[p5sagit/p5-mst-13.2.git] / ext / XS / APItest / t / hash.t

#!perl -w

BEGIN {
  chdir 't' if -d 't';
  @INC = '../lib';
  push @INC, "::lib:$MacPerl::Architecture:" if $^O eq 'MacOS';
  require Config; import Config;
  if ($Config{'extensions'} !~ /\bXS\/APItest\b/) {
    # Look, I'm using this fully-qualified variable more than once!
    my $arch = $MacPerl::Architecture;
    print "1..0 # Skip: XS::APItest was not built\n";
    exit 0;
  }
}

use strict;
use utf8;
use Tie::Hash;
use Test::More 'no_plan';

BEGIN {use_ok('XS::APItest')};

sub preform_test;
sub test_present;
sub test_absent;
sub test_delete_present;
sub test_delete_absent;
sub brute_force_exists;
sub test_store;
sub test_fetch_present;
sub test_fetch_absent;

my $utf8_for_258 = chr 258;
utf8::encode $utf8_for_258;

my @testkeys = ('N', chr 198, chr 256);
my @keys = (@testkeys, $utf8_for_258);

foreach (@keys) {
  utf8::downgrade $_, 1;
}
main_tests (\@keys, \@testkeys, '');

foreach (@keys) {
  utf8::upgrade $_;
}
main_tests (\@keys, \@testkeys, ' [utf8 hash]');

{
  my %h = (a=>'cheat');
  tie %h, 'Tie::StdHash';
  # is bug 36327 fixed?
  my $result = ($] > 5.009) ? undef : 1;

  is (XS::APItest::Hash::store(\%h, chr 258,  1), $result);
    
  ok (!exists $h{$utf8_for_258},
      "hv_store doesn't insert a key with the raw utf8 on a tied hash");
}

if ($] > 5.009) {
    my $strtab = strtab();
    is (ref $strtab, 'HASH', "The shared string table quacks like a hash");
    my $wibble = "\0";
    eval {
	$strtab->{$wibble}++;
    };
    my $prefix = "Cannot modify shared string table in hv_";
    my $what = $prefix . 'fetch';
    like ($@, qr/^$what/,$what);
    eval {
	XS::APItest::Hash::store($strtab, 'Boom!',  1)
    };
    $what = $prefix . 'store';
    like ($@, qr/^$what/, $what);
    if (0) {
	A::B->method();
    }
    # DESTROY should be in there.
    eval {
	delete $strtab->{DESTROY};
    };
    $what = $prefix . 'delete';
    like ($@, qr/^$what/, $what);
    # I can't work out how to get to the code that flips the wasutf8 flag on
    # the hash key without some ikcy XS
}

{
    is_deeply([&XS::APItest::Hash::test_hv_free_ent], [2,2,1,1],
	      "hv_free_ent frees the value immediately");
    is_deeply([&XS::APItest::Hash::test_hv_delayfree_ent], [2,2,2,1],
	      "hv_delayfree_ent keeps the value around until FREETMPS");
}

foreach my $in ("", "N", "a\0b") {
    my $got = XS::APItest::Hash::test_share_unshare_pvn($in);
    is ($got, $in, "test_share_unshare_pvn");
}

if ($] > 5.009) {
    foreach ([\&XS::APItest::Hash::rot13_hash, \&rot13, "rot 13"],
	     [\&XS::APItest::Hash::bitflip_hash, \&bitflip, "bitflip"],
	    ) {
	my ($setup, $mapping, $name) = @$_;
	my %hash;
	my %placebo = (a => 1, p => 2, i => 4, e => 8);
	$setup->(\%hash);
	$hash{a}++; @hash{qw(p i e)} = (2, 4, 8);

	test_U_hash(\%hash, \%placebo, [f => 9, g => 10, h => 11], $mapping,
		    $name);
    }
    foreach my $upgrade_o (0, 1) {
	foreach my $upgrade_n (0, 1) {
	    my (%hash, %placebo);
	    XS::APItest::Hash::bitflip_hash(\%hash);
	    foreach my $new (["7", 65, 67, 80],
			     ["8", 163, 171, 215],
			     ["U", 2603, 2604, 2604],
			    ) {
		foreach my $code (78, 240, 256, 1336) {
		    my $key = chr $code;
		    # This is the UTF-8 byte sequence for the key.
		    my $key_utf8 = $key;
		    utf8::encode($key_utf8);
		    if ($upgrade_o) {
			$key .= chr 256;
			chop $key;
		    }
		    $hash{$key} = $placebo{$key} = $code;
		    $hash{$key_utf8} = $placebo{$key_utf8} = "$code as UTF-8";
		}
		my $name = 'bitflip ' . shift @$new;
		my @new_kv;
		foreach my $code (@$new) {
		    my $key = chr $code;
		    if ($upgrade_n) {
			$key .= chr 256;
			chop $key;
		    }
		    push @new_kv, $key, $_;
		}

		$name .= ' upgraded(orig) ' if $upgrade_o;
		$name .= ' upgraded(new) ' if $upgrade_n;
		test_U_hash(\%hash, \%placebo, \@new_kv, \&bitflip, $name);
	    }
	}
    }
}

