comparison tests/test-rust-ancestor.py @ 41694:0c7b353ce100

rust-cpython: binding for headrevs()

This uses the core `dagops::retain_heads` to give a Rust implementation
to `mercurial.dagop.headrevs`.

Testing happens for now from `test-rust-ancestors.py`
(for quick and minimal change), but it'd made more sense to put the binary
index data elsewhere and to create a new test python module

41693:060c030c9993

    from mercurial.rustext.ancestor import (
        AncestorsIterator,
        LazyAncestors,
        MissingAncestors,
    )

try:
    from mercurial.cext import parsers as cparsers
except ImportError:
    cparsers = None

        # WdirUnsupported directly
        idx = self.parseindex()
        with self.assertRaises(error.WdirUnsupported):
            list(AncestorsIterator(idx, [node.wdirrev], -1, False))

if __name__ == '__main__':
    import silenttestrunner
    silenttestrunner.main(__name__)

41694:0c7b353ce100

    from mercurial.rustext.ancestor import (
        AncestorsIterator,
        LazyAncestors,
        MissingAncestors,
    )
    from mercurial.rustext import dagop

try:
    from mercurial.cext import parsers as cparsers
except ImportError:
    cparsers = None

        # WdirUnsupported directly
        idx = self.parseindex()
        with self.assertRaises(error.WdirUnsupported):
            list(AncestorsIterator(idx, [node.wdirrev], -1, False))

    def testheadrevs(self):
        idx = self.parseindex()
        self.assertEqual(dagop.headrevs(idx, [1, 2, 3]), {3})

if __name__ == '__main__':
    import silenttestrunner
    silenttestrunner.main(__name__)