Use check_set to check a value is as expected and its type is also as expected

check-value-against-set-of-outcomes.t

BEGIN {

    package MyTypes;

    use Type::Library -extends => ['Types::Standard'], -declare => qw< Error >;
    use Type::Utils -all;

    declare Error, as Dict [ error => Str ];

    __PACKAGE__->meta->make_immutable();
}

use Test2::V0;
use Test::TypeTiny;

use MyTypes -types;

is( { error => 'some error' },
    check_set(
        { error => 'some error' },                      # check against an exact value
        hash { field error => 'some error'; etc() },    # check against a hash builder
        validator( sub { Error->check($_) } ),          # check against predefined type
    ),
    'should pass all expectations',
);

done_testing();