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# -*- coding: utf-8 -*-
# :Project: python-rapidjson -- Tests on floats
# :Author: John Anderson <sontek@gmail.com>
# :License: MIT License
# :Copyright: © 2015 John Anderson
# :Copyright: © 2016, 2017, 2020, 2024 Lele Gaifax
#
from decimal import Decimal
import math
import pytest
import rapidjson as rj
@pytest.mark.parametrize('value', [
'NaN', '-NaN', '+NaN', 'sNaN', '-sNaN', '+sNaN', 'NaN123', '-NaN123',
])
@pytest.mark.parametrize('use_encoder', [False, True])
def test_decimal_nan_tokens(value, use_encoder):
number = Decimal(value)
mode = rj.NM_DECIMAL | rj.NM_NAN
encode = rj.Encoder(number_mode=mode) if use_encoder else (
lambda obj: rj.dumps(obj, number_mode=mode)
)
assert encode(number) == 'NaN'
encoded = encode({'value': [number]})
decoded = rj.loads(encoded, number_mode=mode)
assert decoded['value'][0].is_nan()
if use_encoder:
strict_encode = rj.Encoder(number_mode=rj.NM_DECIMAL)
else:
strict_encode = lambda obj: rj.dumps(obj, number_mode=rj.NM_DECIMAL)
with pytest.raises(ValueError, match='Out of range decimal'):
strict_encode(number)
def test_infinity_f():
inf = float("inf")
dumped = rj.dumps(inf)
loaded = rj.loads(dumped)
assert loaded == inf
dumped = rj.dumps(inf, allow_nan=True)
loaded = rj.loads(dumped, allow_nan=True)
assert loaded == inf
with pytest.raises(ValueError):
rj.dumps(inf, number_mode=None)
with pytest.raises(ValueError):
rj.dumps(inf, allow_nan=False)
d = Decimal(inf)
assert d.is_infinite()
with pytest.raises(ValueError):
rj.dumps(d, number_mode=rj.NM_DECIMAL)
dumped = rj.dumps(d, number_mode=rj.NM_DECIMAL, allow_nan=True)
loaded = rj.loads(dumped, number_mode=rj.NM_DECIMAL|rj.NM_NAN)
assert loaded == inf
assert loaded.is_infinite()
def test_infinity_c():
inf = float("inf")
dumped = rj.Encoder()(inf)
loaded = rj.Decoder()(dumped)
assert loaded == inf
with pytest.raises(ValueError):
rj.Encoder(number_mode=None)(inf)
d = Decimal(inf)
assert d.is_infinite()
with pytest.raises(ValueError):
rj.Encoder(number_mode=rj.NM_DECIMAL)(d)
dumped = rj.Encoder(number_mode=rj.NM_DECIMAL|rj.NM_NAN)(d)
loaded = rj.Decoder(number_mode=rj.NM_DECIMAL|rj.NM_NAN)(dumped)
assert loaded == inf
assert loaded.is_infinite()
def test_negative_infinity_f():
inf = float("-infinity")
dumped = rj.dumps(inf)
loaded = rj.loads(dumped)
assert loaded == inf
dumped = rj.dumps(inf, allow_nan=True)
loaded = rj.loads(dumped, allow_nan=True)
assert loaded == inf
with pytest.raises(ValueError):
rj.dumps(inf, number_mode=None)
with pytest.raises(ValueError):
rj.dumps(inf, allow_nan=False)
d = Decimal(inf)
assert d.is_infinite()
with pytest.raises(ValueError):
rj.dumps(d, number_mode=rj.NM_DECIMAL)
dumped = rj.dumps(d, number_mode=rj.NM_DECIMAL|rj.NM_NAN)
loaded = rj.loads(dumped, number_mode=rj.NM_DECIMAL, allow_nan=True)
assert loaded == inf
assert loaded.is_infinite()
def test_negative_infinity_c():
inf = float("-infinity")
dumped = rj.Encoder()(inf)
loaded = rj.Decoder()(dumped)
assert loaded == inf
with pytest.raises(ValueError):
rj.Encoder(number_mode=None)(inf)
d = Decimal(inf)
assert d.is_infinite()
with pytest.raises(ValueError):
rj.Encoder(number_mode=rj.NM_DECIMAL)(d)
dumped = rj.Encoder(number_mode=rj.NM_DECIMAL|rj.NM_NAN)(d)
loaded = rj.Decoder(number_mode=rj.NM_DECIMAL|rj.NM_NAN)(dumped)
assert loaded == inf
assert loaded.is_infinite()
def test_nan_f():
nan = float("nan")
dumped = rj.dumps(nan)
loaded = rj.loads(dumped)
assert math.isnan(nan)
assert math.isnan(loaded)
with pytest.raises(ValueError):
rj.dumps(nan, number_mode=None)
with pytest.raises(ValueError):
rj.dumps(nan, allow_nan=False)
d = Decimal(nan)
assert d.is_nan()
with pytest.raises(ValueError):
rj.dumps(d, number_mode=rj.NM_DECIMAL)
dumped = rj.dumps(d, number_mode=rj.NM_DECIMAL|rj.NM_NAN)
loaded = rj.loads(dumped, number_mode=rj.NM_DECIMAL|rj.NM_NAN)
assert loaded.is_nan()
def test_nan_c():
nan = float("nan")
dumped = rj.Encoder()(nan)
loaded = rj.Decoder()(dumped)
assert math.isnan(nan)
assert math.isnan(loaded)
with pytest.raises(ValueError):
rj.Encoder(number_mode=None)(nan)
d = Decimal(nan)
assert d.is_nan()
with pytest.raises(ValueError):
rj.Encoder(number_mode=rj.NM_DECIMAL)(d)
dumped = rj.Encoder(number_mode=rj.NM_DECIMAL|rj.NM_NAN)(d)
loaded = rj.Decoder(number_mode=rj.NM_DECIMAL|rj.NM_NAN)(dumped)
assert loaded.is_nan()
def test_issue_213():
class CustomRepr(float):
def __repr__(self):
stdrepr = super().__repr__()
return f'CustomRepr({stdrepr})'
f = CustomRepr(123.45)
dumped = rj.dumps(f)
loaded = rj.loads(dumped)
assert loaded == 123.45