#!./perl
-# This test harness will (eventually) test the "tie" functionality
-# without the need for a *DBM* implementation.
-
-# Currently it only tests the untie warning
+# Add new tests to the end with format:
+# ########
+#
+# # test description
+# Test code
+# EXPECT
+# Warn or die msgs (if any) at - line 1234
+#
chdir 't' if -d 't';
-@INC = "../lib";
+@INC = '../lib';
$ENV{PERL5LIB} = "../lib";
$|=1;
-# catch warnings into fatal errors
-$SIG{__WARN__} = sub { die "WARNING: @_" } ;
-
undef $/;
-@prgs = split "\n########\n", <DATA>;
-print "1..", scalar @prgs, "\n";
+@prgs = split /^########\n/m, <DATA>;
+require './test.pl';
+plan(tests => scalar @prgs);
for (@prgs){
- my($prog,$expected) = split(/\nEXPECT\n/, $_);
- eval "$prog" ;
- $status = $?;
- $results = $@ ;
+ ++$i;
+ my($prog,$expected) = split(/\nEXPECT\n/, $_, 2);
+ print("not ok $i # bad test format\n"), next
+ unless defined $expected;
+ my ($testname) = $prog =~ /^# (.*)\n/m;
+ $testname ||= '';
+ $TODO = $testname =~ s/^TODO //;
$results =~ s/\n+$//;
$expected =~ s/\n+$//;
- if ( $status or $results and $results !~ /^WARNING: $expected/){
- print STDERR "STATUS: $status\n";
- print STDERR "PROG: $prog\n";
- print STDERR "EXPECTED:\n$expected\n";
- print STDERR "GOT:\n$results\n";
- print "not ";
- }
- print "ok ", ++$i, "\n";
+
+ fresh_perl_is($prog, $expected, {}, $testname);
}
__END__
EXPECT
########
+# standard behaviour, without any extra references
+use Tie::Hash ;
+{package Tie::HashUntie;
+ use base 'Tie::StdHash';
+ sub UNTIE
+ {
+ warn "Untied\n";
+ }
+}
+tie %h, Tie::HashUntie;
+untie %h;
+EXPECT
+Untied
+########
+
# standard behaviour, with 1 extra reference
use Tie::Hash ;
$a = tie %h, Tie::StdHash;
########
# strict behaviour, without any extra references
-use warning 'untie';
-#local $^W = 1 ;
+use warnings 'untie';
use Tie::Hash ;
tie %h, Tie::StdHash;
untie %h;
########
# strict behaviour, with 1 extra references generating an error
-use warning 'untie';
-#local $^W = 1 ;
+use warnings 'untie';
use Tie::Hash ;
$a = tie %h, Tie::StdHash;
untie %h;
EXPECT
-untie attempted while 1 inner references still exist
+untie attempted while 1 inner references still exist at - line 6.
########
# strict behaviour, with 1 extra references via tied generating an error
-use warning 'untie';
-#local $^W = 1 ;
+use warnings 'untie';
use Tie::Hash ;
tie %h, Tie::StdHash;
$a = tied %h;
untie %h;
EXPECT
-untie attempted while 1 inner references still exist
+untie attempted while 1 inner references still exist at - line 7.
########
# strict behaviour, with 1 extra references which are destroyed
-use warning 'untie';
-#local $^W = 1 ;
+use warnings 'untie';
use Tie::Hash ;
$a = tie %h, Tie::StdHash;
$a = 0 ;
########
# strict behaviour, with extra 1 references via tied which are destroyed
-use warning 'untie';
-#local $^W = 1 ;
+use warnings 'untie';
use Tie::Hash ;
tie %h, Tie::StdHash;
$a = tied %h;
EXPECT
########
-# strict error behaviour, with 2 extra references
-use warning 'untie';
-#local $^W = 1 ;
+# strict error behaviour, with 2 extra references
+use warnings 'untie';
use Tie::Hash ;
$a = tie %h, Tie::StdHash;
$b = tied %h ;
untie %h;
EXPECT
-untie attempted while 2 inner references still exist
+untie attempted while 2 inner references still exist at - line 7.
