diff --git a/.pylintrc b/.pylintrc
index 58a3b9ec9..d0d2918cc 100644
--- a/.pylintrc
+++ b/.pylintrc
@@ -21,7 +21,8 @@ disable=no-self-use,
         bad-option-value,
         bad-continuation,
         too-many-instance-attributes,
-        unnecessary-lambda
+        unnecessary-lambda,
+        blacklisted-name
 
 [BASIC]
 module-rgx=(__)?[a-z][a-z0-9_]*(__)?$
@@ -33,7 +34,6 @@ argument-rgx=[a-z_][a-z0-9_]{0,30}$
 variable-rgx=[a-z_][a-z0-9_]{0,30}$
 class-attribute-rgx=[A-Za-z_][A-Za-z0-9_]{1,30}$
 inlinevar-rgx=[a-z_][a-z0-9_]*$
-bad-names=foo,tmp
 
 [FORMAT]
 max-line-length=79
diff --git a/qutebrowser/test/keyinput/test_basekeyparser.py b/qutebrowser/test/keyinput/test_basekeyparser.py
index f01e2555b..2500c447b 100644
--- a/qutebrowser/test/keyinput/test_basekeyparser.py
+++ b/qutebrowser/test/keyinput/test_basekeyparser.py
@@ -17,19 +17,25 @@
 # You should have received a copy of the GNU General Public License
 # along with qutebrowser.  If not, see <http://www.gnu.org/licenses/>.
 
-# pylint: disable=missing-docstring
-
 """Tests for BaseKeyParser."""
 
 import unittest
 import logging
-from unittest import TestCase
 from unittest.mock import Mock
 
 import qutebrowser.keyinput.basekeyparser as basekeyparser
+from qutebrowser.test.stubs import ConfigStub, FakeKeyEvent
 
 from PyQt5.QtCore import Qt
 
+CONFIG = {'test': {'<Ctrl-a>': 'ctrla',
+                   'a': 'a',
+                   'ba': 'ba',
+                   'ax': 'ax',
+                   'ccc': 'ccc'},
+          'input': {'timeout': 100},
+          'test2': {'foo': 'bar', '<Ctrl+X>': 'ctrlx'}}
+
 
 def setUpModule():
     """Mock out some imports in basekeyparser."""
@@ -37,54 +43,7 @@ def setUpModule():
     logging.disable(logging.ERROR)
 
 
-class ConfigStub:
-
-    """Stub for basekeyparser.config.
-
-    Class attributes:
-        DATA: The config data to return.
-    """
-
-    DATA = {'test': {'<Ctrl-a>': 'ctrla',
-                     'a': 'a',
-                     'ba': 'ba',
-                     'ax': 'ax',
-                     'ccc': 'ccc'},
-            'input': {'timeout': 100},
-            'test2': {'foo': 'bar', '<Ctrl+X>': 'ctrlx'}}
-
-    def section(self, name):
-        """Get a section from the config.
-
-        Args:
-            name: The section name to get.
-
-        Raise:
-            ValueError if section isn't test1/test2.
-
-        Return:
-            The section as dict.
-        """
-        if name not in ('test', 'test2'):
-            raise ValueError("section called with section '{}'!".format(name))
-        return self.DATA[name]
-
-    def get(self, sect, opt):
-        """Get a value from the config."""
-        return self.DATA[sect][opt]
-
-
-class FakeKeyEvent:
-
-    """Fake QKeyPressEvent stub."""
-
-    def __init__(self, key, modifiers=0, text=''):
-        self.key = Mock(return_value=key)
-        self.text = Mock(return_value=text)
-        self.modifiers = Mock(return_value=modifiers)
-
-
-class NormalizeTests(TestCase):
+class NormalizeTests(unittest.TestCase):
 
     """Test _normalize_keystr method."""
 
@@ -105,7 +64,7 @@ class NormalizeTests(TestCase):
             self.assertEqual(self.kp._normalize_keystr(orig), repl, orig)
 
 
-class SplitCountTests(TestCase):
+class SplitCountTests(unittest.TestCase):
 
     """Test the _split_count method.
 
@@ -148,12 +107,12 @@ class SplitCountTests(TestCase):
         self.assertEqual(self.kp._split_count(), (None, '10foo'))
 
 
-class ReadConfigTests(TestCase):
+class ReadConfigTests(unittest.TestCase):
 
     """Test reading the config."""
 
     def setUp(self):
-        basekeyparser.config = ConfigStub()
+        basekeyparser.config = ConfigStub(CONFIG)
         basekeyparser.QTimer = Mock()
 
     def test_read_config_invalid(self):
@@ -176,7 +135,7 @@ class ReadConfigTests(TestCase):
         self.assertIn('Ctrl+X', kp.special_bindings)
 
 
-class SpecialKeysTests(TestCase):
+class SpecialKeysTests(unittest.TestCase):
 
     """Check execute() with special keys.
 
@@ -185,7 +144,7 @@ class SpecialKeysTests(TestCase):
     """
 
     def setUp(self):
-        basekeyparser.config = ConfigStub()
+        basekeyparser.config = ConfigStub(CONFIG)
         basekeyparser.QTimer = Mock()
         self.kp = basekeyparser.BaseKeyParser()
         self.kp.execute = Mock()
@@ -210,7 +169,7 @@ class SpecialKeysTests(TestCase):
         self.assertFalse(self.kp.execute.called)
 
 
-class KeyChainTests(TestCase):
+class KeyChainTests(unittest.TestCase):
 
     """Test execute() with keychain support.
 
