2011-03-31 07:31:06 +08:00
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from contextlib import contextmanager
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2011-04-08 19:39:59 +08:00
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import datetime
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2011-03-31 07:31:06 +08:00
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import faulthandler
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2011-06-29 19:44:05 +08:00
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import os
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2011-03-31 07:31:06 +08:00
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import re
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import signal
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import subprocess
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import sys
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from test import support, script_helper
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2012-07-31 08:55:49 +08:00
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from test.script_helper import assert_python_ok
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2011-03-31 07:31:06 +08:00
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import tempfile
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import unittest
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2011-04-07 17:50:25 +08:00
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try:
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import threading
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HAVE_THREADS = True
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except ImportError:
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HAVE_THREADS = False
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2011-04-01 21:37:12 +08:00
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TIMEOUT = 0.5
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2011-03-31 07:31:06 +08:00
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try:
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from resource import setrlimit, RLIMIT_CORE, error as resource_error
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except ImportError:
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prepare_subprocess = None
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else:
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def prepare_subprocess():
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# don't create core file
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try:
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setrlimit(RLIMIT_CORE, (0, 0))
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except (ValueError, resource_error):
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pass
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2011-06-01 19:49:12 +08:00
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def expected_traceback(lineno1, lineno2, header, min_count=1):
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2011-03-31 07:31:06 +08:00
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regex = header
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2011-04-01 04:35:49 +08:00
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regex += ' File "<string>", line %s in func\n' % lineno1
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regex += ' File "<string>", line %s in <module>' % lineno2
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2011-06-01 19:49:12 +08:00
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if 1 < min_count:
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return '^' + (regex + '\n') * (min_count - 1) + regex
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else:
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return '^' + regex + '$'
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2011-03-31 07:31:06 +08:00
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@contextmanager
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def temporary_filename():
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filename = tempfile.mktemp()
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try:
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yield filename
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finally:
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support.unlink(filename)
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class FaultHandlerTests(unittest.TestCase):
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2011-03-31 19:29:56 +08:00
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def get_output(self, code, filename=None):
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2011-03-31 07:31:06 +08:00
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"""
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Run the specified code in Python (in a new child process) and read the
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output from the standard error or from a file (if filename is set).
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Return the output lines as a list.
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Strip the reference count from the standard error for Python debug
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build, and replace "Current thread 0x00007f8d8fbd9700" by "Current
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thread XXX".
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"""
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options = {}
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if prepare_subprocess:
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options['preexec_fn'] = prepare_subprocess
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process = script_helper.spawn_python('-c', code, **options)
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stdout, stderr = process.communicate()
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exitcode = process.wait()
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2011-04-01 00:15:52 +08:00
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output = support.strip_python_stderr(stdout)
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output = output.decode('ascii', 'backslashreplace')
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2011-03-31 07:31:06 +08:00
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if filename:
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2011-04-01 00:15:52 +08:00
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self.assertEqual(output, '')
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2011-03-31 07:31:06 +08:00
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with open(filename, "rb") as fp:
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output = fp.read()
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2011-04-01 00:15:52 +08:00
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output = output.decode('ascii', 'backslashreplace')
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2011-03-31 07:31:06 +08:00
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output = re.sub('Current thread 0x[0-9a-f]+',
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'Current thread XXX',
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output)
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2011-03-31 19:29:56 +08:00
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return output.splitlines(), exitcode
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2011-03-31 07:31:06 +08:00
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def check_fatal_error(self, code, line_number, name_regex,
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2011-05-07 18:43:00 +08:00
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filename=None, all_threads=True, other_regex=None):
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2011-03-31 07:31:06 +08:00
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"""
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Check that the fault handler for fatal errors is enabled and check the
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traceback from the child process output.
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Raise an error if the output doesn't match the expected format.
