Make network inaccessible in test QWebPages.

Maybe fixes #553.

qutebrowser/test/browser/test_tabhistory.py

@@ -22,7 +22,6 @@
 import unittest
 
 from PyQt5.QtCore import QUrl, QPoint
-from PyQt5.QtWebKitWidgets import QWebPage
 
 from qutebrowser.browser import tabhistory
 from qutebrowser.browser.tabhistory import TabHistoryItem as Item
@@ -35,7 +34,7 @@ class SerializeHistoryTests(unittest.TestCase):
     """Tests for serialize()."""
 
     def setUp(self):
-        self.page = QWebPage()
+        self.page = helpers.get_webpage()
         self.history = self.page.history()
         self.assertEqual(self.history.count(), 0)
 
@@ -109,7 +108,7 @@ class SerializeHistorySpecialTests(unittest.TestCase):
     """Tests for serialize() without items set up in setUp."""
 
     def setUp(self):
-        self.page = QWebPage()
+        self.page = helpers.get_webpage()
         self.history = self.page.history()
         self.assertEqual(self.history.count(), 0)
 

qutebrowser/test/helpers.py

@@ -25,6 +25,8 @@ import contextlib
 from unittest import mock
 
 from PyQt5.QtGui import QKeyEvent
+from PyQt5.QtWebKitWidgets import QWebPage
+from PyQt5.QtNetwork import QNetworkAccessManager
 
 
 @contextlib.contextmanager
@@ -75,6 +77,14 @@ def fake_keyevent(key, modifiers=0, text=''):
     return evtmock
 
 
+def get_webpage():
+    """Get a new QWebPage object."""
+    page = QWebPage()
+    nam = page.networkAccessManager()
+    nam.setNetworkAccessible(QNetworkAccessManager.NotAccessible)
+    return page
+
+
 class MessageModule:
 
     """A drop-in replacement for qutebrowser.utils.message."""