Implement audit trail for status changes on domain request change form

src/registrar/tests/test_admin.py

@@ -887,6 +887,46 @@ class TestDomainRequestAdmin(MockEppLib):
         ]
         self.test_helper.assert_response_contains_distinct_values(response, expected_values)
 
+    @less_console_noise_decorator
+    def test_status_logs(self):
+        """
+        Tests that the status changes are shown in a table on the domain request change form
+        """
+
+        # Create a fake domain request and domain
+        domain_request = completed_domain_request(status=DomainRequest.DomainRequestStatus.STARTED)
+
+        p = "adminpass"
+        self.client.login(username="superuser", password=p)
+        response = self.client.get(
+            "/admin/registrar/domainrequest/{}/change/".format(domain_request.pk),
+            follow=True,
+        )
+
+        # Make sure the page loaded, and that we're on the right page
+        self.assertEqual(response.status_code, 200)
+        self.assertContains(response, domain_request.requested_domain.name)
+
+        # Table will contain From None To Started
+        self.assertContains(response, '<th data-sortable scope="col" role="columnheader">')
+        self.assertContains(response, "<td>None</td>")
+        self.assertContains(response, "<td>Started</td>", count=1)
+        self.assertNotContains(response, "<td>Submitted</td>")
+
+        domain_request.submit()
+        domain_request.save()
+
+        response = self.client.get(
+            "/admin/registrar/domainrequest/{}/change/".format(domain_request.pk),
+            follow=True,
+        )
+
+        # Table will contain From None To Started
+        # Table will contain From Started To Submitted
+        self.assertContains(response, "<td>None</td>")
+        self.assertContains(response, "<td>Started</td>", count=2)
+        self.assertContains(response, "<td>Submitted</td>")
+
     @less_console_noise_decorator
     def test_analyst_can_see_and_edit_alternative_domain(self):
         """Tests if an analyst can still see and edit the alternative domain field"""