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, obj, methodname, *args): with self.assertRaises(exc) as cm: getattr(string, methodname)(obj, *args) self.assertNotEqual(cm.exception.args[0], '') 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') self.assertEqual(string.capwords(' aBc DeF '), 'Abc Def') self.assertEqual(string.capwords('\taBc\tDeF\t'), 'Abc Def') self.assertEqual(string.capwords('\taBc\tDeF\t', '\t'), '\tAbc\tDef\t') 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 actually 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.assertTrue(str is bytes) def test_syntax(self): self.assertEqual(b"spam", "spam") self.assertEqual(br"egg\foo", "egg\\foo") self.assertTrue(type(b""), str) self.assertTrue(type(br""), str) def test_main(): test_support.run_unittest(StringTest, ModuleTest, BytesAliasTest) if __name__ == "__main__": test_main()