tests/test-hg-parseurl.py

convert: don't drop commits that are empty in the source when using --filemap

I ran into this when using `hg lfconvert --to-normal` (which uses the filemap
class internally), and saw that commits with nothing but a branch change were
dropped.  We could put in an option that only lfconvert uses internally.  But
silently dropping anything other than a commit where all changes were excluded
seems unintended.  For example, there's a message in mercurial_sink.putcommit()
if it drops an empty commit.  (And the reason that isn't kicking in here is
because lfconvert isn't passing --filemap, so the self.filemapmode conditional
there is always False.)

The naive change of `return not files` broke test-convert-filemap.t, so this is
a little more elaborate than needed for converting from largefiles.

from __future__ import absolute_import, print_function

import unittest

from mercurial import (
    hg,
)

class ParseRequestTests(unittest.TestCase):
    def testparse(self):

        self.assertEqual(hg.parseurl(b'http://example.com/no/anchor'),
                         (b'http://example.com/no/anchor', (None, [])))
        self.assertEqual(hg.parseurl(b'http://example.com/an/anchor#foo'),
                         (b'http://example.com/an/anchor', (b'foo', [])))
        self.assertEqual(
            hg.parseurl(b'http://example.com/no/anchor/branches', [b'foo']),
            (b'http://example.com/no/anchor/branches', (None, [b'foo'])))
        self.assertEqual(
            hg.parseurl(b'http://example.com/an/anchor/branches#bar', [b'foo']),
            (b'http://example.com/an/anchor/branches', (b'bar', [b'foo'])))
        self.assertEqual(hg.parseurl(
            b'http://example.com/an/anchor/branches-None#foo', None),
            (b'http://example.com/an/anchor/branches-None', (b'foo', [])))
        self.assertEqual(hg.parseurl(b'http://example.com/'),
                         (b'http://example.com/', (None, [])))
        self.assertEqual(hg.parseurl(b'http://example.com'),
                         (b'http://example.com/', (None, [])))
        self.assertEqual(hg.parseurl(b'http://example.com#foo'),
                         (b'http://example.com/', (b'foo', [])))

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