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#!./perl
# The tests are in a separate file 't/op/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
#
# Columns 4 and 5 are used only of column 3 contains C<y>.
#
# Column 4 contains a string, usually C<$&>.
#
# Column 5 contains the expected result of double-quote
# interpolating that string after the match.
open(TESTS,'op/re_tests') || open(TESTS,'t/op/re_tests')
|| die "Can't open re_tests";
while (<TESTS>) { }
$numtests = $.;
seek(TESTS,0,0);
$. = 0;
$| = 1;
print "1..$numtests\n";
TEST:
while (<TESTS>) {
($pat, $subject, $result, $repl, $expect) = split(/[\t\n]/,$_);
$input = join(':',$pat,$subject,$result,$repl,$expect);
$pat = "'$pat'" unless $pat =~ /^'/;
for $study ("", "study \$subject") {
eval "$study; \$match = (\$subject =~ m$pat); \$got = \"$repl\";";
if ($result eq 'c') {
if ($@ eq '') { print "not ok $.\n"; next TEST }
last; # no need to study a syntax error
}
elsif ($result eq 'n') {
if ($match) { print "not ok $. $input => $got\n"; next TEST }
}
else {
if (!$match || $got ne $expect) {
print "not ok $. $input => $got\n";
next TEST;
}
}
}
print "ok $.\n";
}
close(TESTS);
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