Have the test filename match the module filename.

1 files changed, 1342 insertions, 0 deletions

diff --git a/Lib/test/test_configparser.py b/Lib/test/test_configparser.py
new file mode 100644
index 0000000..f7d9a26
--- /dev/null
+++ b/Lib/test/test_configparser.py
@@ -0,0 +1,1342 @@
+import collections
+import configparser
+import io
+import os
+import sys
+import textwrap
+import unittest
+import warnings
+
+from test import support
+
+class SortedDict(collections.UserDict):
+
+    def items(self):
+        return sorted(self.data.items())
+
+    def keys(self):
+        return sorted(self.data.keys())
+
+    def values(self):
+        return [i[1] for i in self.items()]
+
+    def iteritems(self): return iter(self.items())
+    def iterkeys(self): return iter(self.keys())
+    __iter__ = iterkeys
+    def itervalues(self): return iter(self.values())
+
+
+class CfgParserTestCaseClass(unittest.TestCase):
+    allow_no_value = False
+    delimiters = ('=', ':')
+    comment_prefixes = (';', '#')
+    inline_comment_prefixes = (';', '#')
+    empty_lines_in_values = True
+    dict_type = configparser._default_dict
+    strict = False
+    default_section = configparser.DEFAULTSECT
+    interpolation = configparser._UNSET
+
+    def newconfig(self, defaults=None):
+        arguments = dict(
+            defaults=defaults,
+            allow_no_value=self.allow_no_value,
+            delimiters=self.delimiters,
+            comment_prefixes=self.comment_prefixes,
+            inline_comment_prefixes=self.inline_comment_prefixes,
+            empty_lines_in_values=self.empty_lines_in_values,
+            dict_type=self.dict_type,
+            strict=self.strict,
+            default_section=self.default_section,
+            interpolation=self.interpolation,
+        )
+        instance = self.config_class(**arguments)
+        return instance
+
+    def fromstring(self, string, defaults=None):
+        cf = self.newconfig(defaults)
+        cf.read_string(string)
+        return cf
+
+class BasicTestCase(CfgParserTestCaseClass):
+
+    def basic_test(self, cf):
+        E = ['Commented Bar',
+             'Foo Bar',
+             'Internationalized Stuff',
+             'Long Line',
+             'Section\\with$weird%characters[\t',
+             'Spaces',
+             'Spacey Bar',
+             'Spacey Bar From The Beginning',
+             'Types',
+             ]
+
+        if self.allow_no_value:
+            E.append('NoValue')
+        E.sort()
+        F = [('baz', 'qwe'), ('foo', 'bar3')]
+
+        # API access
+        L = cf.sections()
+        L.sort()
+        eq = self.assertEqual
+        eq(L, E)
+        L = cf.items('Spacey Bar From The Beginning')
+        L.sort()
+        eq(L, F)
+
+        # mapping access
+        L = [section for section in cf]
+        L.sort()
+        E.append(self.default_section)
+        E.sort()
+        eq(L, E)
+        L = cf['Spacey Bar From The Beginning'].items()
+        L = sorted(list(L))
+        eq(L, F)
+        L = cf.items()
+        L = sorted(list(L))
+        self.assertEqual(len(L), len(E))
+        for name, section in L:
+            eq(name, section.name)
+        eq(cf.defaults(), cf[self.default_section])
+
+        # The use of spaces in the section names serves as a
+        # regression test for SourceForge bug #583248:
+        # http://www.python.org/sf/583248
+
+        # API access
+        eq(cf.get('Foo Bar', 'foo'), 'bar1')
+        eq(cf.get('Spacey Bar', 'foo'), 'bar2')
+        eq(cf.get('Spacey Bar From The Beginning', 'foo'), 'bar3')
+        eq(cf.get('Spacey Bar From The Beginning', 'baz'), 'qwe')
+        eq(cf.get('Commented Bar', 'foo'), 'bar4')
+        eq(cf.get('Commented Bar', 'baz'), 'qwe')
+        eq(cf.get('Spaces', 'key with spaces'), 'value')
+        eq(cf.get('Spaces', 'another with spaces'), 'splat!')
