Fix tests without DISPLAY.

tests/unit/browser/test_cookies.py

@@ -128,7 +128,7 @@ def test_purge_old_cookies(config_stub, fake_save_manager):
     assert raw_cookies == [COOKIE1, COOKIE2, SESSION_COOKIE]
 
 
-def test_save(config_stub, fake_save_manager, monkeypatch):
+def test_save(config_stub, fake_save_manager, monkeypatch, qapp):
     """Test that expired and session cookies are not saved."""
     monkeypatch.setattr(lineparser,
                         'LineParser', LineparserSaveStub)
@@ -156,7 +156,7 @@ def test_cookies_changed_emit(config_stub, fake_save_manager,
 
 
 def test_cookies_changed_not_emitted(config_stub, fake_save_manager,
-                                     monkeypatch):
+                                     monkeypatch, qapp):
     """Test that changed is not emitted when nothing changes."""
     config_stub.data = CONFIG_COOKIES_ENABLED
     monkeypatch.setattr(lineparser,

tests/unit/config/test_configtypes_hypothesis.py

@@ -18,6 +18,8 @@
 
 """Hypothesis tests for qutebrowser.config.configtypes."""
 
+import os
+import sys
 import inspect
 import functools
 
@@ -44,6 +46,11 @@ def gen_classes():
 @hypothesis.given(strategies.text())
 @hypothesis.example('\x00')
 def test_configtypes_hypothesis(klass, s):
+    if (klass in [configtypes.File, configtypes.UserStyleSheet] and
+            sys.platform == 'linux' and
+            not os.environ.get('DISPLAY', '')):
+        pytest.skip("No DISPLAY available")
+
     try:
         klass().validate(s)
     except configexc.ValidationError:

tests/unit/misc/test_ipc.py

@@ -45,6 +45,9 @@ from helpers import stubs  # pylint: disable=import-error
 Args = collections.namedtuple('Args', 'basedir')
 
 
+pytestmark = pytest.mark.usefixtures('qapp')
+
+
 @pytest.yield_fixture()
 def short_tmpdir():
     with tempfile.TemporaryDirectory() as tdir: