tests: add tests for usertypes.DownloadTarget

tests/unit/utils/usertypes/test_downloadtarget.py

@@ -0,0 +1,54 @@
+# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
+
+# Copyright 2016 Daniel Schadt
+#
+# 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/>.
+
+"""Tests for the DownloadTarget class."""
+
+from qutebrowser.utils import usertypes
+
+import pytest
+
+
+def test_base():
+    with pytest.raises(NotImplementedError):
+        usertypes.DownloadTarget()
+
+
+def test_filename():
+    target = usertypes.FileDownloadTarget("/foo/bar")
+    assert target.filename == "/foo/bar"
+
+
+def test_fileobj():
+    fobj = object()
+    target = usertypes.FileObjDownloadTarget(fobj)
+    assert target.fileobj is fobj
+
+
+def test_openfile():
+    # Just make sure no error is raised, that should be enough.
+    usertypes.OpenFileDownloadTarget()
+
+
+@pytest.mark.parametrize('obj', [
+    usertypes.FileDownloadTarget('foobar'),
+    usertypes.FileObjDownloadTarget(None),
+    usertypes.OpenFileDownloadTarget(),
+])
+def test_class_hierarchy(obj):
+    assert isinstance(obj, usertypes.DownloadTarget)