Fix UDPSOCKET_ECHOTEST to handle oversized packets

Author: Ari Parkkila

TESTS/netsocket/udp/udpsocket_echotest.cpp

@@ -86,6 +86,7 @@ void UDPSOCKET_ECHOTEST_impl(bool use_sendto)
 
         fill_tx_buffer_ascii(tx_buffer, BUFF_SIZE);
         int packets_sent_prev = packets_sent;
+        bool is_oversized;
 
         for (int retry_cnt = 0; retry_cnt <= 2; retry_cnt++) {
             memset(rx_buffer, 0, BUFF_SIZE);
@@ -94,8 +95,10 @@ void UDPSOCKET_ECHOTEST_impl(bool use_sendto)
             } else {
                 sent = sock.send(tx_buffer, pkt_s);
             }
-            if (check_oversized_packets(sent, pkt_s)) {
+            is_oversized = check_oversized_packets(sent, pkt_s);
+            if (is_oversized) {
                 TEST_IGNORE_MESSAGE("This device does not handle oversized packets");
+                break;
             } else if (sent == pkt_s) {
                 packets_sent++;
             } else {
@@ -127,6 +130,9 @@ void UDPSOCKET_ECHOTEST_impl(bool use_sendto)
             }
         }
 
+        if (is_oversized) {
+            continue;
+        }
         if (use_sendto) {
             // Verify received address is correct
             TEST_ASSERT(udp_addr == recv_addr);
@@ -188,6 +194,8 @@ void UDPSOCKET_ECHOTEST_NONBLOCK_impl(bool use_sendto)
     for (unsigned int s_idx = 0; s_idx < sizeof(pkt_sizes) / sizeof(*pkt_sizes); ++s_idx) {
         int pkt_s = pkt_sizes[s_idx];
         int packets_sent_prev = packets_sent;
+        bool is_oversized;
+
         for (int retry_cnt = 0; retry_cnt <= RETRIES; retry_cnt++) {
             fill_tx_buffer_ascii(tx_buffer, pkt_s);
 
@@ -197,7 +205,11 @@ void UDPSOCKET_ECHOTEST_NONBLOCK_impl(bool use_sendto)
                 sent = sock->send(tx_buffer, pkt_s);
             }
 
-            if (sent == pkt_s) {
+            is_oversized = check_oversized_packets(sent, pkt_s);
+            if (is_oversized) {
+                TEST_IGNORE_MESSAGE("This device does not handle oversized packets");
+                break;
+            } else if (sent == pkt_s) {
                 packets_sent++;
             } else if (sent == NSAPI_ERROR_WOULD_BLOCK) {
                 if (tc_exec_time.read() >= time_allotted ||
@@ -239,6 +251,10 @@ void UDPSOCKET_ECHOTEST_NONBLOCK_impl(bool use_sendto)
                 break;
             }
         }
+
+        if (is_oversized) {
+            continue;
+        }
         // Make sure that at least one packet of every size was sent.
         TEST_ASSERT_TRUE(packets_sent > packets_sent_prev);
         if (memcmp(tx_buffer, rx_buffer, pkt_s) == 0) {