 - The object isa Foo # Failed test (dumperIntro.pl at line 17) # The object isn't a reference ok 3 - The object isa Foo $VAR1 = bless( { 'a' => 1 }, 'Foo' ); 1..3 # Looks like you failed 2 tests of 3.