[jira] [Updated] (COMMONSRDF-55) Stream of Jena quads use wrong IRI for default graph

["Sergio Fernández (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/COMMONSRDF-55?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sergio Fernández updated COMMONSRDF-55:
---------------------------------------
    Fix Version/s:     (was: 1.0.0)
                   0.4.0

> Stream of Jena quads use wrong IRI for default graph
> ----------------------------------------------------
>
>                 Key: COMMONSRDF-55
>                 URL: https://issues.apache.org/jira/browse/COMMONSRDF-55
>             Project: Apache Commons RDF
>          Issue Type: Bug
>          Components: jena
>    Affects Versions: 0.3.0
>            Reporter: Stian Soiland-Reyes
>            Assignee: Stian Soiland-Reyes
>             Fix For: 0.4.0
>
>
> See https://travis-ci.org/apache/commons-rdf/builds/195548479
> {code}
> org.apache.commons.rdf.jena.DatasetJenaTest
> streamLanguageTagsCaseInsensitive(org.apache.commons.rdf.jena.DatasetJenaTest)  Time elapsed: 0.012 sec  <<< FAILURE!
> java.lang.AssertionError: expected:<<http://example.com/s1> <http://example.com/greeting> "Hello"@EN-GB <urn:x-arq:DefaultGraph>.> but was:<<http://example.com/s1> <http://example.com/greeting> "Hello"@en-GB .>
> {code}
> Jena uses the IRI `<urn:x-arq:DefaultGraph>` internally to represent the default graph within datasets - we need to recognize that on the way out of a `JenaDatasetImpl.stream()` and possibly in the `asQuad(JenaQuad)` converter and replace it with `Optional.empty()` so the default graph appears the same across implementations.
> The `AbstractDatasetTest`  should be augmented to do more tests on the default graph, including `.stream()`, `.iterate()`, `.contains()` and `.remove()`1.



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