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django/tests/forms_tests/field_tests/test_integerfield.py

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from django.core.exceptions import ValidationError
from django.forms import IntegerField, Textarea
from django.test import SimpleTestCase
from . import FormFieldAssertionsMixin
class IntegerFieldTest(FormFieldAssertionsMixin, SimpleTestCase):
def test_integerfield_1(self):
f = IntegerField()
self.assertWidgetRendersTo(
f, '<input type="number" name="f" id="id_f" required>'
)
with self.assertRaisesMessage(ValidationError, "'This field is required.'"):
f.clean("")
with self.assertRaisesMessage(ValidationError, "'This field is required.'"):
f.clean(None)
self.assertEqual(1, f.clean("1"))
self.assertIsInstance(f.clean("1"), int)
self.assertEqual(23, f.clean("23"))
with self.assertRaisesMessage(ValidationError, "'Enter a whole number.'"):
f.clean("a")
self.assertEqual(42, f.clean(42))
with self.assertRaisesMessage(ValidationError, "'Enter a whole number.'"):
f.clean(3.14)
self.assertEqual(1, f.clean("1 "))
self.assertEqual(1, f.clean(" 1"))
self.assertEqual(1, f.clean(" 1 "))
with self.assertRaisesMessage(ValidationError, "'Enter a whole number.'"):
f.clean("1a")
self.assertIsNone(f.max_value)
self.assertIsNone(f.min_value)
def test_integerfield_2(self):
f = IntegerField(required=False)
self.assertIsNone(f.clean(""))
self.assertEqual("None", repr(f.clean("")))
self.assertIsNone(f.clean(None))
self.assertEqual("None", repr(f.clean(None)))
self.assertEqual(1, f.clean("1"))
self.assertIsInstance(f.clean("1"), int)
self.assertEqual(23, f.clean("23"))
with self.assertRaisesMessage(ValidationError, "'Enter a whole number.'"):
f.clean("a")
self.assertEqual(1, f.clean("1 "))
self.assertEqual(1, f.clean(" 1"))
self.assertEqual(1, f.clean(" 1 "))
with self.assertRaisesMessage(ValidationError, "'Enter a whole number.'"):
f.clean("1a")
self.assertIsNone(f.max_value)
self.assertIsNone(f.min_value)
def test_integerfield_3(self):
f = IntegerField(max_value=10)
self.assertWidgetRendersTo(
f, '<input max="10" type="number" name="f" id="id_f" required>'
)
with self.assertRaisesMessage(ValidationError, "'This field is required.'"):
f.clean(None)
self.assertEqual(1, f.clean(1))
self.assertEqual(10, f.clean(10))
with self.assertRaisesMessage(
ValidationError, "'Ensure this value is less than or equal to 10.'"
):
f.clean(11)
self.assertEqual(10, f.clean("10"))
with self.assertRaisesMessage(
ValidationError, "'Ensure this value is less than or equal to 10.'"
):
f.clean("11")
self.assertEqual(f.max_value, 10)
self.assertIsNone(f.min_value)
def test_integerfield_4(self):
f = IntegerField(min_value=10)
self.assertWidgetRendersTo(
f, '<input id="id_f" type="number" name="f" min="10" required>'
)
with self.assertRaisesMessage(ValidationError, "'This field is required.'"):
f.clean(None)
with self.assertRaisesMessage(
ValidationError, "'Ensure this value is greater than or equal to 10.'"
):
f.clean(1)
self.assertEqual(10, f.clean(10))
self.assertEqual(11, f.clean(11))
self.assertEqual(10, f.clean("10"))
self.assertEqual(11, f.clean("11"))
self.assertIsNone(f.max_value)
self.assertEqual(f.min_value, 10)
def test_integerfield_5(self):
f = IntegerField(min_value=10, max_value=20)
self.assertWidgetRendersTo(
f, '<input id="id_f" max="20" type="number" name="f" min="10" required>'
)
with self.assertRaisesMessage(ValidationError, "'This field is required.'"):
f.clean(None)
with self.assertRaisesMessage(
ValidationError, "'Ensure this value is greater than or equal to 10.'"
):
f.clean(1)
self.assertEqual(10, f.clean(10))
self.assertEqual(11, f.clean(11))
self.assertEqual(10, f.clean("10"))
self.assertEqual(11, f.clean("11"))
self.assertEqual(20, f.clean(20))
with self.assertRaisesMessage(
ValidationError, "'Ensure this value is less than or equal to 20.'"
):
f.clean(21)
self.assertEqual(f.max_value, 20)
self.assertEqual(f.min_value, 10)
def test_integerfield_6(self):
f = IntegerField(step_size=3)
self.assertWidgetRendersTo(
f,
'<input name="f" step="3" type="number" id="id_f" required>',
)
with self.assertRaisesMessage(
ValidationError, "'Ensure this value is a multiple of step size 3.'"
):
f.clean("10")
self.assertEqual(12, f.clean(12))
self.assertEqual(12, f.clean("12"))
self.assertEqual(f.step_size, 3)
def test_integerfield_step_size_min_value(self):
f = IntegerField(step_size=3, min_value=-1)
self.assertWidgetRendersTo(
f,
'<input name="f" min="-1" step="3" type="number" id="id_f" required>',
)
msg = (
"Ensure this value is a multiple of step size 3, starting from -1, e.g. "
"-1, 2, 5, and so on."
)
with self.assertRaisesMessage(ValidationError, msg):
f.clean("9")
self.assertEqual(f.clean("2"), 2)
self.assertEqual(f.clean("-1"), -1)
self.assertEqual(f.step_size, 3)
def test_integerfield_localized(self):
"""
A localized IntegerField's widget renders to a text input without any
number input specific attributes.
"""
f1 = IntegerField(localize=True)
self.assertWidgetRendersTo(
f1, '<input id="id_f" name="f" type="text" required>'
)
def test_integerfield_float(self):
f = IntegerField()
self.assertEqual(1, f.clean(1.0))
self.assertEqual(1, f.clean("1.0"))
self.assertEqual(1, f.clean(" 1.0 "))
self.assertEqual(1, f.clean("1."))
self.assertEqual(1, f.clean(" 1. "))
with self.assertRaisesMessage(ValidationError, "'Enter a whole number.'"):
f.clean("1.5")
with self.assertRaisesMessage(ValidationError, "'Enter a whole number.'"):
f.clean("")
def test_integerfield_big_num(self):
f = IntegerField()
self.assertEqual(9223372036854775808, f.clean(9223372036854775808))
self.assertEqual(9223372036854775808, f.clean("9223372036854775808"))
self.assertEqual(9223372036854775808, f.clean("9223372036854775808.0"))
def test_integerfield_unicode_number(self):
f = IntegerField()
self.assertEqual(50, f.clean(""))
def test_integerfield_subclass(self):
"""
Class-defined widget is not overwritten by __init__() (#22245).
"""
class MyIntegerField(IntegerField):
widget = Textarea
f = MyIntegerField()
self.assertEqual(f.widget.__class__, Textarea)
f = MyIntegerField(localize=True)
self.assertEqual(f.widget.__class__, Textarea)