{
    my $as_utf8 = "\241" . chr 256;
    chop $as_utf8;
    my $as_bytes = "\243";
    foreach my $key ('N', $as_bytes, $as_utf8, "\x{2623}") {
	my $ord = ord $key;
	foreach my $hash_it (0, 1) {
	    foreach my $what (qw(pv sv)) {
		my %hash;
		is (XS::APItest::Hash::common({hv => \%hash,
					       "key$what" => $key,
					       val => $ord,
					       "hash_$what" => $hash_it,
					       action =>
					       XS::APItest::HV_FETCH_ISSTORE}),
		    $ord, "store $ord with $what \$hash_it = $hash_it");
		is_deeply ([each %hash], [$key, $ord],
			   "First key read is good");
		is_deeply ([each %hash], [], "No second key good");

		is ($hash{$key}, $ord, "Direct hash read finds $ord");
	    }
	}
    }
}

exit;

################################   The End   ################################

sub test_U_hash {
    my ($hash, $placebo, $new, $mapping, $message) = @_;
    my @hitlist = keys %$placebo;
    print "# $message\n";

    my @keys = sort keys %$hash;
    is ("@keys", join(' ', sort($mapping->(keys %$placebo))),
	"uvar magic called exactly once on store");

    is (keys %$hash, keys %$placebo);

    my $victim = shift @hitlist;
    is (delete $hash->{$victim}, delete $placebo->{$victim});

    is (keys %$hash, keys %$placebo);
    @keys = sort keys %$hash;
    is ("@keys", join(' ', sort($mapping->(keys %$placebo))));

    $victim = shift @hitlist;
    is (XS::APItest::Hash::delete_ent ($hash, $victim,
				       XS::APItest::HV_DISABLE_UVAR_XKEY),
	undef, "Deleting a known key with conversion disabled fails (ent)");
    is (keys %$hash, keys %$placebo);

    is (XS::APItest::Hash::delete_ent ($hash, $victim, 0),
	delete $placebo->{$victim},
	"Deleting a known key with conversion enabled works (ent)");
    is (keys %$hash, keys %$placebo);
    @keys = sort keys %$hash;
    is ("@keys", join(' ', sort($mapping->(keys %$placebo))));

    $victim = shift @hitlist;
    is (XS::APItest::Hash::delete ($hash, $victim,
				   XS::APItest::HV_DISABLE_UVAR_XKEY),
	undef, "Deleting a known key with conversion disabled fails");
    is (keys %$hash, keys %$placebo);

    is (XS::APItest::Hash::delete ($hash, $victim, 0),
	delete $placebo->{$victim},
	"Deleting a known key with conversion enabled works");
    is (keys %$hash, keys %$placebo);
    @keys = sort keys %$hash;
    is ("@keys", join(' ', sort($mapping->(keys %$placebo))));

    my ($k, $v) = splice @$new, 0, 2;
    $hash->{$k} = $v;
    $placebo->{$k} = $v;
    is (keys %$hash, keys %$placebo);
    @keys = sort keys %$hash;
    is ("@keys", join(' ', sort($mapping->(keys %$placebo))));

    ($k, $v) = splice @$new, 0, 2;
    is (XS::APItest::Hash::store_ent($hash, $k, $v), $v, "store_ent");
    $placebo->{$k} = $v;
    is (keys %$hash, keys %$placebo);
    @keys = sort keys %$hash;
    is ("@keys", join(' ', sort($mapping->(keys %$placebo))));

    ($k, $v) = splice @$new, 0, 2;
    is (XS::APItest::Hash::store($hash, $k, $v), $v, "store");
    $placebo->{$k} = $v;
    is (keys %$hash, keys %$placebo);
    @keys = sort keys %$hash;
    is ("@keys", join(' ', sort($mapping->(keys %$placebo))));

    @hitlist = keys %$placebo;
    $victim = shift @hitlist;
    is (XS::APItest::Hash::fetch_ent($hash, $victim), $placebo->{$victim},
	"fetch_ent");
    is (XS::APItest::Hash::fetch_ent($hash, $mapping->($victim)), undef,
	"fetch_ent (missing)");

    $victim = shift @hitlist;
    is (XS::APItest::Hash::fetch($hash, $victim), $placebo->{$victim},
	"fetch");
    is (XS::APItest::Hash::fetch($hash, $mapping->($victim)), undef,
	"fetch (missing)");

    $victim = shift @hitlist;
    ok (XS::APItest::Hash::exists_ent($hash, $victim), "exists_ent");
    ok (!XS::APItest::Hash::exists_ent($hash, $mapping->($victim)),
	"exists_ent (missing)");

