Mojolicous expects wrong results

t-mojolicoius-exception_lite_app.t

use Mojolicious::Lite;
use Test::Mojo;
use Test::More;

hook before_render => sub {
  my ($c, $args) = @_;
  @$args{qw(text format)} = ($args->{exception}, 'txt')
    if ($args->{template} // '') eq 'exception' && $c->accepts('txt');
};


get '/dead_action' => sub { die "dead action!\n" };

my $t = Test::Mojo->new;

# Because client accepts nothing Mojolicious fallback to 'txt':
# https://github.com/kraih/mojo/blob/master/lib/Mojolicious/Renderer.pm#L37
$t->get_ok('/dead_action')->status_is(500)
  ->content_type_is('text/plain;charset=UTF-8')
  ->content_is("dead action!\n");

done_testing;

__END__
ok 1 - GET /dead_action
ok 2 - 500 Internal Server Error
not ok 3 - Content-Type: text/plain;charset=UTF-8
#   Failed test 'Content-Type: text/plain;charset=UTF-8'
#   at t/mojolicious/exception_lite_app2.t line 18.
#          got: 'text/html;charset=UTF-8'
#     expected: 'text/plain;charset=UTF-8'
not ok 4 - exact match for content
#   Failed test 'exact match for content'
#   at t/mojolicious/exception_lite_app2.t line 18.
#          got: 'dead action!
#
# '
#     expected: 'dead action!
# '
1..4
# Looks like you failed 2 tests of 4.