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"""
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if all_threads:
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header = 'Current thread XXX'
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else:
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header = 'Traceback (most recent call first)'
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regex = """
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^Fatal Python error: {name}
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{header}:
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2012-05-06 18:28:46 +08:00
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File "<string>", line {lineno} in <module>
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2011-03-31 07:31:06 +08:00
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""".strip()
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regex = regex.format(
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lineno=line_number,
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name=name_regex,
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header=re.escape(header))
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2011-03-31 17:34:08 +08:00
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if other_regex:
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regex += '|' + other_regex
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2013-03-06 02:26:17 +08:00
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with support.suppress_crash_popup():
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2013-03-06 02:31:34 +08:00
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output, exitcode = self.get_output(code, filename)
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2011-03-31 07:31:06 +08:00
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output = '\n'.join(output)
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self.assertRegex(output, regex)
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2011-03-31 19:29:56 +08:00
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self.assertNotEqual(exitcode, 0)
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2011-03-31 07:31:06 +08:00
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2013-07-04 04:29:42 +08:00
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@unittest.skipIf(sys.platform.startswith('aix'),
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"the first page of memory is a mapped read-only on AIX")
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2011-03-31 07:31:06 +08:00
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def test_read_null(self):
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self.check_fatal_error("""
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import faulthandler
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faulthandler.enable()
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faulthandler._read_null()
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""".strip(),
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3,
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2011-08-09 04:43:45 +08:00
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# Issue #12700: Read NULL raises SIGILL on Mac OS X Lion
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'(?:Segmentation fault|Bus error|Illegal instruction)')
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2011-03-31 07:31:06 +08:00
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def test_sigsegv(self):
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self.check_fatal_error("""
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import faulthandler
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faulthandler.enable()
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faulthandler._sigsegv()
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""".strip(),
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3,
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'Segmentation fault')
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2011-04-01 18:13:55 +08:00
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def test_sigabrt(self):
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self.check_fatal_error("""
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import faulthandler
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faulthandler.enable()
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faulthandler._sigabrt()
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""".strip(),
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3,
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'Aborted')
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2011-03-31 07:31:06 +08:00
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@unittest.skipIf(sys.platform == 'win32',
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"SIGFPE cannot be caught on Windows")
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def test_sigfpe(self):
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self.check_fatal_error("""
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import faulthandler
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faulthandler.enable()
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faulthandler._sigfpe()
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""".strip(),
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3,
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'Floating point exception')
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@unittest.skipIf(not hasattr(faulthandler, '_sigbus'),
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"need faulthandler._sigbus()")
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def test_sigbus(self):
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self.check_fatal_error("""
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import faulthandler
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faulthandler.enable()
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faulthandler._sigbus()
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""".strip(),
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3,
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'Bus error')
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@unittest.skipIf(not hasattr(faulthandler, '_sigill'),
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"need faulthandler._sigill()")
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def test_sigill(self):
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self.check_fatal_error("""
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import faulthandler
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faulthandler.enable()
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faulthandler._sigill()
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""".strip(),
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3,
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'Illegal instruction')
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def test_fatal_error(self):
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self.check_fatal_error("""
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import faulthandler
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faulthandler._fatal_error(b'xyz')
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""".strip(),
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2,
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'xyz')
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2011-09-02 05:08:21 +08:00
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@unittest.skipIf(sys.platform.startswith('openbsd') and HAVE_THREADS,
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"Issue #12868: sigaltstack() doesn't work on "
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"OpenBSD if Python is compiled with pthread")
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2011-03-31 07:31:06 +08:00
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@unittest.skipIf(not hasattr(faulthandler, '_stack_overflow'),
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'need faulthandler._stack_overflow()')
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def test_stack_overflow(self):
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self.check_fatal_error("""
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import faulthandler
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faulthandler.enable()
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faulthandler._stack_overflow()
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""".strip(),
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3,
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2011-03-31 17:34:08 +08:00
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'(?:Segmentation fault|Bus error)',
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other_regex='unable to raise a stack overflow')
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2011-03-31 07:31:06 +08:00
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def test_gil_released(self):
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self.check_fatal_error("""
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import faulthandler
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faulthandler.enable()
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faulthandler._read_null(True)
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""".strip(),
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3,
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2011-08-09 04:43:45 +08:00
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'(?:Segmentation fault|Bus error|Illegal instruction)')
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2011-03-31 07:31:06 +08:00
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def test_enable_file(self):
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with temporary_filename() as filename:
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self.check_fatal_error("""
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import faulthandler
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output = open({filename}, 'wb')
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faulthandler.enable(output)
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2013-06-18 05:37:59 +08:00
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faulthandler._sigsegv()
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2011-03-31 07:31:06 +08:00
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""".strip().format(filename=repr(filename)),
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4,
