Merge branch 'ganwell-issue_1670_tests_fail_due_to_SSL_error'

README.asciidoc

@@ -210,6 +210,7 @@ Contributors, sorted by the number of commits in descending order:
 * Regina Hug
 * Mathias Fussenegger
 * Marcelo Santos
+* Jean-Louis Fuchs
 * Fritz V155 Reichwald
 * Franz Fellner
 * zwarag

qutebrowser/misc/earlyinit.py

@@ -309,13 +309,14 @@ def earlyinit(args):
     # Here we check if QtCore is available, and if not, print a message to the
     # console or via Tk.
     check_pyqt_core()
+    # Init logging as early as possible
+    init_log(args)
     # Now the faulthandler is enabled we fix the Qt harfbuzzing library, before
     # importing QtWidgets.
     fix_harfbuzz(args)
     # Now we can be sure QtCore is available, so we can print dialogs on
     # errors, so people only using the GUI notice them as well.
     check_qt_version()
-    check_ssl_support()
     remove_inputhook()
     check_libraries(args)
-    init_log(args)
+    check_ssl_support()

qutebrowser/utils/log.py

@@ -167,9 +167,14 @@ def init_log(args):
         root.addHandler(ram)
     root.setLevel(logging.NOTSET)
     logging.captureWarnings(True)
+    _init_py_warnings()
+    QtCore.qInstallMessageHandler(qt_message_handler)
+
+
+def _init_py_warnings():
+    """Initialize Python warning handling."""
     warnings.simplefilter('default')
     warnings.filterwarnings('ignore', module='pdb', category=ResourceWarning)
-    QtCore.qInstallMessageHandler(qt_message_handler)
 
 
 @contextlib.contextmanager
@@ -182,6 +187,14 @@ def disable_qt_msghandler():
         QtCore.qInstallMessageHandler(old_handler)
 
 
+@contextlib.contextmanager
+def ignore_py_warnings(**kwargs):
+    """Contextmanager to temporarily hke certain Python warnings."""
+    warnings.filterwarnings('ignore', **kwargs)
+    yield
+    _init_py_warnings()
+
+
 def _init_handlers(level, color, force_color, json_logging, ram_capacity):
     """Init log handlers.
 
@@ -330,6 +343,10 @@ def qt_message_handler(msg_type, context, msg):
         "Image of format '' blocked because it is not considered safe. If you "
             "are sure it is safe to do so, you can white-list the format by "
             "setting the environment variable QTWEBKIT_IMAGEFORMAT_WHITELIST=",
+        # Installing Qt from the installer may cause it looking for SSL3 which
+        # may not be available on the system
+        "QSslSocket: cannot resolve SSLv3_client_method",
+        "QSslSocket: cannot resolve SSLv3_server_method",
     ]
     if sys.platform == 'darwin':
         suppressed_msgs += [

qutebrowser/utils/qtutils.py

@@ -33,11 +33,17 @@ import sys
 import operator
 import contextlib
 
-import pkg_resources
 from PyQt5.QtCore import (qVersion, QEventLoop, QDataStream, QByteArray,
                           QIODevice, QSaveFile)
 from PyQt5.QtWidgets import QApplication
 
+from qutebrowser.utils import log
+
+with log.ignore_py_warnings(category=PendingDeprecationWarning, module='imp'):
+    # This imports 'imp' and gives us a PendingDeprecationWarning on
+    # Debian Jessie.
+    import pkg_resources
+
 
 MAXVALS = {
     'int': 2 ** 31 - 1,

tests/unit/utils/test_log.py

@@ -23,6 +23,7 @@ import logging
 import argparse
 import itertools
 import sys
+import warnings
 
 import pytest
 import pytest_catchlog
@@ -36,6 +37,7 @@ def restore_loggers():
 
     Based on CPython's Lib/test/test_logging.py.
     """
+    logging.captureWarnings(False)
     logger_dict = logging.getLogger().manager.loggerDict
     logging._acquireLock()
     try:
@@ -278,3 +280,14 @@ def test_stub(caplog, suffix, expected):
         log.stub(suffix)
     assert len(caplog.records) == 1
     assert caplog.records[0].message == expected
+
+
+def test_ignore_py_warnings(caplog):
+    logging.captureWarnings(True)
+    with log.ignore_py_warnings(category=UserWarning):
+        warnings.warn("hidden", UserWarning)
+    with caplog.at_level(logging.WARNING):
+        warnings.warn("not hidden", UserWarning)
+    assert len(caplog.records) == 1
+    msg = caplog.records[0].message.splitlines()[0]
+    assert msg.endswith("UserWarning: not hidden")