Add missing import

Author: nyalldawson

tests/src/python/test_provider_afs.py

@@ -18,7 +18,7 @@
 import tempfile
 import shutil
 
-from qgis.PyQt.QtCore import QCoreApplication, Qt, QObject, QDateTime
+from qgis.PyQt.QtCore import QCoreApplication, Qt, QObject, QDate, QDateTime
 
 from qgis.core import (
     QgsVectorLayer,
@@ -27,7 +27,8 @@
     QgsCoordinateReferenceSystem,
     QgsApplication,
     QgsSettings,
-    QgsRectangle
+    QgsRectangle,
+    NULL
 )
 from qgis.testing import (start_app,
                           unittest