# See if caller() returns the correct warning mask
+sub show_bits
+{
+ my $in = shift;
+ my $out = '';
+ foreach (unpack('W*', $in)) {
+ $out .= sprintf('\x%02x', $_);
+ }
+ return $out;
+}
+
+sub check_bits
+{
+ local $Level = $Level + 2;
+ my ($got, $exp, $desc) = @_;
+ if (! ok($got eq $exp, $desc)) {
+ diag(' got: ' . show_bits($got));
+ diag('expected: ' . show_bits($exp));
+ }
+}
+
sub testwarn {
my $w = shift;
- is( (caller(0))[9], $w, "warnings match caller");
+ my $id = shift;
+ check_bits( (caller(0))[9], $w, "warnings match caller ($id)");
}
-# NB : extend the warning mask values below when new warnings are added
{
no warnings;
- BEGIN { is( ${^WARNING_BITS}, "\0" x 12, 'all bits off via "no warnings"' ) }
- testwarn("\0" x 12);
+ # Build the warnings mask dynamically
+ my ($default, $registered);
+ BEGIN {
+ for my $i (0..$warnings::LAST_BIT/2 - 1) {
+ vec($default, $i, 2) = 1;
+ }
+ $registered = $default;
+ vec($registered, $warnings::LAST_BIT/2, 2) = 1;
+ }
+ BEGIN { check_bits( ${^WARNING_BITS}, "\0" x 12, 'all bits off via "no warnings"' ) }
+ testwarn("\0" x 12, 'no bits');
use warnings;
- BEGIN { is( ${^WARNING_BITS}, "UUUUUUUUUUU\025", 'default bits on via "use warnings"' ); }
- BEGIN { testwarn("UUUUUUUUUUU\025", "#1"); }
+ BEGIN { check_bits( ${^WARNING_BITS}, $default,
+ 'default bits on via "use warnings"' ); }
+ BEGIN { testwarn($default, 'all'); }
# run-time :
# the warning mask has been extended by warnings::register
- testwarn("UUUUUUUUUUUU");
+ testwarn($registered, 'ahead of w::r');
use warnings::register;
- BEGIN { is( ${^WARNING_BITS}, "UUUUUUUUUUUU", 'warning bits on via "use warnings::register"' ) }
- testwarn("UUUUUUUUUUUU","#3");
+ BEGIN { check_bits( ${^WARNING_BITS}, $registered,
+ 'warning bits on via "use warnings::register"' ) }
+ testwarn($registered, 'following w::r');
}
$::testing_caller = 1;
-do './op/caller.pl';
+do './op/caller.pl' or die $@;