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Viewing changes to bzrlib/tests/test_transport.py

  • Committer: Martin Pool
  • Date: 2006-02-10 09:04:35 UTC
  • mto: This revision was merged to the branch mainline in revision 1611.
  • Revision ID: mbp@sourcefrog.net-20060210090435-a53447137885cb1f
Some support for falling back between transport implementations.

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bzrlib/tests/test_transport.py
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from cStringIO import StringIO
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from bzrlib.errors import (NoSuchFile, FileExists,
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                           TransportNotPossible, ConnectionError)
 
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                           TransportNotPossible,
 
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                           ConnectionError,
 
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                           DependencyNotPresent,
 
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                           )
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from bzrlib.tests import TestCase
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from bzrlib.transport import (_get_protocol_handlers,
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                              _get_transport_modules,
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                              register_lazy_transport,
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                              _set_protocol_handlers,
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                              urlescape,
 
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                              Transport,
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                              )
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from bzrlib.transport.memory import MemoryTransport
 
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from bzrlib.transport.local import LocalTransport
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class TestTransport(TestCase):
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                             _get_transport_modules())
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        finally:
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            _set_protocol_handlers(handlers)
 
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    def test_transport_dependency(self):
 
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        """Transport with missing dependency causes no error"""
 
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        saved_handlers = _get_protocol_handlers()
 
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        try:
 
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            register_lazy_transport('foo', 'bzrlib.tests.test_transport',
 
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                    'BadTransportHandler')
 
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            t = get_transport('foo://fooserver/foo')
 
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            # because we failed to load the transport
 
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            self.assertTrue(isinstance(t, LocalTransport))
 
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        finally:
 
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            _set_protocol_handlers(saved_handlers)
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class TestMemoryTransport(TestCase):
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            self.assertEqual(True, transport.is_readonly())
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        finally:
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            server.tearDown()
 
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class BadTransportHandler(Transport):
 
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    def __init__(self, base_url):
 
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        raise DependencyNotPresent('some_lib', 'testing missing dependency')
 
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class BackupTransportHandler(Transport):
 
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    """Test transport that works as a backup for the BadTransportHandler"""