[HUDI-2931] Add config to disable table services (#4777)

hudi-client/hudi-client-common/src/test/java/org/apache/hudi/async/TestHoodieAsyncTableService.java

@@ -0,0 +1,58 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.hudi.async;
+
+import org.apache.hudi.common.util.collection.Pair;
+import org.apache.hudi.config.HoodieWriteConfig;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ExecutorService;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.mockito.Mockito.when;
+
+@ExtendWith(MockitoExtension.class)
+class TestHoodieAsyncTableService {
+
+  @Test
+  void tableServiceShouldNotStartIfDisabled(@Mock HoodieWriteConfig config) {
+    when(config.areTableServicesEnabled()).thenReturn(false);
+    HoodieAsyncTableService service = new DummyAsyncTableService(config);
+    service.start(null);
+    assertFalse(service.isStarted());
+  }
+
+  private static class DummyAsyncTableService extends HoodieAsyncTableService {
+
+    protected DummyAsyncTableService(HoodieWriteConfig writeConfig) {
+      super(writeConfig);
+    }
+
+    @Override
+    protected Pair<CompletableFuture, ExecutorService> startService() {
+      return null;
+    }
+  }
+}