    $victim = shift @hitlist;
    die "Need a victim" unless defined $victim;
    ok (XS::APItest::Hash::exists($hash, $victim), "exists");
    ok (!XS::APItest::Hash::exists($hash, $mapping->($victim)),
	"exists (missing)");

    is (XS::APItest::Hash::common({hv => $hash, keysv => $victim}),
	$placebo->{$victim}, "common (fetch)");
    is (XS::APItest::Hash::common({hv => $hash, keypv => $victim}),
	$placebo->{$victim}, "common (fetch pv)");
    is (XS::APItest::Hash::common({hv => $hash, keysv => $victim,
				   action => XS::APItest::HV_DISABLE_UVAR_XKEY}),
	undef, "common (fetch) missing");
    is (XS::APItest::Hash::common({hv => $hash, keypv => $victim,
				   action => XS::APItest::HV_DISABLE_UVAR_XKEY}),
	undef, "common (fetch pv) missing");
    is (XS::APItest::Hash::common({hv => $hash, keysv => $mapping->($victim),
				   action => XS::APItest::HV_DISABLE_UVAR_XKEY}),
	$placebo->{$victim}, "common (fetch) missing mapped");
    is (XS::APItest::Hash::common({hv => $hash, keypv => $mapping->($victim),
				   action => XS::APItest::HV_DISABLE_UVAR_XKEY}),
	$placebo->{$victim}, "common (fetch pv) missing mapped");
}

sub main_tests {
  my ($keys, $testkeys, $description) = @_;
  foreach my $key (@$testkeys) {
    my $lckey = ($key eq chr 198) ? chr 230 : lc $key;
    my $unikey = $key;
    utf8::encode $unikey;

    utf8::downgrade $key, 1;
    utf8::downgrade $lckey, 1;
    utf8::downgrade $unikey, 1;
    main_test_inner ($key, $lckey, $unikey, $keys, $description);

    utf8::upgrade $key;
    utf8::upgrade $lckey;
    utf8::upgrade $unikey;
    main_test_inner ($key, $lckey, $unikey, $keys,
		     $description . ' [key utf8 on]');
  }

  # hv_exists was buggy for tied hashes, in that the raw utf8 key was being
  # used - the utf8 flag was being lost.
  perform_test (\&test_absent, (chr 258), $keys, '');

  perform_test (\&test_fetch_absent, (chr 258), $keys, '');
  perform_test (\&test_delete_absent, (chr 258), $keys, '');
}

sub main_test_inner {
  my ($key, $lckey, $unikey, $keys, $description) = @_;
  perform_test (\&test_present, $key, $keys, $description);
  perform_test (\&test_fetch_present, $key, $keys, $description);
  perform_test (\&test_delete_present, $key, $keys, $description);

  perform_test (\&test_store, $key, $keys, $description, [a=>'cheat']);
  perform_test (\&test_store, $key, $keys, $description, []);

  perform_test (\&test_absent, $lckey, $keys, $description);
  perform_test (\&test_fetch_absent, $lckey, $keys, $description);
  perform_test (\&test_delete_absent, $lckey, $keys, $description);

  return if $unikey eq $key;

  perform_test (\&test_absent, $unikey, $keys, $description);
  perform_test (\&test_fetch_absent, $unikey, $keys, $description);
  perform_test (\&test_delete_absent, $unikey, $keys, $description);
}

sub perform_test {
  my ($test_sub, $key, $keys, $message, @other) = @_;
  my $printable = join ',', map {ord} split //, $key;

  my (%hash, %tiehash);
  tie %tiehash, 'Tie::StdHash';

  @hash{@$keys} = @$keys;
  @tiehash{@$keys} = @$keys;

  &$test_sub (\%hash, $key, $printable, $message, @other);
  &$test_sub (\%tiehash, $key, $printable, "$message tie", @other);
}

sub test_present {
  my ($hash, $key, $printable, $message) = @_;

  ok (exists $hash->{$key}, "hv_exists_ent present$message $printable");
  ok (XS::APItest::Hash::exists ($hash, $key),
      "hv_exists present$message $printable");
}

sub test_absent {
  my ($hash, $key, $printable, $message) = @_;

  ok (!exists $hash->{$key}, "hv_exists_ent absent$message $printable");
  ok (!XS::APItest::Hash::exists ($hash, $key),
      "hv_exists absent$message $printable");
}

sub test_delete_present {
  my ($hash, $key, $printable, $message) = @_;

  my $copy = {};
  my $class = tied %$hash;
  if (defined $class) {
    tie %$copy, ref $class;
  }
  $copy = {%$hash};
  ok (brute_force_exists ($copy, $key),
      "hv_delete_ent present$message $printable");
  is (delete $copy->{$key}, $key, "hv_delete_ent present$message $printable");
  ok (!brute_force_exists ($copy, $key),
      "hv_delete_ent present$message $printable");
  $copy = {%$hash};
  ok (brute_force_exists ($copy, $key),
      "hv_delete present$message $printable");
  is (XS::APItest::Hash::delete ($copy, $key), $key,
      "hv_delete present$message $printable");
  ok (!brute_force_exists ($copy, $key),
      "hv_delete present$message $printable");
}

sub test_delete_absent {
  my ($hash, $key, $printable, $message) = @_;

  my $copy = {};
  my $class = tied %$hash;
  if (defined $class) {
    tie %$copy, ref $class;
  }
  $copy = {%$hash};
  is (delete $copy->{$key}, undef, "hv_delete_ent absent$message $printable");
  $copy = {%$hash};
  is (XS::APItest::Hash::delete ($copy, $key), undef,
      "hv_delete absent$message $printable");
}

sub test_store {
  my ($hash, $key, $printable, $message, $defaults) = @_;
  my $HV_STORE_IS_CRAZY = 1;

