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from decimal import Decimal
from decimal import ROUND_UP
import pytest
from tests.common import DummyPostData
from wtforms import Form
from wtforms.fields import DecimalField
from wtforms.utils import unset_value
class F(Form):
class Meta:
locales = ["hi_IN", "en_US"]
a = DecimalField(use_locale=True)
def _format_test(expected, val, locales=unset_value):
meta = None
if locales is not unset_value:
meta = {"locales": locales}
form = F(meta=meta, a=Decimal(val))
assert form.a._value() == expected
def test_typeerror():
def build(**kw):
form = F()
DecimalField(
use_locale=True,
name="a",
_form=form,
_translations=form.meta.get_translations(form),
**kw,
)
with pytest.raises(TypeError):
build(places=2)
with pytest.raises(TypeError):
build(rounding=ROUND_UP)
def test_formatting():
val = Decimal("123456.789")
neg = Decimal("-5.2")
_format_test("1,23,456.789", val)
_format_test("-12,52,378.2", "-1252378.2")
_format_test("123,456.789", val, ["en_US"])
_format_test("-5.2", neg, ["en_US"])
_format_test("123.456,789", val, ["es_ES"])
_format_test("123.456,789", val, ["de_DE"])
_format_test("-5,2", neg, ["de_DE"])
_format_test("-12’345.2", "-12345.2", ["de_CH"])
def _parse_test(raw_val, expected, locales=unset_value):
meta = None
if locales is not unset_value:
meta = {"locales": locales}
form = F(DummyPostData(a=raw_val), meta=meta)
assert (
form.validate()
), f"Expected value {raw_val} to parse as a decimal, instead got {form.a.errors}"
assert form.a.data == expected
def _fail_parse(raw_val, expected_error, locales=unset_value):
meta = None
if locales is not unset_value:
meta = {"locales": locales}
form = F(DummyPostData(a=raw_val), meta=meta)
assert not form.validate()
assert form.a.errors[0] == expected_error
def test_parsing():
expected = Decimal("123456.789")
_parse_test("1,23,456.789", expected)
_parse_test("1,23,456.789", expected, ["en_US"])
_parse_test("1.23.456,789", expected, ["de_DE"])
_parse_test("1’23’456.789", expected, ["de_CH"])
_fail_parse("1,23,456.5", "Keine g\xfcltige Dezimalzahl.", ["de_DE"])
_fail_parse("1.234.567,5", "Not a valid decimal value.", ["en_US"])
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