[Python-3000-checkins] r45650 - python/branches/p3yk/Lib/test/test_coercion.py
guido.van.rossum
python-3000-checkins at python.org
Sat Apr 22 19:37:28 CEST 2006
Author: guido.van.rossum
Date: Sat Apr 22 19:37:27 2006
New Revision: 45650
Removed:
python/branches/p3yk/Lib/test/test_coercion.py
Log:
Delete test_coercion.py. Coercion is dead, so this test is useless.
(Plus, it fails. :-)
Deleted: /python/branches/p3yk/Lib/test/test_coercion.py
==============================================================================
--- /python/branches/p3yk/Lib/test/test_coercion.py Sat Apr 22 19:37:27 2006
+++ (empty file)
@@ -1,329 +0,0 @@
-import copy
-import sys
-import warnings
-import unittest
-from test.test_support import run_unittest
-
-# Fake a number that implements numeric methods through __coerce__
-class CoerceNumber:
- def __init__(self, arg):
- self.arg = arg
-
- def __repr__(self):
- return '<CoerceNumber %s>' % repr(self.arg)
-
- def __coerce__(self, other):
- if isinstance(other, CoerceNumber):
- return self.arg, other.arg
- else:
- return (self.arg, other)
-
-# New-style class version of CoerceNumber
-class CoerceTo(object):
- def __init__(self, arg):
- self.arg = arg
- def __coerce__(self, other):
- if isinstance(other, CoerceTo):
- return self.arg, other.arg
- else:
- return self.arg, other
-
-
-# Fake a number that implements numeric ops through methods.
-class MethodNumber:
- def __init__(self,arg):
- self.arg = arg
-
- def __repr__(self):
- return '<MethodNumber %s>' % repr(self.arg)
-
- def __add__(self,other):
- return self.arg + other
-
- def __radd__(self,other):
- return other + self.arg
-
- def __sub__(self,other):
- return self.arg - other
-
- def __rsub__(self,other):
- return other - self.arg
-
- def __mul__(self,other):
- return self.arg * other
-
- def __rmul__(self,other):
- return other * self.arg
-
- def __truediv__(self,other):
- return self.arg / other
-
- def __rtruediv__(self,other):
- return other / self.arg
-
- def __truediv__(self,other):
- return self.arg / other
-
- def __rtruediv__(self,other):
- return other / self.arg
-
- def __floordiv__(self,other):
- return self.arg // other
-
- def __rfloordiv__(self,other):
- return other // self.arg
-
- def __pow__(self,other):
- return self.arg ** other
-
- def __rpow__(self,other):
- return other ** self.arg
-
- def __mod__(self,other):
- return self.arg % other
-
- def __rmod__(self,other):
- return other % self.arg
-
- def __cmp__(self, other):
- return cmp(self.arg, other)
-
-
-candidates = [2, 2L, 4.0, 2+0j, [1], (2,), None,
- MethodNumber(2), CoerceNumber(2)]
-
-infix_binops = [ '+', '-', '*', '**', '%', '//', '/' ]
-
-TE = TypeError
-# b = both normal and augmented give same result list
-# s = single result lists for normal and augmented
-# e = equals other results
-# result lists: ['+', '-', '*', '**', '%', '//', ('classic /', 'new /')]
-# ^^^^^^^^^^^^^^^^^^^^^^
-# 2-tuple if results differ
-# else only one value
-infix_results = {
- # 2
- (0,0): ('b', [4, 0, 4, 4, 0, 1, (1, 1.0)]),
- (0,1): ('e', (0,0)),
- (0,2): ('b', [6.0, -2.0, 8.0, 16.0, 2.0, 0.0, 0.5]),
- (0,3): ('b', [4+0j, 0+0j, 4+0j, 4+0j, 0+0j, 1+0j, 1+0j]),
