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270 lines
6.5 KiB
Python
270 lines
6.5 KiB
Python
# Copyright David Abrahams 2004. Distributed under the Boost
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# Software License, Version 1.0. (See accompanying
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# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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r"""
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>>> from builtin_converters import *
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# Synthesize idendity functions in case long long not supported
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>>> if not 'rewrap_value_long_long' in dir():
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... def rewrap_value_long_long(x): return long(x)
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... def rewrap_value_unsigned_long_long(x): return long(x)
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... def rewrap_const_reference_long_long(x): return long(x)
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... def rewrap_const_reference_unsigned_long_long(x): return long(x)
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>>> try: bool_exists = bool
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... except: pass
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... else:
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... rewrap_value_bool(True)
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... rewrap_value_bool(False)
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True
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False
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>>> rewrap_value_bool(None)
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0
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>>> rewrap_value_bool(0)
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0
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>>> rewrap_value_bool(33)
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1
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>>> rewrap_value_char('x')
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'x'
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Note that there's currently silent truncation of strings passed to
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char arguments.
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>>> rewrap_value_char('xy')
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'x'
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>>> rewrap_value_signed_char(42)
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42
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>>> rewrap_value_unsigned_char(42)
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42
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>>> rewrap_value_int(42)
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42
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>>> rewrap_value_unsigned_int(42)
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42
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>>> rewrap_value_short(42)
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42
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>>> rewrap_value_unsigned_short(42)
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42
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>>> rewrap_value_long(42)
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42
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>>> rewrap_value_unsigned_long(42)
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42
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test unsigned long values which don't fit in a signed long.
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strip any 'L' characters in case the platform has > 32 bit longs
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>>> hex(rewrap_value_unsigned_long(0x80000001L)).replace('L','')
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'0x80000001'
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>>> rewrap_value_long_long(42)
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42L
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>>> rewrap_value_unsigned_long_long(42)
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42L
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show that we have range checking.
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>>> try: rewrap_value_unsigned_short(-42)
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... except OverflowError: pass
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... else: print 'expected an OverflowError!'
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>>> try: rewrap_value_int(sys.maxint * 2)
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... except OverflowError: pass
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... else: print 'expected an OverflowError!'
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>>> assert abs(rewrap_value_float(4.2) - 4.2) < .000001
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>>> rewrap_value_double(4.2) - 4.2
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0.0
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>>> rewrap_value_long_double(4.2) - 4.2
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0.0
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>>> assert abs(rewrap_value_complex_float(4+.2j) - (4+.2j)) < .000001
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>>> assert abs(rewrap_value_complex_double(4+.2j) - (4+.2j)) < .000001
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>>> assert abs(rewrap_value_complex_long_double(4+.2j) - (4+.2j)) < .000001
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>>> rewrap_value_cstring('hello, world')
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'hello, world'
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>>> rewrap_value_string('yo, wassup?')
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'yo, wassup?'
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>>> try:
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... if unicode: pass
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... except:
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... print "u'yo, wassup?'"
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... else:
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... eval("rewrap_value_wstring(u'yo, wassup?')")
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u'yo, wassup?'
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test that overloading on unicode works:
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>>> try:
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... if unicode: pass
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... except:
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... print "u'yo, wassup?'"
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... else:
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... eval("rewrap_value_string(u'yo, wassup?')")
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u'yo, wassup?'
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wrap strings with embedded nulls:
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>>> rewrap_value_string('yo,\0wassup?')
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'yo,\x00wassup?'
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>>> rewrap_value_handle(1)
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1
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>>> x = 'hi'
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>>> assert rewrap_value_handle(x) is x
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>>> assert rewrap_value_object(x) is x
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Note that we can currently get a mutable pointer into an immutable
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Python string:
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>>> rewrap_value_mutable_cstring('hello, world')
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'hello, world'
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>>> rewrap_const_reference_bool(None)
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0
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>>> rewrap_const_reference_bool(0)
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0
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>>> try: rewrap_const_reference_bool('yes')
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... except TypeError: pass
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... else: print 'expected a TypeError exception'
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>>> rewrap_const_reference_char('x')
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'x'
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Note that there's currently silent truncation of strings passed to
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char arguments.
