Mbed OS has a folder called TEST_APPS that contains everything related to Icetea testing.

There are currently three folders:

• device - contains all the different test applications you can flash to your board.
• icetea_plugins - contains plugins that are being used by some of the testcases, needed for the test execution.
• testcases - contains Icetea testcases written in Python.

The testcases depend on test applications.

You need Icetea and version 1.8.0 or higher of Mbed CLI installed.

Depending on the device, there might be a default network interface type defined in mbed-os/targets/targets.json, which you can use to locate a default test-config file.

If the default network interface type is not defined or you want to use a different interface than the default, you need to provide a test-config file to the mbed test with --test-config option.

The test-config file contains the necessary information for the test application. There are some test-config files located under mbed-os/tools/test_configs.

Devices that have their network drivers residing inside mbed-os can use generic test_configs, such as HeapBlockDeviceAndEthernetInterface.json and HeapBlockDeviceAndWifiInterface.json. Otherwise, you need to use a device-specific test-config.

Now that you have selected the interface, you can run the Icetea tests from the mbed-os root on your command-line by running the following command:

mbed test -m <target> -t <toolchain> --icetea

This command compiles the OS, compiles the test applications, creates a test suite and then starts running the tests.

If you only want to run some specific tests, you can use the -n option. You can choose multiple tests by separating them with a comma (,):

mbed test -m <target> -t <toolchain> --icetea -n test1,test2

Some devices may offer multiple network interfaces to operate with. For example, UBLOX_EVK_ODIN_W2 offers ethernet and Wi-Fi capabilities.

The tests can be run for either one of those using already existing test-config -files.

To run the tests with the Wi-Fi interface:

mbed test -m UBLOX_EVK_ODIN_W2 -t <toolchain> --icetea --test-config tools/test_configs/HeapBlockDeviceAndWifiInterface.json

To run the tests with the ethernet interface:

mbed test -m UBLOX_EVK_ODIN_W2 -t <toolchain> --icetea --test-config tools/test_configs/HeapBlockDeviceAndEthernetInterface.json

If you are using the Wi-Fi interface for running the tests, you need to also provide information about the used access point.

The information can be provided in the used test-config file.

Example of access point information:

    "target_overrides": {
        "*": {
            "target.network-default-interface-type": "WIFI",
            "nsapi.default-wifi-ssid": "\"ssid\"",
            "nsapi.default-wifi-password": "\"password\"",
            "nsapi.default-wifi-security": "WPA_WPA2"
        }
    }

Icetea prints the results from the test run to the command-line, and the final result looks similar to this:

+--------------------------------+---------+-------------+-------------+-----------+----------+
| Testcase                       | Verdict | Fail Reason | Skip Reason | platforms | duration |
+--------------------------------+---------+-------------+-------------+-----------+----------+
| test_cmdline                   |   pass  |             |             |    K64F   |  8.555   |
| UDPSOCKET_BIND_PORT            |   pass  |             |             |    K64F   |  19.614  |
| TCPSOCKET_BIND_PORT            |   pass  |             |             |    K64F   |  15.852  |
| TCPSERVER_ACCEPT               |   pass  |             |             |    K64F   |  41.629  |
| TCPSOCKET_ECHOTEST_BURST_SHORT |   pass  |             |             |    K64F   |  19.926  |
+--------------------------------+---------+-------------+-------------+-----------+----------+
+---------------+----------------+
|    Summary    |                |
+---------------+----------------+
| Final Verdict |      PASS      |
|     count     |       5        |
|    passrate   |    100.00 %    |
|      pass     |       5        |
|    Duration   | 0:01:45.576000 |
+---------------+----------------+

You can also find the results from the tests in the mbed-os/log folder.

You probably want to add the log folder to your .mbedignore file to prevent issues with build commands becoming too long over the time.