- (0,4): ('b', [TE, TE, [1, 1], TE, TE, TE, TE]),
- (0,5): ('b', [TE, TE, (2, 2), TE, TE, TE, TE]),
- (0,6): ('b', [TE, TE, TE, TE, TE, TE, TE]),
- (0,7): ('e', (0,0)),
- (0,8): ('e', (0,0)),
-
- # 2L
- (1,0): ('e', (0,0)),
- (1,1): ('e', (0,1)),
- (1,2): ('e', (0,2)),
- (1,3): ('e', (0,3)),
- (1,4): ('e', (0,4)),
- (1,5): ('e', (0,5)),
- (1,6): ('e', (0,6)),
- (1,7): ('e', (0,7)),
- (1,8): ('e', (0,8)),
-
- # 4.0
- (2,0): ('b', [6.0, 2.0, 8.0, 16.0, 0.0, 2.0, 2.0]),
- (2,1): ('e', (2,0)),
- (2,2): ('b', [8.0, 0.0, 16.0, 256.0, 0.0, 1.0, 1.0]),
- (2,3): ('b', [6+0j, 2+0j, 8+0j, 16+0j, 0+0j, 2+0j, 2+0j]),
- (2,4): ('b', [TE, TE, TE, TE, TE, TE, TE]),
- (2,5): ('e', (2,4)),
- (2,6): ('e', (2,4)),
- (2,7): ('e', (2,0)),
- (2,8): ('e', (2,0)),
-
- # (2+0j)
- (3,0): ('b', [4+0j, 0+0j, 4+0j, 4+0j, 0+0j, 1+0j, 1+0j]),
- (3,1): ('e', (3,0)),
- (3,2): ('b', [6+0j, -2+0j, 8+0j, 16+0j, 2+0j, 0+0j, 0.5+0j]),
- (3,3): ('b', [4+0j, 0+0j, 4+0j, 4+0j, 0+0j, 1+0j, 1+0j]),
- (3,4): ('b', [TE, TE, TE, TE, TE, TE, TE]),
- (3,5): ('e', (3,4)),
- (3,6): ('e', (3,4)),
- (3,7): ('e', (3,0)),
- (3,8): ('e', (3,0)),
-
- # [1]
- (4,0): ('b', [TE, TE, [1, 1], TE, TE, TE, TE]),
- (4,1): ('e', (4,0)),
- (4,2): ('b', [TE, TE, TE, TE, TE, TE, TE]),
- (4,3): ('b', [TE, TE, TE, TE, TE, TE, TE]),
- (4,4): ('b', [[1, 1], TE, TE, TE, TE, TE, TE]),
- (4,5): ('s', [TE, TE, TE, TE, TE, TE, TE], [[1, 2], TE, TE, TE, TE, TE, TE]),
- (4,6): ('b', [TE, TE, TE, TE, TE, TE, TE]),
- (4,7): ('e', (4,0)),
- (4,8): ('e', (4,0)),
-
- # (2,)
- (5,0): ('b', [TE, TE, (2, 2), TE, TE, TE, TE]),
- (5,1): ('e', (5,0)),
- (5,2): ('b', [TE, TE, TE, TE, TE, TE, TE]),
- (5,3): ('e', (5,2)),
- (5,4): ('e', (5,2)),
- (5,5): ('b', [(2, 2), TE, TE, TE, TE, TE, TE]),
- (5,6): ('b', [TE, TE, TE, TE, TE, TE, TE]),
- (5,7): ('e', (5,0)),
- (5,8): ('e', (5,0)),
-
- # None
- (6,0): ('b', [TE, TE, TE, TE, TE, TE, TE]),
- (6,1): ('e', (6,0)),
- (6,2): ('e', (6,0)),
- (6,3): ('e', (6,0)),
- (6,4): ('e', (6,0)),
- (6,5): ('e', (6,0)),
- (6,6): ('e', (6,0)),
- (6,7): ('e', (6,0)),
- (6,8): ('e', (6,0)),
-
- # MethodNumber(2)
- (7,0): ('e', (0,0)),
- (7,1): ('e', (0,1)),
- (7,2): ('e', (0,2)),
- (7,3): ('e', (0,3)),
- (7,4): ('e', (0,4)),
- (7,5): ('e', (0,5)),
- (7,6): ('e', (0,6)),
- (7,7): ('e', (0,7)),
- (7,8): ('e', (0,8)),
-
- # CoerceNumber(2)
- (8,0): ('e', (0,0)),
- (8,1): ('e', (0,1)),
- (8,2): ('e', (0,2)),
- (8,3): ('e', (0,3)),
- (8,4): ('e', (0,4)),
- (8,5): ('e', (0,5)),
- (8,6): ('e', (0,6)),
- (8,7): ('e', (0,7)),
- (8,8): ('e', (0,8)),
-}
-
-def process_infix_results():
- for key in sorted(infix_results):
- val = infix_results[key]
- if val[0] == 'e':
- infix_results[key] = infix_results[val[1]]
- else:
- if val[0] == 's':
- res = (val[1], val[2])
- elif val[0] == 'b':
- res = (val[1], val[1])
- for i in range(1):
- if isinstance(res[i][6], tuple):
- if 1/2 == 0:
- # testing with classic (floor) division
- res[i][6] = res[i][6][0]
- else:
- # testing with -Qnew
- res[i][6] = res[i][6][1]
- infix_results[key] = res
-
-
-
-process_infix_results()
-# now infix_results has two lists of results for every pairing.
