[Buildbot] #2872: No error is reported when suppressionFile does not exist

[Buildbot trac]

#2872: No error is reported when suppressionFile does not exist
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Reporter:  wentasah  |       Owner:  MikeLing
    Type:  defect    |      Status:  assigned
Priority:  minor     |   Milestone:  0.8.x
 Version:            |  Resolution:
Keywords:  simple    |
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Comment (by MikeLing):

 How could I test the values of stderr and rc which in
 https://github.com/buildbot/buildbot/blob/6b883c118c37709835bfb37e69af4990796843fe/slave/buildslave/commands/transfer.py#L96-L97
 for testing WarningCountingShellCommand.

 BTW, could I create a PR and ask question on there? Anyway, I had add a
 patch file for it :)

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Ticket URL: <http://trac.buildbot.net/ticket/2872#comment:7>
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