Add tests for usertypes.Timer.

tests/utils/usertypes/test_timer.py

@@ -0,0 +1,86 @@
+# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
+
+# Copyright 2015 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=protected-access
+
+"""Tests for Timer."""
+
+from qutebrowser.utils import usertypes
+
+import pytest
+from PyQt5.QtCore import QObject
+
+
+class Parent(QObject):
+
+    """Class for test_parent()."""
+
+    pass
+
+
+def test_parent():
+    """Make sure the parent is set correctly."""
+    parent = Parent()
+    t = usertypes.Timer(parent)
+    assert t.parent() is parent
+
+
+def test_named():
+    """Make sure the name is set correctly."""
+    t = usertypes.Timer(name='foobar')
+    assert t._name == 'foobar'
+    assert t.objectName() == 'foobar'
+    assert repr(t) == "<qutebrowser.utils.usertypes.Timer name='foobar'>"
+
+
+def test_unnamed():
+    """Make sure an unnamed Timer is named correctly."""
+    t = usertypes.Timer()
+    assert not t.objectName()
+    assert t._name == 'unnamed'
+    assert repr(t) == "<qutebrowser.utils.usertypes.Timer name='unnamed'>"
+
+
+def test_set_interval_overflow():
+    """Make sure setInterval raises OverflowError with very big numbers."""
+    t = usertypes.Timer()
+    with pytest.raises(OverflowError):
+        t.setInterval(2 ** 64)
+
+
+def test_start_overflow():
+    """Make sure start raises OverflowError with very big numbers."""
+    t = usertypes.Timer()
+    with pytest.raises(OverflowError):
+        t.start(2 ** 64)
+
+
+def test_timeout_start(qtbot):
+    """Make sure the timer works with start()."""
+    t = usertypes.Timer()
+    with qtbot.waitSignal(t.timeout, raising=True):
+        t.start(200)
+
+
+def test_timeout_set_interval(qtbot):
+    """Make sure the timer works with setInterval()."""
+    t = usertypes.Timer()
+    with qtbot.waitSignal(t.timeout, raising=True):
+        t.setInterval(200)
+        t.start()