mirror of https://github.com/python/cpython
330 lines
11 KiB
Python
Executable File
330 lines
11 KiB
Python
Executable File
#! /usr/bin/env python
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"""Test the arraymodule.
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Roger E. Masse
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"""
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import array
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from test_support import verbose, TESTFN, unlink, TestFailed
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def main():
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testtype('c', 'c')
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testtype('u', u'\u263a')
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for type in (['b', 'h', 'i', 'l', 'f', 'd']):
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testtype(type, 1)
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testunicode()
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testsubclassing()
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unlink(TESTFN)
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def testunicode():
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try:
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array.array('b', u'foo')
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except TypeError:
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pass
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else:
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raise TestFailed("creating a non-unicode array from "
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"a Unicode string should fail")
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x = array.array('u', u'\xa0\xc2\u1234')
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x.fromunicode(u' ')
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x.fromunicode(u'')
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x.fromunicode(u'')
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x.fromunicode(u'\x11abc\xff\u1234')
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s = x.tounicode()
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if s != u'\xa0\xc2\u1234 \x11abc\xff\u1234':
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raise TestFailed("fromunicode()/tounicode()")
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s = u'\x00="\'a\\b\x80\xff\u0000\u0001\u1234'
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a = array.array('u', s)
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if verbose:
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print "repr of type 'u' array:", repr(a)
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print " expected: array('u', %r)" % s
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def testsubclassing():
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class EditableString(array.array):
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def __new__(cls, s, *args, **kwargs):
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return array.array.__new__(cls, 'c', s)
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def __init__(self, s, color='blue'):
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array.array.__init__(self, 'c', s)
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self.color = color
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def strip(self):
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self[:] = array.array('c', self.tostring().strip())
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def __repr__(self):
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return 'EditableString(%r)' % self.tostring()
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s = EditableString("\ttest\r\n")
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s.strip()
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if s.tostring() != 'test':
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raise TestFailed, "subclassing array.array failed somewhere"
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if s.color != 'blue':
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raise TestFailed, "assigning attributes to instance of array subclass"
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s.color = 'red'
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if s.color != 'red':
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raise TestFailed, "assigning attributes to instance of array subclass"
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if s.__dict__.keys() != ['color']:
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raise TestFailed, "array subclass __dict__"
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class ExaggeratingArray(array.array):
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__slots__ = ['offset']
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def __new__(cls, typecode, data, offset):
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return array.array.__new__(cls, typecode, data)
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def __init__(self, typecode, data, offset):
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self.offset = offset
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def __getitem__(self, i):
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return array.array.__getitem__(self, i) + self.offset
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a = ExaggeratingArray('i', [3, 6, 7, 11], 4)
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if a[0] != 7:
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raise TestFailed, "array subclass overriding __getitem__"
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try:
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a.color = 'blue'
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except AttributeError:
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pass
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else:
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raise TestFailed, "array subclass __slots__ was ignored"
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def testoverflow(type, lowerLimit, upperLimit):
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# should not overflow assigning lower limit
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if verbose:
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print "overflow test: array(%s, [%s])" % (`type`, `lowerLimit`)
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try:
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a = array.array(type, [lowerLimit])
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except:
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raise TestFailed, "array(%s) overflowed assigning %s" %\
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(`type`, `lowerLimit`)
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# should overflow assigning less than lower limit
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if verbose:
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print "overflow test: array(%s, [%s])" % (`type`, `lowerLimit-1`)
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try:
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a = array.array(type, [lowerLimit-1])
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raise TestFailed, "array(%s) did not overflow assigning %s" %\
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(`type`, `lowerLimit-1`)
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except OverflowError:
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pass
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# should not overflow assigning upper limit
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if verbose:
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print "overflow test: array(%s, [%s])" % (`type`, `upperLimit`)
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try:
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a = array.array(type, [upperLimit])
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except:
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raise TestFailed, "array(%s) overflowed assigning %s" %\
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(`type`, `upperLimit`)
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# should overflow assigning more than upper limit
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if verbose:
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print "overflow test: array(%s, [%s])" % (`type`, `upperLimit+1`)
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try:
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a = array.array(type, [upperLimit+1])
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raise TestFailed, "array(%s) did not overflow assigning %s" %\
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(`type`, `upperLimit+1`)
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except OverflowError:
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pass
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def testtype(type, example):
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a = array.array(type)
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a.append(example)
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if verbose:
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print 40*'*'
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print 'array after append: ', a
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a.typecode
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a.itemsize
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if a.typecode in ('i', 'b', 'h', 'l'):
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a.byteswap()
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if a.typecode == 'c':
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f = open(TESTFN, "w")
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f.write("The quick brown fox jumps over the lazy dog.\n")
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f.close()
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f = open(TESTFN, 'r')
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a.fromfile(f, 10)
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f.close()
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if verbose:
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print 'char array with 10 bytes of TESTFN appended: ', a
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a.fromlist(['a', 'b', 'c'])
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if verbose:
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print 'char array with list appended: ', a
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a.insert(0, example)
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if verbose:
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print 'array of %s after inserting another:' % a.typecode, a
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f = open(TESTFN, 'w')
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a.tofile(f)
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f.close()
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# This block is just to verify that the operations don't blow up.
