--[[ ldecNumberUnitTest.lua
* Lua wrapper for decNumber -- unit testing
* created September 7, 2006 by e
*
* Copyright (c) 2006 Doug Currie, Londonderry, NH
* All rights reserved.
*
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, and/or sell copies of the Software, and to permit persons
to whom the Software is furnished to do so, provided that the above
copyright notice(s) and this permission notice appear in all copies of
the Software and that both the above copyright notice(s) and this
permission notice appear in supporting documentation.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*********************************************************************]]--
require "ldecNumber"
require "lunit" -- http://www.nessie.de/mroth/lunit/ -- using 0.4a pre
-- this test is woefully incomplete!
lunit.setprivfenv()
lunit.import "assertions"
lunit.import "checks"
print (decNumber.version)
local comp_funcs = lunit.TestCase("Comparison Functions")
function comp_funcs:test()
local one = decNumber.tonumber "1"
local mone = decNumber.tonumber "-1"
assert_equal(false, (one < one))
assert_equal(false, (one > one))
assert_equal(true, (one <= one))
assert_equal(true, (one >= one))
assert_equal(true, (one == one))
assert_equal(false, (one ~= one))
assert_equal(false, (mone < mone))
assert_equal(false, (mone > mone))
assert_equal(true, (mone <= mone))
assert_equal(true, (mone >= mone))
assert_equal(true, (mone == mone))
assert_equal(false, (mone ~= mone))
assert_equal(true, (mone < one))
assert_equal(false, (mone > one))
assert_equal(true, (mone <= one))
assert_equal(false, (mone >= one))
assert_equal(false, (mone == one))
assert_equal(true, (mone ~= one))
assert_equal(false, (one < mone))
assert_equal(true, (one > mone))
assert_equal(false, (one <= mone))
assert_equal(true, (one >= mone))
assert_equal(false, (one == mone))
assert_equal(true, (one ~= mone))
end
func_memoize = function(f, t)
local t = t or {}
return function(k)
local v = t[k]
if v==nil then
v = f(k)
t[k] = v
end
return v
end
end
local fib_funcs = lunit.TestCase("Fib Functions")
function fib_funcs:test()
local one = decNumber.tonumber "1"
ctx = decNumber.getcontext()
ctx:setdefault (decNumber.INIT_BASE)
ctx:setdigits (69)
local Fib
Fib = func_memoize(function(n) return Fib(n-1) + Fib(n-2) end,
{
[1] = one,
[2] = one
})
assert_equal (Fib(1),one)
assert_equal (Fib(2),one)
assert_equal (Fib(6),decNumber.tonumber "8")
assert_equal (Fib(7):tostring(),"13")
assert_equal (tostring(Fib(200)),"280571172992510140037611932413038677189525")
end
local mod_funcs = lunit.TestCase("Floor/Mod Functions")
local function assert_qequal(x,y,...)
local pass = (x-y):abs() < (decNumber.tonumber "0.0001")
if not pass then print (x:tostring(),y:tostring()) end
return assert_true(pass, ...)
end
local function assert_nequal(x,y,...)
local pass = x:isnan() and y:isnan() or x == y
if not pass then print (x:tostring(),y:tostring()) end
return assert_true(pass, ...)
