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c:\python24\lib \ test \ test_types.py



0001 # Python test set -- part 6, built-in types
0002 
0003 from test.test_support import *
0004 
0005 print '6. Built-in types'
0006 
0007 print '6.1 Truth value testing'
0008 if None: raise TestFailed, 'None is true instead of false'
0009 if 0: raise TestFailed, '0 is true instead of false'
0010 if 0L: raise TestFailed, '0L is true instead of false'
0011 if 0.0: raise TestFailed, '0.0 is true instead of false'
0012 if '': raise TestFailed, '\'\' is true instead of false'
0013 if not 1: raise TestFailed, '1 is false instead of true'
0014 if not 1L: raise TestFailed, '1L is false instead of true'
0015 if not 1.0: raise TestFailed, '1.0 is false instead of true'
0016 if not 'x': raise TestFailed, '\'x\' is false instead of true'
0017 if not {'x': 1}: raise TestFailed, '{\'x\': 1} is false instead of true'
0018 def f(): pass
0019 class C: pass
0020 import sys
0021 x = C()
0022 if not f: raise TestFailed, 'f is false instead of true'
0023 if not C: raise TestFailed, 'C is false instead of true'
0024 if not sys: raise TestFailed, 'sys is false instead of true'
0025 if not x: raise TestFailed, 'x is false instead of true'
0026 
0027 print '6.2 Boolean operations'
0028 if 0 or 0: raise TestFailed, '0 or 0 is true instead of false'
0029 if 1 and 1: pass
0030 else: raise TestFailed, '1 and 1 is false instead of true'
0031 if not 1: raise TestFailed, 'not 1 is true instead of false'
0032 
0033 print '6.3 Comparisons'
0034 if 0 < 1 <= 1 == 1 >= 1 > 0 != 1: pass
0035 else: raise TestFailed, 'int comparisons failed'
0036 if 0L < 1L <= 1L == 1L >= 1L > 0L != 1L: pass
0037 else: raise TestFailed, 'long int comparisons failed'
0038 if 0.0 < 1.0 <= 1.0 == 1.0 >= 1.0 > 0.0 != 1.0: pass
0039 else: raise TestFailed, 'float comparisons failed'
0040 if '' < 'a' <= 'a' == 'a' < 'abc' < 'abd' < 'b': pass
0041 else: raise TestFailed, 'string comparisons failed'
0042 if None is None: pass
0043 else: raise TestFailed, 'identity test failed'
0044 
0045 try: float('')
0046 except ValueError: pass
0047 else: raise TestFailed, "float('') didn't raise ValueError"
0048 
0049 try: float('5\0')
0050 except ValueError: pass
0051 else: raise TestFailed, "float('5\0') didn't raise ValueError"
0052 
0053 try: 5.0 / 0.0
0054 except ZeroDivisionError: pass
0055 else: raise TestFailed, "5.0 / 0.0 didn't raise ZeroDivisionError"
0056 
0057 try: 5.0 // 0.0
0058 except ZeroDivisionError: pass
0059 else: raise TestFailed, "5.0 // 0.0 didn't raise ZeroDivisionError"
0060 
0061 try: 5.0 % 0.0
0062 except ZeroDivisionError: pass
0063 else: raise TestFailed, "5.0 % 0.0 didn't raise ZeroDivisionError"
0064 
0065 try: 5 / 0L
0066 except ZeroDivisionError: pass
0067 else: raise TestFailed, "5 / 0L didn't raise ZeroDivisionError"
0068 
0069 try: 5 // 0L
0070 except ZeroDivisionError: pass
0071 else: raise TestFailed, "5 // 0L didn't raise ZeroDivisionError"
0072 
0073 try: 5 % 0L
0074 except ZeroDivisionError: pass
0075 else: raise TestFailed, "5 % 0L didn't raise ZeroDivisionError"
0076 
0077 print '6.4 Numeric types (mostly conversions)'
0078 if 0 != 0L or 0 != 0.0 or 0L != 0.0: raise TestFailed, 'mixed comparisons'
0079 if 1 != 1L or 1 != 1.0 or 1L != 1.0: raise TestFailed, 'mixed comparisons'
0080 if -1 != -1L or -1 != -1.0 or -1L != -1.0:
0081     raise TestFailed, 'int/long/float value not equal'
0082 # calling built-in types without argument must return 0
0083 if int() != 0: raise TestFailed, 'int() does not return 0'
0084 if long() != 0L: raise TestFailed, 'long() does not return 0L'
0085 if float() != 0.0: raise TestFailed, 'float() does not return 0.0'
0086 if int(1.9) == 1 == int(1.1) and int(-1.1) == -1 == int(-1.9): pass
0087 else: raise TestFailed, 'int() does not round properly'
0088 if long(1.9) == 1L == long(1.1) and long(-1.1) == -1L == long(-1.9): pass
0089 else: raise TestFailed, 'long() does not round properly'
0090 if float(1) == 1.0 and float(-1) == -1.0 and float(0) == 0.0: pass
0091 else: raise TestFailed, 'float() does not work properly'
0092 print '6.4.1 32-bit integers'
0093 if 12 + 24 != 36: raise TestFailed, 'int op'
0094 if 12 + (-24) != -12: raise TestFailed, 'int op'
0095 if (-12) + 24 != 12: raise TestFailed, 'int op'
0096 if (-12) + (-24) != -36: raise TestFailed, 'int op'
0097 if not 12 < 24: raise TestFailed, 'int op'
0098 if not -24 < -12: raise TestFailed, 'int op'
0099 # Test for a particular bug in integer multiply
0100 xsize, ysize, zsize = 238, 356, 4
0101 if not (xsize*ysize*zsize == zsize*xsize*ysize == 338912):
0102     raise TestFailed, 'int mul commutativity'
0103 # And another.