########
# strict behaviour, check scope of strictness.
-no warning 'untie';
-#local $^W = 0 ;
+no warnings 'untie';
use Tie::Hash ;
$A = tie %H, Tie::StdHash;
$C = $B = tied %H ;
{
- use warning 'untie';
- #local $^W = 1 ;
+ use warnings 'untie';
use Tie::Hash ;
tie %h, Tie::StdHash;
untie %h;
EXPECT
########
-# verify no leak when underlying object is selfsame tied variable
-my ($a, $b);
+# Forbidden aggregate self-ties
sub Self::TIEHASH { bless $_[1], $_[0] }
-sub Self::DESTROY { $b = $_[0] + 0; }
{
- my %b5;
- $a = \%b5 + 0;
- tie %b5, 'Self', \%b5;
+ my %c;
+ tie %c, 'Self', \%c;
+}
+EXPECT
+Self-ties of arrays and hashes are not supported at - line 6.
+########
+
+# Allowed scalar self-ties
+my $destroyed = 0;
+sub Self::TIESCALAR { bless $_[1], $_[0] }
+sub Self::DESTROY { $destroyed = 1; }
+{
+ my $c = 42;
+ tie $c, 'Self', \$c;
+}
+die "self-tied scalar not DESTROYed" unless $destroyed == 1;
+EXPECT
+########
+
+# Allowed glob self-ties
+my $destroyed = 0;
+my $printed = 0;
+sub Self2::TIEHANDLE { bless $_[1], $_[0] }
+sub Self2::DESTROY { $destroyed = 1; }
+sub Self2::PRINT { $printed = 1; }
+{
+ use Symbol;
+ my $c = gensym;
+ tie *$c, 'Self2', $c;
+ print $c 'Hello';
+}
+die "self-tied glob not PRINTed" unless $printed == 1;
+die "self-tied glob not DESTROYed" unless $destroyed == 1;
+EXPECT
+########
+
+# Allowed IO self-ties
+my $destroyed = 0;
+sub Self3::TIEHANDLE { bless $_[1], $_[0] }
+sub Self3::DESTROY { $destroyed = 1; }
+sub Self3::PRINT { $printed = 1; }
+{
+ use Symbol 'geniosym';
+ my $c = geniosym;
+ tie *$c, 'Self3', $c;
+ print $c 'Hello';
+}
+die "self-tied IO not PRINTed" unless $printed == 1;
+die "self-tied IO not DESTROYed" unless $destroyed == 1;
+EXPECT
+########
+
+# TODO IO "self-tie" via TEMP glob
+my $destroyed = 0;
+sub Self3::TIEHANDLE { bless $_[1], $_[0] }
+sub Self3::DESTROY { $destroyed = 1; }
+sub Self3::PRINT { $printed = 1; }
+{
+ use Symbol 'geniosym';
+ my $c = geniosym;
+ tie *$c, 'Self3', \*$c;
+ print $c 'Hello';
+}
+die "IO tied to TEMP glob not PRINTed" unless $printed == 1;
+die "IO tied to TEMP glob not DESTROYed" unless $destroyed == 1;
+EXPECT
+########
+
+# Interaction of tie and vec
+
+my ($a, $b);
+use Tie::Scalar;
+tie $a,Tie::StdScalar or die;
+vec($b,1,1)=1;
+$a = $b;
+vec($a,1,1)=0;
+vec($b,1,1)=0;
+die unless $a eq $b;
+EXPECT
+########
+
+# correct unlocalisation of tied hashes (patch #16431)
+use Tie::Hash ;
+tie %tied, Tie::StdHash;
+{ local $hash{'foo'} } warn "plain hash bad unlocalize" if exists $hash{'foo'};
+{ local $tied{'foo'} } warn "tied hash bad unlocalize" if exists $tied{'foo'};
+{ local $ENV{'foo'} } warn "%ENV bad unlocalize" if exists $ENV{'foo'};
+EXPECT
+########
+
+# An attempt at lvalueable barewords broke this
+tie FH, 'main';
+EXPECT
+Can't modify constant item in tie at - line 3, near "'main';"
+Execution of - aborted due to compilation errors.
