string_tests.py 文件源码

def test_join(self):
        # join now works with any sequence type
        # moved here, because the argument order is
        # different in string.join (see the test in
        # test.test_string.StringTest.test_join)
        self.checkequal('a b c d', ' ', 'join', ['a', 'b', 'c', 'd'])
        self.checkequal('abcd', '', 'join', ('a', 'b', 'c', 'd'))
        self.checkequal('bd', '', 'join', ('', 'b', '', 'd'))
        self.checkequal('ac', '', 'join', ('a', '', 'c', ''))
        self.checkequal('w x y z', ' ', 'join', Sequence())
        self.checkequal('abc', 'a', 'join', ('abc',))
        self.checkequal('z', 'a', 'join', UserList(['z']))
        if test_support.have_unicode:
            self.checkequal(unicode('a.b.c'), unicode('.'), 'join', ['a', 'b', 'c'])
            self.checkequal(unicode('a.b.c'), '.', 'join', [unicode('a'), 'b', 'c'])
            self.checkequal(unicode('a.b.c'), '.', 'join', ['a', unicode('b'), 'c'])
            self.checkequal(unicode('a.b.c'), '.', 'join', ['a', 'b', unicode('c')])
            self.checkraises(TypeError, '.', 'join', ['a', unicode('b'), 3])
        for i in [5, 25, 125]:
            self.checkequal(((('a' * i) + '-') * i)[:-1], '-', 'join',
                 ['a' * i] * i)
            self.checkequal(((('a' * i) + '-') * i)[:-1], '-', 'join',
                 ('a' * i,) * i)

        self.checkraises(TypeError, ' ', 'join', BadSeq1())
        self.checkequal('a b c', ' ', 'join', BadSeq2())

        self.checkraises(TypeError, ' ', 'join')
        self.checkraises(TypeError, ' ', 'join', None)
        self.checkraises(TypeError, ' ', 'join', 7)
        self.checkraises(TypeError, ' ', 'join', Sequence([7, 'hello', 123L]))
        try:
            def f():
                yield 4 + ""
            self.fixtype(' ').join(f())
        except TypeError, e:
            if '+' not in str(e):
                self.fail('join() ate exception message')
        else:
            self.fail('exception not raised')