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 ignore_warnings, override_settings from django.urls import reverse from django.utils import formats, translation from django.utils.deprecation import RemovedInDjango50Warning from . import FormFieldAssertionsMixin class FloatFieldTest(FormFieldAssertionsMixin, SimpleTestCase): def test_floatfield_1(self): f = FloatField() self.assertWidgetRendersTo( f, '' ) 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, '', ) 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_widget_attrs(self): f = FloatField(widget=NumberInput(attrs={"step": 0.01, "max": 1.0, "min": 0.0})) self.assertWidgetRendersTo( f, '', ) 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, '') 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)) # RemovedInDjango50Warning: When the deprecation ends, remove # @ignore_warnings and USE_L10N=False. The test should remain because # format-related settings will take precedence over locale-dictated # formats. @ignore_warnings(category=RemovedInDjango50Warning) @override_settings(USE_L10N=False, DECIMAL_SEPARATOR=",") def test_decimalfield_support_decimal_separator(self): f = FloatField(localize=True) self.assertEqual(f.clean("1001,10"), 1001.10) self.assertEqual(f.clean("1001.10"), 1001.10) # RemovedInDjango50Warning: When the deprecation ends, remove # @ignore_warnings and USE_L10N=False. The test should remain because # format-related settings will take precedence over locale-dictated # formats. @ignore_warnings(category=RemovedInDjango50Warning) @override_settings( USE_L10N=False, DECIMAL_SEPARATOR=",", USE_THOUSAND_SEPARATOR=True, THOUSAND_SEPARATOR=".", ) def test_decimalfield_support_thousands_separator(self): 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)