Implement flexible fake backend

Change-Id: Icff0d3b8e1a82c7e459dfac6417f59502f0eb099
diff --git a/t/fixture.t b/t/fixture.t
index 15e4a87..3fd0bd3 100644
--- a/t/fixture.t
+++ b/t/fixture.t
@@ -6,11 +6,11 @@
 # Get the fixture path
 my $fixtures_path = path(Mojo::File->new(__FILE__)->dirname, 'fixtures');
 
-my $t = Test::Mojo->new($fixtures_path->child('query_backend.pl'));
+my $t = Test::Mojo->new($fixtures_path->child('fake_backend.pl'));
 
 $t->get_ok('/')
   ->status_is(200)
-  ->content_is('Query fake server available');
+  ->content_is('Fake server available');
 
 $t->get_ok('/search?ql=cosmas3')
   ->status_is(400)
@@ -20,6 +20,7 @@
 
 $t->get_ok('/search?q=server_fail')
   ->status_is(500)
+  ->text_is('#error', '')
   ->content_like(qr!Oooops!)
   ;
 
@@ -31,6 +32,6 @@
   ->json_is('/errors/1/1','Could not parse query >>> [orth=das <<<.')
   ;
 
-
 done_testing;
 __END__
+