diff --git a/src/registrar/tests/test_reports.py b/src/registrar/tests/test_reports.py
index 4a41238c7..b11500ea9 100644
--- a/src/registrar/tests/test_reports.py
+++ b/src/registrar/tests/test_reports.py
@@ -900,6 +900,7 @@ class MemberExportTest(MockDbForIndividualTests, MockEppLib):
         # spaces and leading/trailing whitespace
         csv_content = csv_content.replace(",,", "").replace(",", "").replace(" ", "").replace("\r\n", "\n").strip()
         expected_content = expected_content.replace(",,", "").replace(",", "").replace(" ", "").strip()
+        self.maxDiff = None
         self.assertEqual(csv_content, expected_content)
 
 
diff --git a/src/registrar/tests/test_views_domain.py b/src/registrar/tests/test_views_domain.py
index aedfc41c2..a3e324d42 100644
--- a/src/registrar/tests/test_views_domain.py
+++ b/src/registrar/tests/test_views_domain.py
@@ -759,7 +759,7 @@ class TestDomainManagers(TestDomainOverview):
 
         self.app.set_cookie(settings.SESSION_COOKIE_NAME, session_id)
         success_page = success_result.follow()
-        self.assertContains(success_page, "Could not send email invitation.")
+        self.assertContains(success_page, "Failed to send email.")
 
     @boto3_mocking.patching
     @less_console_noise_decorator
diff --git a/src/registrar/tests/test_views_portfolio.py b/src/registrar/tests/test_views_portfolio.py
index b6b275c99..18f68a7fb 100644
--- a/src/registrar/tests/test_views_portfolio.py
+++ b/src/registrar/tests/test_views_portfolio.py
@@ -2402,16 +2402,17 @@ class TestPortfolioInvitedMemberEditDomainsView(TestPortfolioInvitedMemberDomain
         # Verify that the invitation email was sent
         mock_send_domain_email.assert_called_once()
         call_args = mock_send_domain_email.call_args.kwargs
-        self.assertEqual(call_args["email"], "info@example.com")
+        self.assertEqual(call_args["email"], "invited@example.com")
         self.assertEqual(call_args["requestor"], self.user)
         self.assertEqual(list(call_args["domains"]), list(expected_domains))
-        self.assertIsNone(call_args.get("is_member_of_different_org"))
+        self.assertFalse(call_args.get("is_member_of_different_org"))
 
 
     @less_console_noise_decorator
     @override_flag("organization_feature", active=True)
     @override_flag("organization_members", active=True)
-    def test_post_with_existing_and_new_added_domains(self):
+    @patch("registrar.views.portfolios.send_domain_invitation_email")
+    def test_post_with_existing_and_new_added_domains(self, mock_send_domain_email):
         """Test updating existing and adding new invitations."""
         self.client.force_login(self.user)