X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=t%2Fop%2Fref.t;h=019634c3a2fbf07587d4fac2aa2b0c7bb408e39b;hb=e24631be6ac297b562086a055de17c5bd4247797;hp=56925177d1be8533b0857750f575f0fc72957ae5;hpb=d40103885dfef00fdafa10024e6e4d5e414d1403;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/t/op/ref.t b/t/op/ref.t
index 5692517..019634c 100755
--- a/t/op/ref.t
+++ b/t/op/ref.t
@@ -1,51 +1,63 @@
 #!./perl
 
-print "1..52\n";
+BEGIN {
+    chdir 't' if -d 't';
+    @INC = qw(. ../lib);
+}
+
+require 'test.pl';
+use strict qw(refs subs);
+
+plan (74);
 
 # Test glob operations.
 
-$bar = "ok 1\n";
-$foo = "ok 2\n";
+$bar = "one";
+$foo = "two";
 {
     local(*foo) = *bar;
-    print $foo;
+    is($foo, 'one');
 }
-print $foo;
+is ($foo, 'two');
 
-$baz = "ok 3\n";
-$foo = "ok 4\n";
+$baz = "three";
+$foo = "four";
 {
     local(*foo) = 'baz';
-    print $foo;
+    is ($foo, 'three');
 }
-print $foo;
+is ($foo, 'four');
 
-$foo = "ok 6\n";
+$foo = "global";
 {
     local(*foo);
-    print $foo;
-    $foo = "ok 5\n";
-    print $foo;
+    is ($foo, undef);
+    $foo = "local";
+    is ($foo, 'local');
 }
-print $foo;
+is ($foo, 'global');
 
+{
+    no strict 'refs';
 # Test fake references.
 
-$baz = "ok 7\n";
-$bar = 'baz';
-$foo = 'bar';
-print $$$foo;
+    $baz = "valid";
+    $bar = 'baz';
+    $foo = 'bar';
+    is ($$$foo, 'valid');
+}
 
 # Test real references.
 
 $FOO = \$BAR;
 $BAR = \$BAZ;
-$BAZ = "ok 8\n";
-print $$$FOO;
+$BAZ = "hit";
+is ($$$FOO, 'hit');
 
 # Test references to real arrays.
 
-@ary = (9,10,11,12);
+my $test = curr_test();
+@ary = ($test,$test+1,$test+2,$test+3);
 $ref[0] = \@a;
 $ref[1] = \@b;
 $ref[2] = \@c;
@@ -56,127 +68,136 @@ for $i (3,1,2,0) {
 print @a;
 print ${$ref[1]}[0];
 print @{$ref[2]}[0];
-print @{'d'};
+{
+    no strict 'refs';
+    print @{'d'};
+}
+curr_test($test+4);
 
 # Test references to references.
 
 $refref = \\$x;
-$x = "ok 13\n";
-print $$$refref;
+$x = "Good";
+is ($$$refref, 'Good');
 
 # Test nested anonymous lists.
 
 $ref = [[],2,[3,4,5,]];
-print scalar @$ref == 3 ? "ok 14\n" : "not ok 14\n";
-print $$ref[1] == 2 ? "ok 15\n" : "not ok 15\n";
-print ${$$ref[2]}[2] == 5 ? "ok 16\n" : "not ok 16\n";
-print scalar @{$$ref[0]} == 0 ? "ok 17\n" : "not ok 17\n";
+is (scalar @$ref, 3);
+is ($$ref[1], 2);
+is (${$$ref[2]}[2], 5);
+is (scalar @{$$ref[0]}, 0);
 
-print $ref->[1] == 2 ? "ok 18\n" : "not ok 18\n";
-print $ref->[2]->[0] == 3 ? "ok 19\n" : "not ok 19\n";
+is ($ref->[1], 2);
+is ($ref->[2]->[0], 3);
 
 # Test references to hashes of references.
 
 $refref = \%whatever;
 $refref->{"key"} = $ref;
-print $refref->{"key"}->[2]->[0] == 3 ? "ok 20\n" : "not ok 20\n";
+is ($refref->{"key"}->[2]->[0], 3);
 
