use strict;
use warnings;
use lib 't/lib';

use Std;

{
  check_tests(
    sub {
      cmp_deeply({}, hashkeys(), "0");
      cmp_deeply({1 => 2, 3 => 4, 5 => 6}, hashkeys(1, 3, 5), "3");
    },
    [
      {
        name => "0",
        actual_ok => 1,
        diag => "",
      },
      {
        name => "3",
        actual_ok => 1,
        diag => "",
      }
    ],
    "keys ok"
  );
  check_tests(
    sub {
      cmp_deeply({a => 2, b => 4}, hashkeys("a", "c"));
    },
    [
      {
        actual_ok => 0,
        diag => <<EOM,
Comparing hash keys of \$data
Missing: 'c'
Extra: 'b'
EOM
      },
    ],
    "bad length"
  );
  check_tests(
    sub {
      cmp_deeply("a", hashkeys(1), "string");
      cmp_deeply([], hashkeys(1), "array");
    },
    [
      {
        name => "string",
        actual_ok => 0,
        diag => <<EOM,
Compared reftype(\$data)
   got : undef
expect : 'HASH'
EOM
      },
      {
        name => "array",
        actual_ok => 0,
        diag => <<EOM,
Compared reftype(\$data)
   got : 'ARRAY'
expect : 'HASH'
EOM
      },
    ],
    "not array"
  );
}