[HIVE-20916] Fix typo in JSONCreateDatabaseMessage and add test for alter database

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 4.0.0
• Fix Version/s: 3.2.0, 4.0.0-alpha-1
• Component/s: Standalone Metastore
• Assignee: Vihang Karajgaonkar
• Reporter: Vihang Karajgaonkar
• Created: 14/Nov/18 19:33
• Updated: 17/Nov/22 08:54
• Resolved: 16/Nov/18 22:38

Description

public JSONCreateDatabaseMessage(String server, String servicePrincipal, Database db,
      Long timestamp) {
    this.server = server;
    this.servicePrincipal = servicePrincipal;
    this.db = db.getName();
    this.timestamp = timestamp;
    try {
      this.dbJson = MessageBuilder.createDatabaseObjJson(db);
    } catch (TException ex) {
      throw new IllegalArgumentException("Could not serialize Function object", ex);
    }
    checkValid();
  }

The exception message should say Database instead of Function. Also, the TestDbNotificationListener#createDatabase should be modified to make sure that the deserialized database object from the dbJson field matches with the original database object