Add unit tests

server/users/tests/test_join_class.py

@@ -0,0 +1,68 @@
+from django.test import TestCase
+from graphene import Context
+from graphene.test import Client
+
+from core.factories import UserFactory
+from users.factories import SchoolClassFactory
+from users.models import SchoolClass
+from api.schema import schema
+
+
+class JoinSchoolClassTest(TestCase):
+    def setUp(self):
+        self.client = Client(schema=schema)
+        self.user = UserFactory(username='ueli')
+        SchoolClassFactory(users=[self.user], name='Klasse 1A', code='XXXX')
+        SchoolClassFactory(name='Klasse 2B', code='YYYY')
+        self.mutation = """
+        mutation JoinClass($input: JoinClassInput!) {
+          joinClass(input: $input) {
+            success
+            schoolClass {
+              id
+              name
+            }
+          }
+        }
+        """
+        self.variables = {
+            'input': {
+                'code': 'YYYY'
+            }
+        }
+        self.context = Context(user=self.user)
+
+    def test_join_class(self):
+        self.assertEqual(self.user.school_classes.count(), 1)
+
+        executed = self.client.execute(self.mutation, variables=self.variables, context=self.context)
+        self.assertIsNone(executed.get('errors', None))
+        result = executed['data']['joinClass']
+        self.assertEqual(result['success'], True)
+        self.assertEqual(result['schoolClass']['name'], 'Klasse 2B')
+        self.assertEqual(self.user.school_classes.count(), 2)
+
+    def test_class_already_joined(self):
+        code = 'YYYY'
+        school_class = SchoolClass.objects.get(code=code)
+        school_class.users.add(self.user)
+
+        self.assertEqual(self.user.school_classes.count(), 2)
+
+        executed = self.client.execute(self.mutation, variables=self.variables, context=self.context)
+        self.assertIsNotNone(executed['errors'])
+        self.assertEqual(executed['errors'][0]['message'], 'Code ist nicht gültig')
+        self.assertEqual(self.user.school_classes.count(), 2)
+
+    def test_code_not_valid(self):
+        code = '1234'
+        self.assertEqual(self.user.school_classes.count(), 1)
+
+        executed = self.client.execute(self.mutation, variables={
+            'input': {
+                'code': code
+            }
+        }, context=self.context)
+        self.assertIsNotNone(executed['errors'])
+        self.assertEqual(executed['errors'][0]['message'], 'Code ist nicht gültig')
+        self.assertEqual(self.user.school_classes.count(), 1)