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In the Microsoft "schema" test set, <test group="schD8" name="schD8"/> the schema contains <include schemaLocation="file://"/> The schema is described as valid, on the basis that failure to resolve the schemaLocation is not intrinsically an error. However, I believe that file:// is an invalid xs:anyURI value, and that this schema therefore violates the schema-for-schemas. The clause saying that failure to resolve the URI is not an error does not license the use of an invalid URI.
Agreed that this test outcome should be invalid. We are following up with the WG to determine the process of updating the test suite.
I'm not sure whether this test makes sense, given that URI-checking is not required. . . I would argue we should remove the test, not change the outcome to invalid
Actually, another case for the mooted 'implDep' marking
WG decided that the existing URI is invalid, and that we replace it with a valid URI that doesn't resolve. As such, this test would be valid for either 1.0 or 1.1.