@@ -221,7 +180,7 @@ class KeyChainTests(TestCase):
 
     def setUp(self):
         """Set up mocks and read the test config."""
-        basekeyparser.config = ConfigStub()
+        basekeyparser.config = ConfigStub(CONFIG)
         self.timermock = Mock()
         basekeyparser.QTimer = Mock(return_value=self.timermock)
         self.kp = basekeyparser.BaseKeyParser(supports_chains=True,
@@ -279,12 +238,12 @@ class KeyChainTests(TestCase):
         self.assertEqual(self.kp._keystring, '')
 
 
-class CountTests(TestCase):
+class CountTests(unittest.TestCase):
 
     """Test execute() with counts."""
 
     def setUp(self):
-        basekeyparser.config = ConfigStub()
+        basekeyparser.config = ConfigStub(CONFIG)
         basekeyparser.QTimer = Mock()
         self.kp = basekeyparser.BaseKeyParser(supports_chains=True,
                                               supports_count=True)
diff --git a/qutebrowser/test/stubs.py b/qutebrowser/test/stubs.py
new file mode 100644
index 000000000..e5055e587
--- /dev/null
+++ b/qutebrowser/test/stubs.py
@@ -0,0 +1,258 @@
+# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
+
+# Copyright 2014 Florian Bruhin (The Compiler) <mail@qutebrowser.org>
+#
+# This file is part of qutebrowser.
+#
+# qutebrowser is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# qutebrowser is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with qutebrowser.  If not, see <http://www.gnu.org/licenses/>.
+
+# pylint: disable=invalid-name
+
+"""Fake objects/stubs."""
+
+from unittest.mock import Mock
+
+from PyQt5.QtCore import QPoint, QProcess
+from PyQt5.QtWebKit import QWebElement
+
+
+class ConfigStub:
+
+    """Stub for basekeyparser.config.
+
+    Attributes:
+        data: The config data to return.
+    """
+
+    class NoOptionError(Exception):
+
+        """NoOptionError exception."""
+
+        pass
+
+    def __init__(self, data):
+        self.data = data
+
+    def section(self, name):
+        """Get a section from the config.
+
+        Args:
+            name: The section name to get.
+
+        Raise:
+            ValueError if section isn't test1/test2.
+
+        Return:
+            The section as dict.
+        """
+        return self.data[name]
+
+    def get(self, sect, opt):
+        """Get a value from the config."""
+        sect = self.data[sect]
+        try:
+            return sect[opt]
+        except KeyError:
+            raise self.NoOptionError
+
+
+class FakeKeyEvent:
+
+    """Fake QKeyPressEvent stub."""
+
+    def __init__(self, key, modifiers=0, text=''):
+        self.key = Mock(return_value=key)
+        self.text = Mock(return_value=text)
+        self.modifiers = Mock(return_value=modifiers)
+
+
+class FakeWebElement:
+
+    """A stub for QWebElement."""
+
+    def __init__(self, geometry=None, frame=None, null=False, visibility='',
+                 display='', attributes=None):
+        """Constructor.
+
+        Args:
+            geometry: The geometry of the QWebElement as QRect.
+            frame: The QWebFrame the element is in.
+            null: Whether the element is null or not.
+            visibility: The CSS visibility style property calue.
+            display: The CSS display style property calue.
+            attributes: Boolean HTML attributes to be added.
+
+        Raise:
+            ValueError if element is not null and geometry/frame are not given.
+        """
+        self.geometry = Mock(return_value=geometry)
+        self.webFrame = Mock(return_value=frame)
+        self.isNull = Mock(return_value=null)
+        self._visibility = visibility
+        self._display = display
+        self._attributes = attributes
+
+    def styleProperty(self, name, strategy):
+        """Return the CSS style property named name.
+
+        Only display/visibility and ComputedStyle are simulated.
+
+        Raise:
+            ValueError if strategy is not ComputedStyle or name is not
+                       visibility/display.
+        """
+        if strategy != QWebElement.ComputedStyle:
+            raise ValueError("styleProperty called with strategy != "
+                             "ComputedStyle ({})!".format(strategy))
+        if name == 'visibility':
+            return self._visibility
+        elif name == 'display':
+            return self._display
+        else:
+            raise ValueError("styleProperty called with unknown name "
+                             "'{}'".format(name))
+
+    def hasAttribute(self, name):
+        """Check if the element has an attribute named name."""
+        if self._attributes is None:
+            return False
+        else:
+            return name in self._attributes
+
+
+class FakeWebFrame:
+
+    """A stub for QWebFrame."""
+
+    def __init__(self, geometry, scroll=None, parent=None):
+        """Constructor.
+
+        Args:
+            geometry: The geometry of the frame as QRect.
+            scroll: The scroll position as QPoint.
+            parent: The parent frame.
+        """
+        if scroll is None:
+            scroll = QPoint(0, 0)
+        self.geometry = Mock(return_value=geometry)
+        self.scrollPosition = Mock(return_value=scroll)
+        self.parentFrame = Mock(return_value=parent)
+
+
+class FakeChildrenFrame:
+
+    """A stub for QWebFrame to test get_child_frames."""
+
+    def __init__(self, children=None):
+        if children is None:
+            children = []
+        self.childFrames = Mock(return_value=children)
+
+
+class FakeQApplication:
+
+    """Stub to insert as QApplication module."""
+
+    def __init__(self, focus):
+        # pylint: disable=invalid-name
+        self.focusWidget = Mock(return_value=focus)
+        self.instance = Mock(return_value=self)
+
+
+class FakeUrl:
+
+    """QUrl stub which provides .path()."""
+
+    def __init__(self, path=None):
+        self.path = Mock(return_value=path)
+
+
+class FakeNetworkReply:
+
+    """QNetworkReply stub which provides a Content-Disposition header."""
+
+    def __init__(self, content_disposition=None, url=None):
+        if url is None:
+            url = FakeUrl()
+        self._content_disposition = content_disposition
+        self.url = Mock(return_value=url)
+
+    def hasRawHeader(self, name):
+        """Check if the reply has a certain header.
+
+        Args:
+            name: The name of the header.
+
+        Return:
+            True if the header is present, False if not.
+
+        Raise:
+            ValueError: If a header other than Content-Disposition is
+                        requested.
+        """
+        if name == 'Content-Disposition':
+            return self._content_disposition is not None
+        else:
+            raise ValueError("Invalid header {}".format(name))
+
+    def rawHeader(self, name):
+        """Get the raw header data of a header.
+
+        Args:
+            name: The name of the header.
+
+        Return:
+            The header data, as ISO-8859-1 encoded bytes() object.
+
+        Raise:
+            ValueError: If a header other than Content-Disposition is
+                        requested.
+        """
+        if name != 'Content-Disposition':
+            raise ValueError("Invalid header {}".format(name))
+        cd = self._content_disposition
+        if cd is None:
+            raise ValueError("Content-Disposition is None!")
+        return cd.encode('iso-8859-1')
+
+
+class FakeQProcess:
+
+    """QProcess stub.
+
+    Gets some enum values from the real QProcess and uses mocks for signals.
+    """
+
+    NormalExit = QProcess.NormalExit
+    CrashExit = QProcess.CrashExit
+
+    FailedToStart = QProcess.FailedToStart
+    Crashed = QProcess.Crashed
+    Timedout = QProcess.Timedout
+    WriteError = QProcess.WriteError
+    ReadError = QProcess.ReadError
+    UnknownError = QProcess.UnknownError
+
+    def __init__(self, parent=None):  # pylint: disable=unused-argument
+        self.finished = Mock()
+        self.error = Mock()
+        self.start = Mock()
+
+
+class FakeSignal:
+
+    """Fake pyqtSignal stub which uses a mock to see if it was called."""
+
+    def __init__(self, name='fake'):
+        self.signal = '2{}(int, int)'.format(name)
diff --git a/qutebrowser/test/test_helpers.py b/qutebrowser/test/test_helpers.py
index d764d0481..250c99fde 100644
--- a/qutebrowser/test/test_helpers.py
+++ b/qutebrowser/test/test_helpers.py
@@ -22,12 +22,12 @@
 """Test test helpers."""
 
