tests/silenttestrunner.py

rebase: fix working copy location after a --collapse (issue4080)

Rebasing with --collapse would leave the working copy on the parent of the
collapsed commit, instead of on the collapsed commit.  This fixes that.  Also
fixes a few tests that already covered this area but had bad data.

This also fixes issue3716 where bookmarks are not kept across rebases with
--collapse. I updated the test to cover that case as well.

import unittest, sys

def main(modulename):
    '''run the tests found in module, printing nothing when all tests pass'''
    module = sys.modules[modulename]
    suite = unittest.defaultTestLoader.loadTestsFromModule(module)
    results = unittest.TestResult()
    suite.run(results)
    if results.errors or results.failures:
        for tc, exc in results.errors:
            print 'ERROR:', tc
            print
            sys.stdout.write(exc)
        for tc, exc in results.failures:
            print 'FAIL:', tc
            print
            sys.stdout.write(exc)
        sys.exit(1)