[Test] Add test for hostname map

test/functional/cases/102_maps.robot

@@ -97,3 +97,11 @@ MAP - UTF
 MAP - UTF MISS
   ${result} =  Scan Message With Rspamc  ${MESSAGE}
   Check Rspamc  ${result}  HEADER_MAP  inverse=1  rc_noinverse=1
+
+MAP - HOSTNAME
+  ${result} =  Scan Message With Rspamc  ${MESSAGE}  --ip  127.0.0.1  --hostname  example.com
+  Check Rspamc  ${result}  HOSTNAME_MAP
+
+MAP - HOSTNAME MISS
+  ${result} =  Scan Message With Rspamc  ${MESSAGE}  --ip  127.0.0.1  --hostname  rspamd.com
+  Check Rspamc  ${result}  HOSTNAME_MAP  inverse=1  rc_noinverse=1

test/functional/configs/maps.conf

@@ -69,4 +69,8 @@ multimap {
     map = "${TESTDIR}/configs/maps/utf.list";
     regexp = true;
   }
+  HOSTNAME_MAP {
+    type = "hostname";
+    map = "${TESTDIR}/configs/maps/domains.list";
+  }
 }