Add sanity checks for far, far distant dates.

[p5sagit/p5-mst-13.2.git] / t / op / recurse.t

diff --git a/t/op/recurse.t b/t/op/recurse.t
old mode 100755 (executable)
new mode 100644 (file)
index 374813c..2a0201a
--- a/t/op/recurse.t
+++ b/t/op/recurse.t
@@ -8,7 +8,7 @@ BEGIN {
     chdir 't' if -d 't';
     @INC = qw(. ../lib);
     require "test.pl";
-    plan(tests => 26);
+    plan(tests => 28);
 }
 
 use strict;
@@ -112,6 +112,20 @@ is(takeuchi($x, $y, $z), $z + 1, "takeuchi($x, $y, $z) == $z + 1");
     is(sillysum(1000), 1000*1001/2, "recursive sum of 1..1000");
 }
 
-
-
+# check ok for recursion depth > 65536
+{
+    my $r;
+    eval { 
+       $r = runperl(
+                    nolib => 1,
+                    stderr => 1,
+                    prog => q{$d=0; $e=1; sub c { ++$d; if ($d > 66000) { $e=0 } else { c(); c() unless $d % 32768 } --$d } c(); exit $e});
+    };
+  SKIP: {
+      skip("Out of memory -- increase your data/heap?", 2)
+         if $r =~ /Out of memory/i;
+      is($r, '', "64K deep recursion - no output expected");
+      is($?, 0, "64K deep recursion - no coredump expected");
+  }
+}