highlight: initial wrapper and PSGI service

I'll probably expose the PSGI service for cgit;
but it could be useful to others as well.

1 files changed, 54 insertions, 0 deletions

diff --git a/t/hl_mod.t b/t/hl_mod.t
new file mode 100644
index 00000000..b8b8eb9d
--- /dev/null
+++ b/t/hl_mod.t
@@ -0,0 +1,54 @@
+#!/usr/bin/perl -w
+# Copyright (C) 2019 all contributors <meta@public-inbox.org>
+# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
+use strict;
+use warnings;
+use Test::More;
+eval { require highlight } or
+        plan skip_all => 'failed to load highlight.pm';
+use_ok 'PublicInbox::HlMod';
+my $hls = PublicInbox::HlMod->new;
+ok($hls, 'initialized OK');
+is($hls->_shebang2lang(\"#!/usr/bin/perl -w\n"), 'perl', 'perl shebang OK');
+is($hls->{-ext2lang}->{'pm'}, 'perl', '.pm suffix OK');
+is($hls->{-ext2lang}->{'pl'}, 'perl', '.pl suffix OK');
+is($hls->_path2lang('Makefile'), 'make', 'Makefile OK');
+my $str = do { local $/; open(my $fh, __FILE__); <$fh> };
+my $orig = $str;
+
+{
+        my $ref = $hls->do_hl(\$str, 'foo.perl');
+        is(ref($ref), 'SCALAR', 'got a scalar reference back');
+        like($$ref, qr/I can see you!/, 'we can see ourselves in output');
+
+        use PublicInbox::Spawn qw(which);
+        if (eval { require IPC::Run } && which('w3m')) {
+                require File::Temp;
+                my $cmd = [ qw(w3m -T text/html -dump -config /dev/null) ];
+                my ($out, $err) = ('', '');
+                IPC::Run::run($cmd, $ref, \$out, \$err);
+                # expand tabs and normalize whitespace,
+                # w3m doesn't preserve tabs
+                $orig =~ s/\t/        /gs;
+                $out =~ s/\s*\z//sg;
+                $orig =~ s/\s*\z//sg;
+                is($out, $orig, 'w3m output matches');
+        }
+}
+
+my $nr = $ENV{TEST_MEMLEAK};
+if ($nr && -r "/proc/$$/status") {
+        my $fh;
+        open $fh, '<', "/proc/$$/status";
+        diag "starting at memtest at ".join('', grep(/VmRSS:/, <$fh>));
+        PublicInbox::HlMod->new->do_hl(\$orig) for (1..$nr);
+        open $fh, '<', "/proc/$$/status";
+        diag "creating $nr instances: ".join('', grep(/VmRSS:/, <$fh>));
+        my $hls = PublicInbox::HlMod->new;
+        $hls->do_hl(\$orig) for (1..$nr);
+        $hls = undef;
+        open $fh, '<', "/proc/$$/status";
+        diag "reused instance $nr times: ".join('', grep(/VmRSS:/, <$fh>));
+}
+
+done_testing;