зеркало из https://github.com/mozilla/gecko-dev.git
245 строки
10 KiB
Python
245 строки
10 KiB
Python
#!/usr/bin/env python
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#
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this file,
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# You can obtain one at http://mozilla.org/MPL/2.0/.
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import os
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import unittest
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import subprocess
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import tempfile
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import shutil
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import urlparse
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import zipfile
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import StringIO
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import mozunit
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import mozcrash
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import mozhttpd
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import mozlog.unstructured as mozlog
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# Make logs go away
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log = mozlog.getLogger("mozcrash", handler=mozlog.FileHandler(os.devnull))
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def popen_factory(stdouts):
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"""
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Generate a class that can mock subprocess.Popen. |stdouts| is an iterable that
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should return an iterable for the stdout of each process in turn.
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"""
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class mock_popen(object):
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def __init__(self, args, *args_rest, **kwargs):
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self.stdout = stdouts.next()
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self.returncode = 0
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def wait(self):
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return 0
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def communicate(self):
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return (self.stdout.next(), "")
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return mock_popen
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class TestCrash(unittest.TestCase):
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def setUp(self):
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self.tempdir = tempfile.mkdtemp()
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# a fake file to use as a stackwalk binary
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self.stackwalk = os.path.join(self.tempdir, "stackwalk")
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open(self.stackwalk, "w").write("fake binary")
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self._subprocess_popen = subprocess.Popen
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subprocess.Popen = popen_factory(self.next_mock_stdout())
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self.stdouts = []
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def tearDown(self):
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subprocess.Popen = self._subprocess_popen
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shutil.rmtree(self.tempdir)
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def next_mock_stdout(self):
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if not self.stdouts:
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yield iter([])
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for s in self.stdouts:
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yield iter(s)
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def test_nodumps(self):
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"""
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Test that check_for_crashes returns False if no dumps are present.
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"""
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self.stdouts.append(["this is some output"])
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self.assertFalse(mozcrash.check_for_crashes(self.tempdir,
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symbols_path='symbols_path',
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stackwalk_binary=self.stackwalk,
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quiet=True))
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def test_simple(self):
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"""
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Test that check_for_crashes returns True if a dump is present.
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"""
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open(os.path.join(self.tempdir, "test.dmp"), "w").write("foo")
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self.stdouts.append(["this is some output"])
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self.assert_(mozcrash.check_for_crashes(self.tempdir,
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symbols_path='symbols_path',
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stackwalk_binary=self.stackwalk,
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quiet=True))
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def test_stackwalk_envvar(self):
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"""
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Test that check_for_crashes uses the MINIDUMP_STACKWALK environment var.
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"""
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open(os.path.join(self.tempdir, "test.dmp"), "w").write("foo")
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self.stdouts.append(["this is some output"])
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os.environ['MINIDUMP_STACKWALK'] = self.stackwalk
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self.assert_(mozcrash.check_for_crashes(self.tempdir,
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symbols_path='symbols_path',
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quiet=True))
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del os.environ['MINIDUMP_STACKWALK']
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def test_save_path(self):
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"""
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Test that dump_save_path works.
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"""
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open(os.path.join(self.tempdir, "test.dmp"), "w").write("foo")
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open(os.path.join(self.tempdir, "test.extra"), "w").write("bar")
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save_path = os.path.join(self.tempdir, "saved")
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os.mkdir(save_path)
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self.stdouts.append(["this is some output"])
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self.assert_(mozcrash.check_for_crashes(self.tempdir,
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symbols_path='symbols_path',
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stackwalk_binary=self.stackwalk,
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dump_save_path=save_path,
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quiet=True))
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self.assert_(os.path.isfile(os.path.join(save_path, "test.dmp")))
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self.assert_(os.path.isfile(os.path.join(save_path, "test.extra")))
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def test_save_path_not_present(self):
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"""
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Test that dump_save_path works when the directory doesn't exist.
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"""
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open(os.path.join(self.tempdir, "test.dmp"), "w").write("foo")
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open(os.path.join(self.tempdir, "test.extra"), "w").write("bar")
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save_path = os.path.join(self.tempdir, "saved")
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self.stdouts.append(["this is some output"])
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self.assert_(mozcrash.check_for_crashes(self.tempdir,
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symbols_path='symbols_path',
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stackwalk_binary=self.stackwalk,
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dump_save_path=save_path,
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quiet=True))
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self.assert_(os.path.isfile(os.path.join(save_path, "test.dmp")))
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self.assert_(os.path.isfile(os.path.join(save_path, "test.extra")))
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def test_save_path_isfile(self):
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"""
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Test that dump_save_path works when the directory doesn't exist,
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but a file with the same name exists.
