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from __future__ import unicode_literals
from unittest import TestCase
from wtforms.form import BaseForm, Form
from wtforms.meta import DefaultMeta
from wtforms.fields import TextField, IntegerField
from wtforms.validators import ValidationError
from tests.common import DummyPostData
class BaseFormTest(TestCase):
def get_form(self, **kwargs):
def validate_test(form, field):
if field.data != 'foobar':
raise ValidationError('error')
return BaseForm({'test': TextField(validators=[validate_test])}, **kwargs)
def test_data_proxy(self):
form = self.get_form()
form.process(test='foo')
self.assertEqual(form.data, {'test': 'foo'})
def test_errors_proxy(self):
form = self.get_form()
form.process(test='foobar')
form.validate()
self.assertEqual(form.errors, {})
form = self.get_form()
form.process()
form.validate()
self.assertEqual(form.errors, {'test': ['error']})
def test_contains(self):
form = self.get_form()
self.assertTrue('test' in form)
self.assertTrue('abcd' not in form)
def test_field_removal(self):
form = self.get_form()
del form['test']
self.assertRaises(AttributeError, getattr, form, 'test')
self.assertTrue('test' not in form)
def test_field_adding(self):
form = self.get_form()
self.assertEqual(len(list(form)), 1)
form['foo'] = TextField()
self.assertEqual(len(list(form)), 2)
form.process(DummyPostData(foo=['hello']))
self.assertEqual(form['foo'].data, 'hello')
form['test'] = IntegerField()
self.assertTrue(isinstance(form['test'], IntegerField))
self.assertEqual(len(list(form)), 2)
self.assertRaises(AttributeError, getattr, form['test'], 'data')
form.process(DummyPostData(test=['1']))
self.assertEqual(form['test'].data, 1)
self.assertEqual(form['foo'].data, '')
def test_populate_obj(self):
m = type(str('Model'), (object, ), {})
form = self.get_form()
form.process(test='foobar')
form.populate_obj(m)
self.assertEqual(m.test, 'foobar')
self.assertEqual([k for k in dir(m) if not k.startswith('_')], ['test'])
def test_prefixes(self):
form = self.get_form(prefix='foo')
self.assertEqual(form['test'].name, 'foo-test')
self.assertEqual(form['test'].short_name, 'test')
self.assertEqual(form['test'].id, 'foo-test')
form = self.get_form(prefix='foo.')
form.process(DummyPostData({'foo.test': ['hello'], 'test': ['bye']}))
self.assertEqual(form['test'].data, 'hello')
self.assertEqual(self.get_form(prefix='foo[')['test'].name, 'foo[-test')
def test_formdata_wrapper_error(self):
form = self.get_form()
self.assertRaises(TypeError, form.process, [])
class FormMetaTest(TestCase):
def test_monkeypatch(self):
class F(Form):
a = TextField()
self.assertEqual(F._unbound_fields, None)
F()
self.assertEqual(F._unbound_fields, [('a', F.a)])
F.b = TextField()
self.assertEqual(F._unbound_fields, None)
F()
self.assertEqual(F._unbound_fields, [('a', F.a), ('b', F.b)])
del F.a
self.assertRaises(AttributeError, lambda: F.a)
F()
self.assertEqual(F._unbound_fields, [('b', F.b)])
F._m = TextField()
self.assertEqual(F._unbound_fields, [('b', F.b)])
def test_subclassing(self):
class A(Form):
a = TextField()
c = TextField()
class B(A):
b = TextField()
c = TextField()
A()
B()
self.assertTrue(A.a is B.a)
self.assertTrue(A.c is not B.c)
self.assertEqual(A._unbound_fields, [('a', A.a), ('c', A.c)])
self.assertEqual(B._unbound_fields, [('a', B.a), ('b', B.b), ('c', B.c)])
def test_class_meta_reassign(self):
class MetaA:
pass
class MetaB:
pass
class F(Form):
Meta = MetaA
self.assertEqual(F._wtforms_meta, None)
assert isinstance(F().meta, MetaA)
assert issubclass(F._wtforms_meta, MetaA)
F.Meta = MetaB
self.assertEqual(F._wtforms_meta, None)
assert isinstance(F().meta, MetaB)
assert issubclass(F._wtforms_meta, MetaB)
class FormTest(TestCase):
class F(Form):
test = TextField()
def validate_test(form, field):
if field.data != 'foobar':
raise ValidationError('error')
def test_validate(self):
form = self.F(test='foobar')
self.assertEqual(form.validate(), True)
form = self.F()
self.assertEqual(form.validate(), False)
def test_field_adding_disabled(self):
form = self.F()
self.assertRaises(TypeError, form.__setitem__, 'foo', TextField())
def test_field_removal(self):
form = self.F()
del form.test
self.assertTrue('test' not in form)
self.assertEqual(form.test, None)
self.assertEqual(len(list(form)), 0)
# Try deleting a nonexistent field
self.assertRaises(AttributeError, form.__delattr__, 'fake')
def test_delattr_idempotency(self):
form = self.F()
del form.test
self.assertEqual(form.test, None)
# Make sure deleting a normal attribute works
form.foo = 9
del form.foo
self.assertRaises(AttributeError, form.__delattr__, 'foo')
# Check idempotency
del form.test
self.assertEqual(form.test, None)
def test_ordered_fields(self):
class MyForm(Form):
strawberry = TextField()
banana = TextField()
kiwi = TextField()
self.assertEqual([x.name for x in MyForm()], ['strawberry', 'banana', 'kiwi'])
MyForm.apple = TextField()
self.assertEqual([x.name for x in MyForm()], ['strawberry', 'banana', 'kiwi', 'apple'])
del MyForm.banana
self.assertEqual([x.name for x in MyForm()], ['strawberry', 'kiwi', 'apple'])
MyForm.strawberry = TextField()
self.assertEqual([x.name for x in MyForm()], ['kiwi', 'apple', 'strawberry'])
# Ensure sort is stable: two fields with the same creation counter
# should be subsequently sorted by name.
MyForm.cherry = MyForm.kiwi
self.assertEqual([x.name for x in MyForm()], ['cherry', 'kiwi', 'apple', 'strawberry'])
def test_data_arg(self):
data = {'test': 'foo'}
form = self.F(data=data)
self.assertEqual(form.test.data, 'foo')
form = self.F(data=data, test='bar')
self.assertEqual(form.test.data, 'bar')
class MetaTest(TestCase):
class F(Form):
class Meta:
foo = 9
test = TextField()
class G(Form):
class Meta:
foo = 12
bar = 8
class H(F, G):
class Meta:
quux = 42
class I(F, G):
pass
def test_basic(self):
form = self.H()
meta = form.meta
self.assertEqual(meta.foo, 9)
self.assertEqual(meta.bar, 8)
self.assertEqual(meta.csrf, False)
assert isinstance(meta, self.F.Meta)
assert isinstance(meta, self.G.Meta)
self.assertEqual(type(meta).__bases__, (
self.H.Meta,
self.F.Meta,
self.G.Meta,
DefaultMeta
))
def test_missing_diamond(self):
meta = self.I().meta
self.assertEqual(type(meta).__bases__, (
self.F.Meta,
self.G.Meta,
DefaultMeta
))
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