def apply_fixer_diff(original_diffs, fixer_diff, strategy_context):
"""Apply the relevant changes from fixer_diff
Using the original_diff and fixer_diff, find the intersecting
changes and delegate to the requested workflow strategy
to apply and commit the changes.
"""
if 'strategy' not in strategy_context:
raise ConfigurationError('Missing `workflow` configuration.')
strategy = strategy_context['strategy']
if strategy not in workflow_strategies:
raise ConfigurationError(u'Unknown workflow `{}`'.format(strategy))
try:
log.info('Using %s workflow to apply fixer changes', strategy)
workflow = workflow_strategies[strategy](strategy_context)
except Exception as e:
msg = u'Could not create {} workflow. Got {}'.format(strategy, e)
raise ConfigurationError(msg)
changes_to_apply = find_intersecting_diffs(original_diffs, fixer_diff)
if len(changes_to_apply) == 0:
log.info('No intersecting changes found. Skipping fixer workflow.')
return
workflow.execute(changes_to_apply)
def test_run_tools__fixer_errors(self):
error_message = 'A bad thing'
cases = (
WorkflowError(error_message),
ConfigurationError(error_message)
)
for case in cases:
yield self._test_run_tools_fixer_error_scenario, case
def test_run_tools_fixer_error_scenario(self):
errors = [
WorkflowError('A bad workflow thing'),
ConfigurationError('A bad configuration thing'),
]
for error in errors:
self.tool_stub.reset()
self.fixer_stub.reset()
self._test_run_tools_fixer_error_scenario(error)