 # Test to see if anonymous subarrays spring into existence.
 
 $spring[5]->[0] = 123;
 $spring[5]->[1] = 456;
 push(@{$spring[5]}, 789);
-print join(':',@{$spring[5]}) eq "123:456:789" ? "ok 21\n" : "not ok 21\n";
+is (join(':',@{$spring[5]}), "123:456:789");
 
 # Test to see if anonymous subhashes spring into existence.
 
 @{$spring2{"foo"}} = (1,2,3);
 $spring2{"foo"}->[3] = 4;
-print join(':',@{$spring2{"foo"}}) eq "1:2:3:4" ? "ok 22\n" : "not ok 22\n";
+is (join(':',@{$spring2{"foo"}}), "1:2:3:4");
 
 # Test references to subroutines.
 
-sub mysub { print "ok 23\n" }
-$subref = \&mysub;
-&$subref;
+{
+    my $called;
+    sub mysub { $called++; }
+    $subref = \&mysub;
+    &$subref;
+    is ($called, 1);
+}
 
 $subrefref = \\&mysub2;
-$$subrefref->("ok 24\n");
-sub mysub2 { print shift }
+is ($$subrefref->("GOOD"), "good");
+sub mysub2 { lc shift }
 
 # Test the ref operator.
 
-print ref $subref	eq CODE  ? "ok 25\n" : "not ok 25\n";
-print ref $ref		eq ARRAY ? "ok 26\n" : "not ok 26\n";
-print ref $refref	eq HASH  ? "ok 27\n" : "not ok 27\n";
+is (ref $subref, 'CODE');
+is (ref $ref, 'ARRAY');
+is (ref $refref, 'HASH');
 
 # Test anonymous hash syntax.
 
 $anonhash = {};
-print ref $anonhash	eq HASH  ? "ok 28\n" : "not ok 28\n";
-$anonhash2 = {FOO => BAR, ABC => XYZ,};
-print join('', sort values %$anonhash2) eq BARXYZ ? "ok 29\n" : "not ok 29\n";
+is (ref $anonhash, 'HASH');
+$anonhash2 = {FOO => 'BAR', ABC => 'XYZ',};
+is (join('', sort values %$anonhash2), 'BARXYZ');
 
 # Test bless operator.
 
 package MYHASH;
 
 $object = bless $main'anonhash2;
-print ref $object	eq MYHASH  ? "ok 30\n" : "not ok 30\n";
-print $object->{ABC}	eq XYZ     ? "ok 31\n" : "not ok 31\n";
+main::is (ref $object, 'MYHASH');
+main::is ($object->{ABC}, 'XYZ');
 
 $object2 = bless {};
-print ref $object2	eq MYHASH  ? "ok 32\n" : "not ok 32\n";
+main::is (ref $object2,	'MYHASH');
 
 # Test ordinary call on object method.
 
-&mymethod($object,33);
+&mymethod($object,"argument");
 
 sub mymethod {
     local($THIS, @ARGS) = @_;
     die 'Got a "' . ref($THIS). '" instead of a MYHASH'
-	unless ref $THIS eq MYHASH;
-    print $THIS->{FOO} eq BAR  ? "ok $ARGS[0]\n" : "not ok $ARGS[0]\n";
+	unless ref $THIS eq 'MYHASH';
+    main::is ($ARGS[0], "argument");
+    main::is ($THIS->{FOO}, 'BAR');
 }
 
 # Test automatic destructor call.
 
-$string = "not ok 34\n";
+$string = "bad";
 $object = "foo";
-$string = "ok 34\n";
+$string = "good";
 $main'anonhash2 = "foo";
 $string = "";
 
 DESTROY {
     return unless $string;
-    print $string;
+    main::is ($string, 'good');
 
     # Test that the object has not already been "cursed".
-    print ref shift ne HASH ? "ok 35\n" : "not ok 35\n";
+    main::isnt (ref shift, 'HASH');
 }
 
 # Now test inheritance of methods.
 
 package OBJ;
 
-@ISA = (BASEOBJ);
+@ISA = ('BASEOBJ');
 
-$main'object = bless {FOO => foo, BAR => bar};
+$main'object = bless {FOO => 'foo', BAR => 'bar'};
 
 package main;
 