  # We are cheating - hv_store returns NULL for a store into an empty
  # tied hash. This isn't helpful here.

  my $class = tied %$hash;

  # It's important to do this with nice new hashes created each time round
  # the loop, rather than hashes in the pad, which get recycled, and may have
  # xhv_array non-NULL
  my $h1 = {@$defaults};
  my $h2 = {@$defaults};
  if (defined $class) {
    tie %$h1, ref $class;
    tie %$h2, ref $class;
    if ($] > 5.009) {
      # bug 36327 is fixed
      $HV_STORE_IS_CRAZY = undef;
    } else {
      # HV store_ent returns 1 if there was already underlying hash storage
      $HV_STORE_IS_CRAZY = undef unless @$defaults;
    }
  }
  is (XS::APItest::Hash::store_ent($h1, $key, 1), $HV_STORE_IS_CRAZY,
      "hv_store_ent$message $printable");
  ok (brute_force_exists ($h1, $key), "hv_store_ent$message $printable");
  is (XS::APItest::Hash::store($h2, $key,  1), $HV_STORE_IS_CRAZY,
      "hv_store$message $printable");
  ok (brute_force_exists ($h2, $key), "hv_store$message $printable");
}

sub test_fetch_present {
  my ($hash, $key, $printable, $message) = @_;

  is ($hash->{$key}, $key, "hv_fetch_ent present$message $printable");
  is (XS::APItest::Hash::fetch ($hash, $key), $key,
      "hv_fetch present$message $printable");
}

sub test_fetch_absent {
  my ($hash, $key, $printable, $message) = @_;

  is ($hash->{$key}, undef, "hv_fetch_ent absent$message $printable");
  is (XS::APItest::Hash::fetch ($hash, $key), undef,
      "hv_fetch absent$message $printable");
}

sub brute_force_exists {
  my ($hash, $key) = @_;
  foreach (keys %$hash) {
    return 1 if $key eq $_;
  }
  return 0;
}

sub rot13 {
    my @results = map {my $a = $_; $a =~ tr/A-Za-z/N-ZA-Mn-za-m/; $a} @_;
    wantarray ? @results : $results[0];
}