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2013-06-18 05:37:59 +08:00
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'Segmentation fault',
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2011-03-31 07:31:06 +08:00
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filename=filename)
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2011-05-07 18:43:00 +08:00
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def test_enable_single_thread(self):
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2011-03-31 07:31:06 +08:00
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self.check_fatal_error("""
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import faulthandler
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2011-05-07 18:43:00 +08:00
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faulthandler.enable(all_threads=False)
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2013-06-18 05:37:59 +08:00
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faulthandler._sigsegv()
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2011-03-31 07:31:06 +08:00
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""".strip(),
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3,
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2013-06-18 05:37:59 +08:00
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'Segmentation fault',
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2011-05-07 18:43:00 +08:00
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all_threads=False)
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2011-03-31 07:31:06 +08:00
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def test_disable(self):
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code = """
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import faulthandler
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faulthandler.enable()
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faulthandler.disable()
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2013-06-18 05:37:59 +08:00
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faulthandler._sigsegv()
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2011-03-31 07:31:06 +08:00
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""".strip()
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not_expected = 'Fatal Python error'
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2013-03-06 02:26:17 +08:00
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with support.suppress_crash_popup():
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stderr, exitcode = self.get_output(code)
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2011-03-31 07:31:06 +08:00
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stder = '\n'.join(stderr)
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self.assertTrue(not_expected not in stderr,
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"%r is present in %r" % (not_expected, stderr))
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2011-03-31 19:29:56 +08:00
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self.assertNotEqual(exitcode, 0)
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2011-03-31 07:31:06 +08:00
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def test_is_enabled(self):
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2011-06-29 19:44:05 +08:00
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orig_stderr = sys.stderr
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2011-03-31 07:31:06 +08:00
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try:
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2011-06-29 19:44:05 +08:00
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# regrtest may replace sys.stderr by io.StringIO object, but
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# faulthandler.enable() requires that sys.stderr has a fileno()
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# method
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2011-06-30 05:24:31 +08:00
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sys.stderr = sys.__stderr__
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2011-06-29 19:44:05 +08:00
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was_enabled = faulthandler.is_enabled()
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try:
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2011-03-31 07:31:06 +08:00
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faulthandler.enable()
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2011-06-29 19:44:05 +08:00
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self.assertTrue(faulthandler.is_enabled())
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2011-03-31 07:31:06 +08:00
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faulthandler.disable()
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2011-06-29 19:44:05 +08:00
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self.assertFalse(faulthandler.is_enabled())
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finally:
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if was_enabled:
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faulthandler.enable()
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else:
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faulthandler.disable()
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finally:
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sys.stderr = orig_stderr
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2011-03-31 07:31:06 +08:00
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2012-07-31 08:55:49 +08:00
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def test_disabled_by_default(self):
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# By default, the module should be disabled
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code = "import faulthandler; print(faulthandler.is_enabled())"
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rc, stdout, stderr = assert_python_ok("-c", code)
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stdout = (stdout + stderr).strip()
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self.assertEqual(stdout, b"False")
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def test_sys_xoptions(self):
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# Test python -X faulthandler
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code = "import faulthandler; print(faulthandler.is_enabled())"
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rc, stdout, stderr = assert_python_ok("-X", "faulthandler", "-c", code)
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stdout = (stdout + stderr).strip()
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self.assertEqual(stdout, b"True")
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2011-03-31 07:31:06 +08:00
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def check_dump_traceback(self, filename):
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"""
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Explicitly call dump_traceback() function and check its output.
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Raise an error if the output doesn't match the expected format.
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"""
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code = """
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import faulthandler
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def funcB():
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if {has_filename}:
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with open({filename}, "wb") as fp:
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2011-05-07 18:43:00 +08:00
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faulthandler.dump_traceback(fp, all_threads=False)
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2011-03-31 07:31:06 +08:00
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else:
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2011-05-07 18:43:00 +08:00
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faulthandler.dump_traceback(all_threads=False)
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2011-03-31 07:31:06 +08:00
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def funcA():
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funcB()
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funcA()
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""".strip()
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code = code.format(
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filename=repr(filename),
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has_filename=bool(filename),
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)
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if filename:
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lineno = 6
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else:
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lineno = 8
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expected = [
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'Traceback (most recent call first):',
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' File "<string>", line %s in funcB' % lineno,
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' File "<string>", line 11 in funcA',
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' File "<string>", line 13 in <module>'
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]
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2011-03-31 19:29:56 +08:00
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trace, exitcode = self.get_output(code, filename)
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2011-03-31 07:31:06 +08:00
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self.assertEqual(trace, expected)
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2011-03-31 19:29:56 +08:00
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self.assertEqual(exitcode, 0)
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2011-03-31 07:31:06 +08:00
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def test_dump_traceback(self):
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self.check_dump_traceback(None)
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2011-04-01 00:15:52 +08:00
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def test_dump_traceback_file(self):
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2011-03-31 07:31:06 +08:00
|
|
|
with temporary_filename() as filename:
|
|
|
|
self.check_dump_traceback(filename)
|
|
|
|
|
2012-08-02 01:45:34 +08:00
|
|
|
def test_truncate(self):
|
|
|
|
maxlen = 500
|
|
|
|
func_name = 'x' * (maxlen + 50)
|
|
|
|
truncated = 'x' * maxlen + '...'
