allmydata.test.cli.test_create_alias.CreateAlias.test_create is broken

[exarkun]

This test fails to return its Deferred so it never really runs. If the test is "fixed" to return the Deferred, it fails.

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[ERROR]
Traceback (most recent call last):
  File "/home/exarkun/Work/LeastAuthority/python/tahoe-lafs/src/allmydata/test/cli/test_create_alias.py", line 87, in _test_urls
    self._test_webopen([], self.welcome_url)
  File "/home/exarkun/Work/LeastAuthority/python/tahoe-lafs/src/allmydata/test/cli/test_create_alias.py", line 20, in _test_webopen
    rc = cli.webopen(o, urls.append)
  File "/home/exarkun/Work/LeastAuthority/python/tahoe-lafs/src/allmydata/scripts/cli.py", line 554, in webopen
    rc = tahoe_webopen.webopen(options, opener=opener)
  File "/home/exarkun/Work/LeastAuthority/python/tahoe-lafs/src/allmydata/scripts/tahoe_webopen.py", line 7, in webopen
    nodeurl = options['node-url']
exceptions.KeyError: 'node-url'

allmydata.test.cli.test_create_alias.CreateAlias.test_create
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[GitHub <noreply@…>]

In baa0a46/trunk:

Merge pull request #544 from tahoe-lafs/2967.alias-test_create

Fix CreateAlias?.test_create

This test didn't previously run completely due to a bug in the test itself.

Fixes: ticket:2967