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- #! /usr/bin/env python
- """Test the arraymodule.
- Roger E. Masse
- """
- import array
- from test_support import verbose, TESTFN, unlink, TestFailed
-
- def main():
-
- testtype('c', 'c')
-
- for type in (['b', 'h', 'i', 'l', 'f', 'd']):
- testtype(type, 1)
-
- unlink(TESTFN)
-
-
- def testoverflow(type, lowerLimit, upperLimit):
- # should not overflow assigning lower limit
- if verbose:
- print "overflow test: array(%s, [%s])" % (`type`, `lowerLimit`)
- try:
- a = array.array(type, [lowerLimit])
- except:
- raise TestFailed, "array(%s) overflowed assigning %s" %\
- (`type`, `lowerLimit`)
- # should overflow assigning less than lower limit
- if verbose:
- print "overflow test: array(%s, [%s])" % (`type`, `lowerLimit-1`)
- try:
- a = array.array(type, [lowerLimit-1])
- raise TestFailed, "array(%s) did not overflow assigning %s" %\
- (`type`, `lowerLimit-1`)
- except OverflowError:
- pass
- # should not overflow assigning upper limit
- if verbose:
- print "overflow test: array(%s, [%s])" % (`type`, `upperLimit`)
- try:
- a = array.array(type, [upperLimit])
- except:
- raise TestFailed, "array(%s) overflowed assigning %s" %\
- (`type`, `upperLimit`)
- # should overflow assigning more than upper limit
- if verbose:
- print "overflow test: array(%s, [%s])" % (`type`, `upperLimit+1`)
- try:
- a = array.array(type, [upperLimit+1])
- raise TestFailed, "array(%s) did not overflow assigning %s" %\
- (`type`, `upperLimit+1`)
- except OverflowError:
- pass
-
-
-
- def testtype(type, example):
-
- a = array.array(type)
- a.append(example)
- if verbose:
- print 40*'*'
- print 'array after append: ', a
- a.typecode
- a.itemsize
- if a.typecode in ('i', 'b', 'h', 'l'):
- a.byteswap()
-
- if a.typecode == 'c':
- f = open(TESTFN, "w")
- f.write("The quick brown fox jumps over the lazy dog.\n")
- f.close()
- f = open(TESTFN, 'r')
- a.fromfile(f, 10)
- f.close()
- if verbose:
- print 'char array with 10 bytes of TESTFN appended: ', a
- a.fromlist(['a', 'b', 'c'])
- if verbose:
- print 'char array with list appended: ', a
-
- a.insert(0, example)
- if verbose:
- print 'array of %s after inserting another:' % a.typecode, a
- f = open(TESTFN, 'w')
- a.tofile(f)
- f.close()
- a.tolist()
- a.tostring()
- if verbose:
- print 'array of %s converted to a list: ' % a.typecode, a.tolist()
- if verbose:
- print 'array of %s converted to a string: ' \
- % a.typecode, `a.tostring()`
-
- if type == 'c':
- a = array.array(type, "abcde")
- a[:-1] = a
- if a != array.array(type, "abcdee"):
- raise TestFailed, "array(%s) self-slice-assign (head)" % `type`
- a = array.array(type, "abcde")
- a[1:] = a
- if a != array.array(type, "aabcde"):
- raise TestFailed, "array(%s) self-slice-assign (tail)" % `type`
- a = array.array(type, "abcde")
- a[1:-1] = a
- if a != array.array(type, "aabcdee"):
- raise TestFailed, "array(%s) self-slice-assign (cntr)" % `type`
- if a.index("e") != 5:
- raise TestFailed, "array(%s) index-test" % `type`
- if a.count("a") != 2:
- raise TestFailed, "array(%s) count-test" % `type`
- a.remove("e")
- if a != array.array(type, "aabcde"):
- raise TestFailed, "array(%s) remove-test" % `type`
- if a.pop(0) != "a":
- raise TestFailed, "array(%s) pop-test" % `type`
- if a.pop(1) != "b":
- raise TestFailed, "array(%s) pop-test" % `type`
- a.extend(array.array(type, "xyz"))
- if a != array.array(type, "acdexyz"):
- raise TestFailed, "array(%s) extend-test" % `type`
- a.pop()
- a.pop()
- a.pop()
- x = a.pop()
- if x != 'e':
- raise TestFailed, "array(%s) pop-test" % `type`
- if a != array.array(type, "acd"):
- raise TestFailed, "array(%s) pop-test" % `type`
- a.reverse()
- if a != array.array(type, "dca"):
- raise TestFailed, "array(%s) reverse-test" % `type`
- else:
- a = array.array(type, [1, 2, 3, 4, 5])
- a[:-1] = a
- if a != array.array(type, [1, 2, 3, 4, 5, 5]):
- raise TestFailed, "array(%s) self-slice-assign (head)" % `type`
- a = array.array(type, [1, 2, 3, 4, 5])
- a[1:] = a
- if a != array.array(type, [1, 1, 2, 3, 4, 5]):
- raise TestFailed, "array(%s) self-slice-assign (tail)" % `type`
- a = array.array(type, [1, 2, 3, 4, 5])
- a[1:-1] = a
- if a != array.array(type, [1, 1, 2, 3, 4, 5, 5]):
- raise TestFailed, "array(%s) self-slice-assign (cntr)" % `type`
- if a.index(5) != 5:
- raise TestFailed, "array(%s) index-test" % `type`
- if a.count(1) != 2:
- raise TestFailed, "array(%s) count-test" % `type`
- a.remove(5)
- if a != array.array(type, [1, 1, 2, 3, 4, 5]):
- raise TestFailed, "array(%s) remove-test" % `type`
- if a.pop(0) != 1:
- raise TestFailed, "array(%s) pop-test" % `type`
- if a.pop(1) != 2:
- raise TestFailed, "array(%s) pop-test" % `type`
- a.extend(array.array(type, [7, 8, 9]))
- if a != array.array(type, [1, 3, 4, 5, 7, 8, 9]):
- raise TestFailed, "array(%s) extend-test" % `type`
- a.pop()
- a.pop()
- a.pop()
- x = a.pop()
- if x != 5:
- raise TestFailed, "array(%s) pop-test" % `type`
- if a != array.array(type, [1, 3, 4]):
- raise TestFailed, "array(%s) pop-test" % `type`
- a.reverse()
- if a != array.array(type, [4, 3, 1]):
- raise TestFailed, "array(%s) reverse-test" % `type`
-
- # test that overflow exceptions are raised as expected for assignment
- # to array of specific integral types
- from math import pow
- if type in ('b', 'h', 'i', 'l'):
- # check signed and unsigned versions
- a = array.array(type)
- signedLowerLimit = -1 * long(pow(2, a.itemsize * 8 - 1))
- signedUpperLimit = long(pow(2, a.itemsize * 8 - 1)) - 1L
- unsignedLowerLimit = 0
- unsignedUpperLimit = long(pow(2, a.itemsize * 8)) - 1L
- testoverflow(type, signedLowerLimit, signedUpperLimit)
- testoverflow(type.upper(), unsignedLowerLimit, unsignedUpperLimit)
-
-
-
- main()
-
-