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Re: Mock classes for JUnit Testing
Did you create the table using mockConn.tableOperations().create()?

On Tue, Sep 25, 2012 at 8:47 AM, Joe Berk <[EMAIL PROTECTED]> wrote:
> Hello,
>
>
>
> I am trying to write JUnit tests for Accumulo and I keep running into
> dead-ends with the “Mock” classes.
>
>
>
> /*
>
>   * So, the following lines are how I would traditionally establish an
> instance to perform Accumulo reads or writes
>
>   */
>
>
>
> Instance       zooInstance    = new ZooKeeperInstance( InstanceName,
> ZooServers);
>
> Connector      connector      = zooInstance.getConnector(UserName,
> PassWord);
>
>
>
>
>
>
>
> /*
>
>   * The following lines would be how I would perform a write to Accumulo
>
>   */
>
>
>
> BatchWriter batchWriter   = configuration.getBatchWriter();
>
> Mutation    videoMutation = new Mutation(new Text( RowId ));
>
>
>
> videoMutation.put(ColumnFamily, ColumnQualifer, Value );
>
>
>
> batchWriter.addMutation(videoMutation);
>
> batchWriter.flush();
>
> batchWriter.close();
>
>
>
>
>
>
>
> /*
>
>   * The following lines would be how I would perform a read from Accumulo
>
>   */
>
>
>
> Authorizations authorizations = new Authorizations();
>
> Scanner        scanner        = connector.createScanner(TableName,
> authorizations);
>
>
>
> scanner.setRange(new Range(RowId));
>
> scanner.fetchColumnFamily(columnFamily);
>
>
>
> Iterator<Entry<Key,Value>> iterator = scanner.iterator();
>
>
>
>
>
>
>
>
>
> So, I tried to repeat this process, but substituted:
>
>
>
> MockInstance instance = new MockInstance()
>
>                    Or
>
> Instance     instance = new MockInstance();
>
>
>
> and everything works great until I attempt to addMutation(videoMutation).
> That throws a NullPointerException.
>
>
>
> I’ve also tried to use the MockConnector & even MockBatchWriter classes, but
> have not had any success.
>
>
>
> I would really appreciate any help you could provide.
>
>
>
>
>
> Best Regards,
>
>
>
> Josh