wifi_scan.cpp

00001 /*
00002  * Copyright (c) 2017, ARM Limited, All Rights Reserved
00003  * SPDX-License-Identifier: Apache-2.0
00004  *
00005  * Licensed under the Apache License, Version 2.0 (the "License"); you may
00006  * not use this file except in compliance with the License.
00007  * You may obtain a copy of the License at
00008  *
00009  * http://www.apache.org/licenses/LICENSE-2.0
00010  *
00011  * Unless required by applicable law or agreed to in writing, software
00012  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
00013  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00014  * See the License for the specific language governing permissions and
00015  * limitations under the License.
00016  */
00017 
00018 #include "mbed.h"
00019 #include "greentea-client/test_env.h"
00020 #include "unity.h"
00021 #include "utest.h"
00022 #include "wifi_tests.h"
00023 #include <stdbool.h>
00024 
00025 using namespace utest::v1;
00026 
00027 #if defined(MBED_CONF_APP_WIFI_SECURE_SSID) && defined(MBED_CONF_APP_WIFI_UNSECURE_SSID)
00028 
00029 void wifi_scan(void)
00030 {
00031     WiFiInterface *wifi = get_interface();
00032 
00033     WiFiAccessPoint ap[MBED_CONF_APP_MAX_SCAN_SIZE];
00034 
00035     int size = wifi->scan(ap, MBED_CONF_APP_MAX_SCAN_SIZE);
00036     TEST_ASSERT(size >= 2);
00037 
00038     bool secure_found = false;
00039     bool unsecure_found = false;
00040 
00041     char secure_bssid[6];
00042     char unsecure_bssid[6];
00043     const char *coversion_string = "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx";
00044     TEST_ASSERT_EQUAL_INT_MESSAGE(6, sscanf(MBED_CONF_APP_AP_MAC_SECURE, coversion_string, &secure_bssid[0], &secure_bssid[1], &secure_bssid[2], &secure_bssid[3], &secure_bssid[4], &secure_bssid[5]), "Failed to convert ap-mac-secure from mbed_app.json");
00045     TEST_ASSERT_EQUAL_INT_MESSAGE(6, sscanf(MBED_CONF_APP_AP_MAC_UNSECURE, coversion_string, &unsecure_bssid[0], &unsecure_bssid[1], &unsecure_bssid[2], &unsecure_bssid[3], &unsecure_bssid[4], &unsecure_bssid[5]), "Failed to convert ap-mac-unsecure from mbed_app.json");
00046 
00047     for (int i = 0; i < size; i++) {
00048         const char *ssid = ap[i].get_ssid();
00049         nsapi_security_t security = ap[i].get_security();
00050         int8_t rssi = ap[i].get_rssi();
00051         TEST_ASSERT_INT8_WITHIN(-10, -100, rssi);
00052         if (strcmp(MBED_CONF_APP_WIFI_SECURE_SSID, ssid) == 0) {
00053             secure_found = true;
00054             TEST_ASSERT_EQUAL_INT(get_security(), security);
00055         }
00056         if (strcmp(MBED_CONF_APP_WIFI_UNSECURE_SSID, ssid) == 0) {
00057             unsecure_found = true;
00058             TEST_ASSERT_EQUAL_INT(NSAPI_SECURITY_NONE , security);
00059         }
00060     }
00061     // Finding one SSID is enough
00062     TEST_ASSERT_TRUE(secure_found || unsecure_found);
00063 }
00064 
00065 #endif // defined(MBED_CONF_APP_WIFI_SECURE_SSID) && defined(MBED_CONF_APP_WIFI_UNSECURE_SSID)