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django/tests/forms_tests/field_tests/test_floatfield.py
David Smith 097e3a70c1 Refs #33476 -- Applied Black's 2023 stable style.
Black 23.1.0 is released which, as the first release of the year,
introduces the 2023 stable style. This incorporates most of last year's
preview style.

https://github.com/psf/black/releases/tag/23.1.0
2023-02-01 11:04:38 +01:00

152 lines
5.8 KiB
Python

from django.core.exceptions import ValidationError
from django.forms import FloatField, NumberInput
from django.test import SimpleTestCase
from django.test.selenium import SeleniumTestCase
from django.test.utils import override_settings
from django.urls import reverse
from django.utils import formats, translation
from . import FormFieldAssertionsMixin
class FloatFieldTest(FormFieldAssertionsMixin, SimpleTestCase):
def test_floatfield_1(self):
f = FloatField()
self.assertWidgetRendersTo(
f, '<input step="any" 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(1.0, f.clean("1"))
self.assertIsInstance(f.clean("1"), float)
self.assertEqual(23.0, f.clean("23"))
self.assertEqual(3.1400000000000001, f.clean("3.14"))
self.assertEqual(3.1400000000000001, f.clean(3.14))
self.assertEqual(42.0, f.clean(42))
with self.assertRaisesMessage(ValidationError, "'Enter a number.'"):
f.clean("a")
self.assertEqual(1.0, f.clean("1.0 "))
self.assertEqual(1.0, f.clean(" 1.0"))
self.assertEqual(1.0, f.clean(" 1.0 "))
with self.assertRaisesMessage(ValidationError, "'Enter a number.'"):
f.clean("1.0a")
self.assertIsNone(f.max_value)
self.assertIsNone(f.min_value)
with self.assertRaisesMessage(ValidationError, "'Enter a number.'"):
f.clean("Infinity")
with self.assertRaisesMessage(ValidationError, "'Enter a number.'"):
f.clean("NaN")
with self.assertRaisesMessage(ValidationError, "'Enter a number.'"):
f.clean("-Inf")
def test_floatfield_2(self):
f = FloatField(required=False)
self.assertIsNone(f.clean(""))
self.assertIsNone(f.clean(None))
self.assertEqual(1.0, f.clean("1"))
self.assertIsNone(f.max_value)
self.assertIsNone(f.min_value)
def test_floatfield_3(self):
f = FloatField(max_value=1.5, min_value=0.5)
self.assertWidgetRendersTo(
f,
'<input step="any" name="f" min="0.5" max="1.5" type="number" id="id_f" '
"required>",
)
with self.assertRaisesMessage(
ValidationError, "'Ensure this value is less than or equal to 1.5.'"
):
f.clean("1.6")
with self.assertRaisesMessage(
ValidationError, "'Ensure this value is greater than or equal to 0.5.'"
):
f.clean("0.4")
self.assertEqual(1.5, f.clean("1.5"))
self.assertEqual(0.5, f.clean("0.5"))
self.assertEqual(f.max_value, 1.5)
self.assertEqual(f.min_value, 0.5)
def test_floatfield_4(self):
f = FloatField(step_size=0.02)
self.assertWidgetRendersTo(
f,
'<input name="f" step="0.02" type="number" id="id_f" required>',
)
msg = "'Ensure this value is a multiple of step size 0.02.'"
with self.assertRaisesMessage(ValidationError, msg):
f.clean("0.01")
self.assertEqual(2.34, f.clean("2.34"))
self.assertEqual(2.1, f.clean("2.1"))
self.assertEqual(-0.50, f.clean("-.5"))
self.assertEqual(-1.26, f.clean("-1.26"))
self.assertEqual(f.step_size, 0.02)
def test_floatfield_widget_attrs(self):
f = FloatField(widget=NumberInput(attrs={"step": 0.01, "max": 1.0, "min": 0.0}))
self.assertWidgetRendersTo(
f,
'<input step="0.01" name="f" min="0.0" max="1.0" type="number" id="id_f" '
"required>",
)
def test_floatfield_localized(self):
"""
A localized FloatField's widget renders to a text input without any
number input specific attributes.
"""
f = FloatField(localize=True)
self.assertWidgetRendersTo(f, '<input id="id_f" name="f" type="text" required>')
def test_floatfield_changed(self):
f = FloatField()
n = 4.35
self.assertFalse(f.has_changed(n, "4.3500"))
with translation.override("fr"):
f = FloatField(localize=True)
localized_n = formats.localize_input(n) # -> '4,35' in French
self.assertFalse(f.has_changed(n, localized_n))
@override_settings(DECIMAL_SEPARATOR=",")
def test_floatfield_support_decimal_separator(self):
with translation.override(None):
f = FloatField(localize=True)
self.assertEqual(f.clean("1001,10"), 1001.10)
self.assertEqual(f.clean("1001.10"), 1001.10)
@override_settings(
DECIMAL_SEPARATOR=",",
USE_THOUSAND_SEPARATOR=True,
THOUSAND_SEPARATOR=".",
)
def test_floatfield_support_thousands_separator(self):
with translation.override(None):
f = FloatField(localize=True)
self.assertEqual(f.clean("1.001,10"), 1001.10)
msg = "'Enter a number.'"
with self.assertRaisesMessage(ValidationError, msg):
f.clean("1,001.1")
@override_settings(ROOT_URLCONF="forms_tests.urls")
class FloatFieldHTMLTest(SeleniumTestCase):
available_apps = ["forms_tests"]
def test_float_field_rendering_passes_client_side_validation(self):
"""
Rendered widget allows non-integer value with the client-side
validation.
"""
from selenium.webdriver.common.by import By
self.selenium.get(self.live_server_url + reverse("form_view"))
number_input = self.selenium.find_element(By.ID, "id_number")
number_input.send_keys("0.5")
is_valid = self.selenium.execute_script(
"return document.getElementById('id_number').checkValidity()"
)
self.assertTrue(is_valid)