tests: Bluetooth: BR: Add test suite sdp_client

IUT works as a SDP Client. The peer device, SDP server, is a PC with
running `bumble` on it.

Add shell command `discovery` to discover specific SDP record
according to specific UUID.

In the test suite, there are three groups test cases,
Group 1 is for Service Search Attribute transaction.
Group 2 is for Service Search transaction.
Group 3 is for Service Attribute transaction.

For each test group, there are four test cases,
Case 1, No SDP record is registered on PC. IUT should not find any SDP
record.
Case 2, A2DP source SDP record is registered on PC. IUT can find SDP
record. And the discovered PSM and version should be same with
registered.
Case 3, A2DP source and HFP HF SDP Records are registered. IUT can
find SDP record. And the discovered RFCOMM channel and HFP version
should be same with registered. This case is used to test the
"continuation state information".
Case 4, Multiple SDP Records are registered. This case is used to test
 the "continuation state information". And also it used to test the
total length exceeds the ACL RX Buffer Size.

Signed-off-by: Lyle Zhu <[email protected]>

Author: lylezhu2012

tests/bluetooth/classic/sdp_c/CMakeLists.txt

@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: Apache-2.0
+
+cmake_minimum_required(VERSION 3.20.0)
+set(NO_QEMU_SERIAL_BT_SERVER 1)
+
+find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
+project(bluetooth)
+
+FILE(GLOB app_sources src/*.c)
+target_sources(app PRIVATE ${app_sources})

tests/bluetooth/classic/sdp_c/README.rst

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+.. _bluetooth_classic_sdp_clinet_tests:
+
+Bluetooth Classic SDP Client Tests
+##################################
+
+Overview
+********
+
+This test suite uses ``bumble`` for testing Bluetooth Classic communication between a host
+PC (running :ref:`Twister <twister_script>`) and a device under test (DUT) running Zephyr.
+
+Prerequisites
+*************
+
+The test suite has the following prerequisites:
+
+* The ``bumble`` library installed on the host PC.
+The Bluetooth Classic controller on PC side is required. Refer to getting started of `bumble`_
+for details.
+
+The HCI transport for ``bumble`` can be configured as follows:
+
+* A specific configuration context can be provided along with the ``usb_hci`` fixture separated by
+  a ``:`` (i.e. specify fixture ``usb_hci:usb:0`` to use the ``usb:0`` as hci transport for
+  ``bumble``).
+* The configuration context can be overridden using the `hci transport`_ can be provided using the
+  ``--hci-transport`` test suite argument (i.e. run ``twister`` with the
+  ``--pytest-args=--hci-transport=usb:0`` argument to use the ``usb:0`` as hci transport for
+  ``bumble``).
+
+Building and Running
+********************
+
+Running on mimxrt1170_evk@B/mimxrt1176/cm7
+==========================================
+
+Running the test suite on :ref:`mimxrt1170_evk` relies on configuration of ``bumble``.
+
+On the host PC, a HCI transport needs to be required. Refer to `bumble platforms`_ page of
+``bumble`` for details.
+
+For example, on windows, a PTS dongle is used. After `WinUSB driver`_ has been installed,
+the HCI transport would be USB transport interface ``usb:<index>``.
+
+If the HCI transport is ``usb:0`` and debug console port is ``COM4``, the test suite can be
+launched using Twister:
+
+.. code-block:: shell
+
+   west twister -v -p mimxrt1170_evk@B/mimxrt1176/cm7 --device-testing --device-serial COM4 -T tests/bluetooth/classic/sdp_c -O sdp_c --force-platform --west-flash --west-runner=jlink -X usb_hci:usb:0
+
+Running on Hardware
+===================
+
+Running the test suite on hardware requires a HCI transport connected to the host PC.
+
+The test suite can be launched using Twister. Below is an example for running on the
+:zephyr:board:`mimxrt1170_evk@B/mimxrt1176/cm7`:
+
+.. code-block:: shell
+
+   west twister -v -p mimxrt1170_evk@B/mimxrt1176/cm7 --device-testing --device-serial COM4 -T tests/bluetooth/classic/sdp_c -O sdp_c --force-platform --west-flash --west-runner=jlink -X usb_hci:usb:0
+
+.. _bumble:
+   https://google.github.io/bumble/getting_started.html
+
+.. _hci transport:
+   https://google.github.io/bumble/transports/index.html
+
+.. _bumble platforms:
+   https://google.github.io/bumble/platforms/index.html
+
+.. _WinUSB driver:
+   https://google.github.io/bumble/platforms/windows.html

tests/bluetooth/classic/sdp_c/boards/mimxrt1170_evk_mimxrt1176_cm7_B.conf

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+#select NXP NW612 Chipset
+CONFIG_BT_NXP_NW612=y
+
+CONFIG_BT_SETTINGS=n
+CONFIG_FLASH=n
+CONFIG_FLASH_MAP=n
+CONFIG_NVS=n
+CONFIG_SETTINGS=n
+
+CONFIG_ENTROPY_GENERATOR=y

tests/bluetooth/classic/sdp_c/boards/mimxrt1170_evk_mimxrt1176_cm7_B.overlay

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+/*
+ * Copyright 2024 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	chosen {
+		zephyr,sram = &dtcm;
+	};
+};

tests/bluetooth/classic/sdp_c/prj.conf

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+CONFIG_BT=y
+CONFIG_BT_CLASSIC=y
+CONFIG_BT_SHELL=y
+CONFIG_LOG=y
+CONFIG_ZTEST=y
+
+CONFIG_BT_RFCOMM=y
+
+CONFIG_BT_DEVICE_NAME="sdp_client"
+
+CONFIG_BT_CREATE_CONN_TIMEOUT=30
+CONFIG_BT_PAGE_TIMEOUT=0xFFFF

tests/bluetooth/classic/sdp_c/pytest/conftest.py

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+# Copyright 2024 NXP
+#
+# SPDX-License-Identifier: Apache-2.0
+
+import logging
+import re
+
+import pytest
+from twister_harness import DeviceAdapter, Shell
+
+logger = logging.getLogger(__name__)
+
+
+def pytest_addoption(parser) -> None:
+    """Add local parser options to pytest."""
+    parser.addoption('--hci-transport', default=None, help='Configuration HCI transport for bumble')
+
+
+@pytest.fixture(name='initialize', scope='session')
+def fixture_initialize(request, shell: Shell, dut: DeviceAdapter):
+    """Session initializtion"""
+    # Get HCI transport for bumble
+    hci = request.config.getoption('--hci-transport')
+
+    if hci is None:
+        for fixture in dut.device_config.fixtures:
+            if fixture.startswith('usb_hci:'):
+                hci = fixture.split(sep=':', maxsplit=1)[1]
+                break
+
+    assert hci is not None
+
+    lines = shell.exec_command("bt init")
+    lines = dut.readlines_until("Bluetooth initialized")
+    regex = r'Identity: *(?P<bd_addr>(.*?):(.*?):(.*?):(.*?):(.*?):(.*?)*\((.*?)\))'
+    bd_addr = None
+    for line in lines:
+        logger.info(f"Shell log {line}")
+        m = re.search(regex, line)
+        if m:
+            bd_addr = m.group('bd_addr')
+
+    if bd_addr is None:
+        logger.error('Fail to get IUT BD address')
+        raise AssertionError
+
+    lines = shell.exec_command("br pscan on")
+    lines = shell.exec_command("br iscan on")
+    logger.info('initialized')
+    return hci, bd_addr
+
+
+@pytest.fixture
+def sdp_client_dut(initialize):
+    logger.info('Start running testcase')
+    yield initialize
+    logger.info('Done')