| import unittest | |
| import string | |
| from string import Template | |
| 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') | |
| def test_format_keyword_arguments(self): | |
| fmt = string.Formatter() | |
| self.assertEqual(fmt.format("-{arg}-", arg='test'), '-test-') | |
| self.assertRaises(KeyError, fmt.format, "-{arg}-") | |
| self.assertEqual(fmt.format("-{self}-", self='test'), '-test-') | |
| self.assertRaises(KeyError, fmt.format, "-{self}-") | |
| self.assertEqual(fmt.format("-{format_string}-", format_string='test'), | |
| '-test-') | |
| self.assertRaises(KeyError, fmt.format, "-{format_string}-") | |
| self.assertEqual(fmt.format(arg='test', format_string="-{arg}-"), | |
| '-test-') | |
| 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) | |
| # Template tests (formerly housed in test_pep292.py) | |
| class Bag: | |
| pass | |
| class Mapping: | |
| def __getitem__(self, name): | |
| obj = self | |
| for part in name.split('.'): | |
| try: | |
| obj = getattr(obj, part) | |
| except AttributeError: | |
| raise KeyError(name) | |
| return obj | |
| class TestTemplate(unittest.TestCase): | |
| def test_regular_templates(self): | |
| s = Template('$who likes to eat a bag of $what worth $$100') | |
| self.assertEqual(s.substitute(dict(who='tim', what='ham')), | |
| 'tim likes to eat a bag of ham worth $100') | |
| self.assertRaises(KeyError, s.substitute, dict(who='tim')) | |
| self.assertRaises(TypeError, Template.substitute) | |
| def test_regular_templates_with_braces(self): | |
| s = Template('$who likes ${what} for ${meal}') | |
| d = dict(who='tim', what='ham', meal='dinner') | |
| self.assertEqual(s.substitute(d), 'tim likes ham for dinner') | |
| self.assertRaises(KeyError, s.substitute, | |
| dict(who='tim', what='ham')) | |
| def test_escapes(self): | |
| eq = self.assertEqual | |
| s = Template('$who likes to eat a bag of $$what worth $$100') | |
| eq(s.substitute(dict(who='tim', what='ham')), | |
| 'tim likes to eat a bag of $what worth $100') | |
| s = Template('$who likes $$') | |
| eq(s.substitute(dict(who='tim', what='ham')), 'tim likes $') | |
| def test_percents(self): | |
| eq = self.assertEqual | |
| s = Template('%(foo)s $foo ${foo}') | |
| d = dict(foo='baz') | |
| eq(s.substitute(d), '%(foo)s baz baz') | |
| eq(s.safe_substitute(d), '%(foo)s baz baz') | |
| def test_stringification(self): | |
| eq = self.assertEqual | |
| s = Template('tim has eaten $count bags of ham today') | |
| d = dict(count=7) | |
| eq(s.substitute(d), 'tim has eaten 7 bags of ham today') | |
| eq(s.safe_substitute(d), 'tim has eaten 7 bags of ham today') | |
| s = Template('tim has eaten ${count} bags of ham today') | |
| eq(s.substitute(d), 'tim has eaten 7 bags of ham today') | |
| def test_tupleargs(self): | |
| eq = self.assertEqual | |
| s = Template('$who ate ${meal}') | |
| d = dict(who=('tim', 'fred'), meal=('ham', 'kung pao')) | |
| eq(s.substitute(d), "('tim', 'fred') ate ('ham', 'kung pao')") | |
| eq(s.safe_substitute(d), "('tim', 'fred') ate ('ham', 'kung pao')") | |
| def test_SafeTemplate(self): | |
| eq = self.assertEqual | |
| s = Template('$who likes ${what} for ${meal}') | |
| eq(s.safe_substitute(dict(who='tim')), 'tim likes ${what} for ${meal}') | |
| eq(s.safe_substitute(dict(what='ham')), '$who likes ham for ${meal}') | |
| eq(s.safe_substitute(dict(what='ham', meal='dinner')), | |
| '$who likes ham for dinner') | |
| eq(s.safe_substitute(dict(who='tim', what='ham')), | |
| 'tim likes ham for ${meal}') | |
| eq(s.safe_substitute(dict(who='tim', what='ham', meal='dinner')), | |
| 'tim likes ham for dinner') | |
| def test_invalid_placeholders(self): | |
| raises = self.assertRaises | |
| s = Template('$who likes $') | |
| raises(ValueError, s.substitute, dict(who='tim')) | |
| s = Template('$who likes ${what)') | |
| raises(ValueError, s.substitute, dict(who='tim')) | |
| s = Template('$who likes $100') | |
| raises(ValueError, s.substitute, dict(who='tim')) | |
| def test_idpattern_override(self): | |
| class PathPattern(Template): | |
| idpattern = r'[_a-z][._a-z0-9]*' | |
| m = Mapping() | |
| m.bag = Bag() | |
| m.bag.foo = Bag() | |
| m.bag.foo.who = 'tim' | |
| m.bag.what = 'ham' | |
| s = PathPattern('$bag.foo.who likes to eat a bag of $bag.what') | |
| self.assertEqual(s.substitute(m), 'tim likes to eat a bag of ham') | |
| def test_pattern_override(self): | |
| class MyPattern(Template): | |
| pattern = r""" | |
| (?P<escaped>@{2}) | | |
