Adds TCP and UDP test cases

tcpsocket_open_close_repeat
	udpsocket_open_close_repeat

TESTS/netsocket/tcp/main.cpp

@@ -93,6 +93,7 @@ void greentea_teardown(const size_t passed, const size_t failed, const failure_t
 Case cases[] = {
     Case("Echo burst", test_tcpsocket_echotest_burst),
     Case("Echo burst non-block", test_tcpsocket_echotest_burst_nonblock),
+    Case("Reuse a socket", test_tcpsocket_open_close_repeat),
     Case("Open at least 4 sockets", test_tcpsocket_open_limit),
     Case("Receive 100k from CHARGEN service", test_tcpsocket_recv_100k),
     Case("Receive 100k from CHARGEN service non-block", test_tcpsocket_recv_100k_nonblock),

TESTS/netsocket/tcp/tcp_tests.h

@@ -28,6 +28,7 @@ void fill_tx_buffer_ascii(char *buff, size_t len);
 void test_tcpsocket_echotest_burst();
 void test_tcpsocket_echotest_burst_nonblock();
 void test_tcpsocket_endpoint_close();
+void test_tcpsocket_open_close_repeat();
 void test_tcpsocket_open_limit();
 void test_tcpsocket_recv_100k();
 void test_tcpsocket_recv_100k_nonblock();

TESTS/netsocket/tcp/tcpsocket_open_close_repeat.cpp

@@ -0,0 +1,38 @@
+/*
+ * 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 "greentea-client/test_env.h"
+#include "mbed.h"
+#include MBED_CONF_APP_HEADER_FILE
+#include "tcp_tests.h"
+#include "TCPSocket.h"
+#include "unity/unity.h"
+#include "utest.h"
+
+void test_tcpsocket_open_close_repeat()
+{
+    TCPSocket *sock = new TCPSocket;
+    if (!sock) {
+        TEST_FAIL();
+    }
+
+    for (int i = 0; i < 2; i++) {
+        TEST_ASSERT_EQUAL(NSAPI_ERROR_OK, sock->open(get_interface()));
+        TEST_ASSERT_EQUAL(NSAPI_ERROR_OK, sock->close());
+    }
+    delete sock;
+}

TESTS/netsocket/udp/main.cpp

@@ -80,6 +80,7 @@ void greentea_teardown(const size_t passed, const size_t failed, const failure_t
 Case cases[] = {
         Case("Echo burst", test_udpsocket_echotest_burst),
         Case("Echo burst non-block", test_udpsocket_echotest_burst_nonblock),
+        Case("Reuse a socket", test_udpsocket_open_close_repeat),
         Case("Open at least 3 sockets", test_udpsocket_open_limit),
         Case("Receive in given time", test_udpsocket_recv_timeout),
         Case("Send in given time", test_udpsocket_sendto_timeout),

TESTS/netsocket/udp/udp_tests.h

@@ -26,6 +26,7 @@ void fill_tx_buffer_ascii(char *buff, size_t len);
  */
 void test_udpsocket_echotest_burst();
 void test_udpsocket_echotest_burst_nonblock();
+void test_udpsocket_open_close_repeat();
 void test_udpsocket_open_limit();
 void test_udpsocket_recv_timeout();
 void test_udpsocket_sendto_timeout();

TESTS/netsocket/udp/udpsocket_open_close_repeat.cpp

@@ -0,0 +1,38 @@
+/*
+ * 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 "greentea-client/test_env.h"
+#include "mbed.h"
+#include MBED_CONF_APP_HEADER_FILE
+#include "udp_tests.h"
+#include "UDPSocket.h"
+#include "unity/unity.h"
+#include "utest.h"
+
+void test_udpsocket_open_close_repeat()
+{
+    UDPSocket *sock = new UDPSocket;
+    if (!sock) {
+        TEST_FAIL();
+    }
+
+    for (int i = 0; i < 2; i++) {
+        TEST_ASSERT_EQUAL(NSAPI_ERROR_OK, sock->open(get_interface()));
+        TEST_ASSERT_EQUAL(NSAPI_ERROR_OK, sock->close());
+    }
+    delete sock;
+}