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from pytest import raises
from wtforms import (
BooleanField,
Field,
FieldList,
Form,
FormField,
IntegerField,
SelectMultipleField,
StringField,
)
from wtforms_json import flatten_json, InvalidData
class TestJsonDecoder(object):
def test_raises_error_if_given_data_not_dict_like(self):
class MyForm(Form):
pass
with raises(InvalidData):
flatten_json(MyForm, [])
def test_unknown_attribute(self):
class MyForm(Form):
a = BooleanField()
flatten_json(MyForm, {'b': 123})
def test_unknown_attribute_without_skip_unknown_keys(self):
class MyForm(Form):
a = BooleanField()
with raises(InvalidData):
flatten_json(MyForm, {'b': 123}, skip_unknown_keys=False)
def test_sharing_class_property(self):
""" When an unknown attribute has the same name as a property on
the Form class, the attribute is mistakenly seen as known because
getattr can retrieve the property, but when property.field_class
is accessed an error is raised. This tests that the error is not
raised when skip_unknown_keys is True.
"""
class MyForm(Form):
a = BooleanField()
flatten_json(MyForm, {'data': 13})
def test_sharing_class_property_without_skip_unknown_keys(self):
""" When an unknown attribute has the same name as a property on
the Form class, the attribute is mistakenly seen as known because
getattr can retrieve the property, but when property.field_class
is accessed an error is raised. This tests that the error IS
raised when skip_unknown_keys is False.
"""
class MyForm(Form):
a = BooleanField()
with raises(InvalidData):
flatten_json(MyForm, {'data': 123}, skip_unknown_keys=False)
def test_supports_dicts(self):
class MyForm(Form):
a = BooleanField()
b = IntegerField()
assert (
flatten_json(MyForm, {'a': False, 'b': 123}) ==
{'a': False, 'b': 123}
)
def test_supports_select_multiple_field_decoding(self):
class MyForm(Form):
a = SelectMultipleField()
assert flatten_json(MyForm, {'a': [1, 2, 3]}) == {'a': [1, 2, 3]}
def test_supports_field_list_decoding(self):
class MyForm(Form):
a = FieldList(StringField())
assert flatten_json(MyForm, {'a': [1, 2, 3]}) == {
'a-0': 1,
'a-1': 2,
'a-2': 3
}
def test_supports_nested_dicts_and_lists(self):
class OtherForm(Form):
b = BooleanField()
class MyForm(Form):
a = FieldList(FormField(OtherForm))
data = {
'a': [{'b': True}]
}
assert flatten_json(MyForm, data) == {'a-0-b': True}
def test_flatten_dict(self):
class DeeplyNestedForm(Form):
c = StringField()
class NestedForm(Form):
b = FormField(DeeplyNestedForm)
class MyForm(Form):
a = FormField(NestedForm)
assert flatten_json(MyForm, {'a': {'b': {'c': 'd'}}}) == {
'a-b-c': 'd'
}
def test_only_flatten_on_form_field(self):
class DictField(Field):
def process_formdata(self, valuelist):
if valuelist:
data = valuelist[0]
if isinstance(data, dict):
self.data = data
else:
raise 'Unsupported datatype'
else:
self.data = {}
class MyForm(Form):
a = IntegerField()
b = DictField()
assert (
flatten_json(MyForm, {'a': False, 'b': {'key': 'value'}}) ==
{'a': False, 'b': {'key': 'value'}}
)
def test_flatten_formfield_inheritance(self):
class NestedForm(Form):
b = StringField()
class SpecialField(FormField):
def __init__(self, *args, **kwargs):
super(SpecialField, self).__init__(NestedForm, *args, **kwargs)
class MyForm(Form):
a = SpecialField()
assert flatten_json(MyForm, {'a': {'b': 'c'}}) == {
'a-b': 'c'
}
def test_flatten_listfield_inheritance(self):
class SpecialField(FieldList):
def __init__(self, *args, **kwargs):
super(SpecialField, self).__init__(
StringField(),
*args,
**kwargs
)
class MyForm(Form):
a = SpecialField()
assert flatten_json(MyForm, {'a': [1, 2, 3]}) == {
'a-0': 1,
'a-1': 2,
'a-2': 3
}
def test_flatten_nested_listfield_and_formfield_inheritance(self):
class NestedForm(Form):
b = StringField()
class SpecialNestedField(FormField):
def __init__(self, *args, **kwargs):
super(SpecialNestedField, self).__init__(
NestedForm,
*args,
**kwargs
)
class SpecialField(FieldList):
def __init__(self, *args, **kwargs):
super(SpecialField, self).__init__(
SpecialNestedField(),
*args,
**kwargs
)
class MyForm(Form):
a = SpecialField()
assert flatten_json(MyForm, {'a': [{'b': 1}, {'b': 2}, {'b': 3}]}) == {
'a-0-b': 1,
'a-1-b': 2,
'a-2-b': 3
}
|
