Documentation for sub isa-ok assembled from the following types:

module Test

From Test

(Test) sub isa-ok

Defined as:

multi sub isa-ok(Mu $var, Mu $type, $desc = "The object is-a '$type.perl()'")

Marks a test as passed if the given object $value is, or inherits from, the given $expected-type. For convenience, types may also be specified as a string. The function accepts an optional description of the test, which defaults to a string that describes the object.

    class Womble {}
    class GreatUncleBulgaria is Womble {}
    my $womble = GreatUncleBulgaria.new;
 
    isa-ok $womble, Womble, "Great Uncle Bulgaria is a womble";
    isa-ok $womble, 'Womble';     # equivalent