|
|
|
|
code = """
|
|
|
|
import faulthandler
|
|
|
|
|
|
|
|
def {func_name}():
|
|
|
|
faulthandler.dump_traceback(all_threads=False)
|
|
|
|
|
|
|
|
{func_name}()
|
|
|
|
""".strip()
|
|
|
|
code = code.format(
|
|
|
|
func_name=func_name,
|
|
|
|
)
|
|
|
|
expected = [
|
|
|
|
'Traceback (most recent call first):',
|
|
|
|
' File "<string>", line 4 in %s' % truncated,
|
|
|
|
' File "<string>", line 6 in <module>'
|
|
|
|
]
|
|
|
|
trace, exitcode = self.get_output(code)
|
|
|
|
self.assertEqual(trace, expected)
|
|
|
|
self.assertEqual(exitcode, 0)
|
|
|
|
|
2011-04-07 17:50:25 +08:00
|
|
|
@unittest.skipIf(not HAVE_THREADS, 'need threads')
|
2011-03-31 07:31:06 +08:00
|
|
|
def check_dump_traceback_threads(self, filename):
|
|
|
|
"""
|
|
|
|
Call explicitly dump_traceback(all_threads=True) and check the output.
|
|
|
|
Raise an error if the output doesn't match the expected format.
|
|
|
|
"""
|
|
|
|
code = """
|
|
|
|
import faulthandler
|
|
|
|
from threading import Thread, Event
|
|
|
|
import time
|
|
|
|
|
|
|
|
def dump():
|
|
|
|
if {filename}:
|
|
|
|
with open({filename}, "wb") as fp:
|
|
|
|
faulthandler.dump_traceback(fp, all_threads=True)
|
|
|
|
else:
|
|
|
|
faulthandler.dump_traceback(all_threads=True)
|
|
|
|
|
|
|
|
class Waiter(Thread):
|
|
|
|
# avoid blocking if the main thread raises an exception.
|
|
|
|
daemon = True
|
|
|
|
|
|
|
|
def __init__(self):
|
|
|
|
Thread.__init__(self)
|
|
|
|
self.running = Event()
|
|
|
|
self.stop = Event()
|
|
|
|
|
|
|
|
def run(self):
|
|
|
|
self.running.set()
|
|
|
|
self.stop.wait()
|
|
|
|
|
|
|
|
waiter = Waiter()
|
|
|
|
waiter.start()
|
|
|
|
waiter.running.wait()
|
|
|
|
dump()
|
|
|
|
waiter.stop.set()
|
|
|
|
waiter.join()
|
|
|
|
""".strip()
|
|
|
|
code = code.format(filename=repr(filename))
|
2011-03-31 19:29:56 +08:00
|
|
|
output, exitcode = self.get_output(code, filename)
|
2011-03-31 07:31:06 +08:00
|
|
|
output = '\n'.join(output)
|
|
|
|
if filename:
|
|
|
|
lineno = 8
|
|
|
|
else:
|
|
|
|
lineno = 10
|
|
|
|
regex = """
|
|
|
|
^Thread 0x[0-9a-f]+:
|
2011-04-04 00:41:22 +08:00
|
|
|
(?: File ".*threading.py", line [0-9]+ in [_a-z]+
|
|
|
|
){{1,3}} File "<string>", line 23 in run
|
2011-03-31 07:31:06 +08:00
|
|
|
File ".*threading.py", line [0-9]+ in _bootstrap_inner
|
|
|
|
File ".*threading.py", line [0-9]+ in _bootstrap
|
|
|
|
|
|
|
|
Current thread XXX:
|
|
|
|
File "<string>", line {lineno} in dump
|
|
|
|
File "<string>", line 28 in <module>$
|
|
|
|
""".strip()
|
|
|
|
regex = regex.format(lineno=lineno)
|
|
|
|
self.assertRegex(output, regex)
|
2011-03-31 19:29:56 +08:00
|
|
|
self.assertEqual(exitcode, 0)
|
2011-03-31 07:31:06 +08:00
|
|
|
|
|
|
|
def test_dump_traceback_threads(self):
|
|
|
|
self.check_dump_traceback_threads(None)
|
2011-04-01 00:15:52 +08:00
|
|
|
|
|
|
|
def test_dump_traceback_threads_file(self):
|
2011-03-31 07:31:06 +08:00
|
|
|
with temporary_filename() as filename:
|
|
|
|
self.check_dump_traceback_threads(filename)
|
|
|
|
|
2012-09-22 14:58:55 +08:00
|
|
|
def _check_dump_traceback_later(self, repeat, cancel, filename, loops):
|
2011-03-31 07:31:06 +08:00
|
|
|
"""
|
|
|
|
Check how many times the traceback is written in timeout x 2.5 seconds,
|
|
|
|
or timeout x 3.5 seconds if cancel is True: 1, 2 or 3 times depending
|
|
|
|
on repeat and cancel options.
