use Test::More;
my $cls = 'PublicInbox::LeiExternal';
require_ok $cls;
-my $canon = $cls->can('_canonicalize');
+my $canon = $cls->can('ext_canonicalize');
my $exp = 'https://example.com/my-inbox/';
is($canon->('https://example.com/my-inbox'), $exp, 'trailing slash added');
is($canon->('https://example.com/my-inbox//'), $exp, 'trailing slash removed');