A set of tests on changes to substition-group behavior, constructed by hand, as a contribution to the XML Schema 1.1 test suite.

Revisions:

• 2010-06-10 : CMSMcQ : create this test catalog, using XHTML modularization driver.

In section G.1.3 Changes to content models, XSD 1.1 says (in list item 3):

Finally, the keyword ##definedSibling can be used to exclude all elements explicitly mentioned in a content model (and all elements substitutable for those elements).

So we test the following interactions of definedSibling and substitution groups, in schemas with some subset of elements e, s, n, s1, n1, s2, n2, with s1 substitutable ('s') for s, and s2 for s1, but n1 and n2 not substitutable for n (or anything else). Elements n and s are siblings, together with a negative wildcard (no positive wildcard is possible) which has the keyword #definedSibling.

1. A negative wildcard excludes s1 but not n1.
2. A negative wildcard competes with n but not s.

10 June 2010.