+        eq(cf.getint('Types', 'int'), 42)
+        eq(cf.get('Types', 'int'), "42")
+        self.assertAlmostEqual(cf.getfloat('Types', 'float'), 0.44)
+        eq(cf.get('Types', 'float'), "0.44")
+        eq(cf.getboolean('Types', 'boolean'), False)
+        eq(cf.get('Types', '123'), 'strange but acceptable')
+        if self.allow_no_value:
+            eq(cf.get('NoValue', 'option-without-value'), None)
+
+        # test vars= and fallback=
+        eq(cf.get('Foo Bar', 'foo', fallback='baz'), 'bar1')
+        eq(cf.get('Foo Bar', 'foo', vars={'foo': 'baz'}), 'baz')
+        with self.assertRaises(configparser.NoSectionError):
+            cf.get('No Such Foo Bar', 'foo')
+        with self.assertRaises(configparser.NoOptionError):
+            cf.get('Foo Bar', 'no-such-foo')
+        eq(cf.get('No Such Foo Bar', 'foo', fallback='baz'), 'baz')
+        eq(cf.get('Foo Bar', 'no-such-foo', fallback='baz'), 'baz')
+        eq(cf.get('Spacey Bar', 'foo', fallback=None), 'bar2')
+        eq(cf.get('No Such Spacey Bar', 'foo', fallback=None), None)
+        eq(cf.getint('Types', 'int', fallback=18), 42)
+        eq(cf.getint('Types', 'no-such-int', fallback=18), 18)
+        eq(cf.getint('Types', 'no-such-int', fallback="18"), "18") # sic!
+        with self.assertRaises(configparser.NoOptionError):
+            cf.getint('Types', 'no-such-int')
+        self.assertAlmostEqual(cf.getfloat('Types', 'float',
+                                           fallback=0.0), 0.44)
+        self.assertAlmostEqual(cf.getfloat('Types', 'no-such-float',
+                                           fallback=0.0), 0.0)
+        eq(cf.getfloat('Types', 'no-such-float', fallback="0.0"), "0.0") # sic!
+        with self.assertRaises(configparser.NoOptionError):
+            cf.getfloat('Types', 'no-such-float')
+        eq(cf.getboolean('Types', 'boolean', fallback=True), False)
+        eq(cf.getboolean('Types', 'no-such-boolean', fallback="yes"),
+           "yes") # sic!
+        eq(cf.getboolean('Types', 'no-such-boolean', fallback=True), True)
+        with self.assertRaises(configparser.NoOptionError):
+            cf.getboolean('Types', 'no-such-boolean')
+        eq(cf.getboolean('No Such Types', 'boolean', fallback=True), True)
+        if self.allow_no_value:
+            eq(cf.get('NoValue', 'option-without-value', fallback=False), None)
+            eq(cf.get('NoValue', 'no-such-option-without-value',
+                      fallback=False), False)
+
+        # mapping access
+        eq(cf['Foo Bar']['foo'], 'bar1')
+        eq(cf['Spacey Bar']['foo'], 'bar2')
+        section = cf['Spacey Bar From The Beginning']
+        eq(section.name, 'Spacey Bar From The Beginning')
+        self.assertIs(section.parser, cf)
+        with self.assertRaises(AttributeError):
+            section.name = 'Name is read-only'
+        with self.assertRaises(AttributeError):
+            section.parser = 'Parser is read-only'
+        eq(section['foo'], 'bar3')
+        eq(section['baz'], 'qwe')
+        eq(cf['Commented Bar']['foo'], 'bar4')
+        eq(cf['Commented Bar']['baz'], 'qwe')
+        eq(cf['Spaces']['key with spaces'], 'value')
+        eq(cf['Spaces']['another with spaces'], 'splat!')
+        eq(cf['Long Line']['foo'],
+           'this line is much, much longer than my editor\nlikes it.')
+        if self.allow_no_value:
+            eq(cf['NoValue']['option-without-value'], None)
+        # test vars= and fallback=
+        eq(cf['Foo Bar'].get('foo', 'baz'), 'bar1')
+        eq(cf['Foo Bar'].get('foo', fallback='baz'), 'bar1')
+        eq(cf['Foo Bar'].get('foo', vars={'foo': 'baz'}), 'baz')
+        with self.assertRaises(KeyError):
+            cf['No Such Foo Bar']['foo']
+        with self.assertRaises(KeyError):
+            cf['Foo Bar']['no-such-foo']
+        with self.assertRaises(KeyError):
+            cf['No Such Foo Bar'].get('foo', fallback='baz')
+        eq(cf['Foo Bar'].get('no-such-foo', 'baz'), 'baz')
+        eq(cf['Foo Bar'].get('no-such-foo', fallback='baz'), 'baz')
+        eq(cf['Foo Bar'].get('no-such-foo'), None)
+        eq(cf['Spacey Bar'].get('foo', None), 'bar2')
+        eq(cf['Spacey Bar'].get('foo', fallback=None), 'bar2')
+        with self.assertRaises(KeyError):
+            cf['No Such Spacey Bar'].get('foo', None)
+        eq(cf['Types'].getint('int', 18), 42)
+        eq(cf['Types'].getint('int', fallback=18), 42)
+        eq(cf['Types'].getint('no-such-int', 18), 18)
+        eq(cf['Types'].getint('no-such-int', fallback=18), 18)
+        eq(cf['Types'].getint('no-such-int', "18"), "18") # sic!
