}, 'known addresses populated');
}
+my @invalid = (
+ # git rejects this because it locks refnames, but we don't have
+ # this problem with inbox names:
+ # 'inbox.lock',
+
+ # git rejects these:
+ '', '..', '.', 'stash@{9}', 'inbox.', '^caret', '~tilde',
+ '*asterisk', 's p a c e s', ' leading-space', 'trailing-space ',
+ 'question?', 'colon:', '[square-brace]', "\fformfeed",
+ "\0zero", "\bbackspace",
+
+);
+
+require Data::Dumper;
+for my $s (@invalid) {
+ my $d = Data::Dumper->new([$s])->Terse(1)->Indent(0)->Dump;
+ ok(!PublicInbox::Config::valid_inbox_name($s), "$d name rejected");
+}
+
+# obviously-valid examples
+my @valid = qw(a a@example a@example.com);
+
+# Rejecting more was considered, but then it dawned on me that
+# people may intentionally use inbox names which are not URL-friendly
+# to prevent the PSGI interface from displaying them...
+# URL-unfriendly
+# '<', '>', '%', '#', '?', '&', '(', ')',
+
+# maybe these aren't so bad, they're common in Message-IDs, even:
+# '!', '$', '=', '+'
+push @valid, qw[bang! ca$h less< more> 1% (parens) &more eql= +plus], '#hash';
+for my $s (@valid) {
+ my $d = Data::Dumper->new([$s])->Terse(1)->Indent(0)->Dump;
+ ok(PublicInbox::Config::valid_inbox_name($s), "$d name accepted");
+}
+
done_testing();