Add test for the addition and removal of documents to tags

mayan/apps/tags/tests.py

@@ -1,16 +1,54 @@
+import os
+
+from django.conf import settings
+from django.contrib.auth.models import User
+from django.core.files.base import File
 from django.test import TestCase
 
+from documents.models import Document, DocumentType
+
 from .literals import COLOR_RED
 from .models import Tag
 
+TEST_DOCUMENT_PATH = os.path.join(settings.BASE_DIR, 'contrib', 'sample_documents', 'title_page.png')
+
 
 class TagTestCase(TestCase):
     def setUp(self):
-        self.tag = Tag(label='test', color=COLOR_RED)
-        self.tag.save()
+        self.document_type = DocumentType(name='test doc type')
+        self.document_type.save()
+
+        self.document = Document(
+            document_type=self.document_type,
+            description='description',
+        )
+        self.document.save()
+
+        with open(TEST_DOCUMENT_PATH) as file_object:
+            self.document.new_version(file_object=File(file_object))
 
     def runTest(self):
-        self.failUnlessEqual(self.tag.label, 'test')
-        self.failUnlessEqual(self.tag.get_color_code(), 'red')
+        tag = Tag(label='test', color=COLOR_RED)
+        tag.save()
+        self.failUnlessEqual(tag.label, 'test')
+        self.failUnlessEqual(tag.get_color_code(), 'red')
 
-# TODO: Add test for attaching and removing documents to a tag
+    def test_addition_and_deletion_of_documents(self):
+        tag = Tag(label='test', color=COLOR_RED)
+        tag.save()
+
+        tag.documents.add(self.document)
+
+        self.assertEqual(tag.documents.count(), 1)
+        self.assertEqual(list(tag.documents.all()), [self.document])
+
+        tag.documents.remove(self.document)
+
+        self.assertEqual(tag.documents.count(), 0)
+        self.assertEqual(list(tag.documents.all()), [])
+
+        tag.delete()
+
+    def tearDown(self):
+        self.document.delete()
+        self.document_type.delete()