Reset the callbacks when the root interpreter is destroyed

[perl/modules/Lexical-Types.git] / t / 31-threads-teardown.t

diff --git a/t/31-threads-teardown.t b/t/31-threads-teardown.t
new file mode 100644 (file)
index 0000000..632293b
--- /dev/null
+++ b/t/31-threads-teardown.t
@@ -0,0 +1,62 @@
+#!perl
+
+use strict;
+use warnings;
+
+use Config qw/%Config/;
+
+BEGIN {
+ if (!$Config{useithreads}) {
+  require Test::More;
+  Test::More->import;
+  plan(skip_all => 'This perl wasn\'t built to support threads');
+ }
+}
+
+use threads;
+
+use Test::More;
+
+BEGIN {
+ require Lexical::Types;
+ if (Lexical::Types::LT_THREADSAFE()) {
+  plan tests => 1;
+  defined and diag "Using threads $_" for $threads::VERSION;
+ } else {
+  plan skip_all => 'This Lexical::Types isn\'t thread safe';
+ }
+}
+
+sub run_perl {
+ my $code = shift;
+
+ local %ENV;
+ system { $^X } $^X, '-T', map("-I$_", @INC), '-e', $code;
+}
+
+SKIP:
+{
+ skip 'Fails on 5.8.2 and lower' => 1 if $] <= 5.008002;
+
+ my $status = run_perl <<' RUN';
+  { package IntX; package IntY; package IntZ; }
+  my ($code, @expected);
+  sub cb {
+   my $e = shift(@expected) || q{DUMMY};
+   --$code if $_[0] eq $e;
+   ()
+  }
+  use threads;
+  $code = threads->create(sub {
+   $code = @expected = qw/IntX/;
+   eval q{use Lexical::Types as => \&cb; my IntX $x;}; die if $@;
+   return $code;
+  })->join;
+  $code += @expected = qw/IntZ/;
+  eval q{my IntY $y;}; die if $@;
+  eval q{use Lexical::Types as => \&cb; my IntZ $z;}; die if $@;
+  $code += 256 if $code < 0;
+  exit $code;
+ RUN
+ is $status, 0, 'loading the pragma in a thread and using it outside doesn\'t segfault';
+}