 # Test arrow-style method invocation.
 
-print $object->doit("BAR") eq bar ? "ok 36\n" : "not ok 36\n";
+is ($object->doit("BAR"), 'bar');
 
 # Test indirect-object-style method invocation.
 
 $foo = doit $object "FOO";
-print $foo eq foo ? "ok 37\n" : "not ok 37\n";
+main::is ($foo, 'foo');
 
 sub BASEOBJ'doit {
     local $ref = shift;
-    die "Not an OBJ" unless ref $ref eq OBJ;
+    die "Not an OBJ" unless ref $ref eq 'OBJ';
     $ref->{shift()};
 }
 
@@ -184,34 +205,38 @@ package UNIVERSAL;
 @ISA = 'LASTCHANCE';
 
 package LASTCHANCE;
-sub foo { print $_[1] }
+sub foo { main::is ($_[1], 'works') }
 
 package WHATEVER;
-foo WHATEVER "ok 38\n";
+foo WHATEVER "works";
 
 #
 # test the \(@foo) construct
 #
 package main;
-@foo = (1,2,3);
+@foo = \(1..3);
 @bar = \(@foo);
 @baz = \(1,@foo,@bar);
-print @bar == 3 ? "ok 39\n" : "not ok 39\n";
-print grep(ref($_), @bar) == 3 ? "ok 40\n" : "not ok 40\n";
-print @baz == 3 ? "ok 41\n" : "not ok 41\n";
+is (scalar (@bar), 3);
+is (scalar grep(ref($_), @bar), 3);
+is (scalar (@baz), 3);
 
-my(@fuu) = (1,2,3);
+my(@fuu) = \(1..2,3);
 my(@baa) = \(@fuu);
 my(@bzz) = \(1,@fuu,@baa);
-print @baa == 3 ? "ok 42\n" : "not ok 42\n";
-print grep(ref($_), @baa) == 3 ? "ok 43\n" : "not ok 43\n";
-print @bzz == 3 ? "ok 44\n" : "not ok 44\n";
+is (scalar (@baa), 3);
+is (scalar grep(ref($_), @baa), 3);
+is (scalar (@bzz), 3);
 
-# test for proper destruction of lexical objects
+# also, it can't be an lvalue
+eval '\\($x, $y) = (1, 2);';
+like ($@, qr/Can\'t modify.*ref.*in.*assignment/);
 
-sub larry::DESTROY { print "# larry\nok 45\n"; }
-sub curly::DESTROY { print "# curly\nok 46\n"; }
-sub moe::DESTROY   { print "# moe\nok 47\n"; }
+# test for proper destruction of lexical objects
+$test = curr_test();
+sub larry::DESTROY { print "# larry\nok $test\n"; }
+sub curly::DESTROY { print "# curly\nok ", $test + 1, "\n"; }
+sub moe::DESTROY   { print "# moe\nok ", $test + 2, "\n"; }
 
 {
     my ($joe, @curly, %larry);
@@ -222,28 +247,155 @@ sub moe::DESTROY   { print "# moe\nok 47\n"; }
 }
 
 print "# left block\n";
+curr_test($test + 3);
 
 # another glob test
 
-$foo = "not ok 48";
+
+$foo = "garbage";
 { local(*bar) = "foo" }
-$bar = "ok 48";
+$bar = "glob 3";
 local(*bar) = *bar;
-print "$bar\n";
+is ($bar, "glob 3");
 
