main.cpp

00001 #include "mbed.h"
00002 #include "ESP8266Interface.h"
00003 #include "TCPSocket.h"
00004 #include "greentea-client/test_env.h"
00005 #include "unity/unity.h"
00006 #include "utest.h"
00007 
00008 using namespace utest::v1;
00009 
00010 
00011 #ifndef MBED_CFG_TCP_CLIENT_ECHO_BUFFER_SIZE
00012 #define MBED_CFG_TCP_CLIENT_ECHO_BUFFER_SIZE 256
00013 #endif
00014 
00015 #ifndef MBED_CFG_ESP8266_TX
00016 #define MBED_CFG_ESP8266_TX D1
00017 #endif
00018 
00019 #ifndef MBED_CFG_ESP8266_RX
00020 #define MBED_CFG_ESP8266_RX D0
00021 #endif
00022 
00023 #ifndef MBED_CFG_ESP8266_DEBUG
00024 #define MBED_CFG_ESP8266_DEBUG false
00025 #endif
00026 
00027 #define STRINGIZE(x) STRINGIZE2(x)
00028 #define STRINGIZE2(x) #x
00029 
00030 namespace {
00031     char tx_buffer[MBED_CFG_TCP_CLIENT_ECHO_BUFFER_SIZE] = {0};
00032     char rx_buffer[MBED_CFG_TCP_CLIENT_ECHO_BUFFER_SIZE] = {0};
00033     const char ASCII_MAX = '~' - ' ';
00034 }
00035 
00036 void prep_buffer(char *tx_buffer, size_t tx_size) {
00037     for (size_t i=0; i<tx_size; ++i) {
00038         tx_buffer[i] = (rand() % 10) + '0';
00039     }
00040 }
00041 
00042 void test_tcp_echo() {
00043     ESP8266Interface net(MBED_CFG_ESP8266_TX, MBED_CFG_ESP8266_RX, MBED_CFG_ESP8266_DEBUG);
00044     int err = net.connect(STRINGIZE(MBED_CFG_ESP8266_SSID), STRINGIZE(MBED_CFG_ESP8266_PASS));
00045 
00046     if (err) {
00047         printf("MBED: failed to connect with an error of %d\r\n", err);
00048         TEST_ASSERT_EQUAL(0, err);
00049     }
00050 
00051     printf("MBED: TCPClient IP address is '%s'\n", net.get_ip_address());
00052     printf("MBED: TCPClient waiting for server IP and port...\n");
00053 
00054     greentea_send_kv("target_ip", net.get_ip_address());
00055 
00056     bool result = false;
00057 
00058     char recv_key[] = "host_port";
00059     char ipbuf[60] = {0};
00060     char portbuf[16] = {0};
00061     unsigned int port = 0;
00062 
00063     greentea_send_kv("host_ip", " ");
00064     greentea_parse_kv(recv_key, ipbuf, sizeof(recv_key), sizeof(ipbuf));
00065 
00066     greentea_send_kv("host_port", " ");
00067     greentea_parse_kv(recv_key, portbuf, sizeof(recv_key), sizeof(ipbuf));
00068     sscanf(portbuf, "%u", &port);
00069 
00070     printf("MBED: Server IP address received: %s:%d \n", ipbuf, port);
00071 
00072     TCPSocket sock(&net);
00073     SocketAddress tcp_addr(ipbuf, port);
00074     if (sock.connect(tcp_addr) == 0) {
00075         printf("HTTP: Connected to %s:%d\r\n", ipbuf, port);
00076         printf("tx_buffer buffer size: %u\r\n", sizeof(tx_buffer));
00077         printf("rx_buffer buffer size: %u\r\n", sizeof(rx_buffer));
00078 
00079         prep_buffer(tx_buffer, sizeof(tx_buffer));
00080         sock.send(tx_buffer, sizeof(tx_buffer));
00081         printf("MBED: Finished sending\r\n");
00082         // Server will respond with HTTP GET's success code
00083         const int ret = sock.recv(rx_buffer, sizeof(rx_buffer));
00084         printf("MBED: Finished receiving\r\n");
00085 
00086         result = !memcmp(tx_buffer, rx_buffer, sizeof(tx_buffer));
00087         TEST_ASSERT_EQUAL(ret, sizeof(rx_buffer));
00088         TEST_ASSERT_EQUAL(true, result);
00089     }
00090 
00091     sock.close();
00092     net.disconnect();
00093     TEST_ASSERT_EQUAL(true, result);
00094 }
00095 
00096 
00097 // Test setup
00098 utest::v1::status_t test_setup(const size_t number_of_cases) {
00099     GREENTEA_SETUP(120, "tcp_echo");
00100     return verbose_test_setup_handler(number_of_cases);
00101 }
00102 
00103 Case cases[] = {
00104     Case("TCP echo", test_tcp_echo),
00105 };
00106 
00107 Specification specification(test_setup, cases);
00108 
00109 int main() {
00110     return !Harness::run(specification);
00111 }
00112