Move short_tmpdir fixture to conftest.py

tests/helpers/fixtures.py

@@ -27,6 +27,7 @@ See https://pytest.org/latest/fixture.html
 
 import sys
 import collections
+import tempfile
 import itertools
 import textwrap
 import unittest.mock
@@ -34,6 +35,7 @@ import types
 import os
 
 import pytest
+import py.path  # pylint: disable=no-name-in-module
 
 import helpers.stubs as stubsmod
 from qutebrowser.config import config
@@ -470,3 +472,10 @@ def redirect_xdg_data(data_tmpdir, monkeypatch):
     we need to set the environment variable to redirect data access.
     """
     monkeypatch.setenv('XDG_DATA_HOME', str(data_tmpdir))
+
+
+@pytest.fixture()
+def short_tmpdir():
+    """A short temporary directory for a XDG_RUNTIME_DIR."""
+    with tempfile.TemporaryDirectory() as tdir:
+        yield py.path.local(tdir)  # pylint: disable=no-member

tests/unit/misc/test_ipc.py

@@ -26,12 +26,10 @@ import collections
 import logging
 import json
 import hashlib
-import tempfile
 import subprocess
 from unittest import mock
 
 import pytest
-import py.path  # pylint: disable=no-name-in-module
 from PyQt5.QtCore import pyqtSignal, QObject
 from PyQt5.QtNetwork import QLocalServer, QLocalSocket, QAbstractSocket
 from PyQt5.QtTest import QSignalSpy
@@ -45,12 +43,6 @@ from helpers import stubs
 pytestmark = pytest.mark.usefixtures('qapp')
 
 
-@pytest.fixture()
-def short_tmpdir():
-    with tempfile.TemporaryDirectory() as tdir:
-        yield py.path.local(tdir)  # pylint: disable=no-member
-
-
 @pytest.fixture(autouse=True)
 def shutdown_server():
     """If ipc.send_or_listen was called, make sure to shut server down."""