def testInit(self):
self.assertRaises(ValueError, intbv, 15, min=-8, max=8)
x = modbv(15, min=-8, max=8)
self.assertEqual(-1, x)
# Arbitrary boundraries support (no exception)
modbv(5, min=-3, max=8)
def testInit(self):
self.assertRaises(ValueError, intbv, 15, min=-8, max=8)
x = modbv(15, min=-8, max=8)
self.assertEqual(-1, x)
# Arbitrary boundraries support (no exception)
modbv(5, min=-3, max=8)
def testInit(self):
with pytest.raises(ValueError):
intbv(15, min=-8, max=8)
x = modbv(15, min=-8, max=8)
assert -1 == x
# Arbitrary boundraries support (no exception)
modbv(5, min=-3, max=8)
def testInit(self):
with pytest.raises(ValueError):
intbv(15, min=-8, max=8)
x = modbv(15, min=-8, max=8)
assert -1 == x
# Arbitrary boundraries support (no exception)
modbv(5, min=-3, max=8)
def testGetItem(self):
self.BuildTestSeqs()
#Testing for the __getItem__ function
for i in self.seqi:
ti = modbv(i)
cti = modbv(~i)
for n in range(len(bin(i))):
chk = ((i >> n) & 1)
res = ti[n]
resv = cti[n]
assert type(res) == bool
assert type(resv) == bool
assert res == chk
assert resv == chk ^ 1
def testGetItem(self):
self.BuildTestSeqs()
# Testing for the __getItem__ function
for i in self.seqi:
ti = modbv(i)
cti = modbv(~i)
for n in range(len(bin(i))):
chk = (i >> n) & 1
res = ti[n]
resv = cti[n]
assert type(res) == bool
assert type(resv) == bool
assert res == chk
assert resv == chk ^ 1
def testGetSlice(self):
self.BuildTestSeqs()
#Testing for slice ranged, both closed
for i in self.seqi:
ti = modbv(i)
cti = modbv(~i)
leni = len(bin(i))
for n in (range(leni)):
s = randrange(-leni, leni)
f = randrange(-leni, leni)
try:
val = ti[f:s]
except ValueError:
assert (f <= s) | (s <= 0)
else:
chkt = (i >> s) & (2**(f - s) - 1)
assert val == chkt
assert (val.max, val.min) == (2**(f - s), 0)
def testGetSlice(self):
self.BuildTestSeqs()
# Testing for slice ranged, both closed
for i in self.seqi:
ti = modbv(i)
cti = modbv(~i)
leni = len(bin(i))
for n in range(leni):
s = randrange(-leni, leni)
f = randrange(-leni, leni)
try:
val = ti[f:s]
except ValueError:
assert (f <= s) | (s <= 0)
else:
chkt = (i >> s) & (2 ** (f - s) - 1)
assert val == chkt
assert (val.max, val.min) == (2 ** (f - s), 0)
def testGetSliceOpen(self):
self.BuildTestSeqs()
#Testing for slice ranged, one of them open
for i in self.seqi:
ti = modbv(i)
cti = modbv(~i)
leni = len(bin(i))
assert ti + cti == -1
for n in (range(leni)):
s = randrange(leni)
f = randrange(1, leni)
chkf = (i) & (2**(f) - 1)
chks = (i >> s)
vals, cvals = ti[:s], cti[:s]
valf, cvalf = ti[f:], cti[f:]
assert vals + cvals == -1
#assert valf+cvalf == -1 ---test fails- why???
assert vals == modbv(chks)
assert valf == modbv(chkf)
def testGetSliceOpen(self):
self.BuildTestSeqs()
# Testing for slice ranged, one of them open
for i in self.seqi:
ti = modbv(i)
cti = modbv(~i)
leni = len(bin(i))
assert ti + cti == -1
for n in range(leni):
s = randrange(leni)
f = randrange(1, leni)
chkf = (i) & (2 ** (f) - 1)
chks = i >> s
vals, cvals = ti[:s], cti[:s]
valf, cvalf = ti[f:], cti[f:]
assert vals + cvals == -1
# assert valf+cvalf == -1 ---test fails- why???
assert vals == modbv(chks)
assert valf == modbv(chkf)
def testWrap(self):
x = modbv(0, min=-8, max=8)
x[:] = x + 1
assert 1 == x
x[:] = x + 2
assert 3 == x
x[:] = x + 5
assert -8 == x
x[:] = x + 1
assert -7 == x
x[:] = x - 5
assert 4 == x
x[:] = x - 4
assert 0 == x
x[:] += 15
x[:] = x - 1
assert -2 == x
def testWrap(self):
x = modbv(0, min=-8, max=8)
x[:] = x + 1
self.assertEqual(1, x)
x[:] = x + 2
self.assertEqual(3, x)
x[:] = x + 5
self.assertEqual(-8, x)
x[:] = x + 1
self.assertEqual(-7, x)
x[:] = x - 5
self.assertEqual(4, x)
x[:] = x - 4
self.assertEqual(0, x)
x[:] += 15
x[:] = x - 1
self.assertEqual(-2, x)
def testWrap(self):
x = modbv(0, min=-8, max=8)
x[:] = x + 1
self.assertEqual(1, x)
x[:] = x + 2
self.assertEqual(3, x)
x[:] = x + 5
self.assertEqual(-8, x)
x[:] = x + 1
self.assertEqual(-7, x)
x[:] = x - 5
self.assertEqual(4, x)
x[:] = x - 4
self.assertEqual(0, x)
x[:] += 15
x[:] = x - 1
self.assertEqual(-2, x)
def testWrap(self):
x = modbv(0, min=-8, max=8)
x[:] = x + 1
assert 1 == x
x[:] = x + 2
assert 3 == x
x[:] = x + 5
assert -8 == x
x[:] = x + 1
assert -7 == x
x[:] = x - 5
assert 4 == x
x[:] = x - 4
assert 0 == x
x[:] += 15
x[:] = x - 1
assert -2 == x
def testSetSlice(self):
self.BuildTestSeqs()
self.seqi.extend(self.seqj)
#Test the bit slice setting wrap around behaviour
for i in range(1, len(self.seqi)):
lenp = len(bin(self.seqi[i - 1]))
ti = modbv(self.seqi[i - 1])[lenp:]
maxp = 2**lenp
vali = self.seqi[i]
s = randrange(lenp - 1)
f = randrange(s, lenp)
valp = self.seqi[i - 1]
maxval = (1 << (f - s)) - 1
try:
ti[f:s] = vali
except ValueError:
assert maxval < vali
else:
bitmask = (((2**f - 1) >> s) << s)
valp = valp - (valp & bitmask)
valp = (valp + ((vali << s) % maxp)) % maxp
assert valp == ti
def testSetSlice(self):
self.BuildTestSeqs()
self.seqi.extend(self.seqj)
# Test the bit slice setting wrap around behaviour
for i in range(1, len(self.seqi)):
lenp = len(bin(self.seqi[i - 1]))
ti = modbv(self.seqi[i - 1])[lenp:]
maxp = 2 ** lenp
vali = self.seqi[i]
s = randrange(lenp - 1)
f = randrange(s, lenp)
valp = self.seqi[i - 1]
maxval = (1 << (f - s)) - 1
try:
ti[f:s] = vali
except ValueError:
assert maxval < vali
else:
bitmask = ((2 ** f - 1) >> s) << s
valp = valp - (valp & bitmask)
valp = (valp + ((vali << s) % maxp)) % maxp
assert valp == ti