end
function mod_funcs:test()
local one = decNumber.tonumber "1"
local zero = decNumber.tonumber "0"
local a,b,x,y
ctx = decNumber.getcontext()
ctx:setdefault (decNumber.INIT_BASE)
ctx:setdigits (69)
ctx:setround (decNumber.ROUND_FLOOR)
-- exceptions
assert_true (zero:divide(zero):isnan())
assert_true (zero:divideinteger(zero):isnan())
assert_true (zero:remainder(zero):isnan())
assert_true (zero:remaindernear(zero):isnan())
assert_true (one:divide(zero):isinfinite())
assert_true (one:divideinteger(zero):isinfinite())
assert_true (one:remainder(zero):isnan())
assert_true (one:remaindernear(zero):isnan())
a = one
b = one
assert_equal (a:remainder(b),a - b * a:divideinteger(b))
assert_equal ((-a):remainder(b),(-a) - b * (-a):divideinteger(b))
assert_equal (a:remainder(-b),a + b * a:divideinteger(-b))
assert_equal ((-a):remainder(-b),(-a) + b * (-a):divideinteger(-b))
for i = 1,100 do
x = math.random(999999999)
y = math.random(999999999)
a = decNumber.tonumber(x)
b = decNumber.tonumber(y)
assert_equal (a:remainder(b),a - b * a:divideinteger(b))
assert_equal ((-a):remainder(b),(-a) - b * (-a):divideinteger(b))
assert_equal (a:remainder(-b),a + b * a:divideinteger(-b))
assert_equal ((-a):remainder(-b),(-a) + b * (-a):divideinteger(-b))
assert_equal (decNumber.mod(a,b),decNumber.tonumber(x%y))
assert_equal (decNumber.mod(-a,b),decNumber.tonumber((-x)%y))
assert_equal (decNumber.mod(a,-b),decNumber.tonumber(x%(-y)))
assert_equal (decNumber.mod(-a,-b),decNumber.tonumber((-x)%(-y)))
end
ctx:setround (decNumber.ROUND_CEILING)
a = one
b = zero
assert_nequal (a:remainder(b),a - b * a:divideinteger(b))
assert_nequal ((-a):remainder(b),(-a) - b * (-a):divideinteger(b))
assert_nequal (a:remainder(-b),a + b * a:divideinteger(-b))
assert_nequal ((-a):remainder(-b),(-a) + b * (-a):divideinteger(-b))
for i = 1,100 do
x = math.random(999999999)
y = math.random(999999999)
a = decNumber.tonumber(x)
b = decNumber.tonumber(y)
assert_equal (a:remainder(b),a - b * a:divideinteger(b))
assert_equal ((-a):remainder(b),(-a) - b * (-a):divideinteger(b))
assert_equal (a:remainder(-b),a + b * a:divideinteger(-b))
assert_equal ((-a):remainder(-b),(-a) + b * (-a):divideinteger(-b))
assert_equal (decNumber.mod(a,b),decNumber.tonumber(x%y))
assert_equal (decNumber.mod(-a,b),decNumber.tonumber((-x)%y))
assert_equal (decNumber.mod(a,-b),decNumber.tonumber(x%(-y)))
assert_equal (decNumber.mod(-a,-b),decNumber.tonumber((-x)%(-y)))
end
ctx:setround (decNumber.ROUND_FLOOR)
a = zero
b = one
assert_equal (a:remainder(b),a - b * a:divideinteger(b))
assert_equal ((-a):remainder(b),(-a) - b * (-a):divideinteger(b))
assert_equal (a:remainder(-b),a + b * a:divideinteger(-b))
assert_equal ((-a):remainder(-b),(-a) + b * (-a):divideinteger(-b))
for i = 1,100 do
x = math.random(999999999)/2^math.random(99)
y = math.random(999999999)/2^math.random(99)
a = decNumber.tonumber(x)
b = decNumber.tonumber(y)
assert_equal (a:remainder(b),a - b * a:divideinteger(b))
assert_equal ((-a):remainder(b),(-a) - b * (-a):divideinteger(b))
assert_equal (a:remainder(-b),a + b * a:divideinteger(-b))
assert_equal ((-a):remainder(-b),(-a) + b * (-a):divideinteger(-b))
assert_qequal (decNumber.mod(a,b),decNumber.tonumber(x%y))
assert_qequal (decNumber.mod(-a,b),decNumber.tonumber((-x)%y))