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"""
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open(os.path.join(self.tempdir, "test.dmp"), "w").write("foo")
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open(os.path.join(self.tempdir, "test.extra"), "w").write("bar")
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save_path = os.path.join(self.tempdir, "saved")
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open(save_path, "w").write("junk")
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self.stdouts.append(["this is some output"])
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self.assert_(mozcrash.check_for_crashes(self.tempdir,
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symbols_path='symbols_path',
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stackwalk_binary=self.stackwalk,
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dump_save_path=save_path,
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quiet=True))
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self.assert_(os.path.isfile(os.path.join(save_path, "test.dmp")))
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self.assert_(os.path.isfile(os.path.join(save_path, "test.extra")))
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def test_save_path_envvar(self):
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"""
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Test that the MINDUMP_SAVE_PATH environment variable works.
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"""
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open(os.path.join(self.tempdir, "test.dmp"), "w").write("foo")
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open(os.path.join(self.tempdir, "test.extra"), "w").write("bar")
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save_path = os.path.join(self.tempdir, "saved")
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os.mkdir(save_path)
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self.stdouts.append(["this is some output"])
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os.environ['MINIDUMP_SAVE_PATH'] = save_path
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self.assert_(mozcrash.check_for_crashes(self.tempdir,
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symbols_path='symbols_path',
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stackwalk_binary=self.stackwalk,
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quiet=True))
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del os.environ['MINIDUMP_SAVE_PATH']
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self.assert_(os.path.isfile(os.path.join(save_path, "test.dmp")))
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self.assert_(os.path.isfile(os.path.join(save_path, "test.extra")))
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def test_symbol_path_not_present(self):
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open(os.path.join(self.tempdir, "test.dmp"), "w").write("foo")
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self.stdouts.append(["this is some output"])
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self.assert_(mozcrash.check_for_crashes(self.tempdir,
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symbols_path=None,
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stackwalk_binary=self.stackwalk,
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quiet=True))
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def test_symbol_path_url(self):
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"""
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Test that passing a URL as symbols_path correctly fetches the URL.
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"""
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open(os.path.join(self.tempdir, "test.dmp"), "w").write("foo")
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self.stdouts.append(["this is some output"])
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def make_zipfile():
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data = StringIO.StringIO()
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z = zipfile.ZipFile(data, 'w')
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z.writestr("symbols.txt", "abc/xyz")
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z.close()
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return data.getvalue()
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def get_symbols(req):
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headers = {}
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return (200, headers, make_zipfile())
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httpd = mozhttpd.MozHttpd(port=0,
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urlhandlers=[{'method': 'GET',
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'path': '/symbols',
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'function': get_symbols}])
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httpd.start()
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symbol_url = urlparse.urlunsplit(('http', '%s:%d' % httpd.httpd.server_address,
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'/symbols', '', ''))
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self.assert_(mozcrash.check_for_crashes(self.tempdir,
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symbol_url,
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stackwalk_binary=self.stackwalk,
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quiet=True))
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class TestJavaException(unittest.TestCase):
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def setUp(self):
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self.test_log = [
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"01-30 20:15:41.937 E/GeckoAppShell( 1703): >>> "
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"REPORTING UNCAUGHT EXCEPTION FROM THREAD 9 (\"GeckoBackgroundThread\")",
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"01-30 20:15:41.937 E/GeckoAppShell( 1703): java.lang.NullPointerException",
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"01-30 20:15:41.937 E/GeckoAppShell( 1703):"
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" at org.mozilla.gecko.GeckoApp$21.run(GeckoApp.java:1833)",
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"01-30 20:15:41.937 E/GeckoAppShell( 1703):"
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" at android.os.Handler.handleCallback(Handler.java:587)"]
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def test_uncaught_exception(self):
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"""
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Test for an exception which should be caught
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"""
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self.assert_(mozcrash.check_for_java_exception(self.test_log, quiet=True))
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def test_truncated_exception(self):
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"""
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Test for an exception which should be caught which
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was truncated
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"""
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truncated_log = list(self.test_log)
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truncated_log[0], truncated_log[1] = truncated_log[1], truncated_log[0]
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self.assert_(mozcrash.check_for_java_exception(truncated_log, quiet=True))
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def test_unchecked_exception(self):
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"""
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Test for an exception which should not be caught
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"""
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passable_log = list(self.test_log)
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passable_log[0] = "01-30 20:15:41.937 E/GeckoAppShell( 1703):" \
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" >>> NOT-SO-BAD EXCEPTION FROM THREAD 9 (\"GeckoBackgroundThread\")"
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self.assert_(not mozcrash.check_for_java_exception(passable_log, quiet=True))
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if __name__ == '__main__':
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mozunit.main()
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