 import os
-from unittest import TestCase
+import unittest
 
 from qutebrowser.test.helpers import environ_set_temp
 
 
-class TestEnvironSetTemp(TestCase):
+class TestEnvironSetTemp(unittest.TestCase):
 
     """Test the environ_set_temp helper."""
 
@@ -48,3 +48,6 @@ class TestEnvironSetTemp(TestCase):
         if 'QUTEBROWSER_ENVIRON_TEST' in os.environ:
             # if some test failed
             del os.environ['QUTEBROWSER_ENVIRON_TEST']
+
+if __name__ == '__main__':
+    unittest.main()
diff --git a/qutebrowser/test/utils/test_debug.py b/qutebrowser/test/utils/test_debug.py
index 57115f2fb..c4fb64c9c 100644
--- a/qutebrowser/test/utils/test_debug.py
+++ b/qutebrowser/test/utils/test_debug.py
@@ -15,45 +15,37 @@
 # You should have received a copy of the GNU General Public License
 # along with qutebrowser.  If not, see <http://www.gnu.org/licenses/>.
 
-# pylint: disable=pointless-statement,no-member
-
 """Tests for qutebrowser.utils.debug."""
 
 import unittest
-from unittest import TestCase
 
 from PyQt5.QtWidgets import QStyle, QFrame
 
 import qutebrowser.utils.debug as debug
+from qutebrowser.test.stubs import FakeSignal
 
 
-class FakeSignal:
-
-    """Fake pyqtSignal stub which uses a mock to see if it was called."""
-
-    def __init__(self, name='fake'):
-        self.signal = '2{}(int, int)'.format(name)
-
-
-class QEnumKeyTests(TestCase):
+class QEnumKeyTests(unittest.TestCase):
 
     """Tests for qenum_key."""
 
     def test_no_metaobj(self):
         """Test with an enum with no metaobject."""
         with self.assertRaises(AttributeError):
+            # pylint: disable=pointless-statement,no-member
             QStyle.PrimitiveElement.staticMetaObject
         key = debug.qenum_key(QStyle, QStyle.PE_PanelButtonCommand)
         self.assertEqual(key, 'PE_PanelButtonCommand')
 
     def test_metaobj(self):
         """Test with an enum with metaobject."""
+        # pylint: disable=pointless-statement
         QFrame.staticMetaObject
         key = debug.qenum_key(QFrame, QFrame.Sunken)
         self.assertEqual(key, 'Sunken')
 
 
-class TestDebug(TestCase):
+class TestDebug(unittest.TestCase):
 
     """Test signal debug output functions."""
 
diff --git a/qutebrowser/test/utils/test_editor.py b/qutebrowser/test/utils/test_editor.py
index 70ec02d85..48bb7f970 100644
--- a/qutebrowser/test/utils/test_editor.py
+++ b/qutebrowser/test/utils/test_editor.py
@@ -17,61 +17,17 @@
 # You should have received a copy of the GNU General Public License
 # along with qutebrowser.  If not, see <http://www.gnu.org/licenses/>.
 
-# pylint: disable=maybe-no-member
-
 """Tests for qutebrowser.utils.editor."""
 
 import os
 import os.path
 import unittest
-from unittest import TestCase
 from unittest.mock import Mock
 
 from PyQt5.QtCore import QProcess
 
 import qutebrowser.utils.editor as editorutils
-
-
-class ConfigStub:
-
-    """Stub for editor.config.
-
-    Attributes:
-        editor: The editor to return for general -> editor.
-    """
-
-    def __init__(self, editor):
-        self.editor = editor
-
-    def get(self, sect, opt):
-        """Get the configured value for sect/opt."""
-        if sect == 'general' and opt == 'editor':
-            return self.editor
-        else:
-            raise ValueError("Invalid option {} -> {}".format(sect, opt))
-
-
-class FakeQProcess:
-
-    """QProcess stub.
-
-    Gets some enum values from the real QProcess and uses mocks for signals.
-    """
-
-    NormalExit = QProcess.NormalExit
-    CrashExit = QProcess.CrashExit
-
-    FailedToStart = QProcess.FailedToStart
-    Crashed = QProcess.Crashed
-    Timedout = QProcess.Timedout
-    WriteError = QProcess.WriteError
-    ReadError = QProcess.ReadError
-    UnknownError = QProcess.UnknownError
-
-    def __init__(self, parent=None):  # pylint: disable=unused-argument
-        self.finished = Mock()
-        self.error = Mock()
-        self.start = Mock()
+from qutebrowser.test.stubs import ConfigStub, FakeQProcess
 
 
 def setUpModule():
@@ -81,7 +37,7 @@ def setUpModule():
     editorutils.QProcess = FakeQProcess
 
 
-class ArgTests(TestCase):
+class ArgTests(unittest.TestCase):
 
     """Test argument handling.
 
