def testDictIndex(self):
""" test that an index using a dictionary works correctly
"""
index = {'a':0,'b':0,'c':0}
index2 = {'a':1,'b':0,'c':0}
assert(na.all(self.a.distribution[0,0,0,:] == self.a.distribution[index]) and \
na.all(self.a.distribution[1,0,0,:] == self.a.distribution[index2])), \
"Error getting with dict index"
def testGetCPT(self):
""" Violate abstraction and check that setCPT actually worked
correctly, by getting things out of the matrix
"""
assert(na.all(self.a.distribution[0, 0, 0, :] == \
self.a.distribution.cpt[0, 0, 0, :]) and \
na.all(self.a.distribution[1, 0, 0, :] == \
self.a.distribution.cpt[1, 0, 0, :])), \
"Error getting raw cpt"
def areArraysEqual(arr1, arr2):
"""
Are both `arr1` and `arr2` equal arrays?
Arguments can be regular NumPy arrays, chararray arrays or record
arrays (including nested record arrays). They are checked for type
and value equality.
"""
t1 = type(arr1)
t2 = type(arr2)
if not ((hasattr(arr1, 'dtype') and arr1.dtype == arr2.dtype) or
issubclass(t1, t2) or issubclass(t2, t1)):
return False
if numarray_imported:
if isinstance(arr1, nra.NestedRecArray):
arr1 = arr1.asRecArray()
if isinstance(arr2, nra.NestedRecArray):
arr2 = arr2.asRecArray()
if isinstance(arr1, nra.NestedRecord):
row = arr1.row
arr1 = arr1.array[row:row+1]
if isinstance(arr2, nra.NestedRecord):
row = arr2.row
arr2 = arr2.array[row:row+1]
if numarray_imported and isinstance(arr1, numarray.records.RecArray):
arr1Names = arr1._names
arr2Names = arr2._names
if arr1Names != arr2Names:
return False
for fieldName in arr1Names:
if not areArraysEqual(arr1.field(fieldName),
arr2.field(fieldName)):
return False
return True
if numarray_imported and isinstance(arr1, numarray.NumArray):
if arr1.shape != arr2.shape:
return False
if arr1.type() != arr2.type():
return False
# The lines below are equivalent
#return numarray.alltrue(arr1.flat == arr2.flat)
return numarray.all(arr1 == arr2)
if numarray_imported and isinstance(arr1, numarray.strings.CharArray):
if arr1.shape != arr2.shape:
return False
if arr1._type != arr2._type:
return False
return numarray.all(arr1 == arr2)
return numpy.all(arr1 == arr2)
def testNumSet(self):
""" test that a raw index of numbers can access and set a position in the
"""
self.a.distribution[0,0,0,:] = -1
self.a.distribution[1,0,0,:] = 100
self.a.distribution[1,1,0,:] = na.array([-2, -3])
assert(na.all(self.a.distribution[0,0,0,:] == na.array([-1, -1])) and \
na.all(self.a.distribution[1,0,0,:] == na.array([100, 100])) and \
na.all(self.a.distribution[1,1,0,:] == na.array([-2, -3]))), \
"Error Setting cpt with num indices"
def testDictSet(self):
""" test that an index using a dictionary can set a value within the cpt
"""
index = {'a':0,'b':0,'c':0}
index2 = {'a':1,'b':0,'c':0}
index3 = {'a':1,'b':1,'c':0}
self.a.distribution[index] = -1
self.a.distribution[index2] = 100
self.a.distribution[index3] = na.array([-2, -3])
assert(na.all(self.a.distribution[0,0,0,:] == na.array([-1, -1])) and \
na.all(self.a.distribution[1,0,0,:] == na.array([100, 100])) and \
na.all(self.a.distribution[1,1,0,:] == na.array([-2, -3]))), \
"Error setting cpt with dict"
def testBalancedDefault(self):
a = GenTestK(9)
b = GenTestK_Balanced(9)
t = numarray.all(a == b)
self.assert_(not t)
def testHorizontalLinesARGB32(self):
colors = (Qt.red, Qt.green, Qt.blue, Qt.white, Qt.black)
alpha = 0xff000000
red = 0x00ff0000
green = 0x0000ff00
blue = 0x000000ff
white = 0x00ffffff
black = 0x00000000
image = QImage(3, len(colors), QImage.Format_ARGB32)
painter = QPainter(image)
for i, color in enumerate(colors):
painter.setPen(color)
