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https://issues.apache.org/jira/browse/LUCENE-8281?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16454866#comment-16454866
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Karl Wright commented on LUCENE-8281:
-------------------------------------
I added a reverse assertion to the code which cross-checks the second test
point against the first after its in-set-ness has been determined. This
assertion fails pretty regularly. With the assertion in place, you can blow it
up with the following already-existing test:
{code}
ant test -Dtestcase=GeoPolygonTest -Dtests.method=testLUCENE8276_case1
{code}
The assertion code is pretty straightforward:
{code}
assert isInSet(testPoint1.x, testPoint1.y, testPoint1.z,
testPoint2,
testPoint2InSet,
testPoint2FixedXPlane, testPoint2FixedXAbovePlane,
testPoint2FixedXBelowPlane,
testPoint2FixedYPlane, testPoint2FixedYAbovePlane,
testPoint2FixedYBelowPlane,
testPoint2FixedZPlane, testPoint2FixedZAbovePlane,
testPoint2FixedZBelowPlane) == testPoint1InSet : "Test point1 not correctly
in/out of set according to test point2";
{code}
Debugging now to figure out why this doesn't reliably work.
> Random polygon test failures
> ----------------------------
>
> Key: LUCENE-8281
> URL: https://issues.apache.org/jira/browse/LUCENE-8281
> Project: Lucene - Core
> Issue Type: Bug
> Components: modules/spatial3d
> Reporter: Karl Wright
> Assignee: Karl Wright
> Priority: Major
> Attachments: LUCENE-8281.jpg
>
>
> Reproduce here:
> {code}
> ant test -Dtestcase=RandomGeoPolygonTest
> -Dtests.method=testCompareSmallPolygons -Dtests.seed=42573983280EE568
> -Dtests.multiplier=3 -Dtests.slow=true -Dtests.locale=jmc-TZ
> -Dtests.timezone=US/Alaska -Dtests.asserts=true -Dtests.file.encoding=US-ASCII
> {code}
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