sub bitflip {
    my @results = map {join '', map {chr(32 ^ ord $_)} split '', $_} @_;
    wantarray ? @results : $results[0];
}
Commit	Line	Data
0314122a	1	#!perl -w
	2
	3	BEGIN {
	4	chdir 't' if -d 't';
	5	@INC = '../lib';
	6	push @INC, "::lib:$MacPerl::Architecture:" if $^O eq 'MacOS';
	7	require Config; import Config;
	8	if ($Config{'extensions'} !~ /\bXS\/APItest\b/) {
	9	# Look, I'm using this fully-qualified variable more than once!
	10	my $arch = $MacPerl::Architecture;
	11	print "1..0 # Skip: XS::APItest was not built\n";
	12	exit 0;
	13	}
	14	}
	15
3128e575	16	use strict;
3128e575	17	use utf8;
0314122a	18	use Tie::Hash;
3128e575	19	use Test::More 'no_plan';
3128e575	20
55289a74	21	BEGIN {use_ok('XS::APItest')};
0314122a	22
3128e575	23	sub preform_test;
	24	sub test_present;
	25	sub test_absent;
	26	sub test_delete_present;
	27	sub test_delete_absent;
	28	sub brute_force_exists;
	29	sub test_store;
	30	sub test_fetch_present;
	31	sub test_fetch_absent;
0314122a	32
b60cf05a	33	my $utf8_for_258 = chr 258;
b60cf05a	34	utf8::encode $utf8_for_258;
0314122a	35
3128e575	36	my @testkeys = ('N', chr 198, chr 256);
b60cf05a	37	my @keys = (@testkeys, $utf8_for_258);
0314122a	38
3128e575	39	foreach (@keys) {
	40	utf8::downgrade $_, 1;
	41	}
	42	main_tests (\@keys, \@testkeys, '');
0314122a	43
3128e575	44	foreach (@keys) {
	45	utf8::upgrade $_;
	46	}
	47	main_tests (\@keys, \@testkeys, ' [utf8 hash]');
0314122a	48
3128e575	49	{
	50	my %h = (a=>'cheat');
	51	tie %h, 'Tie::StdHash';
9568a123	52	# is bug 36327 fixed?
	53	my $result = ($] > 5.009) ? undef : 1;
	54
	55	is (XS::APItest::Hash::store(\%h, chr 258, 1), $result);
3128e575	56
	57	ok (!exists $h{$utf8_for_258},
	58	"hv_store doesn't insert a key with the raw utf8 on a tied hash");
	59	}
0314122a	60
9568a123	61	if ($] > 5.009) {
5d2b1485	62	my $strtab = strtab();
5d2b1485	63	is (ref $strtab, 'HASH', "The shared string table quacks like a hash");
8ca60cef	64	my $wibble = "\0";
5d2b1485	65	eval {
8ca60cef	66	$strtab->{$wibble}++;
5d2b1485	67	};
	68	my $prefix = "Cannot modify shared string table in hv_";
	69	my $what = $prefix . 'fetch';
	70	like ($@, qr/^$what/,$what);
	71	eval {
	72	XS::APItest::Hash::store($strtab, 'Boom!', 1)
	73	};
	74	$what = $prefix . 'store';
	75	like ($@, qr/^$what/, $what);
	76	if (0) {
	77	A::B->method();
	78	}
	79	# DESTROY should be in there.
	80	eval {
	81	delete $strtab->{DESTROY};
	82	};
	83	$what = $prefix . 'delete';
	84	like ($@, qr/^$what/, $what);
	85	# I can't work out how to get to the code that flips the wasutf8 flag on
	86	# the hash key without some ikcy XS
	87	}
2dc92170	88
	89	{
	90	is_deeply([&XS::APItest::Hash::test_hv_free_ent], [2,2,1,1],
	91	"hv_free_ent frees the value immediately");
	92	is_deeply([&XS::APItest::Hash::test_hv_delayfree_ent], [2,2,2,1],
	93	"hv_delayfree_ent keeps the value around until FREETMPS");
	94	}
35ab5632	95
	96	foreach my $in ("", "N", "a\0b") {
	97	my $got = XS::APItest::Hash::test_share_unshare_pvn($in);
	98	is ($got, $in, "test_share_unshare_pvn");
	99	}
	100
55289a74	101	if ($] > 5.009) {
53c40a8f	102	foreach ([\&XS::APItest::Hash::rot13_hash, \&rot13, "rot 13"],
	103	[\&XS::APItest::Hash::bitflip_hash, \&bitflip, "bitflip"],
	104	) {
	105	my ($setup, $mapping, $name) = @$_;
	106	my %hash;
	107	my %placebo = (a => 1, p => 2, i => 4, e => 8);
	108	$setup->(\%hash);
	109	$hash{a}++; @hash{qw(p i e)} = (2, 4, 8);
	110
	111	test_U_hash(\%hash, \%placebo, [f => 9, g => 10, h => 11], $mapping,
	112	$name);
	113	}
850f5f16	114	foreach my $upgrade_o (0, 1) {
	115	foreach my $upgrade_n (0, 1) {
	116	my (%hash, %placebo);
	117	XS::APItest::Hash::bitflip_hash(\%hash);
	118	foreach my $new (["7", 65, 67, 80],
	119	["8", 163, 171, 215],
	120	["U", 2603, 2604, 2604],
	121	) {
	122	foreach my $code (78, 240, 256, 1336) {
	123	my $key = chr $code;
	124	# This is the UTF-8 byte sequence for the key.
	125	my $key_utf8 = $key;
	126	utf8::encode($key_utf8);
	127	if ($upgrade_o) {
	128	$key .= chr 256;
	129	chop $key;
	130	}
	131	$hash{$key} = $placebo{$key} = $code;
	132	$hash{$key_utf8} = $placebo{$key_utf8} = "$code as UTF-8";
	133	}
	134	my $name = 'bitflip ' . shift @$new;
	135	my @new_kv;
	136	foreach my $code (@$new) {
	137	my $key = chr $code;
	138	if ($upgrade_n) {
	139	$key .= chr 256;