+        eq(cf['Types'].getint('no-such-int', fallback="18"), "18") # sic!
+        eq(cf['Types'].getint('no-such-int'), None)
+        self.assertAlmostEqual(cf['Types'].getfloat('float', 0.0), 0.44)
+        self.assertAlmostEqual(cf['Types'].getfloat('float',
+                                                    fallback=0.0), 0.44)
+        self.assertAlmostEqual(cf['Types'].getfloat('no-such-float', 0.0), 0.0)
+        self.assertAlmostEqual(cf['Types'].getfloat('no-such-float',
+                                                    fallback=0.0), 0.0)
+        eq(cf['Types'].getfloat('no-such-float', "0.0"), "0.0") # sic!
+        eq(cf['Types'].getfloat('no-such-float', fallback="0.0"), "0.0") # sic!
+        eq(cf['Types'].getfloat('no-such-float'), None)
+        eq(cf['Types'].getboolean('boolean', True), False)
+        eq(cf['Types'].getboolean('boolean', fallback=True), False)
+        eq(cf['Types'].getboolean('no-such-boolean', "yes"), "yes") # sic!
+        eq(cf['Types'].getboolean('no-such-boolean', fallback="yes"),
+           "yes") # sic!
+        eq(cf['Types'].getboolean('no-such-boolean', True), True)
+        eq(cf['Types'].getboolean('no-such-boolean', fallback=True), True)
+        eq(cf['Types'].getboolean('no-such-boolean'), None)
+        if self.allow_no_value:
+            eq(cf['NoValue'].get('option-without-value', False), None)
+            eq(cf['NoValue'].get('option-without-value', fallback=False), None)
+            eq(cf['NoValue'].get('no-such-option-without-value', False), False)
+            eq(cf['NoValue'].get('no-such-option-without-value',
+                      fallback=False), False)
+
+        # Make sure the right things happen for remove_section() and
+        # remove_option(); added to include check for SourceForge bug #123324.
+
+        cf[self.default_section]['this_value'] = '1'
+        cf[self.default_section]['that_value'] = '2'
+
+        # API access
+        self.assertTrue(cf.remove_section('Spaces'))
+        self.assertFalse(cf.has_option('Spaces', 'key with spaces'))
+        self.assertFalse(cf.remove_section('Spaces'))
+        self.assertFalse(cf.remove_section(self.default_section))
+        self.assertTrue(cf.remove_option('Foo Bar', 'foo'),
+                        "remove_option() failed to report existence of option")
+        self.assertFalse(cf.has_option('Foo Bar', 'foo'),
+                    "remove_option() failed to remove option")
+        self.assertFalse(cf.remove_option('Foo Bar', 'foo'),
+                    "remove_option() failed to report non-existence of option"
+                    " that was removed")
+        self.assertTrue(cf.has_option('Foo Bar', 'this_value'))
+        self.assertFalse(cf.remove_option('Foo Bar', 'this_value'))
+        self.assertTrue(cf.remove_option(self.default_section, 'this_value'))
+        self.assertFalse(cf.has_option('Foo Bar', 'this_value'))
+        self.assertFalse(cf.remove_option(self.default_section, 'this_value'))
+
+        with self.assertRaises(configparser.NoSectionError) as cm:
+            cf.remove_option('No Such Section', 'foo')
+        self.assertEqual(cm.exception.args, ('No Such Section',))
+
+        eq(cf.get('Long Line', 'foo'),
+           'this line is much, much longer than my editor\nlikes it.')