@@ -94,19 +50,21 @@ class ArgTests(TestCase):
 
     def test_simple_start_args(self):
         """Test starting editor without arguments."""
-        editorutils.config = ConfigStub(editor=["bin"])
+        editorutils.config = ConfigStub({'general': {'editor': ['bin']}})
         self.editor.edit("")
         self.editor.proc.start.assert_called_with("bin", [])
 
     def test_start_args(self):
         """Test starting editor with static arguments."""
-        editorutils.config = ConfigStub(editor=["bin", "foo", "bar"])
+        editorutils.config = ConfigStub(
+            {'general': {'editor': ['bin', 'foo', 'bar']}})
         self.editor.edit("")
         self.editor.proc.start.assert_called_with("bin", ["foo", "bar"])
 
     def test_placeholder(self):
         """Test starting editor with placeholder argument."""
-        editorutils.config = ConfigStub(editor=["bin", "foo", "{}", "bar"])
+        editorutils.config = ConfigStub(
+            {'general': {'editor': ['bin', 'foo', '{}', 'bar']}})
         self.editor.edit("")
         filename = self.editor.filename
         self.editor.proc.start.assert_called_with("bin",
@@ -114,7 +72,8 @@ class ArgTests(TestCase):
 
     def test_in_arg_placeholder(self):
         """Test starting editor with placeholder argument inside argument."""
-        editorutils.config = ConfigStub(editor=["bin", "foo{}bar"])
+        editorutils.config = ConfigStub(
+            {'general': {'editor': ['bin', 'foo{}bar']}})
         self.editor.edit("")
         self.editor.proc.start.assert_called_with("bin", ["foo{}bar"])
 
@@ -122,7 +81,7 @@ class ArgTests(TestCase):
         self.editor._cleanup()  # pylint: disable=protected-access
 
 
-class FileHandlingTests(TestCase):
+class FileHandlingTests(unittest.TestCase):
 
     """Test creation/deletion of tempfile.
 
@@ -132,7 +91,7 @@ class FileHandlingTests(TestCase):
 
     def setUp(self):
         self.editor = editorutils.ExternalEditor()
-        editorutils.config = ConfigStub(editor=[""])
+        editorutils.config = ConfigStub({'general': {'editor': ['']}})
 
     def test_file_handling_closed_ok(self):
         """Test file handling when closing with an exitstatus == 0."""
@@ -160,7 +119,7 @@ class FileHandlingTests(TestCase):
         self.assertFalse(os.path.exists(filename))
 
 
-class TextModifyTests(TestCase):
+class TextModifyTests(unittest.TestCase):
 
     """Tests to test if the text gets saved/loaded correctly.
 
@@ -171,7 +130,7 @@ class TextModifyTests(TestCase):
     def setUp(self):
         self.editor = editorutils.ExternalEditor()
         self.editor.editing_finished = Mock()
-        editorutils.config = ConfigStub(editor=[""])
+        editorutils.config = ConfigStub({'general': {'editor': ['']}})
 
     def _write(self, text):
         """Write a text to the file opened in the fake editor.
@@ -227,7 +186,7 @@ class TextModifyTests(TestCase):
         self.editor.editing_finished.emit.assert_called_with("\u2601")
 
 
-class ErrorMessageTests(TestCase):
+class ErrorMessageTests(unittest.TestCase):
 
     """Test if statusbar error messages get emitted correctly.
 
@@ -235,9 +194,11 @@ class ErrorMessageTests(TestCase):
         editor: The ExternalEditor instance to test.
     """
 
+    # pylint: disable=maybe-no-member
+
     def setUp(self):
         self.editor = editorutils.ExternalEditor()
-        editorutils.config = ConfigStub(editor=[""])
+        editorutils.config = ConfigStub({'general': {'editor': ['']}})
 
     def test_proc_error(self):
         """Test on_proc_error."""
diff --git a/qutebrowser/test/utils/test_log.py b/qutebrowser/test/utils/test_log.py
index c6130d56f..da8a3b887 100644
--- a/qutebrowser/test/utils/test_log.py
+++ b/qutebrowser/test/utils/test_log.py
@@ -17,20 +17,17 @@
 # You should have received a copy of the GNU General Public License
 # along with qutebrowser.  If not, see <http://www.gnu.org/licenses/>.
 
-# pylint: disable=protected-access,invalid-name
-
 """Tests for qutebrowser.utils.log."""
 
 import logging
 import unittest
 import argparse
 import sys
-from unittest import TestCase
 
 import qutebrowser.utils.log as log
 
 
-class BaseTest(TestCase):
+class BaseTest(unittest.TestCase):
 
     """Base class for logging tests.
 
