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# Copyright David Abrahams 2004. Distributed under the Boost
# Software License, Version 1.0. (See accompanying
# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
from __future__ import print_function
'''
>>> from list_ext import *
>>> new_list()
[]
>>> listify((1,2,3))
[1, 2, 3]
>>> letters = listify_string('hello')
>>> letters
['h', 'e', 'l', 'l', 'o']
>>> X(22)
X(22)
>>> def identity(x):
... return x
>>> assert apply_object_list(identity, letters) is letters
5 is not convertible to a list
>>> try: result = apply_object_list(identity, 5)
... except TypeError: pass
... else: print('expected an exception, got', result, 'instead')
>>> assert apply_list_list(identity, letters) is letters
5 is not convertible to a list as a return value
>>> try: result = apply_list_list(len, letters)
... except TypeError: pass
... else: print('expected an exception, got', result, 'instead')
>>> append_object(letters, '.')
>>> letters
['h', 'e', 'l', 'l', 'o', '.']
tuples do not automatically convert to lists when passed as arguments
>>> try: append_list(letters, (1,2))
... except TypeError: pass
... else: print('expected an exception')
>>> append_list(letters, [1,2])
>>> letters
['h', 'e', 'l', 'l', 'o', '.', [1, 2]]
Check that subclass functions are properly called
>>> class mylist(list):
... def append(self, o):
... list.append(self, o)
... if not hasattr(self, 'nappends'):
... self.nappends = 1
... else:
... self.nappends += 1
...
>>> l2 = mylist()
>>> append_object(l2, 'hello')
>>> append_object(l2, 'world')
>>> l2
['hello', 'world']
>>> l2.nappends
2
>>> def printer(*args):
... for x in args: print( x,)
... print('')
...
>>> y = X(42)
>>> exercise(letters, y, printer) #doctest: +NORMALIZE_WHITESPACE
after append:
['h', 'e', 'l', 'l', 'o', '.', [1, 2], X(42), 5, X(3)]
number of X(42) instances: 1
number of 5s: 1
after extend:
['h', 'e', 'l', 'l', 'o', '.', [1, 2], X(42), 5, X(3), 'x', 'y', 'z']
index of X(42) is: 7
index of 'l' is: 2
after inserting 666:
['h', 'e', 'l', 'l', 666, 'o', '.', [1, 2], X(42), 5, X(3), 'x', 'y', 'z']
inserting with object as index:
['h', 'e', 'l', 'l', 666, '---', 'o', '.', [1, 2], X(42), 5, X(3), 'x', 'y', 'z']
popping...
['h', 'e', 'l', 'l', 666, '---', 'o', '.', [1, 2], X(42), 5, X(3), 'x', 'y']
['h', 'e', 'l', 'l', 666, 'o', '.', [1, 2], X(42), 5, X(3), 'x', 'y']
['h', 'e', 'l', 'l', 666, 'o', '.', [1, 2], X(42), X(3), 'x', 'y']
removing X(42)
['h', 'e', 'l', 'l', 666, 'o', '.', [1, 2], X(3), 'x', 'y']
removing 666
['h', 'e', 'l', 'l', 'o', '.', [1, 2], X(3), 'x', 'y']
reversing...
['y', 'x', X(3), [1, 2], '.', 'o', 'l', 'l', 'e', 'h']
sorted:
['.', 'e', 'h', 'l', 'l', 'o', 'x', 'y']
reverse sorted:
['y', 'x', 'o', 'l', 'l', 'h', 'e', '.']
'''
def run(args = None):
import sys
import doctest
if args is not None:
sys.argv = args
return doctest.testmod(sys.modules.get(__name__))
if __name__ == '__main__':
print("running...")
import sys
status = run()[0]
if (status == 0): print("Done.")
sys.exit(status)
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