Viewing file:  test_unicode.py (10.99 KB) -rw-r--r--
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import sys
from numpy.testing import *
from numpy.core import *
# Guess the UCS length for this python interpreter
if len(buffer(u'u')) == 4:
ucs4 = True
else:
ucs4 = False
# Value that can be represented in UCS2 interpreters
ucs2_value = u'\uFFFF'
# Value that cannot be represented in UCS2 interpreters (but can in UCS4)
ucs4_value = u'\U0010FFFF'
############################################################
# Creation tests
############################################################
class create_zeros(object):
"""Check the creation of zero-valued arrays"""
def content_check(self, ua, ua_scalar, nbytes):
# Check the length of the unicode base type
self.assert_(int(ua.dtype.str[2:]) == self.ulen)
# Check the length of the data buffer
self.assert_(len(ua.data) == nbytes)
# Small check that data in array element is ok
self.assert_(ua_scalar == u'')
# Encode to ascii and double check
self.assert_(ua_scalar.encode('ascii') == '')
# Check buffer lengths for scalars
if ucs4:
self.assert_(len(buffer(ua_scalar)) == 0)
else:
self.assert_(len(buffer(ua_scalar)) == 0)
def test_zeros0D(self):
"""Check creation of 0-dimensional objects"""
ua = zeros((), dtype='U%s' % self.ulen)
self.content_check(ua, ua[()], 4*self.ulen)
def test_zerosSD(self):
"""Check creation of single-dimensional objects"""
ua = zeros((2,), dtype='U%s' % self.ulen)
self.content_check(ua, ua[0], 4*self.ulen*2)
self.content_check(ua, ua[1], 4*self.ulen*2)
def test_zerosMD(self):
"""Check creation of multi-dimensional objects"""
ua = zeros((2,3,4), dtype='U%s' % self.ulen)
self.content_check(ua, ua[0,0,0], 4*self.ulen*2*3*4)
self.content_check(ua, ua[-1,-1,-1], 4*self.ulen*2*3*4)
class test_create_zeros_1(create_zeros, TestCase):
"""Check the creation of zero-valued arrays (size 1)"""
ulen = 1
class test_create_zeros_2(create_zeros, TestCase):
"""Check the creation of zero-valued arrays (size 2)"""
ulen = 2
class test_create_zeros_1009(create_zeros, TestCase):
"""Check the creation of zero-valued arrays (size 1009)"""
ulen = 1009
class create_values(object):
"""Check the creation of unicode arrays with values"""
def content_check(self, ua, ua_scalar, nbytes):
# Check the length of the unicode base type
self.assert_(int(ua.dtype.str[2:]) == self.ulen)
# Check the length of the data buffer
self.assert_(len(ua.data) == nbytes)
# Small check that data in array element is ok
self.assert_(ua_scalar == self.ucs_value*self.ulen)
# Encode to UTF-8 and double check
self.assert_(ua_scalar.encode('utf-8') == \
(self.ucs_value*self.ulen).encode('utf-8'))
# Check buffer lengths for scalars
if ucs4:
self.assert_(len(buffer(ua_scalar)) == 4*self.ulen)
else:
if self.ucs_value == ucs4_value:
# In UCS2, the \U0010FFFF will be represented using a
# surrogate *pair*
self.assert_(len(buffer(ua_scalar)) == 2*2*self.ulen)
else:
# In UCS2, the \uFFFF will be represented using a
# regular 2-byte word
self.assert_(len(buffer(ua_scalar)) == 2*self.ulen)
def test_values0D(self):
"""Check creation of 0-dimensional objects with values"""
ua = array(self.ucs_value*self.ulen, dtype='U%s' % self.ulen)
self.content_check(ua, ua[()], 4*self.ulen)
def test_valuesSD(self):
"""Check creation of single-dimensional objects with values"""