-
-prefix_binops = [ 'divmod' ]
-prefix_results = [
- [(1,0), (1L,0L), (0.0,2.0), ((1+0j),0j), TE, TE, TE, TE, (1,0)],
- [(1L,0L), (1L,0L), (0.0,2.0), ((1+0j),0j), TE, TE, TE, TE, (1L,0L)],
- [(2.0,0.0), (2.0,0.0), (1.0,0.0), ((2+0j),0j), TE, TE, TE, TE, (2.0,0.0)],
- [((1+0j),0j), ((1+0j),0j), (0j,(2+0j)), ((1+0j),0j), TE, TE, TE, TE, ((1+0j),0j)],
- [TE, TE, TE, TE, TE, TE, TE, TE, TE],
- [TE, TE, TE, TE, TE, TE, TE, TE, TE],
- [TE, TE, TE, TE, TE, TE, TE, TE, TE],
- [TE, TE, TE, TE, TE, TE, TE, TE, TE],
- [(1,0), (1L,0L), (0.0,2.0), ((1+0j),0j), TE, TE, TE, TE, (1,0)]
-]
-
-def format_float(value):
- if abs(value) < 0.01:
- return '0.0'
- else:
- return '%.1f' % value
-
-# avoid testing platform fp quirks
-def format_result(value):
- if isinstance(value, complex):
- return '(%s + %sj)' % (format_float(value.real),
- format_float(value.imag))
- elif isinstance(value, float):
- return format_float(value)
- return str(value)
-
-class CoercionTest(unittest.TestCase):
- def test_infix_binops(self):
- for ia, a in enumerate(candidates):
- for ib, b in enumerate(candidates):
- results = infix_results[(ia, ib)]
- for op, res, ires in zip(infix_binops, results[0], results[1]):
- if res is TE:
- self.assertRaises(TypeError, eval,
- 'a %s b' % op, {'a': a, 'b': b})
- else:
- self.assertEquals(format_result(res),
- format_result(eval('a %s b' % op)),
- '%s %s %s == %s failed' % (a, op, b, res))
- try:
- z = copy.copy(a)
- except copy.Error:
- z = a # assume it has no inplace ops
- if ires is TE:
- try:
- exec 'z %s= b' % op
- except TypeError:
- pass
- else:
- self.fail("TypeError not raised")
- else:
- exec('z %s= b' % op)
- self.assertEquals(ires, z)
-
- def test_prefix_binops(self):
- for ia, a in enumerate(candidates):
- for ib, b in enumerate(candidates):
- for op in prefix_binops:
- res = prefix_results[ia][ib]
- if res is TE:
- self.assertRaises(TypeError, eval,
- '%s(a, b)' % op, {'a': a, 'b': b})
- else:
- self.assertEquals(format_result(res),
- format_result(eval('%s(a, b)' % op)),
- '%s(%s, %s) == %s failed' % (op, a, b, res))
-
- def test_cmptypes(self):
- # Built-in tp_compare slots expect their arguments to have the
- # same type, but a user-defined __coerce__ doesn't have to obey.
- # SF #980352
- evil_coercer = CoerceTo(42)
- # Make sure these don't crash any more
- self.assertNotEquals(cmp(u'fish', evil_coercer), 0)
- self.assertNotEquals(cmp(slice(1), evil_coercer), 0)
- # ...but that this still works
- class WackyComparer(object):
- def __cmp__(slf, other):
- self.assert_(other == 42, 'expected evil_coercer, got %r' % other)
- return 0
- self.assertEquals(cmp(WackyComparer(), evil_coercer), 0)
- # ...and classic classes too, since that code path is a little different
- class ClassicWackyComparer:
- def __cmp__(slf, other):
- self.assert_(other == 42, 'expected evil_coercer, got %r' % other)
- return 0
- self.assertEquals(cmp(ClassicWackyComparer(), evil_coercer), 0)
-
-def test_main():
- warnings.filterwarnings("ignore",
- r'complex divmod\(\), // and % are deprecated',
- DeprecationWarning,
- r'test.test_coercion$')
- run_unittest(CoercionTest)
-
-if __name__ == "__main__":
- test_main()
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