1 files changed, 11 insertions, 1 deletions
diff --git a/t/op/glob.t b/t/op/glob.t
index 8bdf64f932..1dd806eb88 100755
--- a/t/op/glob.t
+++ b/t/op/glob.t
@@ -5,7 +5,7 @@ BEGIN {
     @INC = '../lib';
 }
 
-print "1..10\n";
+print "1..13\n";
 
 @oops = @ops = <op/*>;
 
@@ -60,3 +60,13 @@ $j=1; %j=(a=>1); @j=(1); local *j=*j; *j = sub{};
 print $j    == 1 ? "ok 8\n"  : "not ok 8\n";
 print $j{a} == 1 ? "ok 9\n"  : "not ok 9\n";
 print $j[0] == 1 ? "ok 10\n" : "not ok 10\n";
+
+# ... while ($var = glob(...)) should test definedness not truth
+
+# Create a file called "0"
+print open(F, ">0") ? "ok 11\n" : "not ok 11 # $!\n";
+my $ok = "not ok 12\n";
+$ok = "ok 12\n" while my $var = glob("0");
+print $ok;
+
+print unlink("0") ? "ok 13\n" : "not ok 13\n";