diff --git a/python/plugins/__init__.py b/python/plugins/__init__.py
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/python/plugins/processing/__init__.py b/python/plugins/processing/__init__.py
index 5f7045df49d8..8d48cfb07431 100644
--- a/python/plugins/processing/__init__.py
+++ b/python/plugins/processing/__init__.py
@@ -30,8 +30,6 @@
 from processing.tools.vector import *
 from processing.tools.raster import *
 from processing.tools.system import *
-from processing.tests.TestData import loadTestData
-
 
 def classFactory(iface):
     from processing.ProcessingPlugin import ProcessingPlugin
diff --git a/tests/src/python/plugins/processing/ParametersTest.py b/tests/src/python/plugins/processing/ParametersTest.py
index ff597da106f0..2084d973cd22 100644
--- a/tests/src/python/plugins/processing/ParametersTest.py
+++ b/tests/src/python/plugins/processing/ParametersTest.py
@@ -25,11 +25,7 @@
 
 __revision__ = '$Format:%H$'
 
-from utilities import getQgisTestApp, unittest
-
-QGISAPP, CANVAS, IFACE, PARENT = getQgisTestApp()
-
-from plugins.processing.core import parameters
+from utilities import unittest
 
 from plugins.processing.core.parameters import ParameterNumber
 from plugins.processing.core.parameters import ParameterCrs
@@ -61,10 +57,15 @@ def testParameterExtent(self):
         assert not param.setValue('0,2,0')
         assert not param.setValue('0,2,0,a')
         assert param.setValue('0,2,2,4')
-        assert param.value == '0,2,2,4'
+        self.assertEqual(param.value, '0,2,2,4')
         assert param.setValue(None)
-        assert param.value == param.default, 'Result: {}, Expected: {}'.format(param.value, param.default)
+        self.assertEqual(param.value, None)
 
+        required = ParameterExtent('name', 'desc', optional=False)
+        first_value = '0,2,2,4'
+        assert required.setValue(first_value)
+        assert not required.setValue(None)
+        self.assertEqual(required.value, first_value)
 
 def suite():
     suite = unittest.makeSuite(ParametersTest, 'test')