ok( (my $instance = MyClass->new), 'instance' );
eval { $instance->foo('bar') };
-ok( (!$@), 'attribute coercion ran' );
+is $@, "", 'attribute coercion ran';
eval { $instance->bar('baz') };
-ok( (!$@), 'class attribute coercion ran' );
+is $@, "", 'class attribute coercion ran';
eval { $instance->baz('quux') };
ok( $@, 'class attribute coercion did not run with coerce => 0' );