+########
+
+# localizing tied hash slices
+$ENV{FooA} = 1;
+$ENV{FooB} = 2;
+print exists $ENV{FooA} ? 1 : 0, "\n";
+print exists $ENV{FooB} ? 2 : 0, "\n";
+print exists $ENV{FooC} ? 3 : 0, "\n";
+{
+ local @ENV{qw(FooA FooC)};
+ print exists $ENV{FooA} ? 4 : 0, "\n";
+ print exists $ENV{FooB} ? 5 : 0, "\n";
+ print exists $ENV{FooC} ? 6 : 0, "\n";
+}
+print exists $ENV{FooA} ? 7 : 0, "\n";
+print exists $ENV{FooB} ? 8 : 0, "\n";
+print exists $ENV{FooC} ? 9 : 0, "\n"; # this should not exist
+EXPECT
+1
+2
+0
+4
+5
+6
+7
+8
+0
+########
+#
+# FETCH freeing tie'd SV
+sub TIESCALAR { bless [] }
+sub FETCH { *a = \1; 1 }
+tie $a, 'main';
+print $a;
+EXPECT
+########
+
+# [20020716.007] - nested FETCHES
+
+sub F1::TIEARRAY { bless [], 'F1' }
+sub F1::FETCH { 1 }
+my @f1;
+tie @f1, 'F1';
+
+sub F2::TIEARRAY { bless [2], 'F2' }
+sub F2::FETCH { my $self = shift; my $x = $f1[3]; $self }
+my @f2;
+tie @f2, 'F2';
+
+print $f2[4][0],"\n";
+
+sub F3::TIEHASH { bless [], 'F3' }
+sub F3::FETCH { 1 }
+my %f3;
+tie %f3, 'F3';
+
+sub F4::TIEHASH { bless [3], 'F4' }
+sub F4::FETCH { my $self = shift; my $x = $f3{3}; $self }
+my %f4;
+tie %f4, 'F4';
+
+print $f4{'foo'}[0],"\n";
+
+EXPECT
+2
+3
+########
+# test untie() from within FETCH
+package Foo;
+sub TIESCALAR { my $pkg = shift; return bless [@_], $pkg; }
+sub FETCH {
+ my $self = shift;
+ my ($obj, $field) = @$self;
+ untie $obj->{$field};
+ $obj->{$field} = "Bar";
+}
+package main;
+tie $a->{foo}, "Foo", $a, "foo";
+$a->{foo}; # access once
+# the hash element should not be tied anymore
+print defined tied $a->{foo} ? "not ok" : "ok";
+EXPECT
+ok
+########
+# the tmps returned by FETCH should appear to be SCALAR
+# (even though they are now implemented using PVLVs.)
+package X;
+sub TIEHASH { bless {} }
+sub TIEARRAY { bless {} }
+sub FETCH {1}
+my (%h, @a);
+tie %h, 'X';
+tie @a, 'X';
+my $r1 = \$h{1};
+my $r2 = \$a[0];
+my $s = "$r1 ". ref($r1) . " $r2 " . ref($r2);
+$s=~ s/\(0x\w+\)//g;
+print $s, "\n";
+EXPECT
+SCALAR SCALAR SCALAR SCALAR
+########
+# [perl #23287] segfault in untie
+sub TIESCALAR { bless $_[1], $_[0] }
+my $var;
+tie $var, 'main', \$var;
+untie $var;
+EXPECT
+########
+# Test case from perlmonks by runrig
+# http://www.perlmonks.org/index.pl?node_id=273490
+# "Here is what I tried. I think its similar to what you've tried
+# above. Its odd but convienient that after untie'ing you are left with
+# a variable that has the same value as was last returned from
+# FETCH. (At least on my perl v5.6.1). So you don't need to pass a
+# reference to the variable in order to set it after the untie (here it
+# is accessed through a closure)."