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a.tolist()
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a.tostring()
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repr(a)
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str(a)
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if verbose:
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print 'array of %s converted to a list: ' % a.typecode, a.tolist()
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if verbose:
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print 'array of %s converted to a string: ' \
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% a.typecode, `a.tostring()`
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# Try out inplace addition and multiplication
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a = array.array(type, [example])
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b = a
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a += array.array(type, [example]*2)
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if a is not b:
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raise TestFailed, "array(%s) inplace addition" % `type`
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if a != array.array(type, [example] * 3):
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raise TestFailed, "array(%s) inplace addition" % `type`
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a *= 5
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if a is not b:
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raise TestFailed, "array(%s) inplace multiplication" % `type`
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if a != array.array(type, [example] * 15):
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raise TestFailed, "array(%s) inplace multiplication" % `type`
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a *= 0
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if a is not b:
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raise TestFailed, "array(%s) inplace multiplication by 0" % `type`
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if a != array.array(type, []):
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raise TestFailed, "array(%s) inplace multiplication by 0" % `type`
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a *= 1000
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if a is not b:
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raise TestFailed, "empty array(%s) inplace multiplication" % `type`
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if a != array.array(type, []):
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raise TestFailed, "empty array(%s) inplace multiplication" % `type`
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if type == 'c':
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a = array.array(type, "abcde")
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a[:-1] = a
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if a != array.array(type, "abcdee"):
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raise TestFailed, "array(%s) self-slice-assign (head)" % `type`
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a = array.array(type, "abcde")
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a[1:] = a
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if a != array.array(type, "aabcde"):
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raise TestFailed, "array(%s) self-slice-assign (tail)" % `type`
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a = array.array(type, "abcde")
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a[1:-1] = a
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if a != array.array(type, "aabcdee"):
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raise TestFailed, "array(%s) self-slice-assign (cntr)" % `type`
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if a.index("e") != 5:
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raise TestFailed, "array(%s) index-test" % `type`
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if a.count("a") != 2:
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raise TestFailed, "array(%s) count-test" % `type`
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a.remove("e")
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if a != array.array(type, "aabcde"):
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raise TestFailed, "array(%s) remove-test" % `type`
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if a.pop(0) != "a":
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raise TestFailed, "array(%s) pop-test" % `type`
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if a.pop(1) != "b":
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raise TestFailed, "array(%s) pop-test" % `type`
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a.extend(array.array(type, "xyz"))
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if a != array.array(type, "acdexyz"):
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raise TestFailed, "array(%s) extend-test" % `type`
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a.pop()
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a.pop()
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a.pop()
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x = a.pop()
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if x != 'e':
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raise TestFailed, "array(%s) pop-test" % `type`
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if a != array.array(type, "acd"):
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raise TestFailed, "array(%s) pop-test" % `type`
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a.reverse()
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if a != array.array(type, "dca"):
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raise TestFailed, "array(%s) reverse-test" % `type`
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elif type == 'u':
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a = array.array(type, u"abcde")
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a[:-1] = a
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if a != array.array(type, u"abcdee"):
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raise TestFailed, "array(%s) self-slice-assign (head)" % `type`
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a = array.array(type, u"abcde")
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a[1:] = a
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if a != array.array(type, u"aabcde"):
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raise TestFailed, "array(%s) self-slice-assign (tail)" % `type`
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a = array.array(type, u"abcde")
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a[1:-1] = a
