Add two xfails related to Example 2 from RDF 1.1 TriG specification #1801
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The first xfail occurs during round tripping, TriG seems to be making some mistake when encoding blank nodes, as it is encoding that "Bob" knows someone who does not exist. This was reported by @gjhiggins in RDFLib#1796 (comment) The second xfail seems to be related to hextuple parsing, when comparing the hextuple parsed result of Example 2 with the TriG parsed graph of Example 2 the graphs are not isomorphic more than 70% of the time, but sometimes they are isomorphic. Inoticed this while adding the xfail for the issue @gjhiggins noticed. Other changes: - Added `simple_quad` to variants tests with HexTuple and TriG format. - Added an additional exact_match assert for variants which can be used to sidestep some of the known issues with isomorphic graph detection. This is useful for graphs with no BNodes. - Also added round-tripping for `variants/simple_quad.trig`. - Various changes to ensure determensitic ordering so that it is easier to compare things visually and so that tests always do the exact same thing in the exact same order.
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aucampia
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nicholascar and
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ghost
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Apr 12, 2022
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Summary of changes
The first xfail occurs during round tripping, TriG seems to be making
some mistake when encoding blank nodes, as it is encoding that "Bob"
knows someone who does not exist. This was reported by @gjhiggins in
#1796 (comment)
The second xfail seems to be related to hextuple parsing, when comparing
the hextuple parsed result of Example 2 with the TriG parsed
graph of Example 2 the graphs are not isomorphic more than 70% of the time, but
sometimes they are isomorphic. Inoticed this while adding the xfail for
the issue @gjhiggins noticed.
Other changes:
simple_quadto variants tests with HexTuple and TriG format.to sidestep some of the known issues with isomorphic graph detection.
This is useful for graphs with no BNodes.
variants/simple_quad.trig.to compare things visually and so that tests always do the exact same
thing in the exact same order.
Checklist
the same change.
so maintainers can fix minor issues and keep your PR up to date.