RPM Support

Here's a diff to even be able to test this, it looks like the fixture URL is wrong.

diff --git a/pulp_rpm/tests/functional/api/test_sync.py b/pulp_rpm/tests/functional/api/test_sync.py
index 9e1be88c..210bf808 100644
--- a/pulp_rpm/tests/functional/api/test_sync.py
+++ b/pulp_rpm/tests/functional/api/test_sync.py
@@ -28,7 +28,7 @@ from pulp_rpm.tests.functional.constants import (
     RPM_ADVISORY_DIFFERENT_PKGLIST_URL,
     RPM_ADVISORY_DIFFERENT_REPO_URL,
     RPM_ADVISORY_INCOMPLETE_PKG_LIST_URL,
-    RPM_ADVISORY_NO_DATES,
+    RPM_ADVISORY_NO_UPDATED_DATE,
     RPM_ADVISORY_TEST_ADDED_COUNT,
     RPM_ADVISORY_TEST_ID,
     RPM_ADVISORY_TEST_ID_NEW,
@@ -854,7 +854,6 @@ class BasicSyncTestCase(PulpTestCase):
 
         self.assertIn(error_msg, task_result["error"]["description"])
 
-    @unittest.skip("FIXME: Enable this test after https://pulp.plan.io/issues/6605 is fixed")
     def test_sync_advisory_no_updated_date(self):
         """Test sync advisory with no update.
 
@@ -871,7 +870,7 @@ class BasicSyncTestCase(PulpTestCase):
         # add remote to clean up
         self.addCleanup(self.remote_api.delete, remote.pulp_href)
 
-        body = gen_rpm_remote(RPM_ADVISORY_NO_DATES)
+        body = gen_rpm_remote(RPM_ADVISORY_NO_UPDATED_DATE)
         remote = self.remote_api.create(body)
 
         # re-sync
diff --git a/pulp_rpm/tests/functional/constants.py b/pulp_rpm/tests/functional/constants.py
index fee2331b..6529638c 100644
--- a/pulp_rpm/tests/functional/constants.py
+++ b/pulp_rpm/tests/functional/constants.py
@@ -258,9 +258,9 @@ in the standard unsigned rpm repository, but pkglist intersection is non-empty a
 to either pkglist.
 """
 
-RPM_ADVISORY_NO_DATES = urljoin(PULP_FIXTURES_BASE_URL, "rpm-advisory-no-dates")
+RPM_ADVISORY_NO_UPDATED_DATE = urljoin(PULP_FIXTURES_BASE_URL, "rpm-advisory-no-update-date")
 """The URL to a repository containing Advisories with same id and version as the ones
-in the standard unsigned rpm repository, but no update_date or issue_date.
+in the standard unsigned rpm repository, but no updated_date.
 """
 
 RPM_ADVISORY_TEST_ID = "RHEA-2012:0056"

What I see is that the original sync failure no longer exists (probably fixed by https://pulp.plan.io/issues/8162) (assuming that the smash test fully captures the issue), but the test expectations still aren't satisfied. The new errata is added but the old errata is not removed.