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>>> rewrap_const_reference_char('xy')
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'x'
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>>> rewrap_const_reference_signed_char(42)
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42
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>>> rewrap_const_reference_unsigned_char(42)
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42
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>>> rewrap_const_reference_int(42)
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42
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>>> rewrap_const_reference_unsigned_int(42)
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42
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>>> rewrap_const_reference_short(42)
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42
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>>> rewrap_const_reference_unsigned_short(42)
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42
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>>> rewrap_const_reference_long(42)
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42
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>>> rewrap_const_reference_unsigned_long(42)
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42
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>>> rewrap_const_reference_long_long(42)
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42L
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>>> rewrap_const_reference_unsigned_long_long(42)
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42L
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>>> assert abs(rewrap_const_reference_float(4.2) - 4.2) < .000001
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>>> rewrap_const_reference_double(4.2) - 4.2
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0.0
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>>> rewrap_const_reference_long_double(4.2) - 4.2
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0.0
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>>> assert abs(rewrap_const_reference_complex_float(4+.2j) - (4+.2j)) < .000001
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>>> assert abs(rewrap_const_reference_complex_double(4+.2j) - (4+.2j)) < .000001
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>>> assert abs(rewrap_const_reference_complex_long_double(4+.2j) - (4+.2j)) < .000001
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>>> rewrap_const_reference_cstring('hello, world')
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'hello, world'
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>>> rewrap_const_reference_string('yo, wassup?')
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'yo, wassup?'
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>>> rewrap_const_reference_handle(1)
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1
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>>> x = 'hi'
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>>> assert rewrap_const_reference_handle(x) is x
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>>> assert rewrap_const_reference_object(x) is x
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>>> assert rewrap_reference_object(x) is x
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Check that None <==> NULL
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>>> rewrap_const_reference_cstring(None)
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But None cannot be converted to a string object:
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>>> try: rewrap_const_reference_string(None)
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... except TypeError: pass
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... else: print 'expected a TypeError exception'
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Now check implicit conversions between floating/integer types
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>>> rewrap_const_reference_float(42)
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42.0
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>>> rewrap_const_reference_float(42L)
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42.0
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>>> try: rewrap_const_reference_int(42.0)
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... except TypeError: pass
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... else: print 'expected a TypeError exception'
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>>> rewrap_value_float(42)
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42.0
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>>> try: rewrap_value_int(42.0)
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... except TypeError: pass
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... else: print 'expected a TypeError exception'
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Check that classic classes also work
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>>> class FortyTwo:
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... def __int__(self):
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... return 42
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... def __float__(self):
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... return 42.0
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... def __complex__(self):
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... return complex(4+.2j)
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... def __str__(self):
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... return '42'
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>>> try: rewrap_const_reference_float(FortyTwo())
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... except TypeError: pass
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... else: print 'expected a TypeError exception'
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>>> try: rewrap_value_int(FortyTwo())
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... except TypeError: pass
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... else: print 'expected a TypeError exception'
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>>> try: rewrap_const_reference_string(FortyTwo())
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... except TypeError: pass
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... else: print 'expected a TypeError exception'
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>>> try: rewrap_value_complex_double(FortyTwo())
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... except TypeError: pass
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... else: print 'expected a TypeError exception'
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# show that arbitrary handle<T> instantiations can be returned
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>>> assert get_type(1) is type(1)
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>>> assert return_null_handle() is None
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"""
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def run(args = None):
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import sys
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import doctest
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import builtin_converters
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if 'rewrap_value_long_long' in dir(builtin_converters):
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print 'LONG_LONG supported, testing...'
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else:
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print 'LONG_LONG not supported, skipping those tests...'
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if args is not None:
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sys.argv = args
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return doctest.testmod(sys.modules.get(__name__))
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if __name__ == '__main__':
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print "running..."
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import sys
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status = run()[0]
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if (status == 0): print "Done."
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sys.exit(status)
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