+
+        # mapping access
+        del cf['Types']
+        self.assertFalse('Types' in cf)
+        with self.assertRaises(KeyError):
+            del cf['Types']
+        with self.assertRaises(ValueError):
+            del cf[self.default_section]
+        del cf['Spacey Bar']['foo']
+        self.assertFalse('foo' in cf['Spacey Bar'])
+        with self.assertRaises(KeyError):
+            del cf['Spacey Bar']['foo']
+        self.assertTrue('that_value' in cf['Spacey Bar'])
+        with self.assertRaises(KeyError):
+            del cf['Spacey Bar']['that_value']
+        del cf[self.default_section]['that_value']
+        self.assertFalse('that_value' in cf['Spacey Bar'])
+        with self.assertRaises(KeyError):
+            del cf[self.default_section]['that_value']
+        with self.assertRaises(KeyError):
+            del cf['No Such Section']['foo']
+
+        # Don't add new asserts below in this method as most of the options
+        # and sections are now removed.
+
+    def test_basic(self):
+        config_string = """\
+[Foo Bar]
+foo{0[0]}bar1
+[Spacey Bar]
+foo {0[0]} bar2
+[Spacey Bar From The Beginning]
+  foo {0[0]} bar3
+  baz {0[0]} qwe
+[Commented Bar]
+foo{0[1]} bar4 {1[1]} comment
+baz{0[0]}qwe {1[0]}another one
+[Long Line]
+foo{0[1]} this line is much, much longer than my editor
+   likes it.
+[Section\\with$weird%characters[\t]
+[Internationalized Stuff]
+foo[bg]{0[1]} Bulgarian
+foo{0[0]}Default
+foo[en]{0[0]}English
+foo[de]{0[0]}Deutsch
+[Spaces]
+key with spaces {0[1]} value
+another with spaces {0[0]} splat!
+[Types]
+int {0[1]} 42
+float {0[0]} 0.44
+boolean {0[0]} NO
+123 {0[1]} strange but acceptable
+""".format(self.delimiters, self.comment_prefixes)
+        if self.allow_no_value:
+            config_string += (
+                "[NoValue]\n"
+                "option-without-value\n"
+                )
+        cf = self.fromstring(config_string)
+        self.basic_test(cf)
+        if self.strict:
+            with self.assertRaises(configparser.DuplicateOptionError):
+                cf.read_string(textwrap.dedent("""\
+                    [Duplicate Options Here]
+                    option {0[0]} with a value
+                    option {0[1]} with another value
+                """.format(self.delimiters)))
+            with self.assertRaises(configparser.DuplicateSectionError):
+                cf.read_string(textwrap.dedent("""\
+                    [And Now For Something]
+                    completely different {0[0]} True
+                    [And Now For Something]
+                    the larch {0[1]} 1
+                """.format(self.delimiters)))
+        else:
+            cf.read_string(textwrap.dedent("""\
+                [Duplicate Options Here]
+                option {0[0]} with a value
+                option {0[1]} with another value
+            """.format(self.delimiters)))
+
+            cf.read_string(textwrap.dedent("""\
+                [And Now For Something]
+                completely different {0[0]} True
+                [And Now For Something]
+                the larch {0[1]} 1
+            """.format(self.delimiters)))
+
+    def test_basic_from_dict(self):
+        config = {
+            "Foo Bar": {
+                "foo": "bar1",
+            },
+            "Spacey Bar": {
+                "foo": "bar2",
+            },
+            "Spacey Bar From The Beginning": {
+                "foo": "bar3",
+                "baz": "qwe",
+            },
+            "Commented Bar": {
+                "foo": "bar4",
+                "baz": "qwe",
+            },
+            "Long Line": {
+                "foo": "this line is much, much longer than my editor\nlikes "
+                       "it.",
+            },
+            "Section\\with$weird%characters[\t": {
+            },
+            "Internationalized Stuff": {
+                "foo[bg]": "Bulgarian",
+                "foo": "Default",
+                "foo[en]": "English",
+                "foo[de]": "Deutsch",
+            },
+            "Spaces": {
+                "key with spaces": "value",
+                "another with spaces": "splat!",
+            },
+            "Types": {
+                "int": 42,
+                "float": 0.44,
+                "boolean": False,
+                123: "strange but acceptable",
+            },
+        }
+        if self.allow_no_value:
+            config.update({
+                "NoValue": {
+                    "option-without-value": None,
+                }