assert_qequal (decNumber.mod(a,-b),decNumber.tonumber(x%(-y)))
assert_qequal (decNumber.mod(-a,-b),decNumber.tonumber((-x)%(-y)))
end
ctx:setround (decNumber.ROUND_CEILING)
a = zero
b = zero
assert_nequal (a:remainder(b),a - b * a:divideinteger(b))
assert_nequal ((-a):remainder(b),(-a) - b * (-a):divideinteger(b))
assert_nequal (a:remainder(-b),a + b * a:divideinteger(-b))
assert_nequal ((-a):remainder(-b),(-a) + b * (-a):divideinteger(-b))
for i = 1,100 do
x = math.random(999999999)/2^math.random(99)
y = math.random(999999999)/2^math.random(99)
a = decNumber.tonumber(x)
b = decNumber.tonumber(y)
assert_equal (a:remainder(b),a - b * a:divideinteger(b))
assert_equal ((-a):remainder(b),(-a) - b * (-a):divideinteger(b))
assert_equal (a:remainder(-b),a + b * a:divideinteger(-b))
assert_equal ((-a):remainder(-b),(-a) + b * (-a):divideinteger(-b))
assert_qequal (decNumber.mod(a,b),decNumber.tonumber(x%y))
assert_qequal (decNumber.mod(-a,b),decNumber.tonumber((-x)%y))
assert_qequal (decNumber.mod(a,-b),decNumber.tonumber(x%(-y)))
assert_qequal (decNumber.mod(-a,-b),decNumber.tonumber((-x)%(-y)))
end
end
function mod_funcs:testinfix()
local one = decNumber.tonumber "1"
local zero = decNumber.tonumber "0"
local a,b,x,y
ctx = decNumber.getcontext()
ctx:setdefault (decNumber.INIT_BASE)
ctx:setdigits (69)
ctx:setround (decNumber.ROUND_FLOOR)
-- exceptions
assert_true (zero:divide(zero):isnan())
assert_true (zero:divideinteger(zero):isnan())
assert_true (zero:remainder(zero):isnan())
assert_true (zero:remaindernear(zero):isnan())
assert_true (one:divide(zero):isinfinite())
assert_true (one:divideinteger(zero):isinfinite())
assert_true (one:remainder(zero):isnan())
assert_true (one:remaindernear(zero):isnan())
-- special cases
x = 3
y = -1
a = decNumber.tonumber(x)
b = decNumber.tonumber(y)
assert_equal (a%b,decNumber.tonumber(x%y))
x = 3
y = 1
a = decNumber.tonumber(x)
b = decNumber.tonumber(y)
assert_equal (a%b,decNumber.tonumber(x%y))
x = -3
y = 1
a = decNumber.tonumber(x)
b = decNumber.tonumber(y)
assert_equal (a%b,decNumber.tonumber(x%y))
x = -3
y = -1
a = decNumber.tonumber(x)
b = decNumber.tonumber(y)
assert_equal (a%b,decNumber.tonumber(x%y))
--
a = one + one
b = one
assert_equal (a:remainder(b),a - b * a:divideinteger(b))
assert_equal ((-a):remainder(b),(-a) - b * (-a):divideinteger(b))
assert_equal (a:remainder(-b),a + b * a:divideinteger(-b))
assert_equal ((-a):remainder(-b),(-a) + b * (-a):divideinteger(-b))
for i = 1,100 do
x = (-1^math.random(2)) * math.random(999999999)
y = (-1^math.random(2)) * math.random(999999999)
a = decNumber.tonumber(x)
b = decNumber.tonumber(y)
assert_equal (a:remainder(b),a - b * a:divideinteger(b))
assert_equal ((-a):remainder(b),(-a) - b * (-a):divideinteger(b))
assert_equal (a:remainder(-b),a + b * a:divideinteger(-b))
assert_equal ((-a):remainder(-b),(-a) + b * (-a):divideinteger(-b))
assert_equal (a%b,decNumber.tonumber(x%y))
assert_equal ((-a)%b,decNumber.tonumber((-x)%y))
assert_equal (a%(-b),decNumber.tonumber(x%(-y)))
assert_equal ((-a)%(-b),decNumber.tonumber((-x)%(-y)))
end
ctx:setround (decNumber.ROUND_CEILING)
a = one + one
b = zero
assert_nequal (a:remainder(b),a - b * a:divideinteger(b))
assert_nequal ((-a):remainder(b),(-a) - b * (-a):divideinteger(b))
assert_nequal (a:remainder(-b),a + b * a:divideinteger(-b))
