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#
# Print data structure diff on assertion failure.
#
# assert_equal: left=some.result right={1:2}
#
__metaclass__ = type
import inspect
import unittest2
import ansible.template
from ansible.errors import AnsibleError
from ansible.plugins.action import ActionBase
from ansible.module_utils.six import string_types
TEMPLATE_KWARGS = {}
_argspec = inspect.getargspec(ansible.template.Templar.template)
if 'bare_deprecated' in _argspec.args:
TEMPLATE_KWARGS['bare_deprecated'] = False
class TestCase(unittest2.TestCase):
def runTest(self):
pass
def text_diff(a, b):
tc = TestCase()
tc.maxDiff = None
try:
tc.assertEqual(a, b)
return None
except AssertionError as e:
return str(e)
class ActionModule(ActionBase):
''' Fail with custom message '''
TRANSFERS_FILES = False
_VALID_ARGS = frozenset(('left', 'right'))
def template(self, obj):
return self._templar.template(
obj,
convert_bare=True,
**TEMPLATE_KWARGS
)
def run(self, tmp=None, task_vars=None):
result = super(ActionModule, self).run(tmp, task_vars or {})
left = self.template(self._task.args['left'])
right = self.template(self._task.args['right'])
diff = text_diff(left, right)
if diff is None:
return {
'changed': False
}
return {
'changed': False,
'failed': True,
'msg': diff,
'_ansible_verbose_always': True,
}
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