Diff: mbed-os/TESTS/netsocket/dns/asynchronous_dns_invalid_host.cpp

Revision:

0:8fdf9a60065b

diff -r 000000000000 -r 8fdf9a60065b mbed-os/TESTS/netsocket/dns/asynchronous_dns_invalid_host.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os/TESTS/netsocket/dns/asynchronous_dns_invalid_host.cpp	Wed Oct 10 00:33:53 2018 +0000
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2018, ARM Limited, All Rights Reserved
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "mbed.h"
+#include "greentea-client/test_env.h"
+#include "unity.h"
+#include "utest.h"
+#include "dns_tests.h"
+
+using namespace utest::v1;
+
+namespace {
+int result_ok;
+int result_no_mem;
+int result_dns_failure;
+int result_exp_timeout;
+}
+
+void ASYNCHRONOUS_DNS_INVALID_HOST()
+{
+    // Ensures that cache does not contain entries
+    do_asynchronous_gethostbyname(dns_test_hosts_second, MBED_CONF_NSAPI_DNS_CACHE_SIZE, &result_ok, &result_no_mem,
+                                  &result_dns_failure, &result_exp_timeout);
+
+    char dns_test_hosts_new[MBED_CONF_APP_DNS_TEST_HOSTS_NUM][DNS_TEST_HOST_LEN];
+    memcpy(dns_test_hosts_new, dns_test_hosts, sizeof(dns_test_hosts_new));
+
+    int exp_dns_failure = 0;
+    int exp_ok = 0;
+
+    // Invalidate 1st and 3th etc. entries
+    for (unsigned int i = 0; i < MBED_CONF_APP_DNS_SIMULT_QUERIES + 1; i++) {
+        if ((i % 2) == 0) {
+            // Last query fails to no memory so do not increase
+            if (i != MBED_CONF_APP_DNS_SIMULT_QUERIES) {
+                exp_dns_failure++;
+            }
+            strcat(&(dns_test_hosts_new[i][0]), "_invalid");
+        } else {
+            // Last query fails to no memory so do not increase
+            if (i != MBED_CONF_APP_DNS_SIMULT_QUERIES) {
+                exp_ok++;
+            }
+        }
+    }
+
+    do_asynchronous_gethostbyname(dns_test_hosts_new, MBED_CONF_APP_DNS_SIMULT_QUERIES + 1, &result_ok, &result_no_mem,
+                                  &result_dns_failure, &result_exp_timeout);
+
+    TEST_ASSERT(result_ok == exp_ok);
+    TEST_ASSERT(result_no_mem == 1); // last query fails for no memory as expected
+    TEST_ASSERT(result_dns_failure == exp_dns_failure || result_dns_failure == exp_dns_failure + 1);
+    TEST_ASSERT(result_exp_timeout == 0);
+}