add tests for method

Author: DiogoP98

storm-server/src/test/java/org/apache/storm/daemon/nimbus/NimbusTest.java

@@ -25,24 +25,74 @@
 
 import org.apache.storm.Config;
 import org.apache.storm.DaemonConfig;
+import org.apache.storm.blobstore.BlobStore;
+import org.apache.storm.blobstore.KeySequenceNumber;
+import org.apache.storm.blobstore.LocalFsBlobStore;
+import org.apache.storm.cluster.IStormClusterState;
 import org.apache.storm.generated.InvalidTopologyException;
+import org.apache.storm.generated.KeyNotFoundException;
 import org.apache.storm.generated.StormTopology;
+import org.apache.storm.metric.StormMetricsRegistry;
+import org.apache.storm.nimbus.ILeaderElector;
+import org.apache.storm.nimbus.NimbusInfo;
+import org.apache.storm.scheduler.INimbus;
 import org.apache.storm.scheduler.resource.strategies.priority.DefaultSchedulingPriorityStrategy;
 import org.apache.storm.scheduler.resource.strategies.scheduling.DefaultResourceAwareStrategy;
 import org.apache.storm.scheduler.resource.strategies.scheduling.GenericResourceAwareStrategyOld;
 import org.apache.storm.scheduler.resource.strategies.scheduling.RoundRobinResourceAwareStrategy;
+import org.apache.storm.security.auth.IGroupMappingServiceProvider;
 import org.apache.storm.testing.TestWordSpout;
 import org.apache.storm.topology.TopologyBuilder;
 import org.apache.storm.utils.ServerUtils;
 import org.apache.storm.utils.Time;
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
+import org.mockito.Mock;
+import org.mockito.MockedConstruction;
+import org.mockito.MockitoAnnotations;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.junit.jupiter.api.Assertions.fail;
 import static org.junit.jupiter.api.Assertions.assertNull;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.doThrow;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.mockConstruction;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+class NimbusTest {
+    private static final String BLOB_FILE_KEY = "file-key";
+
+    @Mock
+    private StormMetricsRegistry metricRegistry;
+    @Mock
+    private INimbus iNimbus;
+    @Mock
+    private IStormClusterState stormClusterState;
+    @Mock
+    private NimbusInfo nimbusInfo;
+    @Mock
+    private LocalFsBlobStore localBlobStore;
+    @Mock
+    private ILeaderElector leaderElector;
+    @Mock
+    private IGroupMappingServiceProvider groupMapper;
+
+    private Nimbus nimbus;
+
+    @BeforeEach
+    public void setUp() throws Exception {
+        MockitoAnnotations.openMocks(this).close();
+
+        Map<String, Object> conf = Map.of(DaemonConfig.NIMBUS_MONITOR_FREQ_SECS, 10);
+        nimbus = new Nimbus(conf, iNimbus, stormClusterState, nimbusInfo, localBlobStore, leaderElector, groupMapper, metricRegistry);
+    }
 
-public class NimbusTest {
     @Test
     public void testMemoryLoadLargerThanMaxHeapSize() {
         // Topology will not be able to be successfully scheduled: Config TOPOLOGY_WORKER_MAX_HEAP_SIZE_MB=128.0 < 129.0,
@@ -112,4 +162,41 @@ public void validateNoTopoConfOverrides() {
         Map<String, Object> normalized = Nimbus.normalizeConf(conf, topoConf, topology);
         assertNull(normalized.get(Config.STORM_WORKERS_ARTIFACTS_DIR));
     }
+
+    @Test
+    void testCreateStateInZookeeper() {
+        nimbus.createStateInZookeeper(BLOB_FILE_KEY);
+
+        verify(stormClusterState).setupBlob(eq(BLOB_FILE_KEY), eq(nimbusInfo), any());
+    }
+
+    @Test
+    void testCreateStateInZookeeperWithoutLocalFsBlobStoreInstanceShouldNotCreate() throws Exception {
+        BlobStore blobStore = mock(BlobStore.class);
+        Map<String, Object> conf = Map.of(DaemonConfig.NIMBUS_MONITOR_FREQ_SECS, 10);
+        nimbus = new Nimbus(conf, iNimbus, stormClusterState, nimbusInfo, blobStore, leaderElector, groupMapper, metricRegistry);
+
+        nimbus.createStateInZookeeper(BLOB_FILE_KEY);
+
+        verify(stormClusterState, never()).setupBlob(eq(BLOB_FILE_KEY), eq(nimbusInfo), any());
+    }
+
+    @Test
+    void testCreateStateInZookeeperWhenFailToSetupBlobWithRuntimeExceptionThrowsRuntimeException() {
+        doThrow(new RuntimeException("Failed to setup blob")).when(stormClusterState).setupBlob(eq(BLOB_FILE_KEY), eq(nimbusInfo), any());
+
+        assertThrows(RuntimeException.class, () -> nimbus.createStateInZookeeper(BLOB_FILE_KEY));
+        verify(stormClusterState).setupBlob(eq(BLOB_FILE_KEY), eq(nimbusInfo), any());
+    }
+
+    @Test
+    void testCreateStateInZookeeperWhenKeyNotFoundHandlesException() throws Exception {
+        try (MockedConstruction<KeySequenceNumber> keySequenceNumber = mockConstruction(KeySequenceNumber.class, (mock, context) ->
+                when(mock.getKeySequenceNumber(any())).thenThrow(new KeyNotFoundException("Failed to setup blob")))) {
+            nimbus.createStateInZookeeper(BLOB_FILE_KEY);
+
+            verify(keySequenceNumber.constructed().get(0)).getKeySequenceNumber(any());
+            verify(stormClusterState, never()).setupBlob(eq(BLOB_FILE_KEY), eq(nimbusInfo), any());
+        }
+    }
 }