mirror of
https://github.com/MikeMcl/decimal.js.git
synced 2024-10-27 20:34:12 +00:00
126 lines
3.1 KiB
Python
126 lines
3.1 KiB
Python
from decimal import Decimal, getcontext
|
|
import json
|
|
import subprocess
|
|
import hypothesis
|
|
from hypothesis import given, settings
|
|
from hypothesis.strategies import decimals, integers, tuples
|
|
from mpmath import mp
|
|
|
|
mp.prec = 500
|
|
|
|
node = subprocess.Popen(
|
|
["node", "evaluate.mjs"], stdout=subprocess.PIPE, stdin=subprocess.PIPE
|
|
)
|
|
|
|
|
|
def get_decimal(func: str, args: list, config: dict):
|
|
arg = json.dumps({"func": func, "args": args, "config": config}).encode() + b"\r"
|
|
node.stdin.write(arg)
|
|
node.stdin.flush()
|
|
return Decimal(node.stdout.readline().strip().decode())
|
|
|
|
|
|
def to_precision(x, precision=14):
|
|
getcontext().prec = precision
|
|
return Decimal(str(x)) * Decimal("1.0")
|
|
|
|
|
|
decimal_fixed_precision = tuples(
|
|
decimals(
|
|
allow_nan=False, allow_infinity=False, min_value=-1, max_value=1, places=14
|
|
),
|
|
integers(min_value=-99, max_value=99),
|
|
).map(lambda tup: tup[0] * Decimal(10) ** tup[1])
|
|
|
|
decimal_positive = tuples(
|
|
decimals(
|
|
allow_nan=False, allow_infinity=False, min_value=1e-13, max_value=1, places=14
|
|
),
|
|
integers(min_value=-99, max_value=99),
|
|
).map(lambda tup: tup[0] * Decimal(10) ** tup[1])
|
|
|
|
|
|
@given(decimal_fixed_precision)
|
|
@settings(max_examples=100)
|
|
def test_tangent(x):
|
|
y = to_precision(mp.tan(x))
|
|
z = get_decimal("tan", [str(x)], {"precision": 14})
|
|
assert y == z
|
|
|
|
|
|
@given(decimal_fixed_precision)
|
|
@settings(max_examples=100)
|
|
def test_cosine(x):
|
|
y = to_precision(mp.cos(x))
|
|
z = get_decimal("cos", [str(x)], {"precision": 14})
|
|
assert y == z
|
|
|
|
|
|
@given(decimal_fixed_precision)
|
|
@settings(max_examples=100)
|
|
def test_sine(x):
|
|
y = to_precision(mp.sin(x))
|
|
z = get_decimal("sin", [str(x)], {"precision": 14})
|
|
assert y == z
|
|
|
|
|
|
@given(decimal_positive)
|
|
@settings(max_examples=100)
|
|
def test_log(x):
|
|
y = to_precision(mp.log10(x))
|
|
z = get_decimal("log", [str(x)], {"precision": 14})
|
|
assert y == z
|
|
|
|
|
|
inverse_trig_strat = decimals(
|
|
allow_nan=False, allow_infinity=False, min_value=-1, max_value=1, places=14
|
|
)
|
|
|
|
|
|
@given(inverse_trig_strat)
|
|
@settings(max_examples=100)
|
|
def test_acos(x):
|
|
y = to_precision(mp.acos(x))
|
|
z = get_decimal("acos", [str(x)], {"precision": 14})
|
|
assert y == z
|
|
|
|
|
|
@given(inverse_trig_strat)
|
|
@settings(max_examples=100)
|
|
def test_asin(x):
|
|
y = to_precision(mp.asin(x))
|
|
z = get_decimal("asin", [str(x)], {"precision": 14})
|
|
assert y == z
|
|
|
|
|
|
@given(decimal_fixed_precision)
|
|
@settings(max_examples=100)
|
|
def test_atan(x):
|
|
y = to_precision(mp.atan(x))
|
|
z = get_decimal("atan", [str(x)], {"precision": 14})
|
|
assert y == z
|
|
|
|
|
|
@given(decimal_fixed_precision)
|
|
@settings(max_examples=10)
|
|
def test_cosh(x):
|
|
y = to_precision(mp.cosh(x))
|
|
z = get_decimal("cosh", [str(x)], {"precision": 14})
|
|
assert y == z
|
|
|
|
|
|
@given(decimal_fixed_precision)
|
|
@settings(max_examples=4)
|
|
def test_sinh(x):
|
|
y = to_precision(mp.sinh(x))
|
|
z = get_decimal("sinh", [str(x)], {"precision": 14})
|
|
assert y == z
|
|
|
|
|
|
@given(decimal_fixed_precision)
|
|
@settings(max_examples=4)
|
|
def test_tanh(x):
|
|
y = to_precision(mp.tanh(x))
|
|
z = get_decimal("tanh", [str(x)], {"precision": 14})
|
|
assert y == z
|