From: Zhang Xiaoxu <[email protected]>
Check kernel message before return from test case, if bug
or error in kernel message, fail the test case.
Signed-off-by: Wei Yongjun <[email protected]>
Signed-off-by: Zhang Xiaoxu <[email protected]>
---
tools/testing/kddv/kddv/core/ddunit.py | 12 ++++++++
tools/testing/kddv/kddv/core/dmesg.py | 41 +++++++++++++++++++++++++
tools/testing/kddv/kddv/core/environ.py | 28 +++++++++++++++++
3 files changed, 81 insertions(+)
create mode 100755 tools/testing/kddv/kddv/core/dmesg.py
create mode 100755 tools/testing/kddv/kddv/core/environ.py
diff --git a/tools/testing/kddv/kddv/core/ddunit.py b/tools/testing/kddv/kddv/core/ddunit.py
index fd4ab9fe048c..197300f8a6d4 100755
--- a/tools/testing/kddv/kddv/core/ddunit.py
+++ b/tools/testing/kddv/kddv/core/ddunit.py
@@ -10,6 +10,7 @@ import logging
import unittest
from .model import DriverModel
+from .environ import environ
logger = logging.getLogger(__name__)
@@ -25,12 +26,18 @@ class DriverTest(unittest.TestCase, DriverModel):
except:
self.skipTest(f"Module {self.module_name} not found")
self.mockup.load()
+ environ.setup()
def tearDown(self):
+ environ.teardown()
self.mockup.unload()
self.driver.teardown()
super().tearDown()
+ def _callTestMethod(self, method):
+ method()
+ self.assertFault()
+
def assertRegEqual(self, reg, data, msg=None):
value = self.read_reg(reg)
self.assertEqual(value, data, msg)
@@ -42,3 +49,8 @@ class DriverTest(unittest.TestCase, DriverModel):
def assertRegsEqual(self, reg, data, msg=None):
value = self.read_regs(reg, len(data))
self.assertListEqual(value, data, msg)
+
+ def assertFault(self):
+ msg = environ.check_failure()
+ if msg:
+ raise self.failureException(msg)
diff --git a/tools/testing/kddv/kddv/core/dmesg.py b/tools/testing/kddv/kddv/core/dmesg.py
new file mode 100755
index 000000000000..e528b6164f46
--- /dev/null
+++ b/tools/testing/kddv/kddv/core/dmesg.py
@@ -0,0 +1,41 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+#
+# Kernel device driver verification
+#
+# Copyright (C) 2022-2023 Huawei Technologies Co., Ltd
+# Author: Wei Yongjun <[email protected]>
+
+import re
+import logging
+import subprocess
+
+KERNEL_PANIC = [
+ "BUG:",
+ "WARNING:",
+ "INFO:",
+ "[kK]ernel BUG",
+ "PANIC: double fault",
+ "divide error:",
+ "UBSAN:",
+ "Unable to handle kernel",
+ "general protection fault",
+]
+
+logger = logging.getLogger(__name__)
+
+class KernelMessage(object):
+
+ def setup(self):
+ subprocess.run(["/usr/bin/dmesg", "-C"])
+
+ def teardown(self):
+ subprocess.run(["/usr/bin/dmesg", "-C"])
+
+ def check_failure(self):
+ logger.debug('check kernel message')
+ kmsg = subprocess.check_output(["/usr/bin/dmesg", "-c"])
+ regex_pattern = re.compile("|".join(KERNEL_PANIC))
+ if regex_pattern.search(kmsg.decode()):
+ return kmsg.decode()
+ return None
diff --git a/tools/testing/kddv/kddv/core/environ.py b/tools/testing/kddv/kddv/core/environ.py
new file mode 100755
index 000000000000..d57e33a6ac6e
--- /dev/null
+++ b/tools/testing/kddv/kddv/core/environ.py
@@ -0,0 +1,28 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+#
+# Kernel device driver verification
+#
+# Copyright (C) 2022-2023 Huawei Technologies Co., Ltd
+# Author: Wei Yongjun <[email protected]>
+
+import logging
+
+from .dmesg import KernelMessage
+
+logger = logging.getLogger(__name__)
+
+class Environ(object):
+ def __init__(self):
+ self.kmsg = KernelMessage()
+
+ def setup(self):
+ self.kmsg.setup()
+
+ def teardown(self):
+ self.kmsg.teardown()
+
+ def check_failure(self):
+ return self.kmsg.check_failure()
+
+environ = Environ()
--
2.34.1