	140	chop $key;
	141	}
	142	push @new_kv, $key, $_;
	143	}
	144
	145	$name .= ' upgraded(orig) ' if $upgrade_o;
	146	$name .= ' upgraded(new) ' if $upgrade_n;
	147	test_U_hash(\%hash, \%placebo, \@new_kv, \&bitflip, $name);
	148	}
	149	}
	150	}
53c40a8f	151	}
53c40a8f	152
527df579	153	{
	154	my $as_utf8 = "\241" . chr 256;
	155	chop $as_utf8;
	156	my $as_bytes = "\243";
	157	foreach my $key ('N', $as_bytes, $as_utf8, "\x{2623}") {
	158	my $ord = ord $key;
58ca560a	159	foreach my $hash_it (0, 1) {
	160	foreach my $what (qw(pv sv)) {
	161	my %hash;
	162	is (XS::APItest::Hash::common({hv => \%hash,
	163	"key$what" => $key,
	164	val => $ord,
	165	"hash_$what" => $hash_it,
	166	action =>
	167	XS::APItest::HV_FETCH_ISSTORE}),
	168	$ord, "store $ord with $what \$hash_it = $hash_it");
	169	is_deeply ([each %hash], [$key, $ord],
	170	"First key read is good");
	171	is_deeply ([each %hash], [], "No second key good");
	172
	173	is ($hash{$key}, $ord, "Direct hash read finds $ord");
	174	}
527df579	175	}
	176	}
	177	}
	178
53c40a8f	179	exit;
	180
	181	################################ The End ################################
	182
	183	sub test_U_hash {
	184	my ($hash, $placebo, $new, $mapping, $message) = @_;
	185	my @hitlist = keys %$placebo;
	186	print "# $message\n";
b54b4831	187
53c40a8f	188	my @keys = sort keys %$hash;
	189	is ("@keys", join(' ', sort($mapping->(keys %$placebo))),
	190	"uvar magic called exactly once on store");
b54b4831	191
850f5f16	192	is (keys %$hash, keys %$placebo);
55289a74	193
53c40a8f	194	my $victim = shift @hitlist;
53c40a8f	195	is (delete $hash->{$victim}, delete $placebo->{$victim});
55289a74	196
850f5f16	197	is (keys %$hash, keys %$placebo);
53c40a8f	198	@keys = sort keys %$hash;
53c40a8f	199	is ("@keys", join(' ', sort($mapping->(keys %$placebo))));
55289a74	200
53c40a8f	201	$victim = shift @hitlist;
53c40a8f	202	is (XS::APItest::Hash::delete_ent ($hash, $victim,
55289a74	203	XS::APItest::HV_DISABLE_UVAR_XKEY),
55289a74	204	undef, "Deleting a known key with conversion disabled fails (ent)");
850f5f16	205	is (keys %$hash, keys %$placebo);
55289a74	206
53c40a8f	207	is (XS::APItest::Hash::delete_ent ($hash, $victim, 0),
	208	delete $placebo->{$victim},
	209	"Deleting a known key with conversion enabled works (ent)");
850f5f16	210	is (keys %$hash, keys %$placebo);
53c40a8f	211	@keys = sort keys %$hash;
53c40a8f	212	is ("@keys", join(' ', sort($mapping->(keys %$placebo))));
55289a74	213
53c40a8f	214	$victim = shift @hitlist;
53c40a8f	215	is (XS::APItest::Hash::delete ($hash, $victim,
55289a74	216	XS::APItest::HV_DISABLE_UVAR_XKEY),
55289a74	217	undef, "Deleting a known key with conversion disabled fails");
850f5f16	218	is (keys %$hash, keys %$placebo);
53c40a8f	219
	220	is (XS::APItest::Hash::delete ($hash, $victim, 0),
	221	delete $placebo->{$victim},
	222	"Deleting a known key with conversion enabled works");
850f5f16	223	is (keys %$hash, keys %$placebo);
53c40a8f	224	@keys = sort keys %$hash;
	225	is ("@keys", join(' ', sort($mapping->(keys %$placebo))));
	226
	227	my ($k, $v) = splice @$new, 0, 2;
	228	$hash->{$k} = $v;
	229	$placebo->{$k} = $v;
850f5f16	230	is (keys %$hash, keys %$placebo);
53c40a8f	231	@keys = sort keys %$hash;
	232	is ("@keys", join(' ', sort($mapping->(keys %$placebo))));
	233
	234	($k, $v) = splice @$new, 0, 2;
	235	is (XS::APItest::Hash::store_ent($hash, $k, $v), $v, "store_ent");
	236	$placebo->{$k} = $v;
850f5f16	237	is (keys %$hash, keys %$placebo);
53c40a8f	238	@keys = sort keys %$hash;
	239	is ("@keys", join(' ', sort($mapping->(keys %$placebo))));
	240
	241	($k, $v) = splice @$new, 0, 2;
	242	is (XS::APItest::Hash::store($hash, $k, $v), $v, "store");
53c40a8f	243	$placebo->{$k} = $v;
850f5f16	244	is (keys %$hash, keys %$placebo);
53c40a8f	245	@keys = sort keys %$hash;
	246	is ("@keys", join(' ', sort($mapping->(keys %$placebo))));
	247
	248	@hitlist = keys %$placebo;
	249	$victim = shift @hitlist;
	250	is (XS::APItest::Hash::fetch_ent($hash, $victim), $placebo->{$victim},
	251	"fetch_ent");
	252	is (XS::APItest::Hash::fetch_ent($hash, $mapping->($victim)), undef,
bdee33e4	253	"fetch_ent (missing)");
bdee33e4	254
53c40a8f	255	$victim = shift @hitlist;
	256	is (XS::APItest::Hash::fetch($hash, $victim), $placebo->{$victim},
	257	"fetch");
