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import py, os, sys
from .support import setup_make, soext
currpath = py.path.local(__file__).dirpath()
test_dct = str(currpath.join("operatorsDict"))+soext
def setup_module(mod):
setup_make("operators")
class AppTestOPERATORS:
spaceconfig = dict(usemodules=['_cppyy', '_rawffi', 'itertools'])
def setup_class(cls):
cls.w_N = cls.space.newint(5) # should be imported from the dictionary
cls.w_test_dct = cls.space.newtext(test_dct)
cls.w_operators = cls.space.appexec([], """():
import ctypes, _cppyy
_cppyy._post_import_startup()
return ctypes.CDLL(%r, ctypes.RTLD_GLOBAL)""" % (test_dct, ))
def teardown_method(self, meth):
import gc
gc.collect()
def test01_math_operators(self):
"""Test overloading of math operators"""
import _cppyy as cppyy
number = cppyy.gbl.number
assert (number(20) + number(10)) == number(30)
assert (number(20) + 10 ) == number(30)
assert (number(20) - number(10)) == number(10)
assert (number(20) - 10 ) == number(10)
assert (number(20) / number(10)) == number(2)
assert (number(20) / 10 ) == number(2)
assert (number(20) * number(10)) == number(200)
assert (number(20) * 10 ) == number(200)
assert (number(20) % 10 ) == number(0)
assert (number(20) % number(10)) == number(0)
assert (number(5) & number(14)) == number(4)
assert (number(5) | number(14)) == number(15)
assert (number(5) ^ number(14)) == number(11)
assert (number(5) << 2) == number(20)
assert (number(20) >> 2) == number(5)
def test02_unary_math_operators(self):
"""Test overloading of unary math operators"""
import _cppyy as cppyy
number = cppyy.gbl.number
n = number(20)
n += number(10)
n -= number(10)
n *= number(10)
n /= number(2)
assert n == number(100)
nn = -n;
assert nn == number(-100)
def test03_comparison_operators(self):
"""Test overloading of comparison operators"""
import _cppyy as cppyy
number = cppyy.gbl.number
assert (number(20) > number(10)) == True
assert (number(20) < number(10)) == False
assert (number(20) >= number(20)) == True
assert (number(20) <= number(10)) == False
assert (number(20) != number(10)) == True
assert (number(20) == number(10)) == False
def test04_boolean_operator(self):
"""Test implementation of operator bool"""
import _cppyy as cppyy
number = cppyy.gbl.number
n = number(20)
assert n
n = number(0)
assert not n
def test05_exact_types(self):
"""Test converter operators of exact types"""
import sys
import _cppyy as cppyy
if sys.hexversion >= 0x3000000:
pylong = int
else:
pylong = long
gbl = cppyy.gbl
o = gbl.operator_char_star()
assert o.m_str == 'operator_char_star'
assert str(o) == 'operator_char_star'
o = gbl.operator_const_char_star()
assert o.m_str == 'operator_const_char_star'
assert str(o) == 'operator_const_char_star'
o = gbl.operator_int(); o.m_int = -13
assert o.m_int == -13
assert int(o) == -13
o = gbl.operator_long(); o.m_long = 42
assert o.m_long == 42
assert pylong(o) == 42
o = gbl.operator_double(); o.m_double = 3.1415
assert o.m_double == 3.1415
assert float(o) == 3.1415
def test06_approximate_types(self):
"""Test converter operators of approximate types"""
import sys
import _cppyy as cppyy
if sys.hexversion >= 0x3000000:
pylong = int
maxvalue = sys.maxsize
else:
pylong = long
maxvalue = sys.maxint
gbl = cppyy.gbl
o = gbl.operator_short(); o.m_short = 256
assert o.m_short == 256
assert int(o) == 256
o = gbl.operator_unsigned_int(); o.m_uint = 2147483647 + 32
assert o.m_uint == 2147483647 + 32
assert pylong(o) == 2147483647 + 32
o = gbl.operator_unsigned_long();
o.m_ulong = maxvalue + 128
assert o.m_ulong == maxvalue + 128
assert pylong(o) == maxvalue + 128
o = gbl.operator_float(); o.m_float = 3.14
assert round(o.m_float - 3.14, 5) == 0.
assert round(float(o) - 3.14, 5) == 0.
def test07_virtual_operator_eq(self):
"""Test use of virtual bool operator=="""
import _cppyy as cppyy
b1 = cppyy.gbl.v_opeq_base(1)
b1a = cppyy.gbl.v_opeq_base(1)
b2 = cppyy.gbl.v_opeq_base(2)
b2a = cppyy.gbl.v_opeq_base(2)
assert b1 == b1
assert b1 == b1a
assert not b1 == b2
assert not b1 == b2a
assert b2 == b2
assert b2 == b2a
d1 = cppyy.gbl.v_opeq_derived(1)
d1a = cppyy.gbl.v_opeq_derived(1)
d2 = cppyy.gbl.v_opeq_derived(2)
d2a = cppyy.gbl.v_opeq_derived(2)
# derived operator== returns opposite
assert not d1 == d1
assert not d1 == d1a
assert d1 == d2
assert d1 == d2a
assert not d2 == d2
assert not d2 == d2a
# the following is a wee bit interesting due to python resolution
# rules on the one hand, and C++ inheritance on the other: python
# will never select the derived comparison b/c the call will fail
# to pass a base through a const derived&
assert b1 == d1
assert d1 == b1
assert not b1 == d2
assert not d2 == b1
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