ua = array([self.ucs_value*self.ulen]*2, dtype='U%s' % self.ulen)
self.content_check(ua, ua[0], 4*self.ulen*2)
self.content_check(ua, ua[1], 4*self.ulen*2)
def test_valuesMD(self):
"""Check creation of multi-dimensional objects with values"""
ua = array([[[self.ucs_value*self.ulen]*2]*3]*4, dtype='U%s' % self.ulen)
self.content_check(ua, ua[0,0,0], 4*self.ulen*2*3*4)
self.content_check(ua, ua[-1,-1,-1], 4*self.ulen*2*3*4)
class test_create_values_1_ucs2(create_values, TestCase):
"""Check the creation of valued arrays (size 1, UCS2 values)"""
ulen = 1
ucs_value = ucs2_value
class test_create_values_1_ucs4(create_values, TestCase):
"""Check the creation of valued arrays (size 1, UCS4 values)"""
ulen = 1
ucs_value = ucs4_value
class test_create_values_2_ucs2(create_values, TestCase):
"""Check the creation of valued arrays (size 2, UCS2 values)"""
ulen = 2
ucs_value = ucs2_value
class test_create_values_2_ucs4(create_values, TestCase):
"""Check the creation of valued arrays (size 2, UCS4 values)"""
ulen = 2
ucs_value = ucs4_value
class test_create_values_1009_ucs2(create_values, TestCase):
"""Check the creation of valued arrays (size 1009, UCS2 values)"""
ulen = 1009
ucs_value = ucs2_value
class test_create_values_1009_ucs4(create_values, TestCase):
"""Check the creation of valued arrays (size 1009, UCS4 values)"""
ulen = 1009
ucs_value = ucs4_value
############################################################
# Assignment tests
############################################################
class assign_values(object):
"""Check the assignment of unicode arrays with values"""
def content_check(self, ua, ua_scalar, nbytes):
# Check the length of the unicode base type
self.assert_(int(ua.dtype.str[2:]) == self.ulen)
# Check the length of the data buffer
self.assert_(len(ua.data) == nbytes)
# Small check that data in array element is ok
self.assert_(ua_scalar == self.ucs_value*self.ulen)
# Encode to UTF-8 and double check
self.assert_(ua_scalar.encode('utf-8') == \
(self.ucs_value*self.ulen).encode('utf-8'))
# Check buffer lengths for scalars
if ucs4:
self.assert_(len(buffer(ua_scalar)) == 4*self.ulen)
else:
if self.ucs_value == ucs4_value:
# In UCS2, the \U0010FFFF will be represented using a
# surrogate *pair*
self.assert_(len(buffer(ua_scalar)) == 2*2*self.ulen)
else:
# In UCS2, the \uFFFF will be represented using a
# regular 2-byte word
self.assert_(len(buffer(ua_scalar)) == 2*self.ulen)
def test_values0D(self):
"""Check assignment of 0-dimensional objects with values"""
ua = zeros((), dtype='U%s' % self.ulen)
ua[()] = self.ucs_value*self.ulen
self.content_check(ua, ua[()], 4*self.ulen)
def test_valuesSD(self):
"""Check assignment of single-dimensional objects with values"""
ua = zeros((2,), dtype='U%s' % self.ulen)
ua[0] = self.ucs_value*self.ulen
self.content_check(ua, ua[0], 4*self.ulen*2)
ua[1] = self.ucs_value*self.ulen
self.content_check(ua, ua[1], 4*self.ulen*2)
def test_valuesMD(self):
"""Check assignment of multi-dimensional objects with values"""
ua = zeros((2,3,4), dtype='U%s' % self.ulen)
ua[0,0,0] = self.ucs_value*self.ulen
self.content_check(ua, ua[0,0,0], 4*self.ulen*2*3*4)
ua[-1,-1,-1] = self.ucs_value*self.ulen
self.content_check(ua, ua[-1,-1,-1], 4*self.ulen*2*3*4)
class test_assign_values_1_ucs2(assign_values, TestCase):
