test_math.py | searchcode

/IronPython_1_0/Src/Tests/test_math.py

#
Python | 284 lines | 225 code | 41 blank | 18 comment | 15 complexity | df0e509608000c45feaaf36e74a122e2 MD5 | raw file
Possible License(s): GPL-2.0, MPL-2.0-no-copyleft-exception, CPL-1.0, CC-BY-SA-3.0, BSD-3-Clause, ISC, AGPL-3.0, LGPL-2.1, Apache-2.0

#####################################################################################

#

#  Copyright (c) Microsoft Corporation. All rights reserved.

#

#  This source code is subject to terms and conditions of the Shared Source License

#  for IronPython. A copy of the license can be found in the License.html file

#  at the root of this distribution. If you can not locate the Shared Source License

#  for IronPython, please send an email to ironpy@microsoft.com.

#  By using this source code in any fashion, you are agreeing to be bound by

#  the terms of the Shared Source License for IronPython.

#

#  You must not remove this notice, or any other, from this software.

#

######################################################################################



from lib.assert_util import *

if is_cli:

    from System import Int64, Byte, Int16

    

    

Assert("pypypypypy" == 5 * "py")

Assert("pypypypypy" == "py" * 5)

Assert("pypypypy" == 2 * "py" * 2)



Assert(['py', 'py', 'py'] == ['py'] * 3)

Assert(['py', 'py', 'py'] == 3 * ['py'])



Assert(['py', 'py', 'py', 'py', 'py', 'py', 'py', 'py', 'py'] == 3 * ['py'] * 3)



Assert(3782452410 > 0)



# Complex tests

Assert((2+4j)/(1+1j) == (3+1j))

Assert((2+10j)/4.0 == (0.5+2.5j))

AreEqual(1j ** 2, (-1.0+0j))

AreEqual(pow(1j, 2), (-1.0+0j))

AreEqual(1+0j, 1)

AreEqual(1+0j, 1.0)

AreEqual(1+0j, 1L)

AreEqual((1+1j)/1L, (1+1j))

AreEqual((1j) + 1L, (1+1j))

if is_cli: AreEqual((1j) + Int64(), 1j)

AssertError(TypeError, (lambda:(1+1j)+[]))



AreEqual( (12j//5j), (2+0j))

AreEqual( (12.0+0j) // (5.0+0j), (2+0j) )

AreEqual( (12+0j) // (0+3j), 0j)

AreEqual( (0+12j) // (3+0j), 0j)

AssertError(TypeError, (lambda:2j // "astring"))

AssertError(ZeroDivisionError, (lambda:3.0 // (0j)))

AreEqual ( 3.0 // (2j), 0j)

AreEqual( 12 // (3j), 0j)

AreEqual( 25 % (5+3j), (10-9j))



AreEqual((12+3j)/3L, (4+1j))

AreEqual(3j - 5L, -5+3j)

if is_cli: AreEqual(3j - Int64(), 3j)

AssertError(TypeError, (lambda:3j-[]))

if is_cli: AreEqual(pow(5j, Int64()), (1+0j))

AreEqual(pow(5j, 0L), (1+0j))

AssertError(TypeError, (lambda:pow(5j, [])))

if is_cli: AreEqual(5j * Int64(), 0)

AreEqual(5j * 3L, 15j)

AssertError(TypeError, (lambda:(5j*[])))



AreEqual(pow(2, 1000000000, 2147483647 + 10), 511677409)

AreEqual(pow(2, 2147483647*2147483647, 2147483647*2147483647), 297528129805479806)



for i in range(1, 100, 7):

    l = long(i)

    Assert(type(i) == int)

    Assert(type(l) == long)

    for exp in [17, 2863, 234857, 1435435, 234636554, 2147483647]:

        lexp = long(exp)

        Assert(type(exp) == int)

        Assert(type(lexp) == long)

        for mod in [7, 5293, 23745, 232474276, 534634665, 2147483647]:

            lmod = long(mod)

            Assert(type(mod) == int)