| @(?P<named>[_a-z][._a-z0-9]*) | | |
| @{(?P<braced>[_a-z][._a-z0-9]*)} | | |
| (?P<invalid>@) | |
| """ | |
| m = Mapping() | |
| m.bag = Bag() | |
| m.bag.foo = Bag() | |
| m.bag.foo.who = 'tim' | |
| m.bag.what = 'ham' | |
| s = MyPattern('@bag.foo.who likes to eat a bag of @bag.what') | |
| self.assertEqual(s.substitute(m), 'tim likes to eat a bag of ham') | |
| class BadPattern(Template): | |
| pattern = r""" | |
| (?P<badname>.*) | | |
| (?P<escaped>@{2}) | | |
| @(?P<named>[_a-z][._a-z0-9]*) | | |
| @{(?P<braced>[_a-z][._a-z0-9]*)} | | |
| (?P<invalid>@) | | |
| """ | |
| s = BadPattern('@bag.foo.who likes to eat a bag of @bag.what') | |
| self.assertRaises(ValueError, s.substitute, {}) | |
| self.assertRaises(ValueError, s.safe_substitute, {}) | |
| def test_braced_override(self): | |
| class MyTemplate(Template): | |
| pattern = r""" | |
| \$(?: | |
| (?P<escaped>$) | | |
| (?P<named>[_a-z][_a-z0-9]*) | | |
| @@(?P<braced>[_a-z][_a-z0-9]*)@@ | | |
| (?P<invalid>) | | |
| ) | |
| """ | |
| tmpl = 'PyCon in $@@location@@' | |
| t = MyTemplate(tmpl) | |
| self.assertRaises(KeyError, t.substitute, {}) | |
| val = t.substitute({'location': 'Cleveland'}) | |
| self.assertEqual(val, 'PyCon in Cleveland') | |
| def test_braced_override_safe(self): | |
| class MyTemplate(Template): | |
| pattern = r""" | |
| \$(?: | |
| (?P<escaped>$) | | |
| (?P<named>[_a-z][_a-z0-9]*) | | |
| @@(?P<braced>[_a-z][_a-z0-9]*)@@ | | |
| (?P<invalid>) | | |
| ) | |
| """ | |
| tmpl = 'PyCon in $@@location@@' | |
| t = MyTemplate(tmpl) | |
| self.assertEqual(t.safe_substitute(), tmpl) | |
| val = t.safe_substitute({'location': 'Cleveland'}) | |
| self.assertEqual(val, 'PyCon in Cleveland') | |
| def test_unicode_values(self): | |
| s = Template('$who likes $what') | |
| d = dict(who=u't\xffm', what=u'f\xfe\fed') | |
| self.assertEqual(s.substitute(d), u't\xffm likes f\xfe\x0ced') | |
| def test_keyword_arguments(self): | |
| eq = self.assertEqual | |
| s = Template('$who likes $what') | |
| eq(s.substitute(who='tim', what='ham'), 'tim likes ham') | |
| eq(s.substitute(dict(who='tim'), what='ham'), 'tim likes ham') | |
| eq(s.substitute(dict(who='fred', what='kung pao'), | |
| who='tim', what='ham'), | |
| 'tim likes ham') | |
| s = Template('the mapping is $mapping') | |
| eq(s.substitute(dict(foo='none'), mapping='bozo'), | |
| 'the mapping is bozo') | |
| eq(s.substitute(dict(mapping='one'), mapping='two'), | |
| 'the mapping is two') | |
| s = Template('the self is $self') | |
| eq(s.substitute(self='bozo'), 'the self is bozo') | |
| def test_keyword_arguments_safe(self): | |
| eq = self.assertEqual | |
| raises = self.assertRaises | |
| s = Template('$who likes $what') | |
| eq(s.safe_substitute(who='tim', what='ham'), 'tim likes ham') | |
| eq(s.safe_substitute(dict(who='tim'), what='ham'), 'tim likes ham') | |
| eq(s.safe_substitute(dict(who='fred', what='kung pao'), | |
| who='tim', what='ham'), | |
| 'tim likes ham') | |
| s = Template('the mapping is $mapping') | |
| eq(s.safe_substitute(dict(foo='none'), mapping='bozo'), | |
| 'the mapping is bozo') | |
| eq(s.safe_substitute(dict(mapping='one'), mapping='two'), | |
| 'the mapping is two') | |
| d = dict(mapping='one') | |
| raises(TypeError, s.substitute, d, {}) | |
| raises(TypeError, s.safe_substitute, d, {}) | |
| s = Template('the self is $self') | |
| eq(s.safe_substitute(self='bozo'), 'the self is bozo') | |
| def test_delimiter_override(self): | |
| eq = self.assertEqual | |
| raises = self.assertRaises | |
| class AmpersandTemplate(Template): | |
| delimiter = '&' | |
| s = AmpersandTemplate('this &gift is for &{who} &&') | |
| eq(s.substitute(gift='bud', who='you'), 'this bud is for you &') | |
| raises(KeyError, s.substitute) | |
| eq(s.safe_substitute(gift='bud', who='you'), 'this bud is for you &') | |
| eq(s.safe_substitute(), 'this &gift is for &{who} &') | |
| s = AmpersandTemplate('this &gift is for &{who} &') | |
| raises(ValueError, s.substitute, dict(gift='bud', who='you')) | |
| eq(s.safe_substitute(), 'this &gift is for &{who} &') | |
| class PieDelims(Template): | |
| delimiter = '@' | |
| s = PieDelims('@who likes to eat a bag of @{what} worth $100') | |
| self.assertEqual(s.substitute(dict(who='tim', what='ham')), | |
| 'tim likes to eat a bag of ham worth $100') | |
| def test_main(): | |
| test_support.run_unittest(StringTest, ModuleTest, BytesAliasTest, TestTemplate) | |
| if __name__ == '__main__': | |
| test_main() |