def test_30(self):
"""TestRepCodeFrom68.test_30(): from68(0x3fc00000) -> 0.25 (Defect found during FrameSet testing)."""
self.assertEqual(RepCode.from68(0x40000000), 0.0)
v = 0x3fc00000
# print()
# print('0x{:08x}'.format(v), self.splitBits68(v), RepCode.from68(v))
self.assertEqual(RepCode.from68(v), 0.25)
def test_time_03(self):
"""TestRepCodeFrom68Time.test_time_03(): tests conversion of 1e6 of same word - RepCode.from68 code."""
i = 0
num = 1e6
tS = time.clock()
while i < num:
RepCode.from68(0xBBB38000)
i += 1
self.writeTimeToStdErr(tS, 68, num)
def test_00(self):
"""TestRepCodeTo68LowExponent.test_30(): to68(0.0) -> 0x40000000 and to68(0.25) -> 0x3fc00000 (Defect found during FrameSet testing)."""
# print()
# print('pRepCode.to68(math.ldexp(-1, -128))', '0x{:08x}'.format(pRepCode.to68(math.ldexp(-1, -128))))
# print('pRepCode.to68(math.ldexp(+1, -128))', '0x{:08x}'.format(pRepCode.to68(math.ldexp(1, -128))))
self.assertEqual(RepCode.to68(0.0), 0x40000000)
self.assertEqual(RepCode.to68(0.25), 0x3fc00000)
self.assertEqual(RepCode.from68(0x40000000), 0.0)
# print('0x3fc00000', RepCode.from68(0x3fc00000))
self.assertEqual(RepCode.from68(0x3fc00000), 0.25)
def test_max(self):
"""TestRepCodeFrom68.test_max(): max by bit stuffing."""
myWord = 0x7FFFFFFF
f = RepCode.from68(myWord)
#m,e = math.frexp(f)
#print
#print 'Max:', f
#print 'm,e:', m,e
#print 'm: shifted 23', m * (1<<23)
#print 'm: 1.0 / (1.0 - m)', 1.0 / (1.0 - m)
#print ' 2**23', 2**23
#print ' 1<<23', 1<<23
#print('dir(RepCode)')
#print(dir(RepCode))
self.assertEqual(RepCode.from68(myWord), RepCode.maxValue(68))
self.assertEqual(cRepCode.from68(myWord), RepCode.maxValue(68))
self.assertEqual(pRepCode.from68(myWord), RepCode.maxValue(68))
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_min(self):
"""TestRepCodeFrom68.test_min(): min by bit stuffing."""
myWord = 1
myWord <<= 8
myWord |= 1
myWord <<= 23
# 0 exponent
myWord = 0x80000000
#print
#print RepCode.from68(myWord)
self.assertEqual(RepCode.from68(myWord), RepCode.minValue(68))
self.assertEqual(pRepCode.from68(myWord), RepCode.minValue(68))
self.assertEqual(cRepCode.from68(myWord), RepCode.minValue(68))
def test_02_02(self):
"""TestRepCodeTo68LowExponent.test_02_02(): from68() mantissa depression - RepCode module."""
# print('0x00000001', RepCode.from68(0x00000001))
self.assertEqual((0.5, -150), math.frexp(RepCode.from68(0x00000001)))
self.assertEqual((0.5, -149), math.frexp(RepCode.from68(0x00000002)))
self.assertEqual((0.5, -148), math.frexp(RepCode.from68(0x00000004)))
self.assertEqual((0.5, -147), math.frexp(RepCode.from68(0x00000008)))
self.assertEqual((0.5, -146), math.frexp(RepCode.from68(0x00000010)))
self.assertEqual((0.5, -145), math.frexp(RepCode.from68(0x00000020)))
self.assertEqual((0.5, -144), math.frexp(RepCode.from68(0x00000040)))
self.assertEqual((0.5, -143), math.frexp(RepCode.from68(0x00000080)))
self.assertEqual((0.5, -142), math.frexp(RepCode.from68(0x00000100)))
self.assertEqual((0.5, -141), math.frexp(RepCode.from68(0x00000200)))
self.assertEqual((0.5, -140), math.frexp(RepCode.from68(0x00000400)))
self.assertEqual((0.5, -139), math.frexp(RepCode.from68(0x00000800)))
self.assertEqual((0.5, -138), math.frexp(RepCode.from68(0x00001000)))
self.assertEqual((0.5, -137), math.frexp(RepCode.from68(0x00002000)))
self.assertEqual((0.5, -136), math.frexp(RepCode.from68(0x00004000)))
self.assertEqual((0.5, -135), math.frexp(RepCode.from68(0x00008000)))
self.assertEqual((0.5, -134), math.frexp(RepCode.from68(0x00010000)))
self.assertEqual((0.5, -133), math.frexp(RepCode.from68(0x00020000)))
self.assertEqual((0.5, -132), math.frexp(RepCode.from68(0x00040000)))
self.assertEqual((0.5, -131), math.frexp(RepCode.from68(0x00080000)))
self.assertEqual((0.5, -130), math.frexp(RepCode.from68(0x00100000)))
self.assertEqual((0.5, -129), math.frexp(RepCode.from68(0x00200000)))
self.assertEqual((0.5, -128), math.frexp(RepCode.from68(0x00400000)))
def test_04(self):
"""TestRepCodeFrom68.test_04(): from68(0x40000000) -> 0.0."""
self.assertEqual(RepCode.from68(0x40000000), 0.0)
def test_02(self):
"""TestRepCodeFrom68.test_02(): from68(0xBBB38000) -> -153.0."""
self.assertEqual(RepCode.from68(0xBBB38000), -153.0)
def test_01(self):
"""TestRepCodeFrom68.test_01(): from68(0x444C8000) -> 153.0."""
self.assertEqual(RepCode.from68(0x444C8000), 153.0)
def time_RepCode_from(self):
RepCode.from68(0x444C8000)
