Set PERL_DESTRUCT_LEVEL through the environment variable on debugging perls

[perl/modules/Variable-Magic.git] / t / lib / Variable / Magic / TestGlobalDestruction.pm

diff --git a/t/lib/Variable/Magic/TestGlobalDestruction.pm b/t/lib/Variable/Magic/TestGlobalDestruction.pm
index ca7997fff93b96fa4831f7c6106ea52aa5efacf4..34c4b5983f11c15cc5ca9ea14ff7376ea3ed2a96 100644 (file)
--- a/t/lib/Variable/Magic/TestGlobalDestruction.pm
+++ b/t/lib/Variable/Magic/TestGlobalDestruction.pm
@@ -63,19 +63,34 @@ sub is_debugging_perl {
 
 sub import {
  shift;
- my %args  = @_;
- my $level = $args{level} || 1;
-
- my $env_level = int($ENV{PERL_DESTRUCT_LEVEL} || 0);
- if ($env_level >= $level) {
-  my $is_debugging = is_debugging_perl();
-  require Test::More;
-  if ($is_debugging) {
-   _diag("Global destruction level $env_level set by PERL_DESTRUCT_LEVEL (debugging perl)");
-   return;
+ my %args = @_;
+
+ my $level = $args{level};
+ $level    = 1 unless defined $level;
+
+ if ("$]" < 5.013_004 and not $ENV{PERL_FORCE_TEST_THREADS}) {
+  _diag("perl 5.13.4 required to safely test global destruction");
+  return 0;
+ }
+
+ my $env_level = $ENV{PERL_DESTRUCT_LEVEL};
+ if (defined $env_level) {
+  no warnings 'numeric';
+  $env_level = int $env_level;
+ }
+
+ my $is_debugging = is_debugging_perl();
+ if ($is_debugging) {
+  if (defined $env_level) {
+   _diag("Global destruction level $env_level set by PERL_DESTRUCT_LEVEL (environment)");
+   return ($env_level >= $level) ? 1 : 0;
   } else {
-   _diag("PERL_DESTRUCT_LEVEL is set to $env_level, but this perl doesn't seem to have debugging enabled");
+   $ENV{PERL_DESTRUCT_LEVEL} = $level;
+   _diag("Global destruction level $level set by PERL_DESTRUCT_LEVEL (forced)");
+   return 1;
   }
+ } elsif (defined $env_level) {
+  _diag("PERL_DESTRUCT_LEVEL is set to $env_level, but this perl doesn't seem to have debugging enabled, ignoring");
  }
 
  my $has_perl_destruct_level = do {
@@ -86,10 +101,14 @@ sub import {
    1;
   }
  };
+
  if ($has_perl_destruct_level) {
   _diag("Global destruction level $level set by Perl::Destruct::Level");
-  return;
+  return 1;
  }
+
+ _diag("Not testing global destruction");
+ return 0;
 }
 
 1;