Add option to create initial superuser (#323)

* Add option to create initial superuser

* Update .env.sample

bookmarks/tests/test_create_initial_superuser_command.py

@@ -0,0 +1,45 @@
+import os
+from unittest import mock
+
+from django.test import TestCase
+
+from bookmarks.models import User
+from bookmarks.management.commands.create_initial_superuser import Command
+
+
+class TestCreateInitialSuperuserCommand(TestCase):
+
+    @mock.patch.dict(os.environ, {'LD_SUPERUSER_NAME': 'john', 'LD_SUPERUSER_PASSWORD': 'password123'})
+    def test_create_with_password(self):
+        Command().handle()
+
+        self.assertEqual(1, User.objects.count())
+
+        user = User.objects.first()
+        self.assertEqual('john', user.username)
+        self.assertTrue(user.has_usable_password())
+        self.assertTrue(user.check_password('password123'))
+
+    @mock.patch.dict(os.environ, {'LD_SUPERUSER_NAME': 'john'})
+    def test_create_without_password(self):
+        Command().handle()
+
+        self.assertEqual(1, User.objects.count())
+
+        user = User.objects.first()
+        self.assertEqual('john', user.username)
+        self.assertFalse(user.has_usable_password())
+
+    def test_create_without_options(self):
+        Command().handle()
+
+        self.assertEqual(0, User.objects.count())
+
+    @mock.patch.dict(os.environ, {'LD_SUPERUSER_NAME': 'john', 'LD_SUPERUSER_PASSWORD': 'password123'})
+    def test_create_multiple_times(self):
+        Command().handle()
+        Command().handle()
+        Command().handle()
+
+        self.assertEqual(1, User.objects.count())
+