|
|
|
|
|
|
|
|
Raise an error if the output doesn't match the expect format.
|
|
|
|
"""
|
2011-04-08 19:39:59 +08:00
|
|
|
timeout_str = str(datetime.timedelta(seconds=TIMEOUT))
|
2011-03-31 07:31:06 +08:00
|
|
|
code = """
|
|
|
|
import faulthandler
|
|
|
|
import time
|
|
|
|
|
2011-04-08 18:57:06 +08:00
|
|
|
def func(timeout, repeat, cancel, file, loops):
|
|
|
|
for loop in range(loops):
|
2012-09-22 14:58:55 +08:00
|
|
|
faulthandler.dump_traceback_later(timeout, repeat=repeat, file=file)
|
2011-04-08 18:57:06 +08:00
|
|
|
if cancel:
|
2012-09-22 14:58:55 +08:00
|
|
|
faulthandler.cancel_dump_traceback_later()
|
2011-06-01 19:49:12 +08:00
|
|
|
time.sleep(timeout * 5)
|
2012-09-22 14:58:55 +08:00
|
|
|
faulthandler.cancel_dump_traceback_later()
|
2011-03-31 07:31:06 +08:00
|
|
|
|
2011-04-01 21:37:12 +08:00
|
|
|
timeout = {timeout}
|
2011-03-31 07:31:06 +08:00
|
|
|
repeat = {repeat}
|
|
|
|
cancel = {cancel}
|
2011-04-08 18:57:06 +08:00
|
|
|
loops = {loops}
|
2011-03-31 07:31:06 +08:00
|
|
|
if {has_filename}:
|
|
|
|
file = open({filename}, "wb")
|
|
|
|
else:
|
|
|
|
file = None
|
2011-04-08 18:57:06 +08:00
|
|
|
func(timeout, repeat, cancel, file, loops)
|
2011-03-31 07:31:06 +08:00
|
|
|
if file is not None:
|
|
|
|
file.close()
|
|
|
|
""".strip()
|
|
|
|
code = code.format(
|
2011-04-08 18:57:06 +08:00
|
|
|
timeout=TIMEOUT,
|
2011-03-31 07:31:06 +08:00
|
|
|
repeat=repeat,
|
|
|
|
cancel=cancel,
|
2011-04-08 18:57:06 +08:00
|
|
|
loops=loops,
|
|
|
|
has_filename=bool(filename),
|
|
|
|
filename=repr(filename),
|
2011-03-31 07:31:06 +08:00
|
|
|
)
|
2011-03-31 19:29:56 +08:00
|
|
|
trace, exitcode = self.get_output(code, filename)
|
2011-03-31 07:31:06 +08:00
|
|
|
trace = '\n'.join(trace)
|
|
|
|
|
2011-04-04 00:45:42 +08:00
|
|
|
if not cancel:
|
2011-04-08 18:57:06 +08:00
|
|
|
count = loops
|
2011-04-04 00:45:42 +08:00
|
|
|
if repeat:
|
2011-04-08 18:57:06 +08:00
|
|
|
count *= 2
|
2011-04-08 19:39:59 +08:00
|
|
|
header = r'Timeout \(%s\)!\nThread 0x[0-9a-f]+:\n' % timeout_str
|
2011-06-01 19:49:12 +08:00
|
|
|
regex = expected_traceback(9, 20, header, min_count=count)
|
2011-04-04 00:45:42 +08:00
|
|
|
self.assertRegex(trace, regex)
|
2011-03-31 07:31:06 +08:00
|
|
|
else:
|
2011-04-04 00:45:42 +08:00
|
|
|
self.assertEqual(trace, '')
|
2011-03-31 19:29:56 +08:00
