test: reorganize test structure in preparation of top folder renaming (opendatahub-io#976)

* test: reorganize test structure in preparation of top folder renaming

Restructure model_registry tests into a clearer hierarchy:
- Split into model_registry/ and model_catalog/ top-level domains
- Group model_catalog tests by function: catalog_config, metadata, upgrade

Author: fege

…sts/model_registry/async_job/__init__.py …odel_registry/cluster_health/__init__.pytests/model_registry/async_job/__init__.py renamed to tests/model_registry/cluster_health/__init__.py tests/model_registry/async_job/__init__.py renamed to tests/model_registry/cluster_health/__init__.py

@@ -1,12 +1,8 @@
 import shlex
-from simple_logger.logger import get_logger
-
 import pytest
 from ocp_utilities.monitoring import Prometheus
 from pyhelper_utils.shell import run_command
 
-LOGGER = get_logger(name=__name__)
-
 
 def get_prometheus_k8s_token(duration: str = "1800s") -> str:
     token_command = f"oc create token prometheus-k8s -n openshift-monitoring --duration={duration}"
@@ -21,16 +17,3 @@ def prometheus_for_monitoring() -> Prometheus:
         verify_ssl=False,
         bearer_token=get_prometheus_k8s_token(duration="86400s"),
     )
-
-
-@pytest.mark.order("last")
-def test_mr_operator_not_oomkilled(prometheus_for_monitoring: Prometheus):
-    result = prometheus_for_monitoring.query_sampler(
-        query='kube_pod_container_status_last_terminated_reason{reason="OOMKilled"}'
-    )
-    if result:
-        for entry in result:
-            LOGGER.info(entry)
-            pod_name = entry["metric"]["pod"]
-            if pod_name.startswith("model-registry-operator-controller-manager"):
-                pytest.fail(f"Pod {pod_name} was oomkilled: {entry}")

…odel_registry/test_mr_operator_health.py …odel_registry/cluster_health/conftest.pytests/model_registry/test_mr_operator_health.py renamed to tests/model_registry/cluster_health/conftest.py tests/model_registry/test_mr_operator_health.py renamed to tests/model_registry/cluster_health/conftest.py

@@ -0,0 +1,19 @@
+from simple_logger.logger import get_logger
+
+import pytest
+from ocp_utilities.monitoring import Prometheus
+
+LOGGER = get_logger(name=__name__)
+
+
+@pytest.mark.order("last")
+def test_mr_operator_not_oomkilled(prometheus_for_monitoring: Prometheus):
+    result = prometheus_for_monitoring.query_sampler(
+        query='kube_pod_container_status_last_terminated_reason{reason="OOMKilled"}'
+    )
+    if result:
+        for entry in result:
+            LOGGER.info(entry)
+            pod_name = entry["metric"]["pod"]
+            if pod_name.startswith("model-registry-operator-controller-manager"):
+                pytest.fail(f"Pod {pod_name} was oomkilled: {entry}")