import unittest, string

from test import test_support, string_tests

from UserList import UserList

class StringTest(

    string_tests.CommonTest,

    string_tests.MixinStrStringUserStringTest

    ):

    type2test = str

    def checkequal(self, result, object, methodname, *args):

        realresult = getattr(string, methodname)(object, *args)

        self.assertEqual(

            result,

            realresult

        )

    def checkraises(self, exc, object, methodname, *args):

        self.assertRaises(

            exc,

            getattr(string, methodname),

            object,

            *args

        )

    def checkcall(self, object, methodname, *args):

        getattr(string, methodname)(object, *args)

    def test_join(self):

        # These are the same checks as in string_test.ObjectTest.test_join

        # but the argument order ist different

        self.checkequal('a b c d', ['a', 'b', 'c', 'd'], 'join', ' ')

        self.checkequal('abcd', ('a', 'b', 'c', 'd'), 'join', '')

        self.checkequal('w x y z', string_tests.Sequence(), 'join', ' ')

        self.checkequal('abc', ('abc',), 'join', 'a')

        self.checkequal('z', UserList(['z']), 'join', 'a')

        if test_support.have_unicode:

            self.checkequal(unicode('a.b.c'), ['a', 'b', 'c'], 'join', unicode('.'))

            self.checkequal(unicode('a.b.c'), [unicode('a'), 'b', 'c'], 'join', '.')

            self.checkequal(unicode('a.b.c'), ['a', unicode('b'), 'c'], 'join', '.')

            self.checkequal(unicode('a.b.c'), ['a', 'b', unicode('c')], 'join', '.')

            self.checkraises(TypeError, ['a', unicode('b'), 3], 'join', '.')

        for i in [5, 25, 125]:

            self.checkequal(

                ((('a' * i) + '-') * i)[:-1],

                ['a' * i] * i, 'join', '-')

            self.checkequal(

                ((('a' * i) + '-') * i)[:-1],

                ('a' * i,) * i, 'join', '-')

        self.checkraises(TypeError, string_tests.BadSeq1(), 'join', ' ')

        self.checkequal('a b c', string_tests.BadSeq2(), 'join', ' ')

        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')

class ModuleTest(unittest.TestCase):

    def test_attrs(self):

        string.whitespace

        string.lowercase

        string.uppercase

        string.letters

        string.digits

        string.hexdigits

        string.octdigits

        string.punctuation

        string.printable

    def test_atoi(self):

        self.assertEqual(string.atoi(" 1 "), 1)

        self.assertRaises(ValueError, string.atoi, " 1x")

        self.assertRaises(ValueError, string.atoi, " x1 ")

    def test_atol(self):

        self.assertEqual(string.atol("  1  "), 1L)

        self.assertRaises(ValueError, string.atol, "  1x ")

        self.assertRaises(ValueError, string.atol, "  x1 ")

    def test_atof(self):

        self.assertAlmostEqual(string.atof("  1  "), 1.0)

        self.assertRaises(ValueError, string.atof, "  1x ")

        self.assertRaises(ValueError, string.atof, "  x1 ")

    def test_maketrans(self):

        transtable = '\000\001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037 !"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`xyzdefghijklmnopqrstuvwxyz{|}~\177\200\201\202\203\204\205\206\207\210\211\212\213\214\215\216\217\220\221\222\223\224\225\226\227\230\231\232\233\234\235\236\237\240\241\242\243\244\245\246\247\250\251\252\253\254\255\256\257\260\261\262\263\264\265\266\267\270\271\272\273\274\275\276\277\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337\340\341\342\343\344\345\346\347\350\351\352\353\354\355\356\357\360\361\362\363\364\365\366\367\370\371\372\373\374\375\376\377'

        self.assertEqual(string.maketrans('abc', 'xyz'), transtable)

        self.assertRaises(ValueError, string.maketrans, 'abc', 'xyzq')

    def test_capwords(self):

        self.assertEqual(string.capwords('abc def ghi'), 'Abc Def Ghi')

        self.assertEqual(string.capwords('abc\tdef\nghi'), 'Abc Def Ghi')

        self.assertEqual(string.capwords('abc\t   def  \nghi'), 'Abc Def Ghi')

