Spurious test failure: test_details_output_expands

[Jeroen T. Vermeulen]

Test failure:

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FAIL: maasserver.views.tests.test_nodes.NodeProbedDetailsExpanderTest.test_details_output_expands
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_StringException: Traceback (most recent call last):
  File "/tmp/tarmac/branch.DBfS_N/src/maasserver/views/tests/test_nodes.py", line 1725, in test_details_output_expands
    "Show discovered details", self.find_button_link().text)
  File "/usr/lib/python2.7/dist-packages/testtools/testcase.py", line 321, in assertEqual
    self.assertThat(observed, matcher, message)
  File "/usr/lib/python2.7/dist-packages/testtools/testcase.py", line 406, in assertThat
    raise mismatch_error
MismatchError: u'Show discovered details' != u''

-------------------- >> begin captured logging << --------------------
maasserver: ERROR: Unable to get RPC connection for cluster 'master' (master)
maasserver: ERROR: Unable to get RPC connection for cluster 'master' (master)
maasserver: ERROR: Unable to get RPC connection for cluster 'cluster-jp7rFE' (8d3387c8-4ece-11e4-972a-fa163e3ef03d)
maasserver: ERROR: Unable to get RPC connection for cluster 'master' (master)
maasserver: ERROR: Unable to get RPC connection for cluster 'cluster-jp7rFE' (8d3387c8-4ece-11e4-972a-fa163e3ef03d)
maasserver: ERROR: Unable to get RPC connection for cluster 'master' (master)
maasserver: ERROR: Unable to get RPC connection for cluster 'cluster-jp7rFE' (8d3387c8-4ece-11e4-972a-fa163e3ef03d)
--------------------- >> end captured logging << ---------------------
»