diff --git a/p4app/test.py b/p4app/test.py
index 02ee6ec..016047c 100644
--- a/p4app/test.py
+++ b/p4app/test.py
@@ -16,6 +16,15 @@ class TestStuff(object):
     def __init__(self):
         pass
 
+    def test_icmp6_switch(self):
+        host = "h1"
+        dst_ipv6 = ipaddress.ip_address("2001:db8::42")
+
+        log.info("Trying to reach {} from {}".format(dst_ipv6, host))
+        cmd = "mx h1 ping6 -c1 {}".format(dst_ipv6)
+
+        return cmd
+
     def test_v6_static_mapping(self):
         host = "h1"
         nat64_prefix      = ipaddress.ip_network("64:ff9b::/96")
@@ -25,7 +34,8 @@ class TestStuff(object):
         log.info("Trying to reach {} ({}) from {}".format(dst_ipv4, translated_ipv4, host))
         cmd = "mx h1 ping6 -c1 {}".format(translated_ipv4).split(" ")
 
-        subprocess.call(cmd)
+        return cmd
+
 
     def commandline(self):
         parser = argparse.ArgumentParser(description='controller++')
@@ -50,7 +60,7 @@ class TestStuff(object):
             log.setLevel(logging.WARNING)
 
         f = getattr(self, "test_{}".format(self.args.method))
-        f()
+        subprocess.call(f())
 
 if __name__ == "__main__":
     import sys