add vpp debugging support to test framework
improve test documentation Change-Id: Ia9678aa2532ecb4cb33736aedb4a31aa3f2a3f93 Signed-off-by: Klement Sekera <ksekera@cisco.com>
This commit is contained in:
Klement Sekera
committed by
Damjan Marion
Damjan Marion
parent
cede3798b7
commit
277b89c946
112
test/hook.py
112
test/hook.py
@ -1,7 +1,8 @@
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import signal
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import os
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import pexpect
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from logging import *
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import traceback
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from log import *
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class Hook(object):
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@ -9,6 +10,9 @@ class Hook(object):
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Generic hooks before/after API/CLI calls
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"""
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def __init__(self, logger):
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self.logger = logger
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def before_api(self, api_name, api_args):
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"""
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Function called before API call
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@ -17,7 +21,8 @@ class Hook(object):
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@param api_name: name of the API
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@param api_args: tuple containing the API arguments
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"""
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debug("API: %s (%s)" % (api_name, api_args))
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self.logger.debug("API: %s (%s)" %
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(api_name, api_args), extra={'color': RED})
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def after_api(self, api_name, api_args):
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"""
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@ -35,7 +40,7 @@ class Hook(object):
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@param cli: CLI string
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"""
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debug("CLI: %s" % (cli))
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self.logger.debug("CLI: %s" % (cli), extra={'color': RED})
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def after_cli(self, cli):
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"""
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@ -54,6 +59,7 @@ class PollHook(Hook):
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def __init__(self, testcase):
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self.vpp_dead = False
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self.testcase = testcase
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self.logger = testcase.logger
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def spawn_gdb(self, gdb_path, core_path):
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gdb_cmdline = gdb_path + ' ' + self.testcase.vpp_bin + ' ' + core_path
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@ -74,11 +80,12 @@ class PollHook(Hook):
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self.spawn_gdb(gdb_path, core_path)
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return
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else:
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error("Debugger '%s' does not exist or is not an executable.." %
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gdb_path)
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self.logger.error(
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"Debugger '%s' does not exist or is not an executable.." %
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gdb_path)
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critical('core file present, debug with: gdb ' +
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self.testcase.vpp_bin + ' ' + core_path)
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self.logger.critical('core file present, debug with: gdb ' +
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self.testcase.vpp_bin + ' ' + core_path)
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def poll_vpp(self):
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"""
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@ -97,7 +104,7 @@ class PollHook(Hook):
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msg = "VPP subprocess died unexpectedly with returncode %d [%s]" % (
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self.testcase.vpp.returncode,
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signaldict[abs(self.testcase.vpp.returncode)])
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critical(msg)
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self.logger.critical(msg)
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core_path = self.testcase.tempdir + '/core'
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if os.path.isfile(core_path):
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self.on_crash(core_path)
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@ -126,3 +133,92 @@ class PollHook(Hook):
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"""
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super(PollHook, self).after_cli(cli)
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self.poll_vpp()
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class StepHook(PollHook):
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""" Hook which requires user to press ENTER before doing any API/CLI """
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def __init__(self, testcase):
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self.skip_stack = None
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self.skip_num = None
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self.skip_count = 0
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super(StepHook, self).__init__(testcase)
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def skip(self):
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if self.skip_stack is None:
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return False
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stack = traceback.extract_stack()
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counter = 0
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skip = True
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for e in stack:
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if counter > self.skip_num:
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break
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if e[0] != self.skip_stack[counter][0]:
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skip = False
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if e[1] != self.skip_stack[counter][1]:
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skip = False
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counter += 1
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if skip:
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self.skip_count += 1
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return True
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else:
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print("%d API/CLI calls skipped in specified stack "
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"frame" % self.skip_count)
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self.skip_count = 0
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self.skip_stack = None
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self.skip_num = None
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return False
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def user_input(self):
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print('number\tfunction\tfile\tcode')
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counter = 0
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stack = traceback.extract_stack()
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for e in stack:
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print('%02d.\t%s\t%s:%d\t[%s]' % (counter, e[2], e[0], e[1], e[3]))
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counter += 1
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print(single_line_delim)
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print("You can enter a number of stack frame chosen from above")
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print("Calls in/below that stack frame will be not be stepped anymore")
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print(single_line_delim)
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while True:
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choice = raw_input("Enter your choice, if any, and press ENTER to "
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"continue running the testcase...")
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if choice == "":
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choice = None
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try:
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if choice is not None:
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num = int(choice)
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except:
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print("Invalid input")
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continue
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if choice is not None and (num < 0 or num >= len(stack)):
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print("Invalid choice")
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continue
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break
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if choice is not None:
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self.skip_stack = stack
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self.skip_num = num
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def before_cli(self, cli):
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""" Wait for ENTER before executing CLI """
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if self.skip():
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print("Skip pause before executing CLI: %s" % cli)
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else:
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print(double_line_delim)
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print("Test paused before executing CLI: %s" % cli)
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print(single_line_delim)
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self.user_input()
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super(StepHook, self).before_cli(cli)
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def before_api(self, api_name, api_args):
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""" Wait for ENTER before executing API """
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if self.skip():
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print("Skip pause before executing API: %s (%s)"
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% (api_name, api_args))
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else:
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print(double_line_delim)
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print("Test paused before executing API: %s (%s)"
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% (api_name, api_args))
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print(single_line_delim)
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self.user_input()
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super(StepHook, self).before_api(api_name, api_args)
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