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test_udecimal: Improve tests based on reported test cases

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also, for the common part, ensure that desktop Python's own decimal
implementation is used.

"print(+c.flags[Foo])" is because udecimal returns 0/1 for these, while
Python's decimal returns False/True.
This commit is contained in:
Jeff Epler 2020-09-19 09:50:35 -05:00
parent ec6f61c6ac
commit b283885de6
1 changed files with 90 additions and 51 deletions
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141
examples/test_udecimal.py
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@ -2,59 +2,83 @@
#
# SPDX-License-Identifier: Unlicense
# pylint: disable=redefined-builtin,wildcard-import,wrong-import-position,unused-wildcard-import,unused-import,broad-except,undefined-variable,used-before-assignment
from jepler_udecimal import *
setcontext(ExtendedContext)
print(Decimal(0))
print(Decimal("1"))
print(Decimal("-.0123"))
print(Decimal(123456))
print(Decimal("123.45e12345678"))
print(Decimal("1.33") + Decimal("1.27"))
print(Decimal("12.34") + Decimal("3.87") - Decimal("18.41"))
dig = Decimal(1)
print(dig / Decimal(3))
getcontext().prec = 18
print(dig / Decimal(3))
print(dig.sqrt())
print(Decimal(3).sqrt())
print(Decimal(3) ** 123)
inf = Decimal(1) / Decimal(0)
print(inf)
neginf = Decimal(-1) / Decimal(0)
print(neginf)
print(neginf + inf)
print(neginf * inf)
try:
print(dig / 0)
except Exception as e:
print("Division by zero")
getcontext().traps[DivisionByZero] = 1
try:
print(dig / 0)
except Exception as e:
print("Division by zero")
c = Context()
c.traps[InvalidOperation] = 0
print(c.flags[InvalidOperation])
try:
c.divide(Decimal(0), Decimal(0))
except Exception as e:
print("Division by zero")
c.traps[InvalidOperation] = 1
print(c.flags[InvalidOperation])
c.flags[InvalidOperation] = 0
print(c.flags[InvalidOperation])
try:
print(c.divide(Decimal(0), Decimal(0)))
except Exception as e:
print("Division by zero")
print(c.flags[InvalidOperation])
try:
print(c.divide(Decimal(0), Decimal(0)))
except Exception as e:
print("Division by zero")
print(c.flags[InvalidOperation])
from decimal import (
Decimal,
getcontext,
setcontext,
ExtendedContext,
DivisionByZero,
InvalidOperation,
Context,
localcontext,
)
except ImportError:
from jepler_udecimal import (
Decimal,
getcontext,
setcontext,
ExtendedContext,
DivisionByZero,
InvalidOperation,
Context,
localcontext,
)
with localcontext():
setcontext(ExtendedContext)
print(Decimal(0))
print(Decimal("1"))
print(Decimal("-.0123"))
print(Decimal(123456))
print(Decimal("123.45e12345678"))
print(Decimal("1.33") + Decimal("1.27"))
print(Decimal("12.34") + Decimal("3.87") - Decimal("18.41"))
dig = Decimal(1)
print(dig / Decimal(3))
getcontext().prec = 18
print(dig / Decimal(3))
print(dig.sqrt())
print(Decimal(3).sqrt())
print(Decimal(3) ** 123)
inf = Decimal(1) / Decimal(0)
print(inf)
neginf = Decimal(-1) / Decimal(0)
print(neginf)
print(neginf + inf)
print(neginf * inf)
try:
print(dig / 0)
except Exception as e:
print("Division by zero")
getcontext().traps[DivisionByZero] = 1
try:
print(dig / 0)
except Exception as e:
print("Division by zero")
c = Context()
c.traps[InvalidOperation] = 0
print(+c.flags[InvalidOperation])
try:
c.divide(Decimal(0), Decimal(0))
except Exception as e:
print("Division by zero")
c.traps[InvalidOperation] = 1
print(+c.flags[InvalidOperation])
c.flags[InvalidOperation] = 0
print(+c.flags[InvalidOperation])
try:
print(c.divide(Decimal(0), Decimal(0)))
except Exception as e:
print("Division by zero")
print(+c.flags[InvalidOperation])
try:
print(c.divide(Decimal(0), Decimal(0)))
except Exception as e:
print("Division by zero")
print(+c.flags[InvalidOperation])
import jepler_udecimal.utrig
from jepler_udecimal import Decimal
@ -64,3 +88,18 @@ print(Decimal("-.1").asin())
print(Decimal(".4").tan())
print(Decimal(".5").cos())
print(Decimal(".6").sin())
print(Decimal("0").sin())
print(Decimal("360").sin())
print(Decimal("360e19").sin())
print(Decimal("NaN").cos())
print(Decimal("NaN").tan())
print(Decimal("NaN").sin())
try:
print(Decimal("2").acos())
except Exception as e:
print("exception")
try:
print(Decimal("2").asin())
except Exception as e:
print("exception")
print(Decimal("2").atan())