freebsd-dev/contrib/perl5/t/op/hashwarn.t

72 lines
1.6 KiB
Perl
Executable File

#!./perl
BEGIN {
chdir 't' if -d 't';
@INC = '../lib';
}
use strict;
use vars qw{ @warnings };
BEGIN {
$^W |= 1; # Insist upon warnings
# ...and save 'em as we go
$SIG{'__WARN__'} = sub { push @warnings, @_ };
$| = 1;
print "1..7\n";
}
END { print "not ok\n# Uncaught warnings:\n@warnings\n" if @warnings }
sub test ($$;$) {
my($num, $bool, $diag) = @_;
if ($bool) {
print "ok $num\n";
return;
}
print "not ok $num\n";
return unless defined $diag;
$diag =~ s/\Z\n?/\n/; # unchomp
print map "# $num : $_", split m/^/m, $diag;
}
sub test_warning ($$$) {
my($num, $got, $expected) = @_;
my($pattern, $ok);
if (($pattern) = ($expected =~ m#^/(.+)/$#s) or
(undef, $pattern) = ($expected =~ m#^m([^\w\s])(.+)\1$#s)) {
# it's a regexp
$ok = ($got =~ /$pattern/);
test $num, $ok, "Expected pattern /$pattern/, got '$got'\n";
} else {
$ok = ($got eq $expected);
test $num, $ok, "Expected string '$expected', got '$got'\n";
}
# print "# $num: $got\n";
}
my $odd_msg = '/^Odd number of elements in hash/';
my $ref_msg = '/^Reference found where even-sized list expected/';
{
my %hash = (1..3);
test_warning 1, shift @warnings, $odd_msg;
%hash = 1;
test_warning 2, shift @warnings, $odd_msg;
%hash = { 1..3 };
test_warning 3, shift @warnings, $odd_msg;
test_warning 4, shift @warnings, $ref_msg;
%hash = [ 1..3 ];
test_warning 5, shift @warnings, $ref_msg;
%hash = sub { print "ok" };
test_warning 6, shift @warnings, $odd_msg;
$_ = { 1..10 };
test 7, ! @warnings, "Unexpected warning";
}