Add UTs for the new remote metadata client settings

Signed-off-by: cliu123 <[email protected]>

Author: cliu123

src/test/java/org/opensearch/jobscheduler/JobSchedulerSettingsTests.java

@@ -17,6 +17,8 @@
 import org.opensearch.common.unit.TimeValue;
 import org.opensearch.test.OpenSearchTestCase;
 
+import static org.opensearch.remote.metadata.common.CommonValue.AWS_DYNAMO_DB;
+
 @SuppressWarnings({ "rawtypes" })
 public class JobSchedulerSettingsTests extends OpenSearchTestCase {
 
@@ -101,4 +103,46 @@ public void testSettingsGetValueWithLegacyFallback() {
                 LegacyOpenDistroJobSchedulerSettings.JITTER_LIMIT }
         );
     }
+
+    public void testRemoteMetadataSettingsReturned() {
+        List<Setting<?>> settings = plugin.getSettings();
+        assertTrue(
+            "remote metadata settings must be returned from settings",
+            settings.containsAll(
+                Arrays.asList(
+                    JobSchedulerSettings.REMOTE_METADATA_TYPE,
+                    JobSchedulerSettings.REMOTE_METADATA_ENDPOINT,
+                    JobSchedulerSettings.REMOTE_METADATA_REGION,
+                    JobSchedulerSettings.REMOTE_METADATA_SERVICE_NAME,
+                    JobSchedulerSettings.JOB_SCHEDULER_MULTI_TENANCY_ENABLED
+                )
+            )
+        );
+    }
+
+    public void testRemoteMetadataSettingsDefaults() {
+        Settings settings = Settings.EMPTY;
+
+        assertEquals("", JobSchedulerSettings.REMOTE_METADATA_TYPE.get(settings));
+        assertEquals("", JobSchedulerSettings.REMOTE_METADATA_ENDPOINT.get(settings));
+        assertEquals("", JobSchedulerSettings.REMOTE_METADATA_REGION.get(settings));
+        assertEquals("", JobSchedulerSettings.REMOTE_METADATA_SERVICE_NAME.get(settings));
+        assertFalse(JobSchedulerSettings.JOB_SCHEDULER_MULTI_TENANCY_ENABLED.get(settings));
+    }
+
+    public void testRemoteMetadataSettingsValues() {
+        Settings settings = Settings.builder()
+            .put("plugins.jobscheduler.remote_metadata_type", AWS_DYNAMO_DB)
+            .put("plugins.jobscheduler.remote_metadata_endpoint", "https://dynamodb.us-east-1.amazonaws.com")
+            .put("plugins.jobscheduler.remote_metadata_region", "us-east-1")
+            .put("plugins.jobscheduler.remote_metadata_service_name", "es")
+            .put("plugins.jobscheduler.tenant_aware", true)
+            .build();
+
+        assertEquals(AWS_DYNAMO_DB, JobSchedulerSettings.REMOTE_METADATA_TYPE.get(settings));
+        assertEquals("https://dynamodb.us-east-1.amazonaws.com", JobSchedulerSettings.REMOTE_METADATA_ENDPOINT.get(settings));
+        assertEquals("us-east-1", JobSchedulerSettings.REMOTE_METADATA_REGION.get(settings));
+        assertEquals("es", JobSchedulerSettings.REMOTE_METADATA_SERVICE_NAME.get(settings));
+        assertTrue(JobSchedulerSettings.JOB_SCHEDULER_MULTI_TENANCY_ENABLED.get(settings));
+    }
 }