[HUDI-394] Provide a basic implementation of test suite

hudi-hive-sync/src/main/java/org/apache/hudi/hive/HiveSyncTool.java

@@ -112,6 +112,15 @@ public class HiveSyncTool {
         + " of type " + hoodieHiveClient.getTableType());
     // Check if the necessary table exists
     boolean tableExists = hoodieHiveClient.doesTableExist(tableName);
+
+    // check if the database exists else create it
+    try {
+      hoodieHiveClient.updateHiveSQL("create database if not exists " + cfg.databaseName);
+    } catch (Exception e) {
+      // this is harmless since table creation will fail anyways, creation of DB is needed for in-memory testing
+      LOG.warn("Unable to create database", e);
+    }
+
     // Get the parquet schema for this table looking at the latest commit
     MessageType schema = hoodieHiveClient.getDataSchema();
     // Sync schema if needed

hudi-hive-sync/src/main/java/org/apache/hudi/hive/HoodieHiveClient.java

@@ -572,4 +572,8 @@ public class HoodieHiveClient {
       return new PartitionEvent(PartitionEventType.UPDATE, storagePartition);
     }
   }
+
+  public IMetaStoreClient getClient() {
+    return client;
+  }
 }

hudi-hive-sync/src/test/java/org/apache/hudi/hive/testutils/HiveTestService.java

@@ -126,10 +126,21 @@ public class HiveTestService {
   public void stop() {
     resetSystemProperties();
     if (tServer != null) {
-      tServer.stop();
+      try {
+        tServer.stop();
+      } catch (Exception e) {
+        LOG.error("Stop meta store failed", e);
+      }
     }
     if (hiveServer != null) {
-      hiveServer.stop();
+      try {
+        hiveServer.stop();
+      } catch (Exception e) {
+        LOG.error("Stop hive server failed", e);
+      }
+    }
+    if (executorService != null) {
+      executorService.shutdownNow();
     }
     LOG.info("Hive Minicluster service shut down.");
     tServer = null;