feat: create_instance_util test utility

dash/tests.py

@@ -44,6 +44,19 @@ def create_configurations(t: TestCase):
         )
 
 
+def create_instance_util(
+    t: TestCase, c: Client, instance_name: str, config: InstanceConfiguration
+):
+    payload = {"name": instance_name, "configuration": config.name}
+
+    resp = c.post(reverse("dash.instances.new"), payload)
+    t.assertEqual(resp.status_code, 302)
+    t.assertEqual(
+        resp.headers["location"],
+        reverse("billing.invoice.generate", args=(instance_name,)),
+    )
+
+
 class DashHome(TestCase):
     """
     Tests create new app view
@@ -159,19 +172,14 @@ class CreateInstance(TestCase):
 
         self.assertEqual(Instance.objects.filter(name=payload["name"]).exists(), False)
 
-        resp = c.post(reverse("dash.instances.new"), payload)
+        instance_name = "test_create_instance_renders"
-        self.assertEqual(resp.status_code, 302)
+        create_instance_util(
-        self.assertEqual(
+            t=self, c=c, instance_name=instance_name, config=self.instance_config[0]
-            resp.headers["location"],
-            reverse(
-                "billing.invoice.generate",
-                args=(payload["name"],),
-            ),
         )
 
         self.assertEqual(
             Instance.objects.filter(
-                name=payload["name"],
+                name=instance_name,
                 owned_by=self.user,
                 configuration_id=self.instance_config[0],
             ).exists(),