+            })
+        cf = self.newconfig()
+        cf.read_dict(config)
+        self.basic_test(cf)
+        if self.strict:
+            with self.assertRaises(configparser.DuplicateSectionError):
+                cf.read_dict({
+                    '1': {'key': 'value'},
+                    1: {'key2': 'value2'},
+                })
+            with self.assertRaises(configparser.DuplicateOptionError):
+                cf.read_dict({
+                    "Duplicate Options Here": {
+                        'option': 'with a value',
+                        'OPTION': 'with another value',
+                    },
+                })
+        else:
+            cf.read_dict({
+                'section': {'key': 'value'},
+                'SECTION': {'key2': 'value2'},
+            })
+            cf.read_dict({
+                "Duplicate Options Here": {
+                    'option': 'with a value',
+                    'OPTION': 'with another value',
+                },
+            })
+
+    def test_case_sensitivity(self):
+        cf = self.newconfig()
+        cf.add_section("A")
+        cf.add_section("a")
+        cf.add_section("B")
+        L = cf.sections()
+        L.sort()
+        eq = self.assertEqual
+        eq(L, ["A", "B", "a"])
+        cf.set("a", "B", "value")
+        eq(cf.options("a"), ["b"])
+        eq(cf.get("a", "b"), "value",
+           "could not locate option, expecting case-insensitive option names")
+        with self.assertRaises(configparser.NoSectionError):
+            # section names are case-sensitive
+            cf.set("b", "A", "value")
+        self.assertTrue(cf.has_option("a", "b"))
+        self.assertFalse(cf.has_option("b", "b"))
+        cf.set("A", "A-B", "A-B value")
+        for opt in ("a-b", "A-b", "a-B", "A-B"):
+            self.assertTrue(
+                cf.has_option("A", opt),
+                "has_option() returned false for option which should exist")
+        eq(cf.options("A"), ["a-b"])
+        eq(cf.options("a"), ["b"])
+        cf.remove_option("a", "B")
+        eq(cf.options("a"), [])
+
+        # SF bug #432369:
+        cf = self.fromstring(
+            "[MySection]\nOption{} first line   \n\tsecond line   \n".format(
+                self.delimiters[0]))
+        eq(cf.options("MySection"), ["option"])
+        eq(cf.get("MySection", "Option"), "first line\nsecond line")
+
+        # SF bug #561822:
+        cf = self.fromstring("[section]\n"
+                             "nekey{}nevalue\n".format(self.delimiters[0]),
+                             defaults={"key":"value"})
+        self.assertTrue(cf.has_option("section", "Key"))
+
+
+    def test_case_sensitivity_mapping_access(self):
+        cf = self.newconfig()
+        cf["A"] = {}
+        cf["a"] = {"B": "value"}
+        cf["B"] = {}
+        L = [section for section in cf]
+        L.sort()
+        eq = self.assertEqual
+        elem_eq = self.assertCountEqual
+        eq(L, sorted(["A", "B", self.default_section, "a"]))
+        eq(cf["a"].keys(), {"b"})
+        eq(cf["a"]["b"], "value",
+           "could not locate option, expecting case-insensitive option names")
+        with self.assertRaises(KeyError):
+            # section names are case-sensitive
+            cf["b"]["A"] = "value"
+        self.assertTrue("b" in cf["a"])
+        cf["A"]["A-B"] = "A-B value"
+        for opt in ("a-b", "A-b", "a-B", "A-B"):
+            self.assertTrue(
+                opt in cf["A"],
+                "has_option() returned false for option which should exist")
+        eq(cf["A"].keys(), {"a-b"})
+        eq(cf["a"].keys(), {"b"})
+        del cf["a"]["B"]
+        elem_eq(cf["a"].keys(), {})
+
+        # SF bug #432369:
+        cf = self.fromstring(
+            "[MySection]\nOption{} first line   \n\tsecond line   \n".format(
+                self.delimiters[0]))
+        eq(cf["MySection"].keys(), {"option"})
+        eq(cf["MySection"]["Option"], "first line\nsecond line")
+
+        # SF bug #561822:
+        cf = self.fromstring("[section]\n"
+                             "nekey{}nevalue\n".format(self.delimiters[0]),
+                             defaults={"key":"value"})
+        self.assertTrue("Key" in cf["section"])
+
+    def test_default_case_sensitivity(self):
+        cf = self.newconfig({"foo": "Bar"})
+        self.assertEqual(
+            cf.get(self.default_section, "Foo"), "Bar",
+            "could not locate option, expecting case-insensitive option names")
+        cf = self.newconfig({"Foo": "Bar"})
