Invalidate the layer cache in tests

Signed-off-by: Roberto Rosario <roberto.rosario@mayan-edms.com>

mayan/apps/common/tests/base.py

@@ -5,6 +5,7 @@ from django.test import TestCase
 from django_downloadview import assert_download_response
 
 from mayan.apps.acls.tests.mixins import ACLTestCaseMixin
+from mayan.apps.converter.tests.mixins import LayerTestCaseMixin
 from mayan.apps.permissions.classes import Permission
 from mayan.apps.smart_settings.classes import Namespace
 from mayan.apps.user_management.tests.mixins import UserTestMixin
@@ -19,7 +20,7 @@ from .mixins import (
 
 
 class BaseTestCase(
-    SilenceLoggerTestCaseMixin, ConnectionsCheckTestCaseMixin,
+    LayerTestCaseMixin, SilenceLoggerTestCaseMixin, ConnectionsCheckTestCaseMixin,
     RandomPrimaryKeyModelMonkeyPatchMixin, ACLTestCaseMixin,
     ModelTestCaseMixin, OpenFileCheckTestCaseMixin,
     TempfileCheckTestCasekMixin, UserTestMixin, TestCase

mayan/apps/converter/tests/mixins.py

@@ -14,6 +14,12 @@ from .literals import (
 )
 
 
+class LayerTestCaseMixin(object):
+    def setUp(self):
+        super(LayerTestCaseMixin, self).setUp()
+        Layer.invalidate_cache()
+
+
 class LayerTestMixin(PermissionTestMixin):
     test_layer = Layer(
         label='Test layer', name='test_layer', order=1000,
@@ -38,8 +44,6 @@ class LayerTestMixin(PermissionTestMixin):
             'select': self.test_layer_permission,
             'view': self.test_layer_permission,
         }
-        Layer.invalidate_cache()
-        Layer.update()
 
 
 class TransformationTestMixin(LayerTestMixin):