xref: /onnv-gate/usr/src/cmd/perl/5.8.4/distrib/t/op/hashwarn.t (revision 0:68f95e015346)
1#!./perl
2
3BEGIN {
4    chdir 't' if -d 't';
5    @INC = '../lib';
6}
7
8use strict;
9use warnings;
10
11use vars qw{ @warnings };
12
13BEGIN {
14    $SIG{'__WARN__'} = sub { push @warnings, @_ };
15    $| = 1;
16    print "1..9\n";
17}
18
19END { print "not ok\n# Uncaught warnings:\n@warnings\n" if @warnings }
20
21sub test ($$;$) {
22    my($num, $bool, $diag) = @_;
23    if ($bool) {
24	print "ok $num\n";
25	return;
26    }
27    print "not ok $num\n";
28    return unless defined $diag;
29    $diag =~ s/\Z\n?/\n/;			# unchomp
30    print map "# $num : $_", split m/^/m, $diag;
31}
32
33sub test_warning ($$$) {
34    my($num, $got, $expected) = @_;
35    my($pattern, $ok);
36    if (($pattern) = ($expected =~ m#^/(.+)/$#s) or
37	(undef, $pattern) = ($expected =~ m#^m([^\w\s])(.+)\1$#s)) {
38	    # it's a regexp
39	    $ok = ($got =~ /$pattern/);
40	    test $num, $ok, "Expected pattern /$pattern/, got '$got'\n";
41    } else {
42	$ok = ($got eq $expected);
43	test $num, $ok, "Expected string '$expected', got '$got'\n";
44    }
45#   print "# $num: $got\n";
46}
47
48my $odd_msg = '/^Odd number of elements in hash assignment/';
49my $odd_msg2 = '/^Odd number of elements in anonymous hash/';
50my $ref_msg = '/^Reference found where even-sized list expected/';
51
52{
53    my %hash = (1..3);
54    test_warning 1, shift @warnings, $odd_msg;
55
56    %hash = 1;
57    test_warning 2, shift @warnings, $odd_msg;
58
59    %hash = { 1..3 };
60    test_warning 3, shift @warnings, $odd_msg2;
61    test_warning 4, shift @warnings, $ref_msg;
62
63    %hash = [ 1..3 ];
64    test_warning 5, shift @warnings, $ref_msg;
65
66    %hash = sub { print "ok" };
67    test_warning 6, shift @warnings, $odd_msg;
68
69    {
70	# "Pseudo-hashes are deprecated" warnings tested in warnings/av
71	no warnings 'deprecated';
72
73	my $avhv = [{x=>1,y=>2}];
74	%$avhv = (x=>13,'y');
75	test_warning 7, shift @warnings, $odd_msg;
76
77	%$avhv = 'x';
78	test_warning 8, shift @warnings, $odd_msg;
79
80	$_ = { 1..10 };
81	test 9, ! @warnings, "Unexpected warning";
82    }
83}
84