@@ -39,6 +36,7 @@ class BaseTest(TestCase):
 
     def setUp(self):
         """Save the old logging configuration."""
+        # pylint: disable=protected-access
         logger_dict = logging.getLogger().manager.loggerDict
         logging._acquireLock()
         try:
@@ -57,6 +55,7 @@ class BaseTest(TestCase):
 
     def tearDown(self):
         """Restore the original logging configuration."""
+        # pylint: disable=protected-access
         while self.root_logger.handlers:
             h = self.root_logger.handlers[0]
             self.root_logger.removeHandler(h)
@@ -67,9 +66,9 @@ class BaseTest(TestCase):
             logging._handlers.clear()
             logging._handlers.update(self.saved_handlers)
             logging._handlerList[:] = self.saved_handler_list
-            loggerDict = logging.getLogger().manager.loggerDict
-            loggerDict.clear()
-            loggerDict.update(self.saved_loggers)
+            logger_dict = logging.getLogger().manager.loggerDict
+            logger_dict.clear()
+            logger_dict.update(self.saved_loggers)
             logger_states = self.logger_states
             for name in self.logger_states:
                 if logger_states[name] is not None:
@@ -78,7 +77,7 @@ class BaseTest(TestCase):
             logging._releaseLock()
 
 
-class LogFilterTests(TestCase):
+class LogFilterTests(unittest.TestCase):
 
     """Tests for LogFilter.
 
diff --git a/qutebrowser/test/utils/test_misc.py b/qutebrowser/test/utils/test_misc.py
index f79bc63d0..a7ee3b91b 100644
--- a/qutebrowser/test/utils/test_misc.py
+++ b/qutebrowser/test/utils/test_misc.py
@@ -17,8 +17,6 @@
 # You should have received a copy of the GNU General Public License
 # along with qutebrowser.  If not, see <http://www.gnu.org/licenses/>.
 
-# pylint: disable=missing-docstring,blacklisted-name,protected-access
-
 """Tests for qutebrowser.utils.misc."""
 
 import os
@@ -28,7 +26,6 @@ import unittest
 import os.path
 import subprocess
 from tempfile import mkdtemp
-from unittest import TestCase
 
 from PyQt5.QtCore import QStandardPaths, QCoreApplication
 from PyQt5.QtGui import QColor
@@ -37,7 +34,7 @@ import qutebrowser.utils.misc as utils
 from qutebrowser.test.helpers import environ_set_temp
 
 
-class ElidingTests(TestCase):
+class ElidingTests(unittest.TestCase):
 
     """Test elide."""
 
@@ -61,7 +58,7 @@ class ElidingTests(TestCase):
         self.assertEqual(utils.elide('foobar', 3), 'fo' + self.ELLIPSIS)
 
 
-class ReadFileTests(TestCase):
+class ReadFileTests(unittest.TestCase):
 
     """Test read_file."""
 
@@ -71,7 +68,7 @@ class ReadFileTests(TestCase):
         self.assertEqual(content.splitlines()[0], "Hello World!")
 
 
-class DottedGetattrTests(TestCase):
+class DottedGetattrTests(unittest.TestCase):
 
     """Test dotted_getattr.
 
@@ -106,7 +103,7 @@ class DottedGetattrTests(TestCase):
             _ = utils.dotted_getattr(self, 'test.foo.baz')
 
 
-class SafeShlexSplitTests(TestCase):
+class SafeShlexSplitTests(unittest.TestCase):
 
     """Test safe_shlex_split."""
 
@@ -141,7 +138,7 @@ class SafeShlexSplitTests(TestCase):
         self.assertEqual(items, ['one', 'two\\'])
 
 
-class ShellEscapeTests(TestCase):
+class ShellEscapeTests(unittest.TestCase):
 
     """Tests for shell_escape.
 
@@ -204,7 +201,7 @@ class ShellEscapeTests(TestCase):
         sys.platform = self.platform
 
 
-class GetStandardDirLinuxTests(TestCase):
+class GetStandardDirLinuxTests(unittest.TestCase):
 
     """Tests for get_standard_dir under Linux.
 
@@ -278,7 +275,7 @@ class GetStandardDirLinuxTests(TestCase):
         shutil.rmtree(self.temp_dir)
 
 
-class GetStandardDirWindowsTests(TestCase):
+class GetStandardDirWindowsTests(unittest.TestCase):
 
     """Tests for get_standard_dir under Windows.
 
@@ -328,7 +325,7 @@ class GetStandardDirWindowsTests(TestCase):
         self.app.quit()
 
 
-class InterpolateColorTests(TestCase):
+class InterpolateColorTests(unittest.TestCase):
 
     """Tests for interpolate_color.
 
@@ -416,7 +413,7 @@ class InterpolateColorTests(TestCase):
         self.assertEqual(color, expected)
 
 
-class FormatSecondsTests(TestCase):
+class FormatSecondsTests(unittest.TestCase):
 
     """Tests for format_seconds.
 
@@ -444,7 +441,7 @@ class FormatSecondsTests(TestCase):
             self.assertEqual(utils.format_seconds(seconds), out, seconds)
 
 
-class FormatSizeTests(TestCase):
+class FormatSizeTests(unittest.TestCase):
 
     """Tests for format_size.
 
diff --git a/qutebrowser/test/utils/test_misc_content_disposition.py b/qutebrowser/test/utils/test_misc_content_disposition.py
index 7d77bf4c4..20e3b9e37 100644
--- a/qutebrowser/test/utils/test_misc_content_disposition.py
+++ b/qutebrowser/test/utils/test_misc_content_disposition.py
@@ -21,76 +21,19 @@
 
 import os
 import unittest
-from unittest import TestCase
 from unittest.mock import Mock
 
 import qutebrowser.utils.misc as utils
+from qutebrowser.test.stubs import FakeNetworkReply
 
 
 DEFAULT_NAME = 'qutebrowser-download'
 
 
-class FakeUrl:
-
-    """QUrl stub which provides .path()."""
-
-    def __init__(self, path=None):
-        self.path = Mock(return_value=path)
-
-
-class FakeNetworkReply:
-
-    """QNetworkReply stub which provides a Content-Disposition header."""
-
-    def __init__(self, content_disposition=None, url=None):
-        if url is None:
-            url = FakeUrl()
-        self._content_disposition = content_disposition
-        self.url = Mock(return_value=url)
-
-    def hasRawHeader(self, name):
-        """Check if the reply has a certain header.
-
-        Args:
-            name: The name of the header.
-
-        Return:
-            True if the header is present, False if not.
-
-        Raise:
-            ValueError: If a header other than Content-Disposition is
-                        requested.
-        """
-        if name == 'Content-Disposition':
-            return self._content_disposition is not None
-        else:
-            raise ValueError("Invalid header {}".format(name))
-
-    def rawHeader(self, name):
-        """Get the raw header data of a header.
-
-        Args:
-            name: The name of the header.
-
-        Return:
-            The header data, as ISO-8859-1 encoded bytes() object.
-
-        Raise:
-            ValueError: If a header other than Content-Disposition is
-                        requested.
-        """
-        if name != 'Content-Disposition':
-            raise ValueError("Invalid header {}".format(name))
-        cd = self._content_disposition
-        if cd is None:
-            raise ValueError("Content-Disposition is None!")
-        return cd.encode('iso-8859-1')
-
-
 # These test cases are based on http://greenbytes.de/tech/tc2231/
 
 
-class AttachmentTestCase(TestCase):
+class AttachmentTestCase(unittest.TestCase):
 
     """Helper class with some convienence methods to check filenames."""
 