painter.drawLine(0, i, image.width(), i)
del painter
array = np.zeros((image.height(), image.width()), dtype=np.UInt32)
array[0, :] = alpha | red
array[1, :] = alpha | green
array[2, :] = alpha | blue
array[3, :] = alpha | white
array[4, :] = alpha | black
self.assertEqual(np.all(array == toNumpy(image)), True)
self.assertEqual(image == toQImage(array), True)
def testHorizontalLinesARGB32(self):
colors = (Qt.red, Qt.green, Qt.blue, Qt.white, Qt.black)
alpha = 0xff000000
red = 0x00ff0000
green = 0x0000ff00
blue = 0x000000ff
white = 0x00ffffff
black = 0x00000000
image = QImage(3, len(colors), QImage.Format_ARGB32)
painter = QPainter(image)
for i, color in enumerate(colors):
painter.setPen(color)
painter.drawLine(0, i, image.width(), i)
del painter
array = np.zeros((image.height(), image.width()), dtype=np.UInt32)
array[0,:] = alpha|red
array[1,:] = alpha|green
array[2,:] = alpha|blue
array[3,:] = alpha|white
array[4,:] = alpha|black
self.assertEqual(np.all(array == toNumpy(image)), True)
self.assertEqual(image == toQImage(array), True)
def testBalancedChange(self):
a = pickle.load(open(self.testbalancedname))
x = GenTestK_Balanced(9)
t = numarray.all(a == x)
self.assert_(t)
def testCubeChange(self):
a = pickle.load(open(self.testdataname))
x = GenTestK(9)
t = numarray.all(a == x)
self.assert_(t)
def testUnion(self):
""" test Union between two Tables """
a = Table(['a','b','c','d'],[2,3,4,5],range(2*3*4*5))
b = Table(['c','b','e'],[4,3,6],range(12*6))
ab,bb = a.union(b)
assert(ab.names_list == ['a','b','c','d','e'] and \
ab.shape == tuple([2,3,4,5,1]) and \
na.all(bb == na.transpose(b.cpt[...,na.NewAxis,na.NewAxis],axes=[3,1,0,4,2]))), \
""" union does not work ..."""
def testIMul(self):
""" test inplace multiplication """
b = Table(['c','b','e'],[4,3,6],range(12*6))
c = Table(['a','b','c','d','e'],[2,3,4,5,6],range(2*3*4*5*6))
bcpt = b.cpt[...,na.NewAxis,na.NewAxis]
bcpt.transpose([3,1,0,4,2])
res = bcpt*c.cpt
c *= b
assert (na.all(c.cpt == res)), \
" InPlace Multiplication does not work"
def testVerticalLinesIndexed8(self):
image = QImage(5, 3, QImage.Format_Indexed8)
image.setColorTable([qRgb(i, i, i) for i in range(256)])
for i in range(image.width()):
for j in range(image.height()):
image.setPixel(i, j, i)
array = np.zeros((image.height(), image.width()), dtype=np.UInt8)
for i in range(image.width()):
array[:, i] = i
self.assertEqual(np.all(array == toNumpy(image)), True)
self.assertEqual(image == toQImage(array), True)
def testVerticalLinesIndexed8(self):
image = QImage(5, 3, QImage.Format_Indexed8)
image.setColorTable([qRgb(i, i, i) for i in range(256)])
for i in range(image.width()):
for j in range(image.height()):
image.setPixel(i, j, i)
array = np.zeros((image.height(), image.width()), dtype=np.UInt8)
for i in range(image.width()):
array[:,i] = i
self.assertEqual(np.all(array == toNumpy(image)), True)
self.assertEqual(image == toQImage(array), True)
def testIDiv(self):
""" test inplace division """
b = Table(['c','b','e'],[4,3,6],range(12*6))
c = Table(['a','b','c','d','e'],[2,3,4,5,6],range(2*3*4*5*6))
bcpt = b.cpt[...,na.NewAxis,na.NewAxis]
bcpt.transpose([3,1,0,4,2])
res = c.cpt/bcpt
res[getnan(res)] = 0.0
c /= b
assert (na.all(c.cpt == res)), \
" InPlace Division does not work"
def testPrepareOther(self):
c = Table(['e','b'],[2,3],range(6))
d = Table(['a','b','c','d','e'],[2,3,2,2,2],range(3*2**4))
e = Table(['e','b','f'],[2,3,4],range(6*4))
src = Table(['s','r','c'],[2,3,4],range(24))
cr = Table(['c','r'],[4,3],range(12))
dc = d.prepareOther(c)
try:
d.prepareOther(e)
assert(0),""" this should produce an error..."""
