[Bug 1316597] [NEW] test_smartos fails in a chroot

[Juerg Haefliger]

Public bug reported:

All tests from test_smartos.py fail in a chroot as follows (only first
failure shown):

$ nosetests tests/unittests/test_datasource/test_smartos.py
FFFFFFFFFFFFFFFFFFFFF
======================================================================
FAIL: test_b64_keys (tests.unittests.test_datasource.test_smartos.TestSmartOSDataSource)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/mocker.py", line 146, in test_method_wrapper
    result = test_method()
  File "/root/cloud-init/tests/unittests/test_datasource/test_smartos.py", line 270, in test_b64_keys
    self.assertTrue(ret)
AssertionError: False is not true
-------------------- >> begin captured logging << --------------------
cloudinit.importer: DEBUG: Looking for modules ['cloudinit.mergers.m_list'] that have attributes ['Merger']
cloudinit.importer: DEBUG: Found m_list with attributes ['Merger'] in ['cloudinit.mergers.m_list']
cloudinit.importer: DEBUG: Looking for modules ['cloudinit.mergers.m_dict'] that have attributes ['Merger']
cloudinit.importer: DEBUG: Found m_dict with attributes ['Merger'] in ['cloudinit.mergers.m_dict']
cloudinit.importer: DEBUG: Looking for modules ['cloudinit.mergers.m_str'] that have attributes ['Merger']
cloudinit.importer: DEBUG: Found m_str with attributes ['Merger'] in ['cloudinit.mergers.m_str']
cloudinit.mergers: DEBUG: Merging 'dict' into 'dict' using method '_handle_unknown' of 'LookupMerger: (3)'
cloudinit.mergers: DEBUG: Merging using located merger 'DictMerger: (method=no_replace,recurse_str=False,recurse_dict=True,recurse_array=False,allow_delete=False)' since it had method '_on_dict'
cloudinit.sources.DataSourceSmartOS: DEBUG: Host does not appear to be on SmartOS
--------------------- >> end captured logging << ---------------------

This is because DataSourceSmartOS.get_data() bails out if it can't find
the seed (/dev/ttyS1), which obviously doesn't exist in a pbuilder
chroot. The check for /dev/ttyS1 needs to be subbed out.

** Affects: cloud-init (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1316597

Title:
  test_smartos fails in a chroot

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