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https://issues.apache.org/jira/browse/PDFBOX-1977?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13932248#comment-13932248
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John Hewson commented on PDFBOX-1977:
-------------------------------------
{quote}
I like the name "fuzz test"!
{quote}
Yes it's fun, [Wikipedia|http://en.wikipedia.org/wiki/Fuzz_testing] has an
article explaining the origin of the name.
{quote}
+1, we definitely need both. Whenever a bug is hit it's best to make a very
specific non-randomized test case showing the bug, fix the bug, and then see
that the test passes.
{quote}
Lets do that.
> LZWFilter fails / TestFilters is non-determinate
> ------------------------------------------------
>
> Key: PDFBOX-1977
> URL: https://issues.apache.org/jira/browse/PDFBOX-1977
> Project: PDFBox
> Issue Type: Bug
> Affects Versions: 1.8.5, 2.0.0
> Reporter: John Hewson
> Assignee: Tilman Hausherr
> Labels: LZW
> Fix For: 1.8.5, 2.0.0
>
>
> TestFilters uses Random().nextLong() to generate a seed for random data,
> which means that it is non-determinate. Depending on the seed value, the test
> may fail or succeed.
> Using the following seed results in the LZW filter failing:
> final long seed = -6257105096642706464L;
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