@@ -117,7 +60,7 @@ class AttachmentTestCase(TestCase):
         self.assertFalse(cd_inline)
 
 
-class InlineTests(TestCase):
+class InlineTests(unittest.TestCase):
 
     """Various tests relating to the "inline" disposition type.
 
diff --git a/qutebrowser/test/utils/test_qt.py b/qutebrowser/test/utils/test_qt.py
index 2b5edd833..5ca66615a 100644
--- a/qutebrowser/test/utils/test_qt.py
+++ b/qutebrowser/test/utils/test_qt.py
@@ -17,19 +17,16 @@
 # You should have received a copy of the GNU General Public License
 # along with qutebrowser.  If not, see <http://www.gnu.org/licenses/>.
 
-# pylint: disable=missing-docstring,blacklisted-name,protected-access
-
 """Tests for qutebrowser.utils.qt."""
 
 import sys
 import argparse
 import unittest
-from unittest import TestCase
 
 import qutebrowser.utils.qt as qt
 
 
-class CheckOverflowTests(TestCase):
+class CheckOverflowTests(unittest.TestCase):
 
     """Test check_overflow.
 
@@ -83,7 +80,7 @@ class CheckOverflowTests(TestCase):
                                  "{}: {}".format(ctype, val))
 
 
-class GetQtArgsTests(TestCase):
+class GetQtArgsTests(unittest.TestCase):
 
     """Tests for get_qt_args."""
 
diff --git a/qutebrowser/test/utils/test_readline.py b/qutebrowser/test/utils/test_readline.py
index d13287ab6..2666a29bf 100644
--- a/qutebrowser/test/utils/test_readline.py
+++ b/qutebrowser/test/utils/test_readline.py
@@ -17,31 +17,19 @@
 # You should have received a copy of the GNU General Public License
 # along with qutebrowser.  If not, see <http://www.gnu.org/licenses/>.
 
-# pylint: disable=missing-docstring
-
 """Tests for qutebrowser.utils.readline."""
 
 import inspect
 import unittest
-from unittest import TestCase
 from unittest.mock import Mock
 
 from PyQt5.QtWidgets import QLineEdit
 
 import qutebrowser.utils.readline as readline
+from qutebrowser.test.stubs import FakeQApplication
 
 
-class FakeQApplication:
-
-    """Stub to insert as QApplication module."""
-
-    def __init__(self, focus):
-        # pylint: disable=invalid-name
-        self.focusWidget = Mock(return_value=focus)
-        self.instance = Mock(return_value=self)
-
-
-class NoneWidgetTests(TestCase):
+class NoneWidgetTests(unittest.TestCase):
 
     """Tests when the focused widget is None."""
 
@@ -56,7 +44,7 @@ class NoneWidgetTests(TestCase):
                 method()
 
 
-class ReadlineBridgeTest(TestCase):
+class ReadlineBridgeTest(unittest.TestCase):
 
     """Tests for readline bridge."""
 
@@ -71,34 +59,42 @@ class ReadlineBridgeTest(TestCase):
         self.qle.configure_mock(**{'selectedText.return_value': text})
 
     def test_rl_backward_char(self):
+        """Test rl_backward_char."""
         self.bridge.rl_backward_char()
         self.qle.cursorBackward.assert_called_with(False)
 
     def test_rl_forward_char(self):
+        """Test rl_forward_char."""
         self.bridge.rl_forward_char()
         self.qle.cursorForward.assert_called_with(False)
 
     def test_rl_backward_word(self):
+        """Test rl_backward_word."""
         self.bridge.rl_backward_word()
         self.qle.cursorWordBackward.assert_called_with(False)
 
     def test_rl_forward_word(self):
+        """Test rl_forward_word."""
         self.bridge.rl_forward_word()
         self.qle.cursorWordForward.assert_called_with(False)
 
     def test_rl_beginning_of_line(self):
+        """Test rl_beginning_of_line."""
         self.bridge.rl_beginning_of_line()
         self.qle.home.assert_called_with(False)
 
     def test_rl_end_of_line(self):
+        """Test rl_end_of_line."""
         self.bridge.rl_end_of_line()
         self.qle.end.assert_called_with(False)
 
     def test_rl_delete_char(self):
+        """Test rl_delete_char."""
         self.bridge.rl_delete_char()
         self.qle.del_.assert_called_with()
 
     def test_rl_backward_delete_char(self):
+        """Test rl_backward_delete_char."""
         self.bridge.rl_backward_delete_char()
         self.qle.backspace.assert_called_with()
 
diff --git a/qutebrowser/test/utils/test_url.py b/qutebrowser/test/utils/test_url.py
index 8b036cf4f..73c6371d9 100644
--- a/qutebrowser/test/utils/test_url.py
+++ b/qutebrowser/test/utils/test_url.py
@@ -17,54 +17,26 @@
 # You should have received a copy of the GNU General Public License
 # along with qutebrowser.  If not, see <http://www.gnu.org/licenses/>.
 