        self.assertEqual(string.capwords('ABC DEF GHI'), 'Abc Def Ghi')

        self.assertEqual(string.capwords('ABC-DEF-GHI', '-'), 'Abc-Def-Ghi')

        self.assertEqual(string.capwords('ABC-def DEF-ghi GHI'), 'Abc-def Def-ghi Ghi')

    def test_formatter(self):

        fmt = string.Formatter()

        self.assertEqual(fmt.format("foo"), "foo")

        self.assertEqual(fmt.format("foo{0}", "bar"), "foobar")

        self.assertEqual(fmt.format("foo{1}{0}-{1}", "bar", 6), "foo6bar-6")

        self.assertEqual(fmt.format("-{arg!r}-", arg='test'), "-'test'-")

        # override get_value ############################################

        class NamespaceFormatter(string.Formatter):

            def __init__(self, namespace={}):

                string.Formatter.__init__(self)

                self.namespace = namespace

            def get_value(self, key, args, kwds):

                if isinstance(key, str):

                    try:

                        # Check explicitly passed arguments first

                        return kwds[key]

                    except KeyError:

                        return self.namespace[key]

                else:

                    string.Formatter.get_value(key, args, kwds)

        fmt = NamespaceFormatter({'greeting':'hello'})

        self.assertEqual(fmt.format("{greeting}, world!"), 'hello, world!')

        # override format_field #########################################

        class CallFormatter(string.Formatter):

            def format_field(self, value, format_spec):

                return format(value(), format_spec)

        fmt = CallFormatter()

        self.assertEqual(fmt.format('*{0}*', lambda : 'result'), '*result*')

        # override convert_field ########################################

        class XFormatter(string.Formatter):

            def convert_field(self, value, conversion):

                if conversion == 'x':

                    return None

                return super(XFormatter, self).convert_field(value, conversion)

        fmt = XFormatter()

        self.assertEqual(fmt.format("{0!r}:{0!x}", 'foo', 'foo'), "'foo':None")

        # override parse ################################################

        class BarFormatter(string.Formatter):

            # returns an iterable that contains tuples of the form:

            # (literal_text, field_name, format_spec, conversion)

            def parse(self, format_string):

                for field in format_string.split('|'):

                    if field[0] == '+':

                        # it's markup

                        field_name, _, format_spec = field[1:].partition(':')

                        yield '', field_name, format_spec, None

                    else:

                        yield field, None, None, None

        fmt = BarFormatter()

        self.assertEqual(fmt.format('*|+0:^10s|*', 'foo'), '*   foo    *')

        # test all parameters used

        class CheckAllUsedFormatter(string.Formatter):

            def check_unused_args(self, used_args, args, kwargs):

                # Track which arguments actuallly got used

                unused_args = set(kwargs.keys())

                unused_args.update(range(0, len(args)))

                for arg in used_args:

                    unused_args.remove(arg)

                if unused_args:

                    raise ValueError("unused arguments")

        fmt = CheckAllUsedFormatter()

        self.assertEqual(fmt.format("{0}", 10), "10")

        self.assertEqual(fmt.format("{0}{i}", 10, i=100), "10100")

        self.assertEqual(fmt.format("{0}{i}{1}", 10, 20, i=100), "1010020")

        self.assertRaises(ValueError, fmt.format, "{0}{i}{1}", 10, 20, i=100, j=0)

        self.assertRaises(ValueError, fmt.format, "{0}", 10, 20)

        self.assertRaises(ValueError, fmt.format, "{0}", 10, 20, i=100)

        self.assertRaises(ValueError, fmt.format, "{i}", 10, 20, i=100)

        # Alternate formatting is not supported

        self.assertRaises(ValueError, format, '', '#')

        self.assertRaises(ValueError, format, '', '#20')

class BytesAliasTest(unittest.TestCase):

    def test_builtin(self):

        self.assert_(str is bytes)

    def test_syntax(self):

        self.assertEqual(b"spam", "spam")

        self.assertEqual(br"egg\foo", "egg\\foo")

        self.assert_(type(b""), str)

        self.assert_(type(br""), str)

def test_main():

    test_support.run_unittest(StringTest, ModuleTest, BytesAliasTest)

if __name__ == "__main__":

    test_main()