UPD: improved global test-suite.

dav_base/tests/utils.py

@@ -0,0 +1,12 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+import os
+from tempfile import mkdtemp as _mkdtmp
+
+
+def mkdtemp(prefix):
+    dirname = os.path.dirname
+    pkg_base_dir = dirname(dirname(dirname(__file__)))
+    tmp_dir = os.path.join(pkg_base_dir, 'tmp')
+    os.makedirs(tmp_dir, exist_ok=True)
+    return _mkdtmp(prefix=prefix, dir=tmp_dir)