openstack/deb-python-colander
Code Issues Proposed changes

Merge branch 'master' of https://github.com/Pylons/colander into length_msg

Browse Source 
Conflicts:
	CONTRIBUTORS.txt
This commit is contained in:
Nando Florestan
2015-02-04 10:26:28 -02:00
parent d9098dd133 3219f6e848
commit eb07f9d0c0
9 changed files with 127 additions and 10 deletions
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1
.travis.yml
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@@ -1,5 +1,6 @@
# Wire up travis
language: python
sudo: false
env:
- TOXENV=py26

11
CHANGES.rst
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@@ -54,6 +54,15 @@ Bug Fixes
- Updated translations: ``fr``, ``de``, ``ja``
Backwards Incompatibilities
~~~~~~~~~~~~~~~~~~~~~~~~~~~
- ``SchemaNode.deserialize`` will now raise an
``UnboundDeferredError`` if the node has an unbound deferred
validator. Previously, deferred validators were silently ignored.
See https://github.com/Pylons/colander/issues/47
1.0b1 (2013-09-01)
------------------
@@ -109,6 +118,8 @@ Features
- The ``typ`` of a ``SchemaNode`` can optionally be pased in as a keyword
argument. See https://github.com/Pylons/colander/issues/90
- Allow interpolation of `missing_msg` with properties `title` and `name`
1.0a5 (2013-05-31)
------------------

3
CONTRIBUTORS.txt
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@@ -117,7 +117,10 @@ Contributors
- Veeti Paananen, 2013/08/20
- Michael Howitz, 2013/12/05
- Alex Marandon, 2013/12/21
- Jaseem Abid, 2014/06/16
- Cédric Messiant, 2014/06/27
- Gouji Ochiai, 2014/08/21
- Tim Tisdall, 2014/09/10
- Nando Florestan, 2014-11-27
- Amos Latteier, 2014/11/30
- Jimmy Thrasibule, 2014/12/11

31
colander/__init__.py
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@@ -57,6 +57,13 @@ def interpolate(msgs):
else:
yield s
class UnboundDeferredError(Exception):
"""
An exception raised by :meth:`SchemaNode.deserialize` when an attempt
is made to deserialize a node which has an unbound :class:`deferred`
validator.
"""
class Invalid(Exception):
"""
An exception raised by data types and validators indicating that
@@ -286,6 +293,9 @@ class Regex(object):
error message to be used; otherwise, defaults to 'String does
not match expected pattern'.
The ``regex`` expression behaviour can be modified by specifying
any ``flags`` value taken by ``re.compile``.
The ``regex`` argument may also be a pattern object (the
result of ``re.compile``) instead of a string.
@@ -293,9 +303,9 @@ class Regex(object):
validation succeeds; otherwise, :exc:`colander.Invalid` is
raised with the ``msg`` error message.
"""
def __init__(self, regex, msg=None):
def __init__(self, regex, msg=None, flags=0):
if isinstance(regex, string_types):
self.match_object = re.compile(regex)
self.match_object = re.compile(regex, flags)
else:
self.match_object = regex
if msg is None:
@@ -483,6 +493,11 @@ URL_REGEX = r"""(?i)\b((?:[a-z][\w-]+:(?:/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9
url = Regex(URL_REGEX, _('Must be a URL'))
UUID_REGEX = r"""^(?:urn:uuid:)?\{?[a-f0-9]{8}(?:-?[a-f0-9]{4}){3}-?[a-f0-9]{12}\}?$"""
uuid = Regex(UUID_REGEX, _('Invalid UUID string'), re.IGNORECASE)
class SchemaType(object):
""" Base class for all schema types """
def flatten(self, node, appstruct, prefix='', listitem=False):
@@ -1837,7 +1852,7 @@ class _SchemaNode(object):
validator = None
default = null
missing = required
missing_msg = _('Required')
missing_msg = 'Required'
name = ''
raw_title = _marker
title = _marker
@@ -1980,14 +1995,20 @@ class _SchemaNode(object):
if appstruct is null:
appstruct = self.missing
if appstruct is required:
raise Invalid(self, self.missing_msg)
raise Invalid(self, _(self.missing_msg,
mapping={'title': self.title,
'name':self.name}))
if isinstance(appstruct, deferred): # unbound schema with deferreds
raise Invalid(self, self.missing_msg)
# We never deserialize or validate the missing value
return appstruct
if self.validator is not None:
if not isinstance(self.validator, deferred): # unbound
if isinstance(self.validator, deferred): # unbound
raise UnboundDeferredError(
"Schema node {node} has an unbound deferred validator"
.format(node=self))
self.validator(self, appstruct)
return appstruct

74
colander/tests/test_colander.py
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@@ -550,6 +550,57 @@ class Test_url_validator(unittest.TestCase):
from colander import Invalid
self.assertRaises(Invalid, self._callFUT, val)
class TestUUID(unittest.TestCase):