assert_nequal ((-a):remainder(-b),(-a) + b * (-a):divideinteger(-b))
for i = 1,100 do
x = (-1^math.random(2)) * math.random(999999999)
y = (-1^math.random(2)) * math.random(999999999)
a = decNumber.tonumber(x)
b = decNumber.tonumber(y)
assert_equal (a:remainder(b),a - b * a:divideinteger(b))
assert_equal ((-a):remainder(b),(-a) - b * (-a):divideinteger(b))
assert_equal (a:remainder(-b),a + b * a:divideinteger(-b))
assert_equal ((-a):remainder(-b),(-a) + b * (-a):divideinteger(-b))
assert_equal (a%b,decNumber.tonumber(x%y))
assert_equal ((-a)%b,decNumber.tonumber((-x)%y))
assert_equal (a%(-b),decNumber.tonumber(x%(-y)))
assert_equal ((-a)%(-b),decNumber.tonumber((-x)%(-y)))
end
ctx:setround (decNumber.ROUND_FLOOR)
a = zero
b = zero
assert_nequal (a:remainder(b),a - b * a:divideinteger(b))
assert_nequal ((-a):remainder(b),(-a) - b * (-a):divideinteger(b))
assert_nequal (a:remainder(-b),a + b * a:divideinteger(-b))
assert_nequal ((-a):remainder(-b),(-a) + b * (-a):divideinteger(-b))
for i = 1,100 do
x = (-1^math.random(2)) * math.random(999999999)/2^math.random(99)
y = (-1^math.random(2)) * math.random(999999999)/2^math.random(99)
a = decNumber.tonumber(x)
b = decNumber.tonumber(y)
assert_equal (a:remainder(b),a - b * a:divideinteger(b))
assert_equal ((-a):remainder(b),(-a) - b * (-a):divideinteger(b))
assert_equal (a:remainder(-b),a + b * a:divideinteger(-b))
assert_equal ((-a):remainder(-b),(-a) + b * (-a):divideinteger(-b))
assert_qequal (a%b,decNumber.tonumber(x%y))
assert_qequal ((-a)%b,decNumber.tonumber((-x)%y))
assert_qequal (a%(-b),decNumber.tonumber(x%(-y)))
assert_qequal ((-a)%(-b),decNumber.tonumber((-x)%(-y)))
end
ctx:setround (decNumber.ROUND_CEILING)
a = zero
b = one + one
assert_equal (a:remainder(b),a - b * a:divideinteger(b))
assert_equal ((-a):remainder(b),(-a) - b * (-a):divideinteger(b))
assert_equal (a:remainder(-b),a + b * a:divideinteger(-b))
assert_equal ((-a):remainder(-b),(-a) + b * (-a):divideinteger(-b))
for i = 1,100 do
x = (-1^math.random(2)) * math.random(999999999)/2^math.random(99)
y = (-1^math.random(2)) * math.random(999999999)/2^math.random(99)
a = decNumber.tonumber(x)
b = decNumber.tonumber(y)
assert_equal (a:remainder(b),a - b * a:divideinteger(b))
assert_equal ((-a):remainder(b),(-a) - b * (-a):divideinteger(b))
assert_equal (a:remainder(-b),a + b * a:divideinteger(-b))
assert_equal ((-a):remainder(-b),(-a) + b * (-a):divideinteger(-b))
assert_qequal (a%b,decNumber.tonumber(x%y))
assert_qequal ((-a)%b,decNumber.tonumber((-x)%y))
assert_qequal (a%(-b),decNumber.tonumber(x%(-y)))
assert_qequal ((-a)%(-b),decNumber.tonumber((-x)%(-y)))
end
end
function mod_funcs:test_floor()
local ctx = decNumber.getcontext()
ctx:setdefault(decNumber.INIT_DECIMAL128)
-- explicit rounding ROUND_FLOOR
ctx:setround(decNumber.ROUND_FLOOR)
assert_equal (decNumber.tointegralvalue("17.50"), decNumber.tonumber "17")
assert_equal (decNumber.tointegralvalue("-17.50"), decNumber.tonumber "-18")
-- setup args
local p = decNumber.tonumber "1750"
local n = decNumber.tonumber "-1750"
local h = decNumber.tonumber "100"
-- divideinteger ~= floor, even with ctx:setround(decNumber.ROUND_FLOOR)
assert_equal (p:divideinteger(h), decNumber.tonumber "17")
assert_equal (n:divideinteger(h), decNumber.tonumber "-17")