-$var = "ok 49";
+$var = "glob 4";
 $_   = \$var;
-print $$_,"\n";
+is ($$_, 'glob 4');
+
+
+# test if reblessing during destruction results in more destruction
+$test = curr_test();
+{
+    package A;
+    sub new { bless {}, shift }
+    DESTROY { print "# destroying 'A'\nok ", $test + 1, "\n" }
+    package _B;
+    sub new { bless {}, shift }
+    DESTROY { print "# destroying '_B'\nok $test\n"; bless shift, 'A' }
+    package main;
+    my $b = _B->new;
+}
+curr_test($test + 2);
+
+# test if $_[0] is properly protected in DESTROY()
+
+{
+    my $test = curr_test();
+    my $i = 0;
+    local $SIG{'__DIE__'} = sub {
+	my $m = shift;
+	if ($i++ > 4) {
+	    print "# infinite recursion, bailing\nnot ok $test\n";
+	    exit 1;
+        }
+	like ($m, qr/^Modification of a read-only/);
+    };
+    package C;
+    sub new { bless {}, shift }
+    DESTROY { $_[0] = 'foo' }
+    {
+	print "# should generate an error...\n";
+	my $c = C->new;
+    }
+    print "# good, didn't recurse\n";
+}
+
+# test if refgen behaves with autoviv magic
+{
+    my @a;
+    $a[1] = "good";
+    my $got;
+    for (@a) {
+	$got .= ${\$_};
+	$got .= ';';
+    }
+    is ($got, ";good;");
+}
+
+# This test is the reason for postponed destruction in sv_unref
+$a = [1,2,3];
+$a = $a->[1];
+is ($a, 2);
+
+# This test used to coredump. The BEGIN block is important as it causes the
+# op that created the constant reference to be freed. Hence the only
+# reference to the constant string "pass" is in $a. The hack that made
+# sure $a = $a->[1] would work didn't work with references to constants.
+
+
+foreach my $lexical ('', 'my $a; ') {
+  my $expect = "pass\n";
+  my $result = runperl (switches => ['-wl'], stderr => 1,
+    prog => $lexical . 'BEGIN {$a = \q{pass}}; $a = $$a; print $a');
+
+  is ($?, 0);
+  is ($result, $expect);
+}
+
+$test = curr_test();
+sub x::DESTROY {print "ok ", $test + shift->[0], "\n"}
+{ my $a1 = bless [3],"x";
+  my $a2 = bless [2],"x";
+  { my $a3 = bless [1],"x";
+    my $a4 = bless [0],"x";
+    567;
+  }
+}
+curr_test($test+4);
+
+is (runperl (switches=>['-l'],
+	     prog=> 'print 1; print qq-*$\*-;print 1;'),
+    "1\n*\n*\n1\n");
+
+# bug #21347
+
+runperl(prog => 'sub UNIVERSAL::AUTOLOAD { qr// } a->p' );
+is ($?, 0, 'UNIVERSAL::AUTOLOAD called when freeing qr//');
+
+runperl(prog => 'sub UNIVERSAL::DESTROY { warn } bless \$a, A', stderr => 1);
+is ($?, 0, 'warn called inside UNIVERSAL::DESTROY');
+
+
+# bug #22719
+
+runperl(prog => 'sub f { my $x = shift; *z = $x; } f({}); f();');
+is ($?, 0, 'coredump on typeglob = (SvRV && !SvROK)');
+
+# bug #27268: freeing self-referential typeglobs could trigger
+# "Attempt to free unreferenced scalar" warnings
+
+is (runperl(
+    prog => 'use Symbol;my $x=bless \gensym,"t"; print;*$$x=$x',
+    stderr => 1
+), '', 'freeing self-referential typeglob');
+
+# using a regex in the destructor for STDOUT segfaulted because the
+# REGEX pad had already been freed (ithreads build only). The
+# object is required to trigger the early freeing of GV refs to to STDOUT
+
+like (runperl(
+    prog => '$x=bless[]; sub IO::Handle::DESTROY{$_="bad";s/bad/ok/;print}',
+    stderr => 1
+      ), qr/^(ok)+$/, 'STDOUT destructor');
+
+# Bit of a hack to make test.pl happy. There are 3 more tests after it leaves.
+$test = curr_test();
+curr_test($test + 3);
+# test global destruction
+
+my $test1 = $test + 1;
+my $test2 = $test + 2;
 
 package FINALE;
 
 {
-    $ref3 = bless ["ok 52\n"];		# package destruction
-    my $ref2 = bless ["ok 51\n"];	# lexical destruction
-    local $ref1 = bless ["ok 50\n"];	# dynamic destruction
+    $ref3 = bless ["ok $test2\n"];	# package destruction
+    my $ref2 = bless ["ok $test1\n"];	# lexical destruction
+    local $ref1 = bless ["ok $test\n"];	# dynamic destruction
     1;					# flush any temp values on stack
 }
 
 DESTROY {
     print $_[0][0];
 }
+