diff --git a/server/books/tests/test_create_snapshot.py b/server/books/tests/test_create_snapshot.py
new file mode 100644
index 00000000..40f6d1be
--- /dev/null
+++ b/server/books/tests/test_create_snapshot.py
@@ -0,0 +1,93 @@
+from django.test import TestCase, RequestFactory
+from graphene.test import Client
+from graphql_relay import to_global_id
+
+from api.schema import schema
+from books.factories import ModuleFactory, ChapterFactory, ContentBlockFactory
+from users.models import User, SchoolClass
+from users.services import create_users
+
+MODULE_QUERY = """
+query ModulesQuery($slug: String!) {
+  module(slug: $slug) {
+      id
+      title
+      chapters {
+        edges {
+            node {
+                id
+                contentBlocks {
+                    edges {
+                        node {
+                            id
+                            visibleFor {
+                                edges {
+                                    node {
+                                        name
+                                    }
+                                }
+                            }
+                            hiddenFor {
+                                edges {
+                                    node {
+                                        name
+                                    }   
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+      }
+  }  
+}
+"""
+
+
+class CreateSnapshotTestCase(TestCase):
+    def setUp(self):
+        create_users()
+        skillbox_class = SchoolClass.objects.get(name='skillbox')
+        second_class = SchoolClass.objects.get(name='second_class')
+        # teacher will create snapshot
+        self.teacher = User.objects.get(username='teacher')
+        self.module = ModuleFactory(slug='some-module')
+        # module M has a chapter
+        self.chapter = ChapterFactory(parent=self.module, slug='some-chapter')
+        # chapter has some content blocks a, b, c
+        self.a = ContentBlockFactory(parent=self.chapter, module=self.module, slug='cb-a')
+        self.b = ContentBlockFactory(parent=self.chapter, module=self.module, slug='cb-b')
+        # content block c is user created
+        self.c = ContentBlockFactory(parent=self.chapter, owner=self.teacher, user_created=True, module=self.module, slug='cb-c')
+        # content block a and c are visible to school class X
+        self.b.hidden_for.add(skillbox_class)
+        self.c.visible_for.add(skillbox_class)
+
+        request = RequestFactory().get('/')
+        request.user = self.teacher
+        self.client = Client(schema=schema, context_value=request)
+
+
+        # we make a snapshot S of the module M
+        # snapshot S looks like module M for school class X
+
+    def test_visible_and_hidden(self):
+        result = self.client.execute(MODULE_QUERY, variables={
+            'slug': self.module.slug
+        })
+        self.assertIsNone(result.get('errors'))
+        module = result.get('data').get('module')
+        chapter = module.get('chapters').get('edges')[0]['node']
+        self.assertIsNotNone(chapter)
+        content_blocks = [edge['node'] for edge in chapter.get('contentBlocks').get('edges')]
+        content_block_ids = [node['id'] for node in content_blocks]
+        self.assertTrue(to_global_id('ContentBlockNode', self.a.id) in content_block_ids)
+        self.assertTrue(to_global_id('ContentBlockNode', self.b.id) in content_block_ids)
+        self.assertTrue(to_global_id('ContentBlockNode', self.c.id) in content_block_ids)
+        b = [node for node in content_blocks if node['id'] == to_global_id('ContentBlockNode', self.b.id)][0]
+        c = [node for node in content_blocks if node['id'] == to_global_id('ContentBlockNode', self.c.id)][0]
+        self.assertTrue('skillbox' in [edge['node']['name'] for edge in b.get('hiddenFor').get('edges')])
+        self.assertTrue('skillbox' in [edge['node']['name'] for edge in c.get('visibleFor').get('edges')])
+
+