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if a != array.array(type, u"aabcdee"):
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raise TestFailed, "array(%s) self-slice-assign (cntr)" % `type`
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if a.index(u"e") != 5:
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raise TestFailed, "array(%s) index-test" % `type`
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if a.count(u"a") != 2:
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raise TestFailed, "array(%s) count-test" % `type`
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a.remove(u"e")
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if a != array.array(type, u"aabcde"):
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raise TestFailed, "array(%s) remove-test" % `type`
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if a.pop(0) != u"a":
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raise TestFailed, "array(%s) pop-test" % `type`
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if a.pop(1) != u"b":
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raise TestFailed, "array(%s) pop-test" % `type`
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a.extend(array.array(type, u"xyz"))
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if a != array.array(type, u"acdexyz"):
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raise TestFailed, "array(%s) extend-test" % `type`
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a.pop()
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a.pop()
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a.pop()
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x = a.pop()
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if x != u'e':
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raise TestFailed, "array(%s) pop-test" % `type`
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if a != array.array(type, u"acd"):
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raise TestFailed, "array(%s) pop-test" % `type`
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a.reverse()
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if a != array.array(type, u"dca"):
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raise TestFailed, "array(%s) reverse-test" % `type`
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else:
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a = array.array(type, [1, 2, 3, 4, 5])
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a[:-1] = a
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if a != array.array(type, [1, 2, 3, 4, 5, 5]):
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raise TestFailed, "array(%s) self-slice-assign (head)" % `type`
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a = array.array(type, [1, 2, 3, 4, 5])
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a[1:] = a
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if a != array.array(type, [1, 1, 2, 3, 4, 5]):
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raise TestFailed, "array(%s) self-slice-assign (tail)" % `type`
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a = array.array(type, [1, 2, 3, 4, 5])
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a[1:-1] = a
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if a != array.array(type, [1, 1, 2, 3, 4, 5, 5]):
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raise TestFailed, "array(%s) self-slice-assign (cntr)" % `type`
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if a.index(5) != 5:
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raise TestFailed, "array(%s) index-test" % `type`
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if a.count(1) != 2:
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raise TestFailed, "array(%s) count-test" % `type`
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a.remove(5)
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if a != array.array(type, [1, 1, 2, 3, 4, 5]):
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raise TestFailed, "array(%s) remove-test" % `type`
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if a.pop(0) != 1:
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raise TestFailed, "array(%s) pop-test" % `type`
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if a.pop(1) != 2:
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raise TestFailed, "array(%s) pop-test" % `type`
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a.extend(array.array(type, [7, 8, 9]))
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if a != array.array(type, [1, 3, 4, 5, 7, 8, 9]):
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raise TestFailed, "array(%s) extend-test" % `type`
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a.pop()
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a.pop()
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a.pop()
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x = a.pop()
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if x != 5:
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raise TestFailed, "array(%s) pop-test" % `type`
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if a != array.array(type, [1, 3, 4]):
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raise TestFailed, "array(%s) pop-test" % `type`
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a.reverse()
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if a != array.array(type, [4, 3, 1]):
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raise TestFailed, "array(%s) reverse-test" % `type`
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# test that overflow exceptions are raised as expected for assignment
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# to array of specific integral types
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from math import pow
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if type in ('b', 'h', 'i', 'l'):
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# check signed and unsigned versions
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a = array.array(type)
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signedLowerLimit = -1 * long(pow(2, a.itemsize * 8 - 1))
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signedUpperLimit = long(pow(2, a.itemsize * 8 - 1)) - 1L
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unsignedLowerLimit = 0
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unsignedUpperLimit = long(pow(2, a.itemsize * 8)) - 1L
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testoverflow(type, signedLowerLimit, signedUpperLimit)
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testoverflow(type.upper(), unsignedLowerLimit, unsignedUpperLimit)
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main()
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