Added missing include + cleaned up some tests

Author: Antti Kauppila

TESTS/netsocket/dns/asynchronous_dns_external_event_queue.cpp

@@ -53,15 +53,7 @@ static nsapi_error_t event_queue_call(int delay, mbed::Callback<void()> func)
 
 void ASYNCHRONOUS_DNS_EXTERNAL_EVENT_QUEUE()
 {
-    // Ensures that cache does not contain entries
     nsapi_dns_reset();
-    do_asynchronous_gethostbyname(dns_test_hosts, MBED_CONF_NSAPI_DNS_CACHE_SIZE, &result_ok, &result_no_mem,
-                                  &result_dns_failure, &result_exp_timeout);
-
-    TEST_ASSERT_EQUAL(MBED_CONF_NSAPI_DNS_CACHE_SIZE, result_ok);
-    TEST_ASSERT_EQUAL(0, result_no_mem);
-    TEST_ASSERT_EQUAL(0, result_dns_failure);
-    TEST_ASSERT_EQUAL(0, result_exp_timeout);
 
     // Dispatch event queue
     Thread eventThread(osPriorityNormal, EXTERNAL_THREAD_SIZE);

TESTS/netsocket/dns/asynchronous_dns_invalid_host.cpp

@@ -32,10 +32,7 @@ int result_exp_timeout;
 
 void ASYNCHRONOUS_DNS_INVALID_HOST()
 {
-    // Ensures that cache does not contain entries
     nsapi_dns_reset();
-    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));

TESTS/netsocket/dns/asynchronous_dns_simultaneous_cache.cpp

@@ -36,9 +36,9 @@ void ASYNCHRONOUS_DNS_SIMULTANEOUS_CACHE()
     do_asynchronous_gethostbyname(dns_test_hosts_second, MBED_CONF_APP_DNS_SIMULT_QUERIES + 1, &result_ok, &result_no_mem,
                                   &result_dns_failure, &result_exp_timeout);
 
-    // Addresses were cached on last step, OK for all
-    TEST_ASSERT_EQUAL(MBED_CONF_APP_DNS_SIMULT_QUERIES + 1, result_ok);
-    TEST_ASSERT_EQUAL(0, result_no_mem);
+    // As cache is empty, 6th entry will return out of memory.
+    TEST_ASSERT_EQUAL(MBED_CONF_APP_DNS_SIMULT_QUERIES, result_ok);
+    TEST_ASSERT_EQUAL(1, result_no_mem);
     TEST_ASSERT_EQUAL(0, result_dns_failure);
     TEST_ASSERT_EQUAL(0, result_exp_timeout);
 }

TESTS/netsocket/dns/asynchronous_dns_timeouts.cpp

@@ -49,15 +49,7 @@ static nsapi_error_t event_queue_call(int delay, mbed::Callback<void()> func)
 
 void ASYNCHRONOUS_DNS_TIMEOUTS()
 {
-    // Ensures that cache does not contain entries
     nsapi_dns_reset();
-    do_asynchronous_gethostbyname(dns_test_hosts, MBED_CONF_NSAPI_DNS_CACHE_SIZE, &result_ok, &result_no_mem,
-                                  &result_dns_failure, &result_exp_timeout);
-
-    TEST_ASSERT_EQUAL(MBED_CONF_NSAPI_DNS_CACHE_SIZE, result_ok);
-    TEST_ASSERT_EQUAL(0, result_no_mem);
-    TEST_ASSERT_EQUAL(0, result_dns_failure);
-    TEST_ASSERT_EQUAL(0, result_exp_timeout);
 
     // Dispatch event queue
     Thread eventThread(osPriorityNormal, EXTERNAL_THREAD_SIZE);

TESTS/netsocket/dns/dns_tests.h

@@ -18,6 +18,8 @@
 #ifndef DNS_TESTS_H
 #define DNS_TESTS_H
 
+#include "nsapi_dns.h"
+
 #ifndef MBED_CONF_APP_DNS_SIMULT_QUERIES
 #ifdef MBED_CONF_CELLULAR_OFFLOAD_DNS_QUERIES
 #define MBED_CONF_APP_DNS_SIMULT_QUERIES   MBED_CONF_CELLULAR_OFFLOAD_DNS_QUERIES