TestPluginFunctions: ensure we call parent setUp() before using `conf…

[zas]

…ig.config`

setting = {'enabled_plugins': []}, persist = None, profiles = None

    @staticmethod
    def set_config_values(setting=None, persist=None, profiles=None):
        if setting:
            for key, value in setting.items():
>               config.config.setting[key] = value
E               AttributeError: 'NoneType' object has no attribute 'setting'

test/picardtestcase.py:110: AttributeError

Summary

• This is a…
  • Bug fix
  • Feature addition
  • Refactoring
  • Minor / simple change (like a typo)
  • Other
• Describe this change in 1-2 sentences:

Problem

• JIRA ticket (optional): PICARD-XXX

Solution

Action

Additional actions required:

• Update Picard documentation (please include a reference to this PR)
• Other (please specify below)

[phw]

LGTM