Fix netsocket DNS test for IAR

Test case printed IP address. If ip address is null, IAR compiled binary fails. Added check for printing null. If IP address is null, then it prints string 'null'.
ARMmbed · Aug 12, 2019 · ce36104 · ce36104
1 parent 9bf85ef
commit ce36104
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/TESTS/netsocket/dns/main.cpp b/TESTS/netsocket/dns/main.cpp
@@ -160,7 +160,7 @@ static void net_bringup()
     net = NetworkInterface::get_default_instance();
     nsapi_error_t err = net->connect();
     TEST_ASSERT_EQUAL(NSAPI_ERROR_OK, err);
-    printf("MBED: IP address is '%s'\n", net->get_ip_address());
+    printf("MBED: IP address is '%s'\n", net->get_ip_address() ? net->get_ip_address() : "null");
 }
 
 static void net_bringdown()