|
|
|
self.assertEqual(exitcode, 0)
|
2011-03-31 07:31:06 +08:00
|
|
|
|
2012-09-22 14:58:55 +08:00
|
|
|
@unittest.skipIf(not hasattr(faulthandler, 'dump_traceback_later'),
|
|
|
|
'need faulthandler.dump_traceback_later()')
|
|
|
|
def check_dump_traceback_later(self, repeat=False, cancel=False,
|
2011-04-08 18:57:06 +08:00
|
|
|
file=False, twice=False):
|
|
|
|
if twice:
|
|
|
|
loops = 2
|
|
|
|
else:
|
|
|
|
loops = 1
|
2011-03-31 07:31:06 +08:00
|
|
|
if file:
|
|
|
|
with temporary_filename() as filename:
|
2012-09-22 14:58:55 +08:00
|
|
|
self._check_dump_traceback_later(repeat, cancel,
|
2011-04-08 18:57:06 +08:00
|
|
|
filename, loops)
|
2011-03-31 07:31:06 +08:00
|
|
|
else:
|
2012-09-22 14:58:55 +08:00
|
|
|
self._check_dump_traceback_later(repeat, cancel, None, loops)
|
2011-03-31 07:31:06 +08:00
|
|
|
|
2012-09-22 14:58:55 +08:00
|
|
|
def test_dump_traceback_later(self):
|
|
|
|
self.check_dump_traceback_later()
|
2011-03-31 07:31:06 +08:00
|
|
|
|
2012-09-22 14:58:55 +08:00
|
|
|
def test_dump_traceback_later_repeat(self):
|
|
|
|
self.check_dump_traceback_later(repeat=True)
|
2011-03-31 07:31:06 +08:00
|
|
|
|
2012-09-22 14:58:55 +08:00
|
|
|
def test_dump_traceback_later_cancel(self):
|
|
|
|
self.check_dump_traceback_later(cancel=True)
|
2011-03-31 07:31:06 +08:00
|
|
|
|
2012-09-22 14:58:55 +08:00
|
|
|
def test_dump_traceback_later_file(self):
|
|
|
|
self.check_dump_traceback_later(file=True)
|
2011-03-31 07:31:06 +08:00
|
|
|
|
2012-09-22 14:58:55 +08:00
|
|
|
def test_dump_traceback_later_twice(self):
|
|
|
|
self.check_dump_traceback_later(twice=True)
|
2011-04-08 18:57:06 +08:00
|
|
|
|
2011-03-31 07:31:06 +08:00
|
|
|
@unittest.skipIf(not hasattr(faulthandler, "register"),
|
|
|
|
"need faulthandler.register")
|
2011-04-01 18:56:17 +08:00
|
|
|
def check_register(self, filename=False, all_threads=False,
|
2011-07-14 05:39:53 +08:00
|
|
|
unregister=False, chain=False):
|
2011-03-31 07:31:06 +08:00
|
|
|
"""
|
|
|
|
Register a handler displaying the traceback on a user signal. Raise the
|
|
|
|
signal and check the written traceback.
|
|
|
|
|
2011-07-14 05:39:53 +08:00
|
|
|
If chain is True, check that the previous signal handler is called.
|
|
|
|
|
2011-03-31 07:31:06 +08:00
|
|
|
Raise an error if the output doesn't match the expected format.
