BIND 10 #1678: Lettuce test for multiple instances

[BIND 10 Development]

#1678: Lettuce test for multiple instances
-------------------------------------+-------------------------------------
                   Reporter:         |                 Owner:  jinmei
  vorner                             |                Status:  reviewing
                       Type:         |             Milestone:
  enhancement                        |  Sprint-20120306
                   Priority:  major  |            Resolution:
                  Component:         |             Sensitive:  0
  Unclassified                       |           Sub-Project:  Core
                   Keywords:         |  Estimated Difficulty:  8
            Defect Severity:  N/A    |           Total Hours:  2
Feature Depending on Ticket:         |
  Multiple interfaces                |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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Comment (by jinmei):

 First, it didn't work for me:

 {{{
     If I remember the pid of process b10-auth
 # features/terrain/bind10_control.py:189
     Traceback (most recent call last):
       File "/Library/Python/2.7/site-packages/lettuce/core.py", line 117,
 in __call__
         ret = self.function(self.step, *args, **kw)
       File
 "/Users/jinmei/src/isc/git/bind10-1678/tests/lettuce/features/terrain/bind10_control.py",
 line 201, in remember_pid
         running_processes = parse_bindctl_output_as_data_structure()
       File
 "/Users/jinmei/src/isc/git/bind10-1678/tests/lettuce/features/terrain/bind10_control.py",
 line 186, in parse_bindctl_output_as_data_structure
         "parseable data structure: " + str(ve)
 AssertionError: Last bindctl output does not appear to be a parseable data
 structure: Extra data: line 29 column 1 - line 29 column 9 (char 302 -
 310)
 }}}

 In my environment there seems to be some other extra garbage in the
 output.  The attached patch worked for me.

 Second, I made a usual editorial cleanup.

 Third, remember_pid() and check_pid() look quite similar and could use
 a shared helper function to avoid code duplicate.

 Other than that it looks okay.

 (The commented-out test failed for me, but I agree it's better than
 nothing.)

-- 
Ticket URL: <http://bind10.isc.org/ticket/1678#comment:5>
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