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Defaults don't work in "allow_unknown" schema. #310

fomars opened this issue Apr 19, 2017 · 2 comments


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commented Apr 19, 2017

Used Cerberus version / latest commit: Cerberus==1.1

Use-case abstract

When I use "allow_unknown" property and specify some default in that "unknown" schema and then try to normalize a config, I expect that default to be fulfilled in normalized config.

Support request / Bug report

>>> CORE_SCHEMA = {'version': {'type': 'string'}, 'meta': {'type': 'dict'}}
...     'type': 'dict',
...     'schema': {
...             'package': {'type': 'string'},
...             'cfg_path': {'type': 'string', 'default': 'cfg.yaml'}
... }
... }
>>> v = Validator(CORE_SCHEMA, allow_unknown=ALLOW_UNKNOWN_SCHEMA)
>>> CONFIG = {'version': '1.2.3', 'core': {}, 'plugin_foo': {'package': 'foo'}}
>>> v.normalized(CONFIG)
{'core': {}, 'version': '1.2.3', 'plugin_foo': {'package': 'foo'}}
>>> EXPECTED_RESULT = {'version': '1.2.3', 'core': {}, 'plugin_foo': {'package': 'foo', 'cfg_path': 'cfg.yaml'}}


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commented Aug 19, 2017

i pledge to mark this for the 1.2 milestone.

@nicolaiarocci nicolaiarocci added this to the 1.2 milestone Aug 20, 2017

@nicolaiarocci nicolaiarocci modified the milestones: 1.2, 1.3 Mar 26, 2018


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commented Jun 18, 2018

@fomars there's an inconsistency in your use-case as the core field isn't expected to have the defined default included. i'm removing that in the test case.

funkyfuture added a commit to funkyfuture/cerberus that referenced this issue Jun 18, 2018

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