|
|
|
|
"""
|
2011-04-01 18:56:17 +08:00
|
|
|
signum = signal.SIGUSR1
|
2011-03-31 07:31:06 +08:00
|
|
|
code = """
|
|
|
|
import faulthandler
|
|
|
|
import os
|
|
|
|
import signal
|
2011-07-14 05:39:53 +08:00
|
|
|
import sys
|
2011-03-31 07:31:06 +08:00
|
|
|
|
|
|
|
def func(signum):
|
|
|
|
os.kill(os.getpid(), signum)
|
|
|
|
|
2011-07-14 05:39:53 +08:00
|
|
|
def handler(signum, frame):
|
|
|
|
handler.called = True
|
|
|
|
handler.called = False
|
|
|
|
|
|
|
|
exitcode = 0
|
2011-04-01 18:56:17 +08:00
|
|
|
signum = {signum}
|
|
|
|
unregister = {unregister}
|
2011-07-14 05:39:53 +08:00
|
|
|
chain = {chain}
|
|
|
|
|
2011-03-31 07:31:06 +08:00
|
|
|
if {has_filename}:
|
|
|
|
file = open({filename}, "wb")
|
|
|
|
else:
|
|
|
|
file = None
|
2011-07-14 05:39:53 +08:00
|
|
|
if chain:
|
|
|
|
signal.signal(signum, handler)
|
|
|
|
faulthandler.register(signum, file=file,
|
|
|
|
all_threads={all_threads}, chain={chain})
|
2011-04-01 18:56:17 +08:00
|
|
|
if unregister:
|
|
|
|
faulthandler.unregister(signum)
|
2011-03-31 07:31:06 +08:00
|
|
|
func(signum)
|
2011-07-14 05:39:53 +08:00
|
|
|
if chain and not handler.called:
|
|
|
|
if file is not None:
|
|
|
|
output = file
|
|
|
|
else:
|
|
|
|
output = sys.stderr
|
|
|
|
print("Error: signal handler not called!", file=output)
|
|
|
|
exitcode = 1
|
2011-03-31 07:31:06 +08:00
|
|
|
if file is not None:
|
|
|
|
file.close()
|
2011-07-14 05:39:53 +08:00
|
|
|
sys.exit(exitcode)
|
2011-03-31 07:31:06 +08:00
|
|
|
""".strip()
|
|
|
|
code = code.format(
|
|
|
|
filename=repr(filename),
|
|
|
|
has_filename=bool(filename),
|
|
|
|
all_threads=all_threads,
|
2011-04-01 18:56:17 +08:00
|
|
|
signum=signum,
|
|
|
|
unregister=unregister,
|
2011-07-14 05:39:53 +08:00
|
|
|
chain=chain,
|
2011-03-31 07:31:06 +08:00
|
|
|
)
|
2011-03-31 19:29:56 +08:00
|
|
|
trace, exitcode = self.get_output(code, filename)
|
2011-03-31 07:31:06 +08:00
|
|
|
trace = '\n'.join(trace)
|
2011-04-01 18:56:17 +08:00
|
|
|
if not unregister:
|
|
|
|
if all_threads:
|
|
|
|
regex = 'Current thread XXX:\n'
|
|
|
|
else:
|
|
|
|
regex = 'Traceback \(most recent call first\):\n'
|
2011-07-14 05:39:53 +08:00
|
|
|
regex = expected_traceback(7, 28, regex)
|
2011-04-01 18:56:17 +08:00
|
|
|
self.assertRegex(trace, regex)
|
2011-03-31 07:31:06 +08:00
|
|
|
else:
|
2011-04-01 18:56:17 +08:00
|
|
|
self.assertEqual(trace, '')
|
|
|
|
if unregister:
|
|
|
|
self.assertNotEqual(exitcode, 0)
|
|
|
|
else:
|
|
|
|
self.assertEqual(exitcode, 0)
|
2011-03-31 07:31:06 +08:00
|
|
|
|
|
|
|
def test_register(self):
|
|
|
|
self.check_register()
|
|
|
|
|
2011-04-01 18:56:17 +08:00
|
|
|
def test_unregister(self):
|
|
|
|
self.check_register(unregister=True)
|
|
|
|
|
2011-03-31 07:31:06 +08:00
|
|
|
def test_register_file(self):
|
|
|
|
with temporary_filename() as filename:
|
|
|
|
self.check_register(filename=filename)
|
|
|
|
|
|
|
|
def test_register_threads(self):
|
|
|
|
self.check_register(all_threads=True)
|
|
|
|
|
2011-07-14 05:39:53 +08:00
|
|
|
def test_register_chain(self):
|
|
|
|
self.check_register(chain=True)
|
|
|
|
|
2011-03-31 07:31:06 +08:00
|
|
|
|
|
|
|
def test_main():
|
|
|
|
support.run_unittest(FaultHandlerTests)
|
|
|
|
|
|
|
|
if __name__ == "__main__":
|
|
|
|
test_main()
|