3 # The tests are in a separate file 't/op/re_tests'.
4 # Each line in that file is a separate test.
5 # There are five columns, separated by tabs.
7 # Column 1 contains the pattern, optionally enclosed in C<''>.
8 # Modifiers can be put after the closing C<'>.
10 # Column 2 contains the string to be matched.
12 # Column 3 contains the expected result:
16 # B test exposes a known bug in Perl, should be skipped
17 # b test exposes a known bug in Perl, should be skipped if noamp
19 # Columns 4 and 5 are used only if column 3 contains C<y> or C<c>.
21 # Column 4 contains a string, usually C<$&>.
23 # Column 5 contains the expected result of double-quote
24 # interpolating that string after the match, or start of error message.
26 # Column 6, if present, contains a reason why the test is skipped.
27 # This is printed with "skipped", for harness to pick up.
29 # \n in the tests are interpolated, as are variables of the form ${\w+}.
31 # Blanks lines are treated as PASSING tests to keep the line numbers
32 # linked to the test number.
34 # If you want to add a regular expression test that can't be expressed
35 # in this format, don't add it here: put it in op/pat.t instead.
37 # Note that columns 2,3 and 5 are all enclosed in double quotes and then
38 # evalled; so something like a\"\x{100}$1 has length 3+length($1).
42 $iters = shift || 1; # Poor man performance suite, 10000 is OK.
44 # Do this open before any chdir
47 open TESTS, $file or die "Can't open $file";
55 use warnings FATAL=>"all";
56 use vars qw($iters $numtests $bang $ffff $nulnul $OP);
57 use vars qw($qr $skip_amp $qr_embed); # set by our callers
61 open(TESTS,'op/re_tests') || open(TESTS,'t/op/re_tests')
62 || open(TESTS,':op:re_tests') || die "Can't open re_tests";
69 $bang = sprintf "\\%03o", ord "!"; # \41 would not be portable.
70 $ffff = chr(0xff) x 2;
72 $OP = $qr ? 'qr' : 'm';
75 printf "1..%d\n# $iters iterations\n", scalar @tests;
80 if (!/\S/ || /^\s*#/) {
81 print "ok $test # (Blank line or comment)\n";
82 if (/\S/) { print $_ };
87 my ($pat, $subject, $result, $repl, $expect, $reason) = split(/\t/,$_,6);
88 $reason = '' unless defined $reason;
89 my $input = join(':',$pat,$subject,$result,$repl,$expect);
90 $pat = "'$pat'" unless $pat =~ /^[:'\/]/;
91 $pat =~ s/(\$\{\w+\})/$1/eeg;
93 $subject = eval qq("$subject"); die $@ if $@;
94 $expect = eval qq("$expect"); die $@ if $@;
95 $expect = $repl = '-' if $skip_amp and $input =~ /\$[&\`\']/;
96 my $skip = ($skip_amp ? ($result =~ s/B//i) : ($result =~ s/B//));
97 $reason = 'skipping $&' if $reason eq '' && $skip_amp;
98 $result =~ s/B//i unless $skip;
100 for my $study ('', 'study $subject', 'utf8::upgrade($subject)',
101 'utf8::upgrade($subject); study $subject') {
102 # Need to make a copy, else the utf8::upgrade of an alreay studied
103 # scalar confuses things.
104 my $subject = $subject;
106 my ($code, $match, $got);
107 if ($repl eq 'pos') {
111 \$match = ( \$subject =~ m${pat}g );
112 \$got = pos(\$subject);
119 \$match = (\$subject =~ /(?:)\$RE(?:)/) while \$c--;
126 \$match = (\$subject =~ $OP$pat) while \$c--;
131 # Probably we should annotate specific tests with which warnings
132 # categories they're known to trigger, and hence should be
133 # disabled just for that test
134 no warnings qw(uninitialized regexp);
137 chomp( my $err = $@ );
138 if ($result eq 'c') {
139 if ($err !~ m!^\Q$expect!) { print "not ok $test (compile) $input => `$err'\n"; next TEST }
140 last; # no need to study a syntax error
143 print "ok $test # skipped", length($reason) ? " $reason" : '', "\n";
147 print "not ok $test $input => error `$err'\n$code\n$@\n"; next TEST;
149 elsif ($result eq 'n') {
150 if ($match) { print "not ok $test ($study) $input => false positive\n"; next TEST }
153 if (!$match || $got ne $expect) {
154 eval { require Data::Dumper };
156 print "not ok $test ($study) $input => `$got', match=$match\n$code\n";
158 else { # better diagnostics
159 my $s = Data::Dumper->new([$subject],['subject'])->Useqq(1)->Dump;
160 my $g = Data::Dumper->new([$got],['got'])->Useqq(1)->Dump;
161 print "not ok $test ($study) $input => `$got', match=$match\n$s\n$g\n$code\n";