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

use Std;
my $xism = qr/x/=~/\(\?\^/ ? "^" : "-xism";
{
  my $str = "ferg";
  my $re = qr/$str/;
  check_test(
    sub {
      cmp_deeply("fergal", re($re));
    },
    {
      actual_ok => 1,
      diag => "",
    },
    "re eq"
  );

  check_test(
    sub {
      cmp_deeply("fergal", regexponly($re));
    },
    {
      actual_ok => 1,
      diag => "",
    },
    "regexponly eq"
  );

  check_test(
    sub {
      cmp_deeply("feargal", re($re));
    },
    {
      actual_ok => 0,
      diag => <<EOM,
Using Regexp on \$data
   got : 'feargal'
expect : $re
EOM
    },
    "re not eq"
  );

  check_test(
    sub {
      cmp_deeply("feargal", regexponly($re));
    },
    {
      actual_ok => 0,
      diag => <<EOM,
Using Regexp on \$data
   got : 'feargal'
expect : $re
EOM
    },
    "regexponly not eq"
  );


  check_test(
    sub {
      cmp_deeply("fergal", re($str));
    },
    {
      actual_ok => 1,
      diag => "",
    },
    "string re eq"
  );

  check_test(
    sub {
      cmp_deeply("feargal", re($str));
    },
    {
      actual_ok => 0,
      diag => <<EOM,
Using Regexp on \$data
   got : 'feargal'
expect : $re
EOM
    },
    "string runre not eq"
  );
}
{
  my $re = qr/([ac])/;
  check_test(
    sub {
      cmp_deeply("abc", re($re, [qw( a )]));
    },
    {
      actual_ok => 1,
      diag => "",
    },
    "matches re eq"
  );

  check_test(
    sub {
      cmp_deeply("abc", re($re, [qw( a c )], "g"));
    },
    {
      actual_ok => 1,
      diag => "",
    },
    "matches global re eq"
  );

  check_test(
    sub {
      cmp_deeply("abc", re($re, [qw( a b )], "g"));
    },
    {
      actual_ok => 0,
      diag => <<EOM,
Compared [\$data =~ (?$xism:([ac]))]->[1]
   got : 'c'
expect : 'b'
EOM
    },
    "matches global not eq"
  );

}

{
  my $re = qr/(..)/;
  check_test(
    sub {
      cmp_deeply("abababcdcdefef", re($re, set(qw( ab cd ef )), "g"));
    },
    {
      actual_ok => 1,
      diag => "",
    },
    "matches re and set eq"
  );

  check_test(
    sub {
      cmp_deeply("cat=2,dog=67,sheep=3,goat=2,dog=5",
          re(qr/(\D+)=\d+,?/, set(qw( cat sheep dog )), "g"))
    },
    {
      actual_ok => 0,
      diag => <<EOM,
Comparing [\$data =~ (?$xism:(\\D+)=\\d+,?)] as a Set
Extra: 'goat'
EOM
    },
    "string runre not eq"
  );

}

{
  require Over;
  my $o = Over->new("hi mom");

  is("$o", "hi mom", "we make a stringifiable object");

  check_test(
    sub { cmp_deeply($o, re(qr/mom/)); },
    { actual_ok => 1 },
    "re() tests objects via overloading",
  );

  # Remember, Regexp stringification changes over time. -- rjbs, 2016-09-08
  my $re     = qr/dad/;
  my $re_str = "$re";
  check_test(
    sub { cmp_deeply($o, re($re)); },
    {
      actual_ok => 0,
      diag => <<EOM,
Using Regexp on \$data
   got : 'hi mom' (instance of Over)
expect : $re_str
EOM
    },
    "re() tests objects via overloading",
  );
}