-# pylint: disable=missing-docstring,protected-access
-
 """Tests for qutebrowser.utils.url."""
 
 import unittest
-from unittest import TestCase
 
 from PyQt5.QtCore import QUrl
 
 import qutebrowser.utils.url as urlutils
+from qutebrowser.test.stubs import ConfigStub
 
 
-class ConfigStub:
-
-    """Stub which is used to mock out the config.
-
-    Attributes:
-        _DATA: The config data to use
-    """
-
-    _DATA = {
-        'general': {'auto-search': True},
-        'searchengines': {
-            'test': 'http://www.qutebrowser.org/?q={}',
-            'DEFAULT': 'http://www.example.com/?q={}',
-        },
-    }
-
-    class NoOptionError(Exception):
-
-        """NoOptionError exception which does nothing."""
-
-        pass
-
-    def get(self, section, option):
-        """Get a value from section/option.
-
-        Raise:
-            NoOptionError if the option was not found.
-        """
-        sect = self._DATA[section]
-        try:
-            return sect[option]
-        except KeyError:
-            raise self.NoOptionError
+CONFIG = {
+    'general': {'auto-search': True},
+    'searchengines': {
+        'test': 'http://www.qutebrowser.org/?q={}',
+        'DEFAULT': 'http://www.example.com/?q={}',
+    },
+}
 
 
-class SpecialURLTests(TestCase):
+class SpecialURLTests(unittest.TestCase):
 
     """Test is_special_url.
 
@@ -97,7 +69,7 @@ class SpecialURLTests(TestCase):
             self.assertFalse(urlutils.is_special_url(u))
 
 
-class SearchUrlTests(TestCase):
+class SearchUrlTests(unittest.TestCase):
 
     """Test _get_search_url.
 
@@ -105,9 +77,11 @@ class SearchUrlTests(TestCase):
         config: The urlutils.config instance.
     """
 
+    # pylint: disable=protected-access
+
     def setUp(self):
         self.config = urlutils.config
-        urlutils.config = ConfigStub()
+        urlutils.config = ConfigStub(CONFIG)
 
     def test_default_engine(self):
         """Test default search engine."""
@@ -136,7 +110,7 @@ class SearchUrlTests(TestCase):
         urlutils.config = self.config
 
 
-class IsUrlNaiveTests(TestCase):
+class IsUrlNaiveTests(unittest.TestCase):
 
     """Tests for _is_url_naive.
 
@@ -158,6 +132,8 @@ class IsUrlNaiveTests(TestCase):
         'foo',
     )
 
+    # pylint: disable=protected-access
+
     def test_urls(self):
         """Test things which are URLs."""
         for url in self.URLS:
diff --git a/qutebrowser/test/utils/test_webelem.py b/qutebrowser/test/utils/test_webelem.py
index 73b0aa28d..ce06bfecf 100644
--- a/qutebrowser/test/utils/test_webelem.py
+++ b/qutebrowser/test/utils/test_webelem.py
@@ -17,104 +17,18 @@
 # You should have received a copy of the GNU General Public License
 # along with qutebrowser.  If not, see <http://www.gnu.org/licenses/>.
 
-# pylint: disable=missing-docstring,invalid-name
-
 """Tests for the webelement utils."""
 
 import unittest
-from unittest import TestCase
-from unittest.mock import Mock
 
 from PyQt5.QtCore import QRect, QPoint
-from PyQt5.QtWebKit import QWebElement
 
 import qutebrowser.utils.webelem as webelem
+from qutebrowser.test.stubs import (FakeWebElement, FakeWebFrame,
+                                    FakeChildrenFrame)
 
 
-class FakeWebElement:
-
-    """A stub for QWebElement."""
-
-    def __init__(self, geometry=None, frame=None, null=False, visibility='',
-                 display='', attributes=None):
-        """Constructor.
-
-        Args:
-            geometry: The geometry of the QWebElement as QRect.
-            frame: The QWebFrame the element is in.
-            null: Whether the element is null or not.
-            visibility: The CSS visibility style property calue.
-            display: The CSS display style property calue.
-            attributes: Boolean HTML attributes to be added.
-
-        Raise:
-            ValueError if element is not null and geometry/frame are not given.
-        """
-        self.geometry = Mock(return_value=geometry)
-        self.webFrame = Mock(return_value=frame)
-        self.isNull = Mock(return_value=null)
-        self._visibility = visibility
-        self._display = display
-        self._attributes = attributes
-
-    def styleProperty(self, name, strategy):
-        """Return the CSS style property named name.
-
-        Only display/visibility and ComputedStyle are simulated.
-
-        Raise:
-            ValueError if strategy is not ComputedStyle or name is not
-                       visibility/display.
-        """
-        if strategy != QWebElement.ComputedStyle:
-            raise ValueError("styleProperty called with strategy != "
-                             "ComputedStyle ({})!".format(strategy))
-        if name == 'visibility':
-            return self._visibility
-        elif name == 'display':
-            return self._display
-        else:
-            raise ValueError("styleProperty called with unknown name "
-                             "'{}'".format(name))
-
-    def hasAttribute(self, name):
-        """Check if the element has an attribute named name."""
-        if self._attributes is None:
-            return False
-        else:
-            return name in self._attributes
-
-
-class FakeWebFrame:
-
-    """A stub for QWebFrame."""
-
-    def __init__(self, geometry, scroll=None, parent=None):
-        """Constructor.
-
-        Args:
-            geometry: The geometry of the frame as QRect.
-            scroll: The scroll position as QPoint.
-            parent: The parent frame.
-        """
-        if scroll is None:
-            scroll = QPoint(0, 0)
-        self.geometry = Mock(return_value=geometry)
-        self.scrollPosition = Mock(return_value=scroll)
-        self.parentFrame = Mock(return_value=parent)
-
-
-class FakeChildrenFrame:
-
-    """A stub for QWebFrame to test get_child_frames."""
-
-    def __init__(self, children=None):
-        if children is None:
-            children = []
-        self.childFrames = Mock(return_value=children)
-
-
-class IsVisibleInvalidTests(TestCase):
+class IsVisibleInvalidTests(unittest.TestCase):
 
     """Tests for is_visible with invalid elements.
 
