applications: nrf_desktop: Add pytest test for nRF54L15 DK

Change adds pytest test configuration for nRF54L15 DK. Using pytest is
necessary to perform twister runtime tests of configurations that
require MCUboot KMU keys provisioning.

Jira: NCSDK-30872

Signed-off-by: Marek Pieta <[email protected]>

Author: MarekPieta

applications/nrf_desktop/pytest/test_mcuboot_kmu.py

@@ -0,0 +1,103 @@
+#
+# Copyright (c) 2024 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+import os
+import logging
+import subprocess
+import re
+import shlex
+
+from twister_harness import DeviceAdapter
+from twister_harness.helpers.utils import find_in_config
+
+logger = logging.getLogger(__name__)
+
+def run_command(command: list[str], timeout: int = 30):
+    try:
+        ret: subprocess.CompletedProcess = subprocess.run(command,
+                                                          text=True,
+                                                          stdout=subprocess.PIPE,
+                                                          stderr=subprocess.STDOUT,
+                                                          timeout=timeout)
+    except subprocess.TimeoutExpired:
+        logger.error(f"Timeout expired for command: {shlex.join(command)}")
+        raise
+
+    if ret.returncode:
+        logger.error(f"Command failed: {shlex.join(command)}")
+        logger.error(ret.stdout)
+        raise subprocess.CalledProcessError(ret.returncode, command)
+
+
+def _mcuboot_key_path(dut: DeviceAdapter):
+    mcuboot_conf_path = os.path.join(str(dut.device_config.build_dir), "mcuboot", "zephyr",
+                                     ".config")
+    return find_in_config(mcuboot_conf_path, "CONFIG_BOOT_SIGNATURE_KEY_FILE")
+
+
+def mcuboot_provision(dut: DeviceAdapter):
+    soc = dut.device_config.platform.split("/")[1]
+    key_path = _mcuboot_key_path(dut)
+    command = ["west", "ncs-provision", "upload", "-s", soc, "-k", key_path]
+    if dut.device_config.id:
+        command.extend(["--dev-id", dut.device_config.id])
+
+    logger.info("KMU provisioning")
+    run_command(command)
+
+
+def board_reset(dut: DeviceAdapter):
+    command = ["nrfutil", "device", "reset"]
+    if dut.device_config.id:
+        command.extend(["--serial-number", dut.device_config.id])
+
+    logger.info("Resetting board")
+    run_command(command)
+
+
+def logs_verify(dut: DeviceAdapter):
+    # Expected logs are sourced from nRF Desktop `sample.yaml` file.
+    expected_logs = [
+      "app_event_manager: e:module_state_event module:main state:READY",
+      "ble_state: Bluetooth initialized",
+      "settings_loader: Settings loaded",
+      "ble_bond: Selected Bluetooth LE peers",
+      "(ble_adv: Advertising started)|(ble_scan: Scan started)",
+      "dfu: Secondary image slot is clean"
+    ]
+    error_log = "<err>"
+
+    expected_regexes = list(map(re.compile, expected_logs))
+
+    while True:
+        line = dut.readline(timeout=120)
+
+        if line is None:
+            break
+
+        assert error_log not in line
+
+        for r in expected_regexes:
+            if r.search(line):
+                expected_regexes.remove(r)
+
+        if len(expected_regexes) == 0:
+            break
+
+
+    # Expect to match all of the regexes
+    assert len(expected_regexes) == 0
+
+
+def test_boot(dut: DeviceAdapter):
+    # nRF Desktop and bootloader images are already programmed at this stage.
+    mcuboot_provision(dut)
+
+    # Clear buffer to ensure proper state and then reset the board to start test.
+    dut.clear_buffer()
+    board_reset(dut)
+
+    logs_verify(dut)

applications/nrf_desktop/sample.yaml

@@ -6,7 +6,6 @@ sample:
 common:
   sysbuild: true
   tags: ci_build sysbuild ci_applications_nrf_desktop
-  harness: console
   harness_config:
     type: multi_line
     ordered: false
@@ -18,13 +17,19 @@ common:
       - "(ble_adv: Advertising started)|(ble_scan: Scan started)"
       - "dfu: Secondary image slot is clean"
 tests:
+  applications.nrf_desktop.zdebug.uart.kmu_provision:
+    platform_allow:
+      - nrf54l15dk/nrf54l15/cpuapp
+    integration_platforms:
+      - nrf54l15dk/nrf54l15/cpuapp
+    timeout: 180
+    harness: pytest
   applications.nrf_desktop.zdebug.uart:
     platform_allow:
       - nrf54h20dk/nrf54h20/cpuapp
-      - nrf54l15dk/nrf54l15/cpuapp
     integration_platforms:
       - nrf54h20dk/nrf54h20/cpuapp
-      - nrf54l15dk/nrf54l15/cpuapp
+    harness: console
   applications.nrf_desktop.zdebug:
     build_only: true
     platform_allow: >
@@ -49,14 +54,16 @@ tests:
     integration_platforms:
       - nrf52840dk/nrf52840
     extra_args: FILE_SUFFIX=wwcb
-  applications.nrf_desktop.zdebug_fast_pair.gmouse.uart:
+  applications.nrf_desktop.zdebug_fast_pair.gmouse.uart.kmu_provision:
     platform_allow:
       - nrf54l15dk/nrf54l15/cpuapp
     integration_platforms:
       - nrf54l15dk/nrf54l15/cpuapp
     extra_args: FILE_SUFFIX=fast_pair
                 FP_MODEL_ID=0x8E717D
                 FP_ANTI_SPOOFING_KEY=dZxFzP7X9CcfLPC0apyRkmgsh3n2EbWo9NFNXfVuxAM=
+    timeout: 180
+    harness: pytest
   applications.nrf_desktop.zdebug_fast_pair.gmouse:
     build_only: true
     platform_allow: nrf52840dk/nrf52840 nrf52840gmouse/nrf52840
@@ -111,12 +118,14 @@ tests:
     integration_platforms:
       - nrf52840dk/nrf52840
     extra_args: FILE_SUFFIX=dongle
-  applications.nrf_desktop.zdebug_keyboard.uart:
+  applications.nrf_desktop.zdebug_keyboard.uart.kmu_provision:
     platform_allow:
       - nrf54l15dk/nrf54l15/cpuapp
     integration_platforms:
       - nrf54l15dk/nrf54l15/cpuapp
     extra_args: FILE_SUFFIX=keyboard
+    timeout: 180
+    harness: pytest
   applications.nrf_desktop.zdebug_keyboard:
     build_only: true
     platform_allow: