extra tests for t/op/range.t (was Re: [perl #53554] Range

Message-ID: <20080505200332.pke1i5vu7gos8kc0@horde.wizbit.be>

p4raw-id: //depot/perl@33791

diff --git a/t/op/range.t b/t/op/range.t
index 6759f88..214c168 100755 (executable)
--- a/t/op/range.t
+++ b/t/op/range.t
@@ -9,7 +9,7 @@ require 'test.pl';
 
 use Config;
 
-plan (115);
+plan (135);
 
 is(join(':',1..5), '1:2:3:4:5');
 
@@ -341,4 +341,66 @@ foreach my $ii (~0, ~0+1, ~0+(~0>>4)) {
     ok($@, 'Lower bound rejected: ' . -$ii);
 }
 
+# double/tripple magic tests
+sub TIESCALAR { bless { value => $_[1], orig => $_[1] } }
+sub STORE { $_[0]{store}++; $_[0]{value} = $_[1] }
+sub FETCH { $_[0]{fetch}++; $_[0]{value} }
+sub stores { tied($_[0])->{value} = tied($_[0])->{orig};
+             delete(tied($_[0])->{store}) || 0 }
+sub fetches { delete(tied($_[0])->{fetch}) || 0 }
+    
+tie $x, "main", 6;
+
+my @foo;
+@foo = 4 .. $x;
+is(scalar @foo, 3);
+is("@foo", "4 5 6");
+{
+  local $TODO = "test for double magic with range operator";
+  is(fetches($x), 1);
+}
+is(stores($x), 0);
+
+@foo = $x .. 8;
+is(scalar @foo, 3);
+is("@foo", "6 7 8");
+{
+  local $TODO = "test for double magic with range operator";
+  is(fetches($x), 1);
+}
+is(stores($x), 0);
+
+@foo = $x .. $x + 1;
+is(scalar @foo, 2);
+is("@foo", "6 7");
+{
+  local $TODO = "test for double magic with range operator";
+  is(fetches($x), 2);
+}
+is(stores($x), 0);
+
+@foo = ();
+for (4 .. $x) {
+  push @foo, $_;
+}
+is(scalar @foo, 3);
+is("@foo", "4 5 6");
+{
+  local $TODO = "test for double magic with range operator";
+  is(fetches($x), 1);
+}
+is(stores($x), 0);
+
+@foo = ();
+for (reverse 4 .. $x) {
+  push @foo, $_;
+}
+is(scalar @foo, 3);
+is("@foo", "6 5 4");
+{
+  local $TODO = "test for double magic with range operator";
+  is(fetches($x), 1);
+}
+is(stores($x), 0);
+
 # EOF