-- restore rounding to the default
ctx:setround(decNumber.ROUND_HALF_EVEN)
-- now test our floor
assert_equal (p:floor(h), decNumber.tonumber "17")
assert_equal (n:floor(h), decNumber.tonumber "-18")
assert_equal (p:floor("10"), decNumber.tonumber "175")
assert_equal (n:floor("10"), decNumber.tonumber "-175")
-- identity tests
for i = 1,100 do
x = math.random(999999999)
y = math.random(999999999)
a = decNumber.tonumber(x)
b = decNumber.tonumber(y)
assert_equal (a%b, a - b * a:floor(b))
assert_equal ((-a)%(b), (-a) - b * (-a):floor(b))
assert_equal (a%(-b), a + b * a:floor(-b))
assert_equal ((-a)%(-b), (-a) + b * (-a):floor(-b))
end
for i = 1,100 do
x = (-1^math.random(2)) * math.random(999999999)
y = (-1^math.random(2)) * math.random(999999999)
a = decNumber.tonumber(x)
b = decNumber.tonumber(y)
assert_equal (a%b, a - b * a:floor(b))
assert_equal ((-a)%(b), (-a) - b * (-a):floor(b))
assert_equal (a%(-b), a + b * a:floor(-b))
assert_equal ((-a)%(-b), (-a) + b * (-a):floor(-b))
end
for i = 1,200 do
x = (-1^math.random(2)) * math.random(999999999)/2^math.random(29)
y = (-1^math.random(2)) * math.random(999999999)/2^math.random(29)
a = decNumber.tonumber(x)
b = decNumber.tonumber(y)
assert_equal (a%b, a - b * a:floor(b))
assert_equal ((-a)%(b), (-a) - b * (-a):floor(b))
assert_equal (a%(-b), a + b * a:floor(-b))
assert_equal ((-a)%(-b), (-a) + b * (-a):floor(-b))
end
for x,y in pairs {[0]=1, [1]=0} do
a = decNumber.tonumber(x)
b = decNumber.tonumber(y)
assert_nequal (a%b, a - b * a:floor(b))
assert_nequal ((-a)%(b), (-a) - b * (-a):floor(b))
assert_nequal (a%(-b), a + b * a:floor(-b))
assert_nequal ((-a)%(-b), (-a) + b * (-a):floor(-b))
end
for x,y in pairs {[0]=0, [1]=1} do
a = decNumber.tonumber(x)
b = decNumber.tonumber(y)
assert_nequal (a%b, a - b * a:floor(b))
assert_nequal ((-a)%(b), (-a) - b * (-a):floor(b))
assert_nequal (a%(-b), a + b * a:floor(-b))
assert_nequal ((-a)%(-b), (-a) + b * (-a):floor(-b))
end
end
local round_funcs = lunit.TestCase("Rounding")
function round_funcs:test()
-- decNumber.ROUND_CEILING round towards +infinity
-- decNumber.ROUND_UP round away from 0
-- decNumber.ROUND_HALF_UP 0.5 rounds up
-- decNumber.ROUND_HALF_EVEN 0.5 rounds to nearest even
-- decNumber.ROUND_HALF_DOWN 0.5 rounds down
-- decNumber.ROUND_DOWN round towards 0 (truncate)
-- decNumber.ROUND_FLOOR round towards -infinity local n = decNumber.tonumber "12.345"
ctx = decNumber.getcontext()
ctx:setdefault (decNumber.INIT_BASE)
ctx:setdigits (5)
local m = decNumber.tonumber "12.343"
local n = decNumber.tonumber "12.345"
local p = decNumber.tonumber "12.347"
local d = decNumber.tonumber ".01"
local q = decNumber.tonumber "2"
ctx:setround(decNumber.ROUND_CEILING)
assert_equal (m:quantize(d),decNumber.tonumber "12.35")
assert_equal ((-m):quantize(d),decNumber.tonumber "-12.34")
assert_equal (n:quantize(d),decNumber.tonumber "12.35")
assert_equal ((-n):quantize(d),decNumber.tonumber "-12.34")
assert_equal (p:quantize(d),decNumber.tonumber "12.35")
assert_equal ((-p):quantize(d),decNumber.tonumber "-12.34")
ctx:setround(decNumber.ROUND_UP)
assert_equal (m:quantize(d),decNumber.tonumber "12.35")
assert_equal ((-m):quantize(d),decNumber.tonumber "-12.35")
assert_equal (n:quantize(d),decNumber.tonumber "12.35")
