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|
#!./perl
# The tests are in a separate file 't/re/re_tests'.
# Each line in that file is a separate test.
# There are five columns, separated by tabs.
#
# Column 1 contains the pattern, optionally enclosed in C<''>.
# Modifiers can be put after the closing C<'>.
#
# Column 2 contains the string to be matched.
#
# Column 3 contains the expected result:
# y expect a match
# n expect no match
# c expect an error
# T the test is a TODO (can be combined with y/n/c)
# M skip test on miniperl (combine with y/n/c/T)
# B test exposes a known bug in Perl, should be skipped
# b test exposes a known bug in Perl, should be skipped if noamp
# t test exposes a bug with threading, TODO if qr_embed_thr
#
# Columns 4 and 5 are used only if column 3 contains C<y> or C<c>.
#
# Column 4 contains a string, usually C<$&>.
#
# Column 5 contains the expected result of double-quote
# interpolating that string after the match, or start of error message.
#
# Column 6, if present, contains a reason why the test is skipped.
# This is printed with "skipped", for harness to pick up.
#
# \n in the tests are interpolated, as are variables of the form ${\w+}.
#
# Blanks lines are treated as PASSING tests to keep the line numbers
# linked to the test number.
#
# If you want to add a regular expression test that can't be expressed
# in this format, don't add it here: put it in re/pat.t instead.
#
# Note that the inputs get passed on as "m're'", so the re bypasses the lexer.
# This means this file cannot be used for testing anything that the lexer
# handles; in 5.12 this means just \N{NAME} and \N{U+...}.
#
# Note that columns 2,3 and 5 are all enclosed in double quotes and then
# evalled; so something like a\"\x{100}$1 has length 3+length($1).
my ($file, $iters);
BEGIN {
$iters = shift || 1; # Poor man performance suite, 10000 is OK.
# Do this open before any chdir
$file = shift;
if (defined $file) {
open TESTS, $file or die "Can't open $file";
}
chdir 't' if -d 't';
@INC = '../lib';
}
sub _comment {
return map { /^#/ ? "$_\n" : "# $_\n" }
map { split /\n/ } @_;
}
use strict;
use warnings FATAL=>"all";
use vars qw($bang $ffff $nulnul); # used by the tests
use vars qw($qr $skip_amp $qr_embed $qr_embed_thr); # set by our callers
if (!defined $file) {
open TESTS, 're/re_tests' or die "Can't open re/re_tests: $!";
}
my @tests = <TESTS>;
close TESTS;
$bang = sprintf "\\%03o", ord "!"; # \41 would not be portable.
$ffff = chr(0xff) x 2;
$nulnul = "\0" x 2;
my $OP = $qr ? 'qr' : 'm';
$| = 1;
printf "1..%d\n# $iters iterations\n", scalar @tests;
my $test;
TEST:
foreach (@tests) {
$test++;
if (!/\S/ || /^\s*#/ || /^__END__$/) {
print "ok $test # (Blank line or comment)\n";
if (/#/) { print $_ };
next;
}
chomp;
s/\\n/\n/g;
my ($pat, $subject, $result, $repl, $expect, $reason) = split(/\t/,$_,6);
$reason = '' unless defined $reason;
my $input = join(':',$pat,$subject,$result,$repl,$expect);
# the double '' below keeps simple syntax highlighters from going crazy
$pat = "'$pat'" unless $pat =~ /^[:''\/]/;
$pat =~ s/(\$\{\w+\})/$1/eeg;
$pat =~ s/\\n/\n/g;
$subject = eval qq("$subject"); die $@ if $@;
$expect = eval qq("$expect"); die $@ if $@;
$expect = $repl = '-' if $skip_amp and $input =~ /\$[&\`\']/;
my $todo_qr = $qr_embed_thr && ($result =~ s/t//);
my $skip = ($skip_amp ? ($result =~ s/B//i) : ($result =~ s/B//));
++$skip if $result =~ s/M// && !defined &DynaLoader::boot_DynaLoader;
$reason = 'skipping $&' if $reason eq '' && $skip_amp;
$result =~ s/B//i unless $skip;
my $todo= $result =~ s/T// ? " # TODO" : "";
for my $study ('', 'study $subject', 'utf8::upgrade($subject)',
'utf8::upgrade($subject); study $subject') {
# Need to make a copy, else the utf8::upgrade of an already studied
# scalar confuses things.
my $subject = $subject;
my $c = $iters;
my ($code, $match, $got);
if ($repl eq 'pos') {
$code= <<EOFCODE;
$study;
pos(\$subject)=0;
\$match = ( \$subject =~ m${pat}g );
\$got = pos(\$subject);
EOFCODE
}
elsif ($qr_embed) {
$code= <<EOFCODE;
my \$RE = qr$pat;
$study;
\$match = (\$subject =~ /(?:)\$RE(?:)/) while \$c--;
\$got = "$repl";
EOFCODE
}
elsif ($qr_embed_thr) {
$code= <<EOFCODE;
# Can't run the match in a subthread, but can do this and
# clone the pattern the other way.
my \$RE = threads->new(sub {qr$pat})->join();
$study;
\$match = (\$subject =~ /(?:)\$RE(?:)/) while \$c--;
\$got = "$repl";
EOFCODE
}
else {
$code= <<EOFCODE;
$study;
\$match = (\$subject =~ $OP$pat) while \$c--;
\$got = "$repl";
EOFCODE
}
#$code.=qq[\n\$expect="$expect";\n];
#use Devel::Peek;
#die Dump($code) if $pat=~/\\h/ and $subject=~/\x{A0}/;
{
# Probably we should annotate specific tests with which warnings
# categories they're known to trigger, and hence should be
# disabled just for that test
no warnings qw(uninitialized regexp);
eval $code;
}
chomp( my $err = $@ );
if ($result eq 'c') {
if ($err !~ m!^\Q$expect!) { print "not ok $test$todo (compile) $input => '$err'\n"; next TEST }
last; # no need to study a syntax error
}
elsif ( $skip ) {
print "ok $test # skipped", length($reason) ? " $reason" : '', "\n";
next TEST;
}
elsif ( $todo_qr ) {
print "not ok $test # TODO", length($reason) ? " - $reason" : '', "\n";
next TEST;
}
elsif ($@) {
print "not ok $test$todo $input => error '$err'\n", _comment("$code\n$@\n"); next TEST;
}
elsif ($result =~ /^n/) {
if ($match) { print "not ok $test$todo ($study) $input => false positive\n"; next TEST }
}
else {
if (!$match || $got ne $expect) {
eval { require Data::Dumper };
if ($@) {
print "not ok $test$todo ($study) $input => '$got', match=$match\n", _comment("$code\n");
}
else { # better diagnostics
my $s = Data::Dumper->new([$subject],['subject'])->Useqq(1)->Dump;
my $g = Data::Dumper->new([$got],['got'])->Useqq(1)->Dump;
print "not ok $test$todo ($study) $input => '$got', match=$match\n", _comment("$s\n$g\n$code\n");
}
next TEST;
}
}
}
print "ok $test$todo\n";
}
1;
|
