[ncp] use ot-ctl CLI for NCP join/leave test (#2821)

This commit introduces a new expect test script,
`ncp_cli_join_leave.exp`, designed to verify the functionality of
joining and leaving using the `ot-ctl` CLI under NCP mode.

Author: yangsong-cnyn

tests/scripts/expect/_common.exp

@@ -88,6 +88,16 @@ proc spawn_node {id type sim_app} {
             spawn $sim_app
             expect ">"
         }
+        ctl {
+            spawn $sim_app
+            send "factoryreset\n"
+            wait_for "state" "disabled"
+            expect "Done"
+
+            expect_after {
+                timeout { fail "Timed out" }
+            }
+        }
         otbr-docker {
             spawn docker exec -it $sim_app bash
             expect "app#"

tests/scripts/expect/ncp_cli_join_leave.exp

@@ -0,0 +1,71 @@
+#!/usr/bin/expect -f
+#
+#  Copyright (c) 2025, The OpenThread Authors.
+#  All rights reserved.
+#
+#  Redistribution and use in source and binary forms, with or without
+#  modification, are permitted provided that the following conditions are met:
+#  1. Redistributions of source code must retain the above copyright
+#     notice, this list of conditions and the following disclaimer.
+#  2. Redistributions in binary form must reproduce the above copyright
+#     notice, this list of conditions and the following disclaimer in the
+#     documentation and/or other materials provided with the distribution.
+#  3. Neither the name of the copyright holder nor the
+#     names of its contributors may be used to endorse or promote products
+#     derived from this software without specific prior written permission.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+#  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+#  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+#  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+#  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+#  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+#  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+#  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+#  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+#  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+#  POSSIBILITY OF SUCH DAMAGE.
+#
+
+source "tests/scripts/expect/_common.exp"
+
+set dataset "0e080000000000010000000300001435060004001fffe002087d61eb42cdc48d6a0708fd0d07fca1b9f0500510ba088fc2bd6c3b3897f7a10f58263ff3030f4f70656e5468726561642d353234660102524f04109dc023ccd447b12b50997ef68020f19e0c0402a0f7f8"
+
+# Step 1. Start a Thread node and create a Thread network
+spawn_node 1 cli $::env(EXP_OT_CLI_PATH)
+
+send "dataset set active ${dataset}\n"
+expect_line "Done"
+send "ifconfig up\n"
+expect_line "Done"
+send "thread start\n"
+expect_line "Done"
+wait_for "state" "leader"
+expect_line "Done"
+
+
+# Step 2. Start otbr-agent with a NCP
+spawn_node 2 otbr $::env(EXP_OT_NCP_PATH)
+sleep 1
+
+# Step 3. Start ot-ctl and join the network
+spawn_node 3 ctl $::env(EXP_OT_CTL_PATH)
+
+send "dataset set active ${dataset}\n"
+expect "Done"
+send "ifconfig up\n"
+expect "Done"
+send "thread start\n"
+expect "Done"
+wait_for "state" "router|child"
+expect "Done"
+
+# Step 4. Leave the network
+send "thread stop\n"
+expect "Done"
+send "ifconfig down\n"
+expect "Done"
+
+# Step 5. Verify the state of otbr-agent is 'disabled'
+wait_for "state" "disabled"
+expect "Done"

tests/scripts/ncp_mode

@@ -61,6 +61,9 @@ readonly ABS_TOP_OT_SRCDIR
 ABS_TOP_OT_BUILDDIR="${ABS_TOP_BUILDDIR}/../simulation"
 readonly ABS_TOP_BUILDDIR
 
+OT_CTL="${ABS_TOP_BUILDDIR}/third_party/openthread/repo/src/posix/ot-ctl"
+readonly OT_CTL
+
 OTBR_COLOR_PASS='\033[0;32m'
 readonly OTBR_COLOR_PASS
 
@@ -141,7 +144,7 @@ do_build_ot_simulation()
         -DOT_MTD=OFF -DOT_RCP=OFF -DOT_APP_CLI=OFF -DOT_APP_RCP=OFF \
         -DOT_BORDER_ROUTING=ON -DOT_NCP_INFRA_IF=ON -DOT_SIMULATION_INFRA_IF=OFF \
         -DOT_SRP_SERVER=ON -DOT_SRP_ADV_PROXY=ON -DOT_PLATFORM_DNSSD=ON -DOT_SIMULATION_DNSSD=OFF -DOT_NCP_DNSSD=ON \
-        -DOT_BORDER_AGENT=ON \
+        -DOT_BORDER_AGENT=ON -DOT_NCP_CLI_STREAM=ON \
         -DBUILD_TESTING=OFF
     OT_CMAKE_BUILD_DIR=${ABS_TOP_OT_BUILDDIR}/cli "${ABS_TOP_OT_SRCDIR}"/script/cmake-build simulation \
         -DOT_MTD=OFF -DOT_RCP=OFF -DOT_APP_NCP=OFF -DOT_APP_RCP=OFF \
@@ -203,6 +206,7 @@ setup_infraif()
 test_setup()
 {
     executable_or_die "${OTBR_AGENT_PATH}"
+    executable_or_die "${OT_CTL}"
 
     # Remove flashes
     sudo rm -vrf "${TEST_BASE}/tmp"
@@ -215,6 +219,7 @@ test_setup()
     executable_or_die "${ot_ncp}"
 
     export EXP_OTBR_AGENT_PATH="${OTBR_AGENT_PATH}"
+    export EXP_OT_CTL_PATH="${OT_CTL}"
     export EXP_OT_CLI_PATH="${ot_cli}"
     export EXP_OT_NCP_PATH="${ot_ncp}"
 
@@ -246,6 +251,7 @@ test_teardown()
     write_syslog "EXIT ${EXIT_CODE} - output logs"
 
     sudo pkill -f "${OTBR_AGENT}" || true
+    sudo pkill -f "${OT_CTL}" || true
     sudo pkill -f "${OT_CLI}" || true
     sudo pkill -f "${OT_NCP}" || true
     wait