            Assert(type(lmod) == long)



            ir = pow(i, exp, mod)

            lr = pow(l, lexp, lmod)



            AreEqual(ir, lr)

            

            ir = pow(i, 0, mod)

            lr = pow(l, 0L, lmod)



            AreEqual(ir, 1)

            AreEqual(lr, 1)



        AssertError(ValueError, pow, i, exp, 0)

        AssertError(ValueError, pow, l, lexp, 0L)



class powtest:

    def __pow__(self, exp, mod = None):

        return ("powtest.__pow__", exp, mod)

    def __rpow__(self, exp):

        return ("powtest.__rpow__", exp)



AreEqual(pow(powtest(), 1, 2), ("powtest.__pow__", 1, 2))

AreEqual(pow(powtest(), 3), ("powtest.__pow__", 3, None))

AreEqual(powtest() ** 4, ("powtest.__pow__", 4, None))

AreEqual(5 ** powtest(), ("powtest.__rpow__", 5))

AreEqual(pow(7, powtest()), ("powtest.__rpow__", 7))

AssertError(TypeError, pow, 1, powtest(), 7)



# Extensible Float tests

class XFloat(float): pass



AreEqual(XFloat(3.14), 3.14)

Assert(XFloat(3.14) < 4.0)

Assert(XFloat(3.14) > 3.0)

Assert(XFloat(3.14) < XFloat(4.0))

Assert(XFloat(3.14) > XFloat(3.0))



Assert(0xabcdef01 + (0xabcdef01<<32)+(0xabcdef01<<64) == 0xabcdef01abcdef01abcdef01)



Assert(round(-5.5) == (-6.0))

Assert(round(-5.0) == (-5.0))

Assert(round(-4.5) == (-5.0))

Assert(round(-4.0) == (-4.0))

Assert(round(-3.5) == (-4.0))

Assert(round(-3.0) == (-3.0))

Assert(round(-2.5) == (-3.0))

Assert(round(-2.0) == (-2.0))

Assert(round(-1.5) == (-2.0))

Assert(round(-1.0) == (-1.0))

Assert(round(-0.5) == (-1.0))

Assert(round(0.0) == (0.0))

Assert(round(0.5) == (1.0))

Assert(round(1.0) == (1.0))

Assert(round(1.5) == (2.0))

Assert(round(2.0) == (2.0))

Assert(round(2.5) == (3.0))

Assert(round(3.0) == (3.0))

Assert(round(3.5) == (4.0))

Assert(round(4.0) == (4.0))

Assert(round(4.5) == (5.0))

Assert(round(5.0) == (5.0))



x = ('a', 'b', 'c')

y = x

y *= 3

z = x

z += x

z += x

Assert(y == z)



Assert(1 << 32 == 4294967296L)

Assert(2 << 32 == (1 << 32) << 1)

Assert(((1 << 16) << 16) << 16 == 1 << 48)

Assert(((1 << 16) << 16) << 16 == 281474976710656L)



for i in [1, 10, 42, 1000000000, 34141235135135135, 13523525234523452345235235234523, 100000000000000000000000000000000000000]:

    Assert(~i == -i - 1)



Assert(7 ** 5 == 7*7*7*7*7)

Assert(7L ** 5L == 7L*7L*7L*7L*7L)

Assert(7 ** 5L == 7*7*7*7*7)

Assert(7L ** 5 == 7L*7L*7L*7L*7L)

Assert(1 ** 735293857239475 == 1)

Assert(0 ** 735293857239475 == 0)



# cpython tries to compute this, takes a long time to finish

if is_cli:

    AssertError(ValueError, (lambda: 10 ** 735293857239475))



Assert(2 ** 3.0 == 8.0)

Assert(2.0 ** 3 == 8.0)

Assert(4 ** 0.5 == 2.0)



nums = [3, 2.3, (2+1j), (2-1j), 1j, (-1j), 1]

for x in nums:

    for y in nums:

        z = x ** y



AreEqual(7.1//2.1, 3.0)

AreEqual(divmod(5.0, 2), (2.0,1.0))

