tests/functional/riscv64: Silence warnings from Pylint in the boston test

Pylint complains:

 tests/functional/riscv64/test_boston.py:1:0: C0114:
  Missing module docstring (missing-module-docstring)
 tests/functional/riscv64/test_boston.py:95:8: C0415:
  Import outside toplevel (subprocess.run, subprocess.PIPE) (import-outside-toplevel)
 tests/functional/riscv64/test_boston.py:112:17: W1510:
  'subprocess.run' used without explicitly defining the value for 'check'. (subprocess-run-check)
 tests/functional/riscv64/test_boston.py:95:8: W0611:
  Unused PIPE imported from subprocess (unused-import)

Rework the code a little bit to make the linter happy.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Chao Liu <chao.liu.zevorn@gmail.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20260116095615.269199-1-thuth@redhat.com>

diff --git a/tests/functional/riscv64/test_boston.py b/tests/functional/riscv64/test_boston.py
index 385de6a61dfcec4b9e2553afc7a0210c6c8bf869..2582df96f21cfe59765809f04f8dd296c5d9e06e 100755 (executable)
--- a/tests/functional/riscv64/test_boston.py
+++ b/tests/functional/riscv64/test_boston.py
@@ -1,11 +1,14 @@
 #!/usr/bin/env python3
 #
-# Boston board test for RISC-V P8700 processor by MIPS
-#
 # Copyright (c) 2025 MIPS
 #
 # SPDX-License-Identifier: GPL-2.0-or-later
 #
+"""
+Boston board test for RISC-V P8700 processor by MIPS
+"""
+
+from subprocess import run
 
 from qemu_test import QemuSystemTest, Asset
 from qemu_test import wait_for_console_pattern
@@ -92,7 +95,6 @@ class RiscvBostonTest(QemuSystemTest):
         """
         Test that 65 CPUs is rejected as invalid (negative test case)
         """
-        from subprocess import run, PIPE
 
         fw_payload_path = self.ASSET_FW_PAYLOAD.fetch()
         rootfs_path = self.ASSET_ROOTFS.fetch()
@@ -109,7 +111,8 @@ class RiscvBostonTest(QemuSystemTest):
         ]
 
         # Run QEMU and expect it to fail immediately.
-        result = run(cmd, capture_output=True, text=True, timeout=5)
+        result = run(cmd, capture_output=True, text=True, timeout=5,
+                     check=False)
 
         # Check that QEMU exited with error code 1
         self.assertEqual(result.returncode, 1,