def test_11_c(self):
"""TestRepCodeTo68Cython.test_11_c(): to68() -1e40 is min Cython."""
# print()
# print('-1e40 = 0x{:08X} {:s}'.format(cRepCode.to68(-1e40), self.splitBits68(cRepCode.to68(-1e40))))
# print(' Min = 0x{:08X} {:g}'.format(cRepCode.to68(RepCode.minValue(68)), RepCode.minValue(68)))
self.assertEqual(cRepCode.to68(-1e40),
cRepCode.to68(RepCode.minValue(68)))
def test_time_00(self):
"""TestRepCodeTo68Time.test_time_00(): tests conversion of 1e6 of same word - Cython code."""
i = 0
num = 1e6
tS = time.clock()
while i < num:
cRepCode.to68(153.0)
i += 1
self.writeTimeToStdErr(tS, 68, num)
def test_time_10(self):
"""TestRepCodeTo68Time.test_time_10(): tests conversion of 1e5 random words - Cython code."""
i = 0
num = 1e5
tS = time.clock()
myMin, myMax = RepCode.minMaxValue(68)
while i < num:
val = myMin + random.random() * (myMax - myMin)
cRepCode.to68(val)
i += 1
self.writeTimeToStdErr(tS, 68, num)
def test_10_c(self):
"""TestRepCodeTo68Cython.test_10_c(): to68() <3.50325e-46 is zero Cython."""
v = 3.50325e-46
# print()
# print('1e-40 = 0x{:08X} {:s} {:g}'.format(
# cRepCode.to68(v),
# self.splitBits68(cRepCode.to68(v)),
# cRepCode.from68(cRepCode.to68(v))),
# )
self.assertEqual(0x00000001, cRepCode.to68(v))
# Now reduce v slightly and we should see zero
self.assertEqual(cRepCode.to68(0.99 * v), cRepCode.to68(0.0))
def test_04(self):
"""TestRepCodeTo68LowExponent.test_04(): Special exponent tests, full range."""
for e in range(-150, 128, 1):
rcWord = pRepCode.to68(math.ldexp(0.5, e))
self.assertEqual((0.5, e), math.frexp(pRepCode.from68(rcWord)))
for e in range(-150, 128, 1):
rcWord = cRepCode.to68(math.ldexp(0.5, e))
self.assertEqual((0.5, e), math.frexp(cRepCode.from68(rcWord)))
for e in range(-150, 128, 1):
rcWord = RepCode.to68(math.ldexp(0.5, e))
self.assertEqual((0.5, e), math.frexp(RepCode.from68(rcWord)))
def test_02_c(self):
"""TestRepCodeTo68Cython.test_02_c(): to68(-153.0) -> 0xBBB38000 Cython."""
v = -153.0
# e = cRepCode.to68(v)
# print()
# print('1e-40 = 0x{:08X} {:s} {:g}'.format(
# e,
# self.splitBits68(cRepCode.to68(v)),
# cRepCode.from68(cRepCode.to68(v))),
# )
self.assertEqual(cRepCode.to68(v), 0xBBB38000)
def test_time_02(self):
"""TestRepCodeTo68Time.test_time_02(): 1e6 same word Cython time c.f. Python:"""
i = 0
num = 1e6
tS = time.clock()
while i < num:
cRepCode.to68(153.0)
i += 1
tE_C = time.clock() - tS
sys.stderr.write(' Cython: %.3f rate %8.0f words/S' %
(tE_C, num / tE_C))
i = 0
tS = time.clock()
while i < num:
pRepCode.to68(153.0)
i += 1
tE_P = time.clock() - tS
sys.stderr.write(' Python: %.3f rate %8.f words/S' %
(tE_P, num / tE_P))
sys.stderr.write(' %.1f%% (x%.1f) ' % ((100.0 *
(tE_C / tE_P)), tE_P / tE_C))
def test_03(self):
"""TestRepCodeTo68LowExponent.test_03(): Special exponent tests."""
# print()
for e in (-151, -150, -129, -128, 0):
rcWord = pRepCode.to68(math.ldexp(0.5, e))
# print(
# 'pRepCode.to68(math.ldexp(0.5, {:4d}))'.format(e),
# '0x{:08x}->{:s}'.format(rcWord, math.frexp(pRepCode.from68(rcWord)))
# )
#print()
for e in (-151, -150, -129, -128, 0):
rcWord = cRepCode.to68(math.ldexp(0.5, e))
def test_05(self):
"""TestRepCodeTo68LowExponent.test_02(): to68() exponent <-150 made to zero."""
self.assertEqual(0x40000000, pRepCode.to68(math.ldexp(0.5, -151)))
self.assertEqual(0x40000000, cRepCode.to68(math.ldexp(0.5, -151)))
self.assertEqual(0x40000000, RepCode.to68(math.ldexp(0.5, -151)))
def test_10(self):
"""TestRepCodeTo68PyCy.test_10(): to68() -999.25 -> 0xBA831800"""
self.assertEqual('{:b}'.format(pRepCode.to68(-999.25)),
'{:b}'.format(cRepCode.to68(-999.25)))
self.assertEqual(pRepCode.to68(-999.25), cRepCode.to68(-999.25))
self.assertEqual(RepCode.to68(-999.25), 0xBA831800)
def test_12_c(self):
"""TestRepCodeTo68Cython.test_12_c(): to68() +1e40 is max Cython."""
self.assertEqual(cRepCode.to68(+1e40),
cRepCode.to68(RepCode.maxValue(68)))
def test_03_c(self):
"""TestRepCodeTo68Cython.test_03__(): to68(0.0) -> 0x40000000 Cython."""
self.assertEqual(cRepCode.to68(0.0), 0x40000000)
def test_01_c(self):
"""TestRepCodeTo68Cython.test_01_c(): to68(153.0) -> 0x444C8000 Cython ."""
self.assertEqual(cRepCode.to68(153.0), 0x444C8000)
def time_cRepCode_to(self):
cRepCode.to68(153.0)
def test_to_minus_153_c(self):
"""TestRepCodeToFrom68CPython.test_02_c(): to68(0xBBB38000) -> -153.0 CPython."""
result = cRepCode.to68(-153.0)
self.assertEqual(result, 0xBBB38000)