@@ -156,7 +70,7 @@ class IsVisibleInvalidTests(TestCase):
         self.assertTrue(webelem.is_visible(elem, self.frame))
 
 
-class IsVisibleScrollTests(TestCase):
+class IsVisibleScrollTests(unittest.TestCase):
 
     """Tests for is_visible when the frame is scrolled.
 
@@ -178,7 +92,7 @@ class IsVisibleScrollTests(TestCase):
         self.assertTrue(webelem.is_visible(elem, self.frame))
 
 
-class IsVisibleCssTests(TestCase):
+class IsVisibleCssTests(unittest.TestCase):
 
     """Tests for is_visible with CSS attributes.
 
@@ -213,7 +127,7 @@ class IsVisibleCssTests(TestCase):
         self.assertFalse(webelem.is_visible(elem, self.frame))
 
 
-class IsVisibleIframeTests(TestCase):
+class IsVisibleIframeTests(unittest.TestCase):
 
     """Tests for is_visible with a child frame.
 
@@ -290,7 +204,7 @@ class IsVisibleIframeTests(TestCase):
         self.assertTrue(webelem.is_visible(self.elem4, self.frame))
 
 
-class IsWritableTests(TestCase):
+class IsWritableTests(unittest.TestCase):
 
     """Check is_writable."""
 
@@ -310,7 +224,7 @@ class IsWritableTests(TestCase):
         self.assertFalse(webelem.is_writable(elem))
 
 
-class JavascriptEscapeTests(TestCase):
+class JavascriptEscapeTests(unittest.TestCase):
 
     """Check javascript_escape.
 
@@ -326,11 +240,12 @@ class JavascriptEscapeTests(TestCase):
     )
 
     def test_fake_escape(self):
+        """Test javascript escaping."""
         for before, after in self.STRINGS:
             self.assertEqual(webelem.javascript_escape(before), after)
 
 
-class GetChildFramesTests(TestCase):
+class GetChildFramesTests(unittest.TestCase):
 
     """Check get_child_frames."""
 
diff --git a/qutebrowser/test/utils/usertypes/test_enum.py b/qutebrowser/test/utils/usertypes/test_enum.py
index 1ef472e80..707b967ee 100644
--- a/qutebrowser/test/utils/usertypes/test_enum.py
+++ b/qutebrowser/test/utils/usertypes/test_enum.py
@@ -17,17 +17,14 @@
 # You should have received a copy of the GNU General Public License
 # along with qutebrowser.  If not, see <http://www.gnu.org/licenses/>.
 
-# pylint: disable=missing-docstring
-
 """Tests for the Enum class."""
 
 import unittest
-from unittest import TestCase
 
 from qutebrowser.utils.usertypes import enum
 
 
-class EnumTests(TestCase):
+class EnumTests(unittest.TestCase):
 
     """Test simple enums.
 
diff --git a/qutebrowser/test/utils/usertypes/test_neighborlist.py b/qutebrowser/test/utils/usertypes/test_neighborlist.py
index bcc2ac165..c1af3a0e3 100644
--- a/qutebrowser/test/utils/usertypes/test_neighborlist.py
+++ b/qutebrowser/test/utils/usertypes/test_neighborlist.py
@@ -17,17 +17,14 @@
 # You should have received a copy of the GNU General Public License
 # along with qutebrowser.  If not, see <http://www.gnu.org/licenses/>.
 
-# pylint: disable=protected-access,missing-docstring
-
 """Tests for the NeighborList class."""
 
 import unittest
-from unittest import TestCase
 
 from qutebrowser.utils.usertypes import NeighborList
 
 
-class InitTests(TestCase):
+class InitTests(unittest.TestCase):
 
     """Just try to init some neighborlists.
 
@@ -62,7 +59,7 @@ class InitTests(TestCase):
         self.assertNotIn(4, nl)
 
 
-class DefaultTests(TestCase):
+class DefaultTests(unittest.TestCase):
 
     """Test the default argument.
 
@@ -86,7 +83,7 @@ class DefaultTests(TestCase):
         self.assertIsNone(nl.idx)
 
 
-class EmptyTests(TestCase):
+class EmptyTests(unittest.TestCase):
 
     """Tests with no items.
 
@@ -118,7 +115,7 @@ class EmptyTests(TestCase):
             self.nl.getitem(1)
 
 
-class ItemTests(TestCase):
+class ItemTests(unittest.TestCase):
 
     """Tests with items.
 
@@ -175,7 +172,7 @@ class ItemTests(TestCase):
         self.assertEqual(self.nl.idx, 0)
 
 
-class OneTests(TestCase):
+class OneTests(unittest.TestCase):
 
     """Tests with a list with only one item.
 
@@ -183,6 +180,8 @@ class OneTests(TestCase):
         nl: The NeighborList we're testing.
     """
 
+    # pylint: disable=protected-access
+
     def setUp(self):
         self.nl = NeighborList([1], default=1)
 
@@ -237,7 +236,7 @@ class OneTests(TestCase):
         self.assertEqual(self.nl.idx, 0)
 
 
-class BlockTests(TestCase):
+class BlockTests(unittest.TestCase):
 
     """Tests with mode=block.
 
@@ -264,7 +263,7 @@ class BlockTests(TestCase):
         self.assertEqual(self.nl.idx, 4)
 
 
-class WrapTests(TestCase):
+class WrapTests(unittest.TestCase):
 
     """Tests with mode=wrap.
 
@@ -291,7 +290,7 @@ class WrapTests(TestCase):
         self.assertEqual(self.nl.idx, 0)
 
 
-class RaiseTests(TestCase):
+class RaiseTests(unittest.TestCase):
 
     """Tests with mode=exception.
 
@@ -320,7 +319,7 @@ class RaiseTests(TestCase):
         self.assertEqual(self.nl.idx, 4)
 
 
-class SnapInTests(TestCase):
+class SnapInTests(unittest.TestCase):
 
     """Tests for the fuzzyval/_snap_in features.