+use strict;
+use warnings;
+package MyTied;
+sub TIESCALAR {
+ my ($class,$code) = @_;
+ bless $code, $class;
+}
+sub FETCH {
+ my $self = shift;
+ print "Untie\n";
+ $self->();
+}
+package main;
+my $var;
+tie $var, 'MyTied', sub { untie $var; 4 };
+print "One\n";
+print "$var\n";
+print "Two\n";
+print "$var\n";
+print "Three\n";
+print "$var\n";
+EXPECT
+One
+Untie
+4
+Two
+4
+Three
+4
+########
+# [perl #22297] cannot untie scalar from within tied FETCH
+my $counter = 0;
+my $x = 7;
+my $ref = \$x;
+tie $x, 'Overlay', $ref, $x;
+my $y;
+$y = $x;
+$y = $x;
+$y = $x;
+$y = $x;
+#print "WILL EXTERNAL UNTIE $ref\n";
+untie $$ref;
+$y = $x;
+$y = $x;
+$y = $x;
+$y = $x;
+#print "counter = $counter\n";
+
+print (($counter == 1) ? "ok\n" : "not ok\n");
+
+package Overlay;
+
+sub TIESCALAR
+{
+ my $pkg = shift;
+ my ($ref, $val) = @_;
+ return bless [ $ref, $val ], $pkg;
+}
+
+sub FETCH
+{
+ my $self = shift;
+ my ($ref, $val) = @$self;
+ #print "WILL INTERNAL UNITE $ref\n";
+ $counter++;
+ untie $$ref;
+ return $val;
}
-die unless $a == $b;
EXPECT
+ok
+########
+
+# TODO [perl #948] cannot meaningfully tie $,
+package TieDollarComma;
+
+sub TIESCALAR {
+ my $pkg = shift;
+ return bless \my $x, $pkg;
+}
+
+sub STORE {
+ my $self = shift;
+ $$self = shift;
+ print "STORE set '$$self'\n";
+}
+
+sub FETCH {
+ my $self = shift;
+ print "FETCH\n";
+ return $$self;
+}
+package main;
+
+tie $,, 'TieDollarComma';
+$, = 'BOBBINS';
+print "join", "things", "up\n";
+EXPECT
+STORE set 'BOBBINS'
+FETCH
+FETCH
+joinBOBBINSthingsBOBBINSup
+########
+
+# test SCALAR method
+package TieScalar;
+
+sub TIEHASH {
+ my $pkg = shift;
+ bless { } => $pkg;
+}
+
+sub STORE {
+ $_[0]->{$_[1]} = $_[2];
+}
+
+sub FETCH {
+ $_[0]->{$_[1]}
+}
+
+sub CLEAR {
+ %{ $_[0] } = ();
+}
+
+sub SCALAR {
+ print "SCALAR\n";
+ return 0 if ! keys %{$_[0]};
+ sprintf "%i/%i", scalar keys %{$_[0]}, scalar keys %{$_[0]};
+}
+
+package main;
+tie my %h => "TieScalar";
+$h{key1} = "val1";
+$h{key2} = "val2";
+print scalar %h, "\n";
+%h = ();
+print scalar %h, "\n";
+EXPECT
+SCALAR
+2/2
+SCALAR
+0
+########
+
+# test scalar on tied hash when no SCALAR method has been given
+package TieScalar;
+
+sub TIEHASH {
+ my $pkg = shift;
+ bless { } => $pkg;
+}
+sub STORE {
+ $_[0]->{$_[1]} = $_[2];
+}
+sub FETCH {
+ $_[0]->{$_[1]}
+}
+sub CLEAR {
+ %{ $_[0] } = ();
+}
+sub FIRSTKEY {
+ my $a = keys %{ $_[0] };
+ print "FIRSTKEY\n";
+ each %{ $_[0] };
+}
+
+package main;
+tie my %h => "TieScalar";
+
+if (!%h) {
+ print "empty\n";
+} else {
+ print "not empty\n";
+}
+
+$h{key1} = "val1";
+print "not empty\n" if %h;
+print "not empty\n" if %h;
+print "-->\n";
+my ($k,$v) = each %h;
+print "<--\n";
+print "not empty\n" if %h;
+%h = ();
+print "empty\n" if ! %h;
+EXPECT
+FIRSTKEY
+empty
+FIRSTKEY
+not empty
+FIRSTKEY
+not empty
+-->
+FIRSTKEY
+<--
+not empty
+FIRSTKEY
+empty
+########
+sub TIESCALAR { bless {} }
+sub FETCH { my $x = 3.3; 1 if 0+$x; $x }
+tie $h, "main";
+print $h,"\n";
+EXPECT
+3.3
+########
+sub TIESCALAR { bless {} }
+sub FETCH { shift()->{i} ++ }
+tie $h, "main";
+print $h.$h;
+EXPECT
+01
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