fixes due to new Mojo::Renderer error handling, tests

Signed-off-by: Ask Bjørn Hansen <ask@develooper.com>

t/render.t

@@ -0,0 +1,23 @@
+#!perl
+
+use strict;
+use warnings;
+
+use Test::More tests => 5;
+
+use Mojo::Transaction;
+
+use_ok('MojoX::Renderer::TT');
+
+my $mt = MojoX::Renderer::TT->new;
+
+my $output;
+my $rv;
+
+$rv = $mt->(undef, 't/render/template.tt2', \$output);
+is($rv, 1);
+is($output, "4\n");
+
+$rv = $mt->(undef, 't/render/template-error.tt2', \$output);
+is($rv, 0);
+ok($output);