Check the context of for/grep/map.

p4raw-id: //depot/perl@21230

diff --git a/t/op/grep.t b/t/op/grep.t
index 5a7c7c6..4696224 100755 (executable)
--- a/t/op/grep.t
+++ b/t/op/grep.t
@@ -4,7 +4,7 @@
 # grep() and map() tests
 #
 
-print "1..34\n";
+print "1..37\n";
 
 $test = 1;
 
@@ -140,6 +140,25 @@ sub ok {
         map {"${_}x"} @_;
     };
     ok join("-",add_an_x(1,2,3,4)), "1x-2x-3x-4x";
+    $test++;
 }
 
+{
+    my $gimme;
+
+    sub gimme {
+       my $want = wantarray();
+       if (defined $want) {
+           $gimme = $want ? 'list' : 'scalar';
+       } else {
+           $gimme = 'void';
+       }
+    }
+
+    my @list = 0..9;
+
+    undef $gimme; gimme for @list;      ok($gimme, 'void');   $test++;
+    undef $gimme; grep { gimme } @list; ok($gimme, 'scalar'); $test++;
+    undef $gimme; map { gimme } @list;  ok($gimme, 'list');   $test++;
+}