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https://issues.apache.org/jira/browse/LUCENE-7127?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Robert Muir updated LUCENE-7127:
--------------------------------
Attachment: LUCENE-7127.patch
Just adding one more print to the new distance test to make it more debuggable.
It shows a good fail like this which reproduces easily:
{noformat}
[junit4] Started J0 PID(21772@localhost).
[junit4] Suite: org.apache.lucene.spatial.geopoint.search.TestGeoPointQuery
[junit4] 1> center: (-2.6859204112252826,-126.5501794954457),
radius=1.933955591025525E7
[junit4] 1> 0: (-37.8248053137213,30.965997129678726),
distance=1.4967104936764924E7
[junit4] 1> 1: (-88.12955391593277,-49.35365941375494),
distance=9673775.807110526
[junit4] 1> 2: (64.47744741104543,-10.247774831950665),
distance=1.1518639744313335E7
[junit4] 1> 3: (-19.651501905173063,16.937049888074398),
distance=1.5335235632819101E7
[junit4] 1> 4: (38.89845754019916,163.5567674227059),
distance=8487195.64357184
[junit4] 1> 5: (-2.730920696631074,-125.4338058270514),
distance=124236.35394072857
[junit4] 1> 6: (-9.463954903185368,-119.37913874164224),
distance=1094829.0184535114
[junit4] 1> 7: (2.784616006538272,58.78787197172642),
distance=1.9443855071787946E7
[junit4] 1> 8: (-76.14117253571749,151.79019374772906),
distance=9506656.192332761
[junit4] 1> 9: (66.5075888670981,1.8173518404364586),
distance=1.1896270113358853E7
[junit4] 2> NOTE: reproduce with: ant test -Dtestcase=TestGeoPointQuery
-Dtests.method=testRandomDistance -Dtests.seed=BFDD43F3DB3D2FDC
-Dtests.locale=zh -Dtests.timezone=Pacific/Pago_Pago -Dtests.asserts=true
-Dtests.file.encoding=UTF-8
[junit4] FAILURE 12.2s | TestGeoPointQuery.testRandomDistance <<<
[junit4] > Throwable #1: java.lang.AssertionError: expected:<{0, 1, 2, 3,
4, 5, 6, 8, 9}> but was:<{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}>
{noformat}
So document 7 is really too far away, but gets wrongly included in the result.
I can probably debug it from here...
> remove epsilon-based testing from lucene/spatial
> ------------------------------------------------
>
> Key: LUCENE-7127
> URL: https://issues.apache.org/jira/browse/LUCENE-7127
> Project: Lucene - Core
> Issue Type: Test
> Reporter: Robert Muir
> Attachments: LUCENE-7127.patch, LUCENE-7127.patch, LUCENE-7127.patch
>
>
> Currently, the random tests here allow a TOLERANCE and will fail if the error
> exceeds. But this is not fun to debug! It also keeps the door wide open for
> bugs to creep in.
> Alternatively, we can rework the tests like we did for sandbox/ points. This
> means the test is aware of the index-time quantization and so it can demand
> exact answers.
> Its more difficult at first, because even floating point error can cause a
> failure. It requires us to maybe work through corner cases/rework
> optimizations. If any epsilons must be added, they can be added to the
> optimizations themselves (e.g. bounding box) instead of the user's result.
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