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 7a4721ad965c5d5804505104311ff63a379bc9bd..34c4b5983f11c15cc5ca9ea14ff7376ea3ed2a96 100644 (file)
--- a/t/lib/Variable/Magic/TestGlobalDestruction.pm
+++ b/t/lib/Variable/Magic/TestGlobalDestruction.pm
@@ -12,27 +12,85 @@ sub _diag {
  Test::More::diag(@_);
 }
 
-sub import {
- shift;
- my %args  = @_;
- my $level = $args{level} || 1;
+my $is_debugging;
+
+sub is_debugging_perl {
+ return $is_debugging if defined $is_debugging;
+
+ my $source;
 
- my $env_level = int($ENV{PERL_DESTRUCT_LEVEL} || 0);
- if ($env_level >= $level) {
-  my $is_debugging = do {
+ my $has_config_perl_v = do {
+  local $@;
+  eval { require Config::Perl::V; 1 };
+ };
+
+ if ($has_config_perl_v) {
+  $is_debugging = do {
    local $@;
-   eval {
-    require Config;
-    grep /-DDEBUGGING\b/, @Config::Config{qw<ccflags cppflags optimize>};
-   }
+   eval { Config::Perl::V::myconfig()->{build}{options}{DEBUGGING} };
   };
-  require Test::More;
-  if ($is_debugging) {
-   _diag("Global destruction level $env_level set by PERL_DESTRUCT_LEVEL (debugging perl)");
-   return;
+
+  if (defined $is_debugging) {
+   $source = "Config::Perl::V version $Config::Perl::V::VERSION";
+  }
+ }
+
+ unless (defined $is_debugging) {
+  $is_debugging = 0;
+  $source       = "%Config";
+
+  require Config;
+  my @fields = qw<ccflags cppflags optimize>;
+
+  for my $field (@fields) {
+   my $content = $Config::Config{$field};
+
+   while ($content =~ /(-DD?EBUGGING((?:=\S*)?))/g) {
+    my $extra = $2 || '';
+    if ($extra ne '=none') {
+     $is_debugging = 1;
+     $source       = "\$Config{$field} =~ /$1/";
+    }
+   }
+  }
+ }
+
+ my $maybe_is = $is_debugging ? "is" : "is NOT";
+ _diag("According to $source, this $maybe_is a debugging perl");
+
+ return $is_debugging;
+}
+
+sub import {
+ shift;
+ 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 $has_perl_destruct_level = do {
@@ -43,10 +101,14 @@ sub import {
    1;
   }
  };
+
  if ($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;