assert_equal ((-n):quantize(d),decNumber.tonumber "-12.35")
assert_equal (p:quantize(d),decNumber.tonumber "12.35")
assert_equal ((-p):quantize(d),decNumber.tonumber "-12.35")
ctx:setround(decNumber.ROUND_HALF_UP)
assert_equal (m:quantize(d),decNumber.tonumber "12.34")
assert_equal ((-m):quantize(d),decNumber.tonumber "-12.34")
assert_equal (n:quantize(d),decNumber.tonumber "12.35")
assert_equal ((-n):quantize(d),decNumber.tonumber "-12.35")
assert_equal (p:quantize(d),decNumber.tonumber "12.35")
assert_equal ((-p):quantize(d),decNumber.tonumber "-12.35")
ctx:setround(decNumber.ROUND_HALF_EVEN)
assert_equal (m:quantize(d),decNumber.tonumber "12.34")
assert_equal ((-m):quantize(d),decNumber.tonumber "-12.34")
assert_equal (n:quantize(d),decNumber.tonumber "12.34")
assert_equal ((-n):quantize(d),decNumber.tonumber "-12.34")
assert_equal (p:quantize(d),decNumber.tonumber "12.35")
assert_equal ((-p):quantize(d),decNumber.tonumber "-12.35")
ctx:setround(decNumber.ROUND_HALF_DOWN)
assert_equal (m:quantize(d),decNumber.tonumber "12.34")
assert_equal ((-m):quantize(d),decNumber.tonumber "-12.34")
assert_equal (n:quantize(d),decNumber.tonumber "12.34")
assert_equal ((-n):quantize(d),decNumber.tonumber "-12.34")
assert_equal (p:quantize(d),decNumber.tonumber "12.35")
assert_equal ((-p):quantize(d),decNumber.tonumber "-12.35")
ctx:setround(decNumber.ROUND_DOWN)
assert_equal (m:quantize(d),decNumber.tonumber "12.34")
assert_equal ((-m):quantize(d),decNumber.tonumber "-12.34")
assert_equal (n:quantize(d),decNumber.tonumber "12.34")
assert_equal ((-n):quantize(d),decNumber.tonumber "-12.34")
assert_equal (p:quantize(d),decNumber.tonumber "12.34")
assert_equal ((-p):quantize(d),decNumber.tonumber "-12.34")
ctx:setround(decNumber.ROUND_FLOOR)
assert_equal (m:quantize(d),decNumber.tonumber "12.34")
assert_equal ((-m):quantize(d),decNumber.tonumber "-12.35")
assert_equal (n:quantize(d),decNumber.tonumber "12.34")
assert_equal ((-n):quantize(d),decNumber.tonumber "-12.35")
assert_equal (p:quantize(d),decNumber.tonumber "12.34")
assert_equal ((-p):quantize(d),decNumber.tonumber "-12.35")
end
function round_funcs:test_dup()
ctx = decNumber.getcontext()
dupc = ctx:duplicate()
dupc:setdefault (decNumber.INIT_BASE)
dupc:setdigits (5)
dupc:setround(decNumber.ROUND_CEILING)
dupe = dupc:duplicate()
dupe:setround(decNumber.ROUND_HALF_UP)
local m = decNumber.tonumber "12.343"
local n = decNumber.tonumber "12.345"
local p = decNumber.tonumber "12.347"
local d = decNumber.tonumber ".01"
local q = decNumber.tonumber "2"
dupc:setcontext()
assert_equal (m:quantize(d),decNumber.tonumber "12.35")
assert_equal ((-m):quantize(d),decNumber.tonumber "-12.34")
assert_equal (n:quantize(d),decNumber.tonumber "12.35")
assert_equal ((-n):quantize(d),decNumber.tonumber "-12.34")
assert_equal (p:quantize(d),decNumber.tonumber "12.35")
assert_equal ((-p):quantize(d),decNumber.tonumber "-12.34")
decNumber.setcontext(dupe)
assert_equal (m:quantize(d),decNumber.tonumber "12.34")
assert_equal ((-m):quantize(d),decNumber.tonumber "-12.34")
assert_equal (n:quantize(d),decNumber.tonumber "12.35")
assert_equal ((-n):quantize(d),decNumber.tonumber "-12.35")
assert_equal (p:quantize(d),decNumber.tonumber "12.35")
assert_equal ((-p):quantize(d),decNumber.tonumber "-12.35")
ctx:setcontext()
end
lunit.run()