except:
pass
cr_ = src.prepareOther(cr)
assert(dc.shape == tuple([1,3,1,1,2]) and \
na.all(dc[0,:,0,0,:] == na.transpose(c.cpt, axes=[1,0])) and \
cr_.shape == (1,3,4)), \
""" problem with prepareOther"""
def testVerticalLinesARGB32(self):
colors = (Qt.red, Qt.green, Qt.blue)
alpha = 0xff000000
red = 0x00ff0000
green = 0x0000ff00
blue = 0x000000ff
image = QImage(len(colors), 5, QImage.Format_ARGB32)
painter = QPainter(image)
for i, color in enumerate(colors):
painter.setPen(color)
painter.drawLine(i, 0, i, image.height())
del painter
array = np.zeros((image.height(), image.width()), dtype=np.UInt32)
array[:,0] = alpha|red
array[:,1] = alpha|green
array[:,2] = alpha|blue
self.assertEqual(np.all(array == toNumpy(image)), True)
self.assertEqual(image == toQImage(array), True)
def testVerticalLinesARGB32(self):
colors = (Qt.red, Qt.green, Qt.blue)
alpha = 0xff000000
red = 0x00ff0000
green = 0x0000ff00
blue = 0x000000ff
image = QImage(len(colors), 5, QImage.Format_ARGB32)
painter = QPainter(image)
for i, color in enumerate(colors):
painter.setPen(color)
painter.drawLine(i, 0, i, image.height())
del painter
array = np.zeros((image.height(), image.width()), dtype=np.UInt32)
array[:, 0] = alpha | red
array[:, 1] = alpha | green
array[:, 2] = alpha | blue
self.assertEqual(np.all(array == toNumpy(image)), True)
self.assertEqual(image == toQImage(array), True)
def test_one(self):
sound_start = 400
sound_stop = sound_start + len(self.sound)
self.sched.add(sound_start)
stream_out = []
target = numarray.array([0] * self.periodsize, numarray.Int16)
for i in range(100):
self.clock.set(self.periodsize * i, self.periodsize)
target *= 0
self.sched.render(target)
stream_out.extend(target)
stream_out = numarray.array(stream_out, type=numarray.Int16)
pre_write = stream_out[:sound_start]
self.assertEqual(numarray.any(pre_write), False)
written = stream_out[sound_start:sound_stop]
self.assertEqual(numarray.all(written), True)
post_write = stream_out[sound_stop:]
self.assertEqual(bool(numarray.any(post_write)), False)
def fit(x, y, sig=None):
#Given a set of data points x, y,
#with individual standard deviations sig,
#fit them to a straight line y = a + bx by minimizing chi-sq.
#Returned are a, b and their respective probable uncertainties siga and sigb,
#the chi-square chi2, and the scatter sigdat.
#If mwt=0 on input, then the standard deviations are assumed to be unavailable:
#the normalization of chi2 is to unit standard deviation on all points.
if sig is None or N.all(sig == 1.0):
mwt=False
else:
mwt=True
sx=0.0
sy=0.0
st2=0.0
b=0.0
ndata = len(x)
if mwt:
#Accumulate sums ...
ss=0.0
for i in range(ndata):
#...with weights
wt=1.0/sig[i]**2
ss += wt
sx += x[i]*wt
sy += y[i]*wt
else:
for i in range(ndata):
#...or without weights.
sx += x[i]
sy += y[i]
ss=ndata
sxoss=sx/ss
if mwt:
for i in range(ndata):
t=(x[i]-sxoss)/sig[i]
st2 += t*t
b += t*y[i]/sig[i]
else:
for i in range(ndata):
t=x[i]-sxoss
st2 += t*t
b += t*y[i]
b /= st2
#Solve for a, b, siga, and sigb.
a=(sy-sx*b)/ss
siga=sqrt((1.0+sx*sx/(ss*st2))/ss)
sigb=sqrt(1.0/st2)
#Calculate chi2.
chi2=0.0
if mwt:
for i in range(ndata):
chi2 += ((y[i] - a - b*x[i]) / sig[i])**2
else:
#For unweighted data evaluate typical sig using chi2,
#and adjust the standard deviations.
for i in range(ndata):
chi2 += (y[i] - a - b*x[i])**2
sigdat=sqrt(chi2/(ndata-2))
siga *= sigdat
sigb *= sigdat
return a, b, siga, sigb, chi2
def test_write(self):
scheduler.RESAMPLE = self._scheduler_RESAMPLE
stream_out = buffering.Sound(1000)
self.writer.write(stream_out)
self.assertEqual(numarray.all(self.sound[:100]), True)
self.assertEqual(numarray.any(self.sound[100:]), False)
def testSetCPT(self):
""" Violate abstraction and check that we can actually set elements.
"""
self.a.distribution.cpt[0, 1, 0, :] = na.array([4, 5])
assert(na.all(self.a.distribution[0, 1, 0, :] == na.array([4, 5]))), \
"Error setting the array when violating abstraction"
def testNumIndex(self):
""" test that a raw index of numbers works correctly
"""
assert(na.all(self.a.distribution[0, :, 0, :] == self.a.distribution[0, :, 0, :]) and \
na.all(self.a.distribution[1, 0, 0, :] == self.a.distribution[1, 0, 0, :])), \
"Error getting item with num indices"