AreEqual(divmod(5,2), (2,1))

AreEqual(divmod(-5,2), (-3,1))



AreEqual(True | False, True)

AreEqual(True | 4, 5)

AreEqual(True & 3, 1)

AreEqual(True + 3, 4)

AreEqual(True - 10, -9)

AreEqual(True * 8, 8)

AreEqual(True / 3, 0)

AreEqual(True ** 5, 1)

AreEqual(True % 2, 1)

AreEqual(True << 4, 1 << 4)

AreEqual(True >> 2, 0)

AreEqual(True ^ 3, 2)



if is_cli: 

    a = Byte()

    AreEqual(type(a), Byte)

    AreEqual(a, 0)



    b = a + Byte(1)

    AreEqual(b, 1)

    AreEqual(type(b), Byte)



    bprime = b * Byte(10)

    AreEqual(type(bprime), Byte)



    d = a + Byte(255)

    AreEqual(type(d), Byte)



    c = b + Byte(255)

    AreEqual(c, 256)

    AreEqual(type(c), Int16)



Assert(not (20 == False))

Assert(not (20 == None))

Assert(not (False == 20))

Assert(not (None == 20))

Assert(not (20 == 'a'))

Assert(not ('a' == 20))

Assert(not (2.5 == None))

Assert(not (20 == (2,3)))



AreEqual(long(1234793454934), 1234793454934)

AreEqual(4 ** -2, 0.0625)

AreEqual(4L ** -2, 0.0625)



AssertError(ZeroDivisionError, (lambda: (0 ** -1)))

AssertError(ZeroDivisionError, (lambda: (0.0 ** -1)))

AssertError(ZeroDivisionError, (lambda: (0 ** -1.0)))

AssertError(ZeroDivisionError, (lambda: (0.0 ** -1.0)))

AssertError(ZeroDivisionError, (lambda: (False ** -1)))

AssertError(ZeroDivisionError, (lambda: (0L ** -(2 ** 65))))

AssertError(ZeroDivisionError, (lambda: (0j ** -1)))

AssertError(ZeroDivisionError, (lambda: (0j ** 1j)))



def test_extensible_math():

    operators = ['__add__', '__sub__', '__pow__', '__mul__', '__div__', '__floordiv__', '__truediv__', '__mod__']

    opSymbol  = ['+',       '-',       '**',      '*',       '/',       '//',           '/',           '%']

    

    types = []

    for baseType in [(int, (100,2)), (long, (100L, 2L)), (float, (100.0, 2.0))]:

    # (complex, (100+0j, 2+0j)) - cpython doesn't call reverse ops for complex ?

        class prototype(baseType[0]):

            for op in operators:                

                exec '''def %s(self, other): 

    global opCalled

    opCalled.append('%s')

    return super(self.__class__, self).%s(other)



def %s(self, other): 

    global opCalled

    opCalled.append('%s')

    return super(self.__class__, self).%s(other)''' % (op, op, op, op[:2] + 'r' + op[2:], op[:2] + 'r' + op[2:], op[:2] + 'r' + op[2:])

        

        types.append( (prototype, baseType[1]) )

    

    global opCalled

    opCalled = []

    for op in opSymbol:

            for typeInfo in types:

                ex = typeInfo[0](typeInfo[1][0])

                ey = typeInfo[0](typeInfo[1][1])

                nx = typeInfo[0].__bases__[0](typeInfo[1][0])

                ny = typeInfo[0].__bases__[0](typeInfo[1][1])

                                

                #print 'nx %s ey' % op, type(nx), type(ey)

                res1 = eval('nx %s ey' % op)

                res2 = eval('nx %s ny' % op)

                AreEqual(res1, res2)

                AreEqual(len(opCalled), 1)

                opCalled = []

                

                #print 'ex %s ny' % op, type(ex), type(ny)

                res1 = eval('ex %s ny' % op)

                res2 = eval('nx %s ny' % op)

                AreEqual(res1, res2)

                AreEqual(len(opCalled), 1)

                opCalled = []

                



                        

test_extensible_math()