Pádraig Brady b71fb3de89 fix importing of optional modules in auth_token
* keystone/middleware/auth_token.py: Catch the
correct exception so that the memcache and iso8601
modules can be optional as intended.
* tests/test_auth_token_middleware.py: Test
the ImportError path
* keystone/test.py: Add a new mixin class to
support disabling importing of a module.

Bug: 1003715
Change-Id: I87cc2f3bc79b17a52ea672bac7e0ebcf9e1fce57
2012-06-07 16:46:21 +01:00
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2012-05-24 16:21:09 +02:00
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