0104 m = -sys.maxint - 1
0105 for divisor in 1, 2, 4, 8, 16, 32:
0106     j = m // divisor
0107     prod = divisor * j
0108     if prod != m:
0109         raise TestFailed, "%r * %r == %r != %r" % (divisor, j, prod, m)
0110     if type(prod) is not int:
0111         raise TestFailed, ("expected type(prod) to be int, not %r" %
0112                            type(prod))
0113 # Check for expected * overflow to long.
0114 for divisor in 1, 2, 4, 8, 16, 32:
0115     j = m // divisor - 1
0116     prod = divisor * j
0117     if type(prod) is not long:
0118         raise TestFailed, ("expected type(%r) to be long, not %r" %
0119                            (prod, type(prod)))
0120 # Check for expected * overflow to long.
0121 m = sys.maxint
0122 for divisor in 1, 2, 4, 8, 16, 32:
0123     j = m // divisor + 1
0124     prod = divisor * j
0125     if type(prod) is not long:
0126         raise TestFailed, ("expected type(%r) to be long, not %r" %
0127                            (prod, type(prod)))
0128 
0129 print '6.4.2 Long integers'
0130 if 12L + 24L != 36L: raise TestFailed, 'long op'
0131 if 12L + (-24L) != -12L: raise TestFailed, 'long op'
0132 if (-12L) + 24L != 12L: raise TestFailed, 'long op'
0133 if (-12L) + (-24L) != -36L: raise TestFailed, 'long op'
0134 if not 12L < 24L: raise TestFailed, 'long op'
0135 if not -24L < -12L: raise TestFailed, 'long op'
0136 x = sys.maxint
0137 if int(long(x)) != x: raise TestFailed, 'long op'
0138 try: y = int(long(x)+1L)
0139 except OverflowError: raise TestFailed, 'long op'
0140 if not isinstance(y, long): raise TestFailed, 'long op'
0141 x = -x
0142 if int(long(x)) != x: raise TestFailed, 'long op'
0143 x = x-1
0144 if int(long(x)) != x: raise TestFailed, 'long op'
0145 try: y = int(long(x)-1L)
0146 except OverflowError: raise TestFailed, 'long op'
0147 if not isinstance(y, long): raise TestFailed, 'long op'
0148 
0149 try: 5 << -5
0150 except ValueError: pass
0151 else: raise TestFailed, 'int negative shift <<'
0152 
0153 try: 5L << -5L
0154 except ValueError: pass
0155 else: raise TestFailed, 'long negative shift <<'
0156 
0157 try: 5 >> -5
0158 except ValueError: pass
0159 else: raise TestFailed, 'int negative shift >>'
0160 
0161 try: 5L >> -5L
0162 except ValueError: pass
0163 else: raise TestFailed, 'long negative shift >>'
0164 
0165 print '6.4.3 Floating point numbers'
0166 if 12.0 + 24.0 != 36.0: raise TestFailed, 'float op'
0167 if 12.0 + (-24.0) != -12.0: raise TestFailed, 'float op'
0168 if (-12.0) + 24.0 != 12.0: raise TestFailed, 'float op'
0169 if (-12.0) + (-24.0) != -36.0: raise TestFailed, 'float op'
0170 if not 12.0 < 24.0: raise TestFailed, 'float op'
0171 if not -24.0 < -12.0: raise TestFailed, 'float op'
0172 
0173 print '6.5 Sequence types'
0174 
0175 print '6.5.1 Strings'
0176 if len('') != 0: raise TestFailed, 'len(\'\')'
0177 if len('a') != 1: raise TestFailed, 'len(\'a\')'
0178 if len('abcdef') != 6: raise TestFailed, 'len(\'abcdef\')'
0179 if 'xyz' + 'abcde' != 'xyzabcde': raise TestFailed, 'string concatenation'
0180 if 'xyz'*3 != 'xyzxyzxyz': raise TestFailed, 'string repetition *3'
0181 if 0*'abcde' != '': raise TestFailed, 'string repetition 0*'
0182 if min('abc') != 'a' or max('abc') != 'c': raise TestFailed, 'min/max string'
0183 if 'a' in 'abc' and 'b' in 'abc' and 'c' in 'abc' and 'd' not in 'abc': pass
0184 else: raise TestFailed, 'in/not in string'
0185 x = 'x'*103
