Revert "Update test assertions to be less brittle"

This reverts commit 5df2748.

Author: nickmoreton

tests/test_image_chooser_views.py

@@ -40,15 +40,18 @@ def test_creates_image_if_asset_id_not_recognised(self):
         # Assertions
         create_object_mock.assert_called_once()
         self.assertEqual(response.status_code, 200)
-        response_json = response.json()
-        self.assertEqual(response_json["step"], "chosen")
-        result = response_json["result"]
-        self.assertEqual(result["id"], str(image.id))
-        self.assertEqual(result["title"], image.title)
         self.assertEqual(
-            result["edit_url"], reverse("wagtailimages:edit", args=[image.id])
+            response.json(),
+            {
+                "step": "chosen",
+                "result": {
+                    "id": str(image.id),
+                    "title": image.title,
+                    "preview": mock.ANY,
+                    "edit_url": reverse("wagtailimages:edit", args=[image.id]),
+                },
+            },
         )
-        self.assertIn("preview", result)
 
     @mock.patch("wagtail_bynder.views.image.ImageChosenView.update_object")
     def test_uses_existing_image_without_updating(self, update_object_mock):
@@ -64,15 +67,18 @@ def test_uses_existing_image_without_updating(self, update_object_mock):
 
         # Check response content
         self.assertEqual(response.status_code, 200)
-        response_json = response.json()
-        self.assertEqual(response_json["step"], "chosen")
-        result = response_json["result"]
-        self.assertEqual(result["id"], str(image.id))
-        self.assertEqual(result["title"], image.title)
         self.assertEqual(
-            result["edit_url"], reverse("wagtailimages:edit", args=[image.id])
+            response.json(),
+            {
+                "step": "chosen",
+                "result": {
+                    "id": str(image.id),
+                    "title": image.title,
+                    "preview": mock.ANY,
+                    "edit_url": reverse("wagtailimages:edit", args=[image.id]),
+                },
+            },
         )
-        self.assertIn("preview", result)
 
     @override_settings(BYNDER_SYNC_EXISTING_IMAGES_ON_CHOOSE=True)
     @mock.patch("wagtail_bynder.views.image.ImageChosenView.update_object")
@@ -88,12 +94,15 @@ def test_uses_existing_image_and_updates_it(self, update_object_mock):
 
         # Check response content
         self.assertEqual(response.status_code, 200)
-        response_json = response.json()
-        self.assertEqual(response_json["step"], "chosen")
-        result = response_json["result"]
-        self.assertEqual(result["id"], str(image.id))
-        self.assertEqual(result["title"], image.title)
         self.assertEqual(
-            result["edit_url"], reverse("wagtailimages:edit", args=[image.id])
+            response.json(),
+            {
+                "step": "chosen",
+                "result": {
+                    "id": str(image.id),
+                    "title": image.title,
+                    "preview": mock.ANY,
+                    "edit_url": reverse("wagtailimages:edit", args=[image.id]),
+                },
+            },
         )
-        self.assertIn("preview", result)