def _callFUT(self, val):
from colander import uuid
return uuid(None, val)
def test_success_hexadecimal(self):
val = '123e4567e89b12d3a456426655440000'
result = self._callFUT(val)
self.assertEqual(result, None)
def test_success_with_dashes(self):
val = '123e4567-e89b-12d3-a456-426655440000'
result = self._callFUT(val)
self.assertEqual(result, None)
def test_success_upper_case(self):
val = '123E4567-E89B-12D3-A456-426655440000'
result = self._callFUT(val)
self.assertEqual(result, None)
def test_success_with_braces(self):
val = '{123e4567-e89b-12d3-a456-426655440000}'
result = self._callFUT(val)
self.assertEqual(result, None)
def test_success_with_urn_ns(self):
val = 'urn:uuid:{123e4567-e89b-12d3-a456-426655440000}'
result = self._callFUT(val)
self.assertEqual(result, None)
def test_failure_random_string(self):
val = 'not-a-uuid'
from colander import Invalid
self.assertRaises(Invalid, self._callFUT, val)
def test_failure_not_hexadecimal(self):
val = '123zzzzz-uuuu-zzzz-uuuu-42665544zzzz'
from colander import Invalid
self.assertRaises(Invalid, self._callFUT, val)
def test_failure_invalid_length(self):
# Correct UUID: 8-4-4-4-12
val = '88888888-333-4444-333-cccccccccccc'
from colander import Invalid
self.assertRaises(Invalid, self._callFUT, val)
def test_failure_with_invalid_urn_ns(self):
val = 'urn:abcd:{123e4567-e89b-12d3-a456-426655440000}'
from colander import Invalid
self.assertRaises(Invalid, self._callFUT, val)
class TestSchemaType(unittest.TestCase):
def _makeOne(self, *arg, **kw):
from colander import SchemaType
@@ -1511,7 +1562,7 @@ class TestInteger(unittest.TestCase):
result = typ.serialize(node, val)
self.assertEqual(result, colander.null)
def test_serialize_emptystring(self):
def test_deserialize_emptystring(self):
import colander
val = ''
node = DummySchemaNode(None)
@@ -2474,6 +2525,19 @@ class TestSchemaNode(unittest.TestCase):
e = invalid_exc(node.deserialize, 1)
self.assertEqual(e.msg, 'Wrong')
def test_deserialize_with_unbound_validator(self):
from colander import Invalid
from colander import deferred
from colander import UnboundDeferredError
typ = DummyType()
def validator(node, kw):
def _validate(node, value):
node.raise_invalid('Invalid')
return _validate
node = self._makeOne(typ, validator=deferred(validator))
self.assertRaises(UnboundDeferredError, node.deserialize, None)
self.assertRaises(Invalid, node.bind(foo='foo').deserialize, None)
def test_deserialize_value_is_null_no_missing(self):
from colander import null
from colander import Invalid
@@ -2495,6 +2559,14 @@ class TestSchemaNode(unittest.TestCase):
e = invalid_exc(node.deserialize, null)
self.assertEqual(e.msg, 'Missing')
def test_deserialize_value_with_interpolated_missing_msg(self):
from colander import null
typ = DummyType()
node = self._makeOne(typ, missing_msg='Missing attribute ${title}',
name='name_a')
e = invalid_exc(node.deserialize, null)
self.assertEqual(e.msg.interpolate(), 'Missing attribute Name A')
def test_deserialize_noargs_uses_default(self):
typ = DummyType()
node = self._makeOne(typ)

8
docs/api.rst
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@@ -48,6 +48,9 @@ Exceptions
from a widget as the value which should be redisplayed when an
error is shown.
.. autoclass:: UnboundDeferredError
Validators
~~~~~~~~~~
@@ -75,6 +78,11 @@ Validators
A validator which ensures the value is a URL (via regex).
.. attribute:: uuid
A UUID hexadecimal string validator via regular expression
using :class:`colander.Regex`.
Types
~~~~~

3
docs/binding.rst
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@@ -248,7 +248,8 @@ If you use a schema with deferred ``validator``, ``missing`` or
``default`` attributes, but you use it to perform serialization and
deserialization without calling its ``bind`` method:
- If ``validator`` is deferred, no validation will be performed.
- If ``validator`` is deferred, :meth:`~colander.SchemaNode.deserialize` will
raise an :exc:`~colander.UnboundDeferredError`.
- If ``missing`` is deferred, the field will be considered *required*.

2
docs/changes.rst
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@@ -1 +1 @@
.. include:: ../CHANGES.txt
.. include:: ../CHANGES.rst

2
setup.py
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@@ -36,7 +36,7 @@ testing_extras = ['nose', 'coverage']
docs_extras = ['Sphinx']
setup(name='colander',
version='1.1dev',
version='1.1.dev0',
description=('A simple schema-based serialization and deserialization '
'library'),
long_description=README + '\n\n' + CHANGES,