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Merge #11023: [tests] Add option to attach a python debugger if functional test fails

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cc5d38f4b Add option to attach a python debugger if test fails (John Newbery)

Pull request description:

  Adds a simple option to the test_framework to attach pdb if the test fails.

  Helpful for catching and debugging intermittent failures: Run the test in a loop with this option. The first failure will cause execution to pause and nodes will be left running for interactive debugging.

  @sdaftuar

Tree-SHA512: 01cfae15fa3f04ed6ec6a99fef60a6c6a59723429309e81eacd6767caf12f5758f59b337804291ecab33a38a2958f36e2b513d201bee72a2eeb207a67046f952
This commit is contained in:
MarcoFalke 2017-08-11 18:09:51 +02:00
commit bf74d377fb
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1 changed files with 7 additions and 0 deletions
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7
test/functional/test_framework/test_framework.py
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@ -11,6 +11,7 @@ import http.client
import logging import logging
import optparse import optparse
import os import os
import pdb
import shutil import shutil
import subprocess import subprocess
import sys import sys
@ -125,6 +126,8 @@ class BitcoinTestFramework(object):
help="Write tested RPC commands into this directory") help="Write tested RPC commands into this directory")
parser.add_option("--configfile", dest="configfile", parser.add_option("--configfile", dest="configfile",
help="Location of the test framework config file") help="Location of the test framework config file")
parser.add_option("--pdbonfailure", dest="pdbonfailure", default=False, action="store_true",
help="Attach a python debugger if test fails")
self.add_options(parser) self.add_options(parser)
(self.options, self.args) = parser.parse_args() (self.options, self.args) = parser.parse_args()
@ -162,6 +165,10 @@ class BitcoinTestFramework(object):
except KeyboardInterrupt as e: except KeyboardInterrupt as e:
self.log.warning("Exiting after keyboard interrupt") self.log.warning("Exiting after keyboard interrupt")
if success == TestStatus.FAILED and self.options.pdbonfailure:
print("Testcase failed. Attaching python debugger. Enter ? for help")
pdb.set_trace()
if not self.options.noshutdown: if not self.options.noshutdown:
self.log.info("Stopping nodes") self.log.info("Stopping nodes")
if self.nodes: if self.nodes: