new migrations; new models in apps.dash for Applets and UserApplets; new ITs to match

src/apps/dashboard/tests/integrated/test_models.py

@@ -2,7 +2,7 @@ from django.core.exceptions import ValidationError
 from django.db.utils import IntegrityError
 from django.test import TestCase
 
-from apps.dashboard.models import Item, List
+from apps.dashboard.models import Applet, Item, List, UserApplet
 from apps.lyric.models import User
 
 
@@ -68,3 +68,27 @@ class ListModelTest(TestCase):
             Item.objects.create(list=list_, text="first item")
             Item.objects.create(list=list_, text="second item")
             self.assertEqual(list_.name, "first item")
+
+class AppletModelTest(TestCase):
+    def test_applet_can_be_created(self):
+        applet = Applet.objects.create(slug="my-applet", name="My Applet", default_visible=True)
+        self.assertEqual(Applet.objects.get(slug="my-applet"), applet)
+
+    def test_applet_slug_is_unique(self):
+        Applet.objects.create(slug="my-applet", name="First")
+        with self.assertRaises(IntegrityError):
+            Applet.objects.create(slug="my-applet", name="Second")
+
+class UserAppletModelTest(TestCase):
+    def setUp(self):
+        self.user = User.objects.create(email="a@b.cde")
+        self.applet = Applet.objects.create(slug="username", name="Username")
+
+    def test_user_applet_links_user_to_applet(self):
+        ua = UserApplet.objects.create(user=self.user, applet=self.applet, visible=True)
+        self.assertIn(ua, self.user.user_applets.all())
+
+    def test_user_applet_unique_per_user_and_applet(self):
+        UserApplet.objects.create(user=self.user, applet=self.applet, visible=True)
+        with self.assertRaises(IntegrityError):
+            UserApplet.objects.create(user=self.user, applet=self.applet, visible=False)