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from django.forms import Form, HiddenInput, NullBooleanField, RadioSelect
from django.test import SimpleTestCase
from . import FormFieldAssertionsMixin
class NullBooleanFieldTest(FormFieldAssertionsMixin, SimpleTestCase):
def test_nullbooleanfield_clean(self):
f = NullBooleanField()
self.assertIsNone(f.clean(""))
self.assertTrue(f.clean(True))
self.assertFalse(f.clean(False))
self.assertIsNone(f.clean(None))
self.assertFalse(f.clean("0"))
self.assertTrue(f.clean("1"))
self.assertIsNone(f.clean("2"))
self.assertIsNone(f.clean("3"))
self.assertIsNone(f.clean("hello"))
self.assertTrue(f.clean("true"))
self.assertFalse(f.clean("false"))
def test_nullbooleanfield_2(self):
# The internal value is preserved if using HiddenInput (#7753).
class HiddenNullBooleanForm(Form):
hidden_nullbool1 = NullBooleanField(widget=HiddenInput, initial=True)
hidden_nullbool2 = NullBooleanField(widget=HiddenInput, initial=False)
f = HiddenNullBooleanForm()
self.assertHTMLEqual(
str(f),
'<input type="hidden" name="hidden_nullbool1" value="True" '
'id="id_hidden_nullbool1">'
'<input type="hidden" name="hidden_nullbool2" value="False" '
'id="id_hidden_nullbool2">',
)
def test_nullbooleanfield_3(self):
class HiddenNullBooleanForm(Form):
hidden_nullbool1 = NullBooleanField(widget=HiddenInput, initial=True)
hidden_nullbool2 = NullBooleanField(widget=HiddenInput, initial=False)
f = HiddenNullBooleanForm(
{"hidden_nullbool1": "True", "hidden_nullbool2": "False"}
)
self.assertIsNone(f.full_clean())
self.assertTrue(f.cleaned_data["hidden_nullbool1"])
self.assertFalse(f.cleaned_data["hidden_nullbool2"])
def test_nullbooleanfield_4(self):
# Make sure we're compatible with MySQL, which uses 0 and 1 for its
# boolean values (#9609).
NULLBOOL_CHOICES = (("1", "Yes"), ("0", "No"), ("", "Unknown"))
class MySQLNullBooleanForm(Form):
nullbool0 = NullBooleanField(widget=RadioSelect(choices=NULLBOOL_CHOICES))
nullbool1 = NullBooleanField(widget=RadioSelect(choices=NULLBOOL_CHOICES))
nullbool2 = NullBooleanField(widget=RadioSelect(choices=NULLBOOL_CHOICES))
f = MySQLNullBooleanForm({"nullbool0": "1", "nullbool1": "0", "nullbool2": ""})
self.assertIsNone(f.full_clean())
self.assertTrue(f.cleaned_data["nullbool0"])
self.assertFalse(f.cleaned_data["nullbool1"])
self.assertIsNone(f.cleaned_data["nullbool2"])
def test_nullbooleanfield_changed(self):
f = NullBooleanField()
self.assertTrue(f.has_changed(False, None))
self.assertTrue(f.has_changed(None, False))
self.assertFalse(f.has_changed(None, None))
self.assertFalse(f.has_changed(False, False))
self.assertTrue(f.has_changed(True, False))
self.assertTrue(f.has_changed(True, None))
self.assertTrue(f.has_changed(True, False))
# HiddenInput widget sends string values for boolean but doesn't clean
# them in value_from_datadict.
self.assertFalse(f.has_changed(False, "False"))
self.assertFalse(f.has_changed(True, "True"))
self.assertFalse(f.has_changed(None, ""))
self.assertTrue(f.has_changed(False, "True"))
self.assertTrue(f.has_changed(True, "False"))
self.assertTrue(f.has_changed(None, "False"))
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