Avoid using qapp with autouse=True

tests/conftest.py

@@ -24,7 +24,6 @@
 import os
 import sys
 import warnings
-import mimetypes
 
 import pytest
 import hypothesis
@@ -36,7 +35,6 @@ from helpers import logfail
 from helpers.logfail import fail_on_logging
 from helpers.messagemock import message_mock
 from helpers.fixtures import *  # noqa: F403
-from qutebrowser.browser import qutescheme
 from qutebrowser.utils import qtutils, standarddir, usertypes, utils, version
 from qutebrowser.misc import objects
 from qutebrowser.qt import sip
@@ -287,26 +285,3 @@ def pytest_runtest_makereport(item, call):
     outcome = yield
     rep = outcome.get_result()
     setattr(item, "rep_" + rep.when, rep)
-
-
-@pytest.fixture(scope='session', autouse=True)
-def register_testdata_scheme_handler(qapp, request):
-    try:
-        global _qute_scheme_handler
-        from qutebrowser.browser.webengine import webenginequtescheme
-        from PyQt5.QtWebEngineWidgets import QWebEngineProfile
-        _qute_scheme_handler = webenginequtescheme.QuteSchemeHandler(parent=qapp)
-        _qute_scheme_handler.install(QWebEngineProfile.defaultProfile())
-    except ImportError:
-        pass
-
-    @qutescheme.add_handler('testdata')
-    def handler(url):
-        file_abs = os.path.abspath(os.path.dirname(__file__))
-        filename = os.path.join(file_abs, 'end2end',
-                                url.path().lstrip('/'))
-        with open(filename, 'rb') as f:
-            data = f.read()
-
-        mimetype, _encoding = mimetypes.guess_type(filename)
-        return mimetype, data

tests/helpers/fixtures.py

@@ -31,6 +31,8 @@ import itertools
 import textwrap
 import unittest.mock
 import types
+import mimetypes
+import os.path
 
 import attr
 import pytest
@@ -44,7 +46,7 @@ import helpers.utils
 from qutebrowser.config import (config, configdata, configtypes, configexc,
                                 configfiles, configcache)
 from qutebrowser.utils import objreg, standarddir, utils, usertypes
-from qutebrowser.browser import greasemonkey, history
+from qutebrowser.browser import greasemonkey, history, qutescheme
 from qutebrowser.browser.webkit import cookies
 from qutebrowser.misc import savemanager, sql, objects
 from qutebrowser.keyinput import modeman
@@ -152,10 +154,33 @@ def greasemonkey_manager(data_tmpdir):
     objreg.delete('greasemonkey')
 
 
+@pytest.fixture(scope='session')
+def testdata_scheme(qapp):
+    try:
+        global _qute_scheme_handler
+        from qutebrowser.browser.webengine import webenginequtescheme
+        from PyQt5.QtWebEngineWidgets import QWebEngineProfile
+        _qute_scheme_handler = webenginequtescheme.QuteSchemeHandler(parent=qapp)
+        _qute_scheme_handler.install(QWebEngineProfile.defaultProfile())
+    except ImportError:
+        pass
+
+    @qutescheme.add_handler('testdata')
+    def handler(url):
+        file_abs = os.path.abspath(os.path.dirname(__file__))
+        filename = os.path.join(file_abs, '..', 'end2end',
+                                url.path().lstrip('/'))
+        with open(filename, 'rb') as f:
+            data = f.read()
+
+        mimetype, _encoding = mimetypes.guess_type(filename)
+        return mimetype, data
+
+
 @pytest.fixture
 def webkit_tab(qtbot, tab_registry, cookiejar_and_cache, mode_manager,
                session_manager_stub, greasemonkey_manager, fake_args,
-               host_blocker_stub, config_stub):
+               host_blocker_stub, config_stub, testdata_scheme):
     # Make sure error logging via JS fails tests
     config_stub.val.content.javascript.log = {
         'info': 'info',
@@ -186,7 +211,7 @@ def webkit_tab(qtbot, tab_registry, cookiejar_and_cache, mode_manager,
 def webengine_tab(qtbot, tab_registry, fake_args, mode_manager,
                   session_manager_stub, greasemonkey_manager,
                   redirect_webengine_data, tabbed_browser_stubs,
-                  config_stub, qapp):
+                  config_stub, qapp, testdata_scheme):
     # Make sure error logging via JS fails tests
     config_stub.val.content.javascript.log = {
         'info': 'info',