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#
# Copyright (C) 2013 Intel Corporation
#
# SPDX-License-Identifier: MIT
#
# Some custom decorators that can be used by unittests
# Most useful is skipUnlessPassed which can be used for
# creating dependecies between two test methods.
import os
import logging
import sys
import unittest
import threading
import signal
from functools import wraps
class testcase(object):
def __init__(self, test_case):
self.test_case = test_case
def __call__(self, func):
@wraps(func)
def wrapped_f(*args, **kwargs):
return func(*args, **kwargs)
wrapped_f.test_case = self.test_case
wrapped_f.__name__ = func.__name__
return wrapped_f
class NoParsingFilter(logging.Filter):
def filter(self, record):
return record.levelno == 100
import inspect
def LogResults(original_class):
orig_method = original_class.run
from time import strftime, gmtime
caller = os.path.basename(sys.argv[0])
timestamp = strftime('%Y%m%d%H%M%S',gmtime())
logfile = os.path.join(os.getcwd(),'results-'+caller+'.'+timestamp+'.log')
linkfile = os.path.join(os.getcwd(),'results-'+caller+'.log')
def get_class_that_defined_method(meth):
if inspect.ismethod(meth):
for cls in inspect.getmro(meth.__self__.__class__):
if cls.__dict__.get(meth.__name__) is meth:
return cls
meth = meth.__func__ # fallback to __qualname__ parsing
if inspect.isfunction(meth):
cls = getattr(inspect.getmodule(meth),
meth.__qualname__.split('.<locals>', 1)[0].rsplit('.', 1)[0])
if isinstance(cls, type):
return cls
return None
#rewrite the run method of unittest.TestCase to add testcase logging
def run(self, result, *args, **kws):
orig_method(self, result, *args, **kws)
passed = True
testMethod = getattr(self, self._testMethodName)
#if test case is decorated then use it's number, else use it's name
try:
test_case = testMethod.test_case
except AttributeError:
test_case = self._testMethodName
class_name = str(get_class_that_defined_method(testMethod)).split("'")[1]
#create custom logging level for filtering.
custom_log_level = 100
logging.addLevelName(custom_log_level, 'RESULTS')
def results(self, message, *args, **kws):
if self.isEnabledFor(custom_log_level):
self.log(custom_log_level, message, *args, **kws)
logging.Logger.results = results
logging.basicConfig(filename=logfile,
filemode='w',
format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
datefmt='%H:%M:%S',
level=custom_log_level)
for handler in logging.root.handlers:
handler.addFilter(NoParsingFilter())
local_log = logging.getLogger(caller)
#check status of tests and record it
tcid = self.id()
for (name, msg) in result.errors:
if tcid == name.id():
local_log.results("Testcase "+str(test_case)+": ERROR")
local_log.results("Testcase "+str(test_case)+":\n"+msg)
passed = False
for (name, msg) in result.failures:
if tcid == name.id():
local_log.results("Testcase "+str(test_case)+": FAILED")
local_log.results("Testcase "+str(test_case)+":\n"+msg)
passed = False
for (name, msg) in result.skipped:
if tcid == name.id():
local_log.results("Testcase "+str(test_case)+": SKIPPED")
passed = False
if passed:
local_log.results("Testcase "+str(test_case)+": PASSED")
# XXX: In order to avoid race condition when test if exists the linkfile
# use bb.utils.lock, the best solution is to create a unique name for the
# link file.
try:
import bb
has_bb = True
lockfilename = linkfile + '.lock'
except ImportError:
has_bb = False
if has_bb:
lf = bb.utils.lockfile(lockfilename, block=True)
# Create symlink to the current log
if os.path.lexists(linkfile):
os.remove(linkfile)
os.symlink(logfile, linkfile)
if has_bb:
bb.utils.unlockfile(lf)
original_class.run = run
return original_class
class TimeOut(BaseException):
pass
def timeout(seconds):
def decorator(fn):
if hasattr(signal, 'alarm'):
@wraps(fn)
def wrapped_f(*args, **kw):
current_frame = sys._getframe()
def raiseTimeOut(signal, frame):
if frame is not current_frame:
raise TimeOut('%s seconds' % seconds)
prev_handler = signal.signal(signal.SIGALRM, raiseTimeOut)
try:
signal.alarm(seconds)
return fn(*args, **kw)
finally:
signal.alarm(0)
signal.signal(signal.SIGALRM, prev_handler)
return wrapped_f
else:
return fn
return decorator
__tag_prefix = "tag__"
def tag(*args, **kwargs):
"""Decorator that adds attributes to classes or functions
for use with the Attribute (-a) plugin.
"""
def wrap_ob(ob):
for name in args:
setattr(ob, __tag_prefix + name, True)
for name, value in kwargs.items():
setattr(ob, __tag_prefix + name, value)
return ob
return wrap_ob
def gettag(obj, key, default=None):
key = __tag_prefix + key
if not isinstance(obj, unittest.TestCase):
return getattr(obj, key, default)
tc_method = getattr(obj, obj._testMethodName)
ret = getattr(tc_method, key, getattr(obj, key, default))
return ret
def getAllTags(obj):
def __gettags(o):
r = {k[len(__tag_prefix):]:getattr(o,k) for k in dir(o) if k.startswith(__tag_prefix)}
return r
if not isinstance(obj, unittest.TestCase):
return __gettags(obj)
tc_method = getattr(obj, obj._testMethodName)
ret = __gettags(obj)
ret.update(__gettags(tc_method))
return ret
def timeout_handler(seconds):
def decorator(fn):
if hasattr(signal, 'alarm'):
@wraps(fn)
def wrapped_f(self, *args, **kw):
current_frame = sys._getframe()
def raiseTimeOut(signal, frame):
if frame is not current_frame:
try:
self.target.restart()
raise TimeOut('%s seconds' % seconds)
except:
raise TimeOut('%s seconds' % seconds)
prev_handler = signal.signal(signal.SIGALRM, raiseTimeOut)
try:
signal.alarm(seconds)
return fn(self, *args, **kw)
finally:
signal.alarm(0)
signal.signal(signal.SIGALRM, prev_handler)
return wrapped_f
else:
return fn
return decorator
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