	258	is (XS::APItest::Hash::fetch($hash, $mapping->($victim)), undef,
bdee33e4	259	"fetch (missing)");
bdee33e4	260
53c40a8f	261	$victim = shift @hitlist;
	262	ok (XS::APItest::Hash::exists_ent($hash, $victim), "exists_ent");
	263	ok (!XS::APItest::Hash::exists_ent($hash, $mapping->($victim)),
bdee33e4	264	"exists_ent (missing)");
bdee33e4	265
53c40a8f	266	$victim = shift @hitlist;
6b4de907	267	die "Need a victim" unless defined $victim;
53c40a8f	268	ok (XS::APItest::Hash::exists($hash, $victim), "exists");
	269	ok (!XS::APItest::Hash::exists($hash, $mapping->($victim)),
	270	"exists (missing)");
6b4de907	271
	272	is (XS::APItest::Hash::common({hv => $hash, keysv => $victim}),
	273	$placebo->{$victim}, "common (fetch)");
	274	is (XS::APItest::Hash::common({hv => $hash, keypv => $victim}),
	275	$placebo->{$victim}, "common (fetch pv)");
	276	is (XS::APItest::Hash::common({hv => $hash, keysv => $victim,
	277	action => XS::APItest::HV_DISABLE_UVAR_XKEY}),
	278	undef, "common (fetch) missing");
	279	is (XS::APItest::Hash::common({hv => $hash, keypv => $victim,
	280	action => XS::APItest::HV_DISABLE_UVAR_XKEY}),
	281	undef, "common (fetch pv) missing");
	282	is (XS::APItest::Hash::common({hv => $hash, keysv => $mapping->($victim),
	283	action => XS::APItest::HV_DISABLE_UVAR_XKEY}),
	284	$placebo->{$victim}, "common (fetch) missing mapped");
	285	is (XS::APItest::Hash::common({hv => $hash, keypv => $mapping->($victim),
	286	action => XS::APItest::HV_DISABLE_UVAR_XKEY}),
	287	$placebo->{$victim}, "common (fetch pv) missing mapped");
b54b4831	288	}
b54b4831	289
3128e575	290	sub main_tests {
	291	my ($keys, $testkeys, $description) = @_;
	292	foreach my $key (@$testkeys) {
	293	my $lckey = ($key eq chr 198) ? chr 230 : lc $key;
	294	my $unikey = $key;
	295	utf8::encode $unikey;
0314122a	296
3128e575	297	utf8::downgrade $key, 1;
	298	utf8::downgrade $lckey, 1;
	299	utf8::downgrade $unikey, 1;
	300	main_test_inner ($key, $lckey, $unikey, $keys, $description);
0314122a	301
3128e575	302	utf8::upgrade $key;
	303	utf8::upgrade $lckey;
	304	utf8::upgrade $unikey;
	305	main_test_inner ($key, $lckey, $unikey, $keys,
	306	$description . ' [key utf8 on]');
	307	}
0314122a	308
3128e575	309	# hv_exists was buggy for tied hashes, in that the raw utf8 key was being
	310	# used - the utf8 flag was being lost.
	311	perform_test (\&test_absent, (chr 258), $keys, '');
0314122a	312
3128e575	313	perform_test (\&test_fetch_absent, (chr 258), $keys, '');
3128e575	314	perform_test (\&test_delete_absent, (chr 258), $keys, '');
0314122a	315	}
0314122a	316
3128e575	317	sub main_test_inner {
	318	my ($key, $lckey, $unikey, $keys, $description) = @_;
	319	perform_test (\&test_present, $key, $keys, $description);
	320	perform_test (\&test_fetch_present, $key, $keys, $description);
	321	perform_test (\&test_delete_present, $key, $keys, $description);
b60cf05a	322
3128e575	323	perform_test (\&test_store, $key, $keys, $description, [a=>'cheat']);
3128e575	324	perform_test (\&test_store, $key, $keys, $description, []);
b60cf05a	325
3128e575	326	perform_test (\&test_absent, $lckey, $keys, $description);
	327	perform_test (\&test_fetch_absent, $lckey, $keys, $description);
	328	perform_test (\&test_delete_absent, $lckey, $keys, $description);
b60cf05a	329
3128e575	330	return if $unikey eq $key;
	331
	332	perform_test (\&test_absent, $unikey, $keys, $description);
	333	perform_test (\&test_fetch_absent, $unikey, $keys, $description);
	334	perform_test (\&test_delete_absent, $unikey, $keys, $description);
b60cf05a	335	}
b60cf05a	336
3128e575	337	sub perform_test {
3128e575	338	my ($test_sub, $key, $keys, $message, @other) = @_;
b60cf05a	339	my $printable = join ',', map {ord} split //, $key;
b60cf05a	340
3128e575	341	my (%hash, %tiehash);
3128e575	342	tie %tiehash, 'Tie::StdHash';
b60cf05a	343
3128e575	344	@hash{@$keys} = @$keys;
3128e575	345	@tiehash{@$keys} = @$keys;
b60cf05a	346
3128e575	347	&$test_sub (\%hash, $key, $printable, $message, @other);
3128e575	348	&$test_sub (\%tiehash, $key, $printable, "$message tie", @other);
b60cf05a	349	}
b60cf05a	350
3128e575	351	sub test_present {
	352	my ($hash, $key, $printable, $message) = @_;
	353
	354	ok (exists $hash->{$key}, "hv_exists_ent present$message $printable");
	355	ok (XS::APItest::Hash::exists ($hash, $key),
