Add regression tests to lib/charnames.t to ensure that unicore/Names.pl

is 100% 7 bit ASCII.

p4raw-id: //depot/perl@27085

1 files changed, 17 insertions, 1 deletions

diff --git a/lib/charnames.t b/lib/charnames.t
index c53f54a067..efb66082b6 100644
--- a/lib/charnames.t
+++ b/lib/charnames.t
@@ -15,7 +15,7 @@ require File::Spec;
 
 $| = 1;
 
-print "1..74\n";
+print "1..76\n";
 
 use charnames ':full';
 
@@ -334,6 +334,22 @@ eval "use charnames ':full';";
 print "not " unless $_ eq 'foobar';
 print "ok 74\n";
 
+# Unicode slowdown noted by Phil Pennock, traced to a bug fix in index
+# SADAHIRO Tomoyuki's suggestion is to ensure that the UTF-8ness of both
+# arguments are indentical before calling index.
+# To do this can take advantage of the fact that unicore/Name.pl is 7 bit
+# (or at least should be). So assert that that it's true here.
+
+my $names = do "unicore/Name.pl";
+print defined $names ? "ok 75\n" : "not ok 75\n";
+if (ord('A') == 65) { # as on ASCII or UTF-8 machines
+  my $non_ascii = $names =~ tr/\0-\177//c;
+  print $non_ascii ? "not ok 76 # $non_ascii\n" : "ok 76\n";
+} else {
+  print "ok 76\n";
+}
+
+
 __END__
 # unsupported pragma
 use charnames ":scoobydoo";