Cellular: Remove old deprecated tests

Cellular tests have been replaced with generic mbed-os netsocket and network interface tests.

Author: Kimmo Vaisanen

TESTS/netsocket/README.md

@@ -386,10 +386,18 @@ Wi-Fi tests require some more configuration, so for Wi-Fi purposes, the `mbed_ap
         "echo-server-port" : {
             "help" : "Port of echo server",
             "value" : "7"
-        }
+        },
+        "echo-server-discard-port" : {
+            "help" : "Discard port of echo server",
+            "value" : "9"
+        },
         "echo-server-port-tls" : {
-            "help" : "Port of echo server TLS",
+            "help" : "Port of echo server for TLS",
             "value" : "2007"
+        },
+        "echo-server-discard-port-tls" : {
+            "help" : "Discard port of echo server for TLS",
+            "value" : "2009"
         }
     },
     "target_overrides": {
@@ -403,7 +411,54 @@ Wi-Fi tests require some more configuration, so for Wi-Fi purposes, the `mbed_ap
 }
 ```
 
-Please, see `mbed-os/tools/test_configs` folder for examples.
+Cellular tests require some more configuration, so for cellular purposes, the `mbed_app.json` might look like this:
+NOTE! These are just typical settings needed for cellular. Actual configuration values depend on used target HW, SIM, modem and network capabilities.
+
+```
+{
+    "config": {
+        "echo-server-addr" : {
+            "help" : "IP address of echo server",
+            "value" : "\"echo.mbedcloudtesting.com\""
+        },
+        "echo-server-port" : {
+            "help" : "Port of echo server",
+            "value" : "7"
+        },
+        "echo-server-discard-port" : {
+            "help" : "Discard port of echo server",
+            "value" : "9"
+        },
+        "echo-server-port-tls" : {
+            "help" : "Port of echo server for TLS",
+            "value" : "2007"
+        },
+        "echo-server-discard-port-tls" : {
+            "help" : "Discard port of echo server for TLS",
+            "value" : "2009"
+        }
+    },
+    "target_overrides": {
+        "*": {
+            "target.network-default-interface-type": "CELLULAR",
+            "nsapi.default-cellular-sim-pin": "\"SIM PIN if needed\"",
+            "nsapi.default-cellular-plmn": "\"PLMN if needed\"",
+            "nsapi.default-cellular-apn": "\"APN if needed\"",
+            "nsapi.default-cellular-username": "\"SIM USERNAME if needed\"",
+            "nsapi.default-cellular-password": "\"SIM PASSWORD if needed\"",
+            "lwip.ipv4-enabled": true,
+            "lwip.ipv6-enabled": true,
+            "lwip.tcp-enabled": true,
+            "lwip.ppp-enabled": true,
+            "lwip.ethernet-enabled": false,
+            "<YOUR MODEM TARGET>.provide-default": true,
+            "cellular.radio-access-technology": <see supported values from cellular mbed_lib.json>
+        }
+    }
+}
+```
+
+Please, see `mbed-os/tools/test_configs` folder for examples for different technologies.
 
 Now build the test binaries:
 

features/cellular/README.md

@@ -9,8 +9,6 @@ This is the Github repo for Mbed cellular connectivity:
         device      Implementation of cellular device and state machine
         targets     Vendor specific cellular module adaptations
 
-    TESTS           Cellular Greentea test
-
 **Note:** Application developers should use only the `API` folder.
 
 ## Known limitations
@@ -28,6 +26,7 @@ You can change cellular defaults in the `mbed_lib.json` configuration file.
 ## Debug traces
 
 You can define the debug tracing level in the `mbed_app.json` configuration file:
+
 ```
 "target_overrides": {
     "*": {
@@ -48,18 +47,8 @@ You can define the debug tracing level in the `mbed_app.json` configuration file
 
 ## Greentea tests
 
-The `TESTS` folder contains Greentea tests for cellular specific classes. You need to give relevant configuration file with `--app-config` parameter, such as:
-
-```
-mbed test -n features-cellular-tests-* --app-config features\cellular\TESTS\socket\udp\template_mbed_app.json.txt -v
-```
-
-**Note:** Greentea tests use SIM PIN, so you need to change that or your SIM card may get locked.
+Cellular connectivity can be tested with generic Mbed OS netsocket and network interface tests found in Mbed OS root `TESTS` directory. For more information, see `TESTS/netsocket/README.md` and `TESTS/network/interface/README.md`.
 
 ## Unit tests
 
-Cellular unit tests are in Mbed OS root `UNITTESTS`. Unit tests are based on the stubbing method.
-
-You need the following applications: `cpputest`, `gcov` and `lcov` (genhtml) for running the tests.
-
-After you run the `run_tests` script, you can find test results in `UNITTESTS/results`, and line and function coverages in `UNITTESTS/coverages`.
+Cellular unit tests are in Mbed OS root `UNITTESTS/features/cellular`.