	356	"hv_exists present$message $printable");
b60cf05a	357	}
b60cf05a	358
3128e575	359	sub test_absent {
3128e575	360	my ($hash, $key, $printable, $message) = @_;
858117f8	361
3128e575	362	ok (!exists $hash->{$key}, "hv_exists_ent absent$message $printable");
	363	ok (!XS::APItest::Hash::exists ($hash, $key),
	364	"hv_exists absent$message $printable");
b60cf05a	365	}
b60cf05a	366
3128e575	367	sub test_delete_present {
3128e575	368	my ($hash, $key, $printable, $message) = @_;
b60cf05a	369
3128e575	370	my $copy = {};
	371	my $class = tied %$hash;
	372	if (defined $class) {
	373	tie %$copy, ref $class;
	374	}
	375	$copy = {%$hash};
8829b5e2	376	ok (brute_force_exists ($copy, $key),
8829b5e2	377	"hv_delete_ent present$message $printable");
3128e575	378	is (delete $copy->{$key}, $key, "hv_delete_ent present$message $printable");
8829b5e2	379	ok (!brute_force_exists ($copy, $key),
8829b5e2	380	"hv_delete_ent present$message $printable");
3128e575	381	$copy = {%$hash};
8829b5e2	382	ok (brute_force_exists ($copy, $key),
8829b5e2	383	"hv_delete present$message $printable");
3128e575	384	is (XS::APItest::Hash::delete ($copy, $key), $key,
3128e575	385	"hv_delete present$message $printable");
8829b5e2	386	ok (!brute_force_exists ($copy, $key),
8829b5e2	387	"hv_delete present$message $printable");
b60cf05a	388	}
b60cf05a	389
3128e575	390	sub test_delete_absent {
3128e575	391	my ($hash, $key, $printable, $message) = @_;
b60cf05a	392
3128e575	393	my $copy = {};
	394	my $class = tied %$hash;
	395	if (defined $class) {
	396	tie %$copy, ref $class;
	397	}
	398	$copy = {%$hash};
	399	is (delete $copy->{$key}, undef, "hv_delete_ent absent$message $printable");
	400	$copy = {%$hash};
	401	is (XS::APItest::Hash::delete ($copy, $key), undef,
	402	"hv_delete absent$message $printable");
b60cf05a	403	}
b60cf05a	404
3128e575	405	sub test_store {
	406	my ($hash, $key, $printable, $message, $defaults) = @_;
	407	my $HV_STORE_IS_CRAZY = 1;
b60cf05a	408
3128e575	409	# We are cheating - hv_store returns NULL for a store into an empty
3128e575	410	# tied hash. This isn't helpful here.
0314122a	411
3128e575	412	my $class = tied %$hash;
0314122a	413
9568a123	414	# It's important to do this with nice new hashes created each time round
	415	# the loop, rather than hashes in the pad, which get recycled, and may have
	416	# xhv_array non-NULL
	417	my $h1 = {@$defaults};
	418	my $h2 = {@$defaults};
3128e575	419	if (defined $class) {
9568a123	420	tie %$h1, ref $class;
	421	tie %$h2, ref $class;
	422	if ($] > 5.009) {
	423	# bug 36327 is fixed
	424	$HV_STORE_IS_CRAZY = undef;
	425	} else {
	426	# HV store_ent returns 1 if there was already underlying hash storage
	427	$HV_STORE_IS_CRAZY = undef unless @$defaults;
	428	}
3128e575	429	}
9568a123	430	is (XS::APItest::Hash::store_ent($h1, $key, 1), $HV_STORE_IS_CRAZY,
	431	"hv_store_ent$message $printable");
	432	ok (brute_force_exists ($h1, $key), "hv_store_ent$message $printable");
	433	is (XS::APItest::Hash::store($h2, $key, 1), $HV_STORE_IS_CRAZY,
3128e575	434	"hv_store$message $printable");
9568a123	435	ok (brute_force_exists ($h2, $key), "hv_store$message $printable");
3128e575	436	}
0314122a	437
3128e575	438	sub test_fetch_present {
3128e575	439	my ($hash, $key, $printable, $message) = @_;
b60cf05a	440
3128e575	441	is ($hash->{$key}, $key, "hv_fetch_ent present$message $printable");
	442	is (XS::APItest::Hash::fetch ($hash, $key), $key,
	443	"hv_fetch present$message $printable");
0314122a	444	}
0314122a	445
3128e575	446	sub test_fetch_absent {
3128e575	447	my ($hash, $key, $printable, $message) = @_;
b60cf05a	448
3128e575	449	is ($hash->{$key}, undef, "hv_fetch_ent absent$message $printable");
	450	is (XS::APItest::Hash::fetch ($hash, $key), undef,
	451	"hv_fetch absent$message $printable");
	452	}
b60cf05a	453
3128e575	454	sub brute_force_exists {
	455	my ($hash, $key) = @_;
	456	foreach (keys %$hash) {
	457	return 1 if $key eq $_;
	458	}
	459	return 0;
b60cf05a	460	}
b54b4831	461
	462	sub rot13 {
	463	my @results = map {my $a = $_; $a =~ tr/A-Za-z/N-ZA-Mn-za-m/; $a} @_;
	464	wantarray ? @results : $results[0];
	465	}
53c40a8f	466
	467	sub bitflip {
	468	my @results = map {join '', map {chr(32 ^ ord $_)} split '', $_} @_;
	469	wantarray ? @results : $results[0];
	470	}