diff --git a/mayan/apps/metadata/tests/mixins.py b/mayan/apps/metadata/tests/mixins.py
index 0c6601ed02..86d4cc5591 100644
--- a/mayan/apps/metadata/tests/mixins.py
+++ b/mayan/apps/metadata/tests/mixins.py
@@ -8,9 +8,9 @@ from .literals import (
 )
 
 
-class MetadataTypeMixin(object):
+class MetadataTypeTestMixin(object):
     def setUp(self):
-        super(MetadataTypeMixin, self).setUp()
+        super(MetadataTypeTestMixin, self).setUp()
         self.metadata_type = MetadataType.objects.create(
             name=TEST_METADATA_TYPE_NAME, label=TEST_METADATA_TYPE_LABEL
         )
diff --git a/mayan/apps/metadata/tests/test_api.py b/mayan/apps/metadata/tests/test_api.py
index 3faf586143..d45f3866a6 100644
--- a/mayan/apps/metadata/tests/test_api.py
+++ b/mayan/apps/metadata/tests/test_api.py
@@ -354,7 +354,7 @@ class DocumentMetadataAPITestCase(BaseAPITestCase):
             metadata_type=self.metadata_type, required=False
         )
 
-        with open(TEST_SMALL_DOCUMENT_PATH) as file_object:
+        with open(TEST_SMALL_DOCUMENT_PATH, 'rb') as file_object:
             self.document = self.document_type.new_document(
                 file_object=file_object,
             )
diff --git a/mayan/apps/metadata/tests/test_models.py b/mayan/apps/metadata/tests/test_models.py
index 3be8d32653..9dc63ab30d 100644
--- a/mayan/apps/metadata/tests/test_models.py
+++ b/mayan/apps/metadata/tests/test_models.py
@@ -6,10 +6,7 @@ from django.test import override_settings
 
 from common.tests import BaseTestCase
 from documents.models import DocumentType
-from documents.tests import (
-    TEST_DOCUMENT_TYPE_2_LABEL, TEST_SMALL_DOCUMENT_PATH,
-    TEST_DOCUMENT_TYPE_LABEL
-)
+from documents.tests import DocumentTestMixin, TEST_DOCUMENT_TYPE_2_LABEL
 
 from ..models import DocumentMetadata
 
@@ -18,28 +15,15 @@ from .literals import (
     TEST_CORRECT_LOOKUP_VALUE, TEST_DATE_VALIDATOR, TEST_DATE_PARSER,
     TEST_INVALID_DATE, TEST_VALID_DATE, TEST_PARSED_VALID_DATE
 )
-from .mixins import MetadataTypeMixin
+from .mixins import MetadataTypeTestMixin
 
 
 @override_settings(OCR_AUTO_OCR=False)
-class MetadataTestCase(MetadataTypeMixin, BaseTestCase):
+class MetadataTestCase(DocumentTestMixin, MetadataTypeTestMixin, BaseTestCase):
     def setUp(self):
         super(MetadataTestCase, self).setUp()
-        self.document_type = DocumentType.objects.create(
-            label=TEST_DOCUMENT_TYPE_LABEL
-        )
-
         self.document_type.metadata.create(metadata_type=self.metadata_type)
 
-        with open(TEST_SMALL_DOCUMENT_PATH) as file_object:
-            self.document = self.document_type.new_document(
-                file_object=file_object
-            )
-
-    def tearDown(self):
-        self.document_type.delete()
-        super(MetadataTestCase, self).tearDown()
-
     def test_no_default(self):
         document_metadata = DocumentMetadata(
             document=self.document, metadata_type=self.metadata_type
diff --git a/mayan/apps/metadata/tests/test_views.py b/mayan/apps/metadata/tests/test_views.py
index 4bb9cf4bcf..703a2614e6 100644
--- a/mayan/apps/metadata/tests/test_views.py
+++ b/mayan/apps/metadata/tests/test_views.py
@@ -201,7 +201,7 @@ class DocumentMetadataTestCase(GenericDocumentViewTestCase):
         self.grant_permission(permission=permission_metadata_document_add)
         self.grant_permission(permission=permission_metadata_document_edit)
 
-        with open(TEST_SMALL_DOCUMENT_PATH) as file_object:
+        with open(TEST_SMALL_DOCUMENT_PATH, 'rb') as file_object:
             document_2 = self.document_type.new_document(
                 file_object=File(file_object)
             )
@@ -247,7 +247,7 @@ class DocumentMetadataTestCase(GenericDocumentViewTestCase):
         self.grant_permission(permission=permission_document_view)
         self.grant_permission(permission=permission_metadata_document_remove)
 
-        with open(TEST_SMALL_DOCUMENT_PATH) as file_object:
+        with open(TEST_SMALL_DOCUMENT_PATH, 'rb') as file_object:
             document_2 = self.document_type.new_document(
                 file_object=File(file_object)
             )
@@ -289,7 +289,7 @@ class DocumentMetadataTestCase(GenericDocumentViewTestCase):
         self.grant_permission(permission=permission_metadata_document_add)
         self.grant_permission(permission=permission_metadata_document_edit)
 
-        with open(TEST_SMALL_DOCUMENT_PATH) as file_object:
+        with open(TEST_SMALL_DOCUMENT_PATH, 'rb') as file_object:
             document_2 = self.document_type.new_document(
                 file_object=File(file_object)
             )
diff --git a/mayan/apps/metadata/tests/test_wizard_steps.py b/mayan/apps/metadata/tests/test_wizard_steps.py
index 84bfa78f47..3f4b51cac8 100644
--- a/mayan/apps/metadata/tests/test_wizard_steps.py
+++ b/mayan/apps/metadata/tests/test_wizard_steps.py
@@ -9,17 +9,16 @@ from documents.permissions import permission_document_create
 from documents.tests import (
     GenericDocumentViewTestCase, TEST_SMALL_DOCUMENT_PATH,
 )
-from metadata.tests.literals import TEST_METADATA_VALUE_UNICODE
-from metadata.tests.mixins import MetadataTypeMixin
-
 from sources.models import WebFormSource
-
 from sources.tests.literals import (
     TEST_SOURCE_LABEL, TEST_SOURCE_UNCOMPRESS_N,
 )
 
+from .literals import TEST_METADATA_VALUE_UNICODE
+from .mixins import MetadataTypeTestMixin
 
-class DocumentUploadMetadataTestCase(MetadataTypeMixin, GenericDocumentViewTestCase):
+
+class DocumentUploadMetadataTestCase(MetadataTypeTestMixin, GenericDocumentViewTestCase):
     def setUp(self):
         super(DocumentUploadMetadataTestCase, self).setUp()
         self.login_user()
@@ -43,7 +42,7 @@ class DocumentUploadMetadataTestCase(MetadataTypeMixin, GenericDocumentViewTestC
             permission=permission_document_create, obj=self.document_type
         )
         # Upload the test document
-        with open(TEST_SMALL_DOCUMENT_PATH) as file_descriptor:
+        with open(TEST_SMALL_DOCUMENT_PATH, 'rb') as file_descriptor:
             response = self.post(
                 path=url, data={
                     'document-language': 'eng', 'source-file': file_descriptor,