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https://issues.apache.org/jira/browse/LUCENE-3900?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13234446#comment-13234446
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Michael McCandless commented on LUCENE-3900:
--------------------------------------------
+1!
> Make BaseTokenStreamTestCase.checkRandomData more debuggable
> ------------------------------------------------------------
>
> Key: LUCENE-3900
> URL: https://issues.apache.org/jira/browse/LUCENE-3900
> Project: Lucene - Java
> Issue Type: Task
> Reporter: Robert Muir
>
> This thing has gotten meaner recently, but if it fails, it can be tough to
> debug.
> I feel like usually we just look at whatever analyzer failed, and completely
> review the code
> and look for any smells until it passes :)
> So I think instead we can possibly make this easier if this does something
> like:
> {code}
> try {
> ...checks...
> } catch (Throwable t) {
> BaseTokenException e = new BaseTokenException(randomInputUsed,
> randomParamter1, randomParameter2);
> e.setInitCause(t);
> throw e;
> }
> {code}
> Then you could have a useful exception with the input string that caused the
> fail,
> information about whether or not charfilter/mockreaderwrapper/whatever were
> used, etc,
> as well as the initial problem as root cause.
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