0186 if '%s!'%x != x+'!': raise TestFailed, 'nasty string formatting bug'
0187 
0188 #extended slices for strings
0189 a = '0123456789'
0190 vereq(a[::], a)
0191 vereq(a[::2], '02468')
0192 vereq(a[1::2], '13579')
0193 vereq(a[::-1],'9876543210')
0194 vereq(a[::-2], '97531')
0195 vereq(a[3::-2], '31')
0196 vereq(a[-100:100:], a)
0197 vereq(a[100:-100:-1], a[::-1])
0198 vereq(a[-100L:100L:2L], '02468')
0199 
0200 if have_unicode:
0201     a = unicode('0123456789', 'ascii')
0202     vereq(a[::], a)
0203     vereq(a[::2], unicode('02468', 'ascii'))
0204     vereq(a[1::2], unicode('13579', 'ascii'))
0205     vereq(a[::-1], unicode('9876543210', 'ascii'))
0206     vereq(a[::-2], unicode('97531', 'ascii'))
0207     vereq(a[3::-2], unicode('31', 'ascii'))
0208     vereq(a[-100:100:], a)
0209     vereq(a[100:-100:-1], a[::-1])
0210     vereq(a[-100L:100L:2L], unicode('02468', 'ascii'))
0211 
0212 
0213 print '6.5.2 Tuples [see test_tuple.py]'
0214 
0215 print '6.5.3 Lists [see test_list.py]'
0216 
0217 print '6.6 Mappings == Dictionaries [see test_dict.py]'
0218 
0219 
0220 try: type(1, 2)
0221 except TypeError: pass
0222 else: raise TestFailed, 'type(), w/2 args expected TypeError'
0223 
0224 try: type(1, 2, 3, 4)
0225 except TypeError: pass
0226 else: raise TestFailed, 'type(), w/4 args expected TypeError'
0227 
0228 print 'Buffers'
0229 try: buffer('asdf', -1)
0230 except ValueError: pass
0231 else: raise TestFailed, "buffer('asdf', -1) should raise ValueError"
0232 
0233 try: buffer(None)
0234 except TypeError: pass
0235 else: raise TestFailed, "buffer(None) should raise TypeError"
0236 
0237 a = buffer('asdf')
0238 hash(a)
0239 b = a * 5
0240 if a == b:
0241     raise TestFailed, 'buffers should not be equal'
0242 if str(b) != ('asdf' * 5):
0243     raise TestFailed, 'repeated buffer has wrong content'
0244 if str(a * 0) != '':
0245     raise TestFailed, 'repeated buffer zero times has wrong content'
0246 if str(a + buffer('def')) != 'asdfdef':
0247     raise TestFailed, 'concatenation of buffers yields wrong content'
0248 if str(buffer(a)) != 'asdf':
0249     raise TestFailed, 'composing buffers failed'
0250 if str(buffer(a, 2)) != 'df':
0251     raise TestFailed, 'specifying buffer offset failed'
0252 if str(buffer(a, 0, 2)) != 'as':
0253     raise TestFailed, 'specifying buffer size failed'
0254 if str(buffer(a, 1, 2)) != 'sd':
0255     raise TestFailed, 'specifying buffer offset and size failed'
0256 try: buffer(buffer('asdf', 1), -1)
0257 except ValueError: pass
0258 else: raise TestFailed, "buffer(buffer('asdf', 1), -1) should raise ValueError"
0259 if str(buffer(buffer('asdf', 0, 2), 0)) != 'as':
0260     raise TestFailed, 'composing length-specified buffer failed'
0261 if str(buffer(buffer('asdf', 0, 2), 0, 5000)) != 'as':
0262     raise TestFailed, 'composing length-specified buffer failed'
0263 if str(buffer(buffer('asdf', 0, 2), 0, -1)) != 'as':
0264     raise TestFailed, 'composing length-specified buffer failed'
0265 if str(buffer(buffer('asdf', 0, 2), 1, 2)) != 's':
0266     raise TestFailed, 'composing length-specified buffer failed'
0267 
0268 try: a[1] = 'g'
0269 except TypeError: pass
0270 else: raise TestFailed, "buffer assignment should raise TypeError"
0271 
0272 try: a[0:1] = 'g'
0273 except TypeError: pass
0274 else: raise TestFailed, "buffer slice assignment should raise TypeError"
0275 

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