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Accumulo, mail # user - Mock classes for JUnit Testing


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Joe Berk 2012-09-25, 12:47
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Keith Turner 2012-09-25, 12:54
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Joe Berk 2012-09-25, 13:29
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Adam Fuchs 2012-09-25, 13:46
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Re: Mock classes for JUnit Testing
Joe Berk 2012-09-25, 13:53
Adam,

Thank you for the reply. I'll inspect what jars I could be missing & try
this again.

Thanks,

Josh

On Tue, Sep 25, 2012 at 9:46 AM, Adam Fuchs <[EMAIL PROTECTED]> wrote:

> Josh,
>
> This is a classpath problem. The JVM is failing to load the
> MockTableOperations class because it has an include line that references
> that NotImplementedException class. Try adding all of the jars from
> Accumulo's lib directory to your classpath.
>
> Adam
> On Sep 25, 2012 9:30 AM, "Joe Berk" <[EMAIL PROTECTED]> wrote:
>
>> Thanks for responding, Keith.
>>
>> When I execute the following lines:
>>
>>
>> MockInstance    instance  = new MockInstance();
>> MockConnector connector = (MockConnector) instance.getConnector(*UserName
>> *, *Password*);
>> connector.tableOperations().create("SomeTable");
>>
>> I get a "caused by: java.lang.ClassNotFoundException:
>> org/apache/commons/lang/NotImplementedException"
>>
>> & it throws the Exception on the 3rd line there:
>> connector.tableOperations().create("SomeTable");
>>
>> Best Regards,
>>
>> Josh
>>
>>
>>
>>
>> On Tue, Sep 25, 2012 at 8:54 AM, Keith Turner <[EMAIL PROTECTED]> wrote:
>>
>>> 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
>>>
>>
>>
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Keith Turner 2012-09-25, 13:55
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Adam Fuchs 2012-09-25, 14:03
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Keith Turner 2012-09-25, 14:07
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John Armstrong 2012-09-25, 14:12
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Joe Berk 2012-09-25, 14:17
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Jim Klucar 2012-09-25, 14:17
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Keith Turner 2012-09-25, 14:20
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Joe Berk 2012-09-25, 14:22
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Billie Rinaldi 2012-09-25, 15:04
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Adam Fuchs 2012-09-25, 13:16