"""Check the assignment of valued arrays (size 1, UCS2 values)"""
ulen = 1
ucs_value = ucs2_value
class test_assign_values_1_ucs4(assign_values, TestCase):
"""Check the assignment of valued arrays (size 1, UCS4 values)"""
ulen = 1
ucs_value = ucs4_value
class test_assign_values_2_ucs2(assign_values, TestCase):
"""Check the assignment of valued arrays (size 2, UCS2 values)"""
ulen = 2
ucs_value = ucs2_value
class test_assign_values_2_ucs4(assign_values, TestCase):
"""Check the assignment of valued arrays (size 2, UCS4 values)"""
ulen = 2
ucs_value = ucs4_value
class test_assign_values_1009_ucs2(assign_values, TestCase):
"""Check the assignment of valued arrays (size 1009, UCS2 values)"""
ulen = 1009
ucs_value = ucs2_value
class test_assign_values_1009_ucs4(assign_values, TestCase):
"""Check the assignment of valued arrays (size 1009, UCS4 values)"""
ulen = 1009
ucs_value = ucs4_value
############################################################
# Byteorder tests
############################################################
class byteorder_values:
"""Check the byteorder of unicode arrays in round-trip conversions"""
def test_values0D(self):
"""Check byteorder of 0-dimensional objects"""
ua = array(self.ucs_value*self.ulen, dtype='U%s' % self.ulen)
ua2 = ua.newbyteorder()
# This changes the interpretation of the data region (but not the
# actual data), therefore the returned scalars are not
# the same (they are byte-swapped versions of each other).
self.assert_(ua[()] != ua2[()])
ua3 = ua2.newbyteorder()
# Arrays must be equal after the round-trip
assert_equal(ua, ua3)
def test_valuesSD(self):
"""Check byteorder of single-dimensional objects"""
ua = array([self.ucs_value*self.ulen]*2, dtype='U%s' % self.ulen)
ua2 = ua.newbyteorder()
self.assert_(ua[0] != ua2[0])
self.assert_(ua[-1] != ua2[-1])
ua3 = ua2.newbyteorder()
# Arrays must be equal after the round-trip
assert_equal(ua, ua3)
def test_valuesMD(self):
"""Check byteorder of multi-dimensional objects"""
ua = array([[[self.ucs_value*self.ulen]*2]*3]*4,
dtype='U%s' % self.ulen)
ua2 = ua.newbyteorder()
self.assert_(ua[0,0,0] != ua2[0,0,0])
self.assert_(ua[-1,-1,-1] != ua2[-1,-1,-1])
ua3 = ua2.newbyteorder()
# Arrays must be equal after the round-trip
assert_equal(ua, ua3)
class test_byteorder_1_ucs2(byteorder_values, TestCase):
"""Check the byteorder in unicode (size 1, UCS2 values)"""
ulen = 1
ucs_value = ucs2_value
class test_byteorder_1_ucs4(byteorder_values, TestCase):
"""Check the byteorder in unicode (size 1, UCS4 values)"""
ulen = 1
ucs_value = ucs4_value
class test_byteorder_2_ucs2(byteorder_values, TestCase):
"""Check the byteorder in unicode (size 2, UCS2 values)"""
ulen = 2
ucs_value = ucs2_value
class test_byteorder_2_ucs4(byteorder_values, TestCase):
"""Check the byteorder in unicode (size 2, UCS4 values)"""
ulen = 2
ucs_value = ucs4_value
class test_byteorder_1009_ucs2(byteorder_values, TestCase):
"""Check the byteorder in unicode (size 1009, UCS2 values)"""
ulen = 1009
ucs_value = ucs2_value
class test_byteorder_1009_ucs4(byteorder_values, TestCase):
"""Check the byteorder in unicode (size 1009, UCS4 values)"""
ulen = 1009
ucs_value = ucs4_value
if __name__ == "__main__":
run_module_suite()
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