+        self.assertEqual(
+            cf.get(self.default_section, "Foo"), "Bar",
+            "could not locate option, expecting case-insensitive defaults")
+
+    def test_parse_errors(self):
+        cf = self.newconfig()
+        self.parse_error(cf, configparser.ParsingError,
+                         "[Foo]\n"
+                         "{}val-without-opt-name\n".format(self.delimiters[0]))
+        self.parse_error(cf, configparser.ParsingError,
+                         "[Foo]\n"
+                         "{}val-without-opt-name\n".format(self.delimiters[1]))
+        e = self.parse_error(cf, configparser.MissingSectionHeaderError,
+                             "No Section!\n")
+        self.assertEqual(e.args, ('<???>', 1, "No Section!\n"))
+        if not self.allow_no_value:
+            e = self.parse_error(cf, configparser.ParsingError,
+                                "[Foo]\n  wrong-indent\n")
+            self.assertEqual(e.args, ('<???>',))
+            # read_file on a real file
+            tricky = support.findfile("cfgparser.3")
+            if self.delimiters[0] == '=':
+                error = configparser.ParsingError
+                expected = (tricky,)
+            else:
+                error = configparser.MissingSectionHeaderError
+                expected = (tricky, 1,
+                            '  # INI with as many tricky parts as possible\n')
+            with open(tricky, encoding='utf-8') as f:
+                e = self.parse_error(cf, error, f)
+            self.assertEqual(e.args, expected)
+
+    def parse_error(self, cf, exc, src):
+        if hasattr(src, 'readline'):
+            sio = src
+        else:
+            sio = io.StringIO(src)
+        with self.assertRaises(exc) as cm:
+            cf.read_file(sio)
+        return cm.exception
+
+    def test_query_errors(self):
+        cf = self.newconfig()
+        self.assertEqual(cf.sections(), [],
+                         "new ConfigParser should have no defined sections")
+        self.assertFalse(cf.has_section("Foo"),
+                         "new ConfigParser should have no acknowledged "
+                         "sections")
+        with self.assertRaises(configparser.NoSectionError):
+            cf.options("Foo")
+        with self.assertRaises(configparser.NoSectionError):
+            cf.set("foo", "bar", "value")
+        e = self.get_error(cf, configparser.NoSectionError, "foo", "bar")
+        self.assertEqual(e.args, ("foo",))
+        cf.add_section("foo")
+        e = self.get_error(cf, configparser.NoOptionError, "foo", "bar")
+        self.assertEqual(e.args, ("bar", "foo"))
+
+    def get_error(self, cf, exc, section, option):
+        try:
+            cf.get(section, option)
+        except exc as e:
+            return e
+        else:
+            self.fail("expected exception type %s.%s"
+                      % (exc.__module__, exc.__name__))
+
+    def test_boolean(self):
+        cf = self.fromstring(
+            "[BOOLTEST]\n"
+            "T1{equals}1\n"
+            "T2{equals}TRUE\n"
+            "T3{equals}True\n"
+            "T4{equals}oN\n"
+            "T5{equals}yes\n"
+            "F1{equals}0\n"
+            "F2{equals}FALSE\n"
+            "F3{equals}False\n"
+            "F4{equals}oFF\n"
+            "F5{equals}nO\n"
+            "E1{equals}2\n"
+            "E2{equals}foo\n"
+            "E3{equals}-1\n"
+            "E4{equals}0.1\n"
+            "E5{equals}FALSE AND MORE".format(equals=self.delimiters[0])
+            )
+        for x in range(1, 5):
+            self.assertTrue(cf.getboolean('BOOLTEST', 't%d' % x))
+            self.assertFalse(cf.getboolean('BOOLTEST', 'f%d' % x))
+            self.assertRaises(ValueError,
+                              cf.getboolean, 'BOOLTEST', 'e%d' % x)
+
+    def test_weird_errors(self):
+        cf = self.newconfig()
+        cf.add_section("Foo")
+        with self.assertRaises(configparser.DuplicateSectionError) as cm:
+            cf.add_section("Foo")
+        e = cm.exception
+        self.assertEqual(str(e), "Section 'Foo' already exists")
+        self.assertEqual(e.args, ("Foo", None, None))
+
+        if self.strict:
+            with self.assertRaises(configparser.DuplicateSectionError) as cm:
+                cf.read_string(textwrap.dedent("""\
+                    [Foo]
+                    will this be added{equals}True
+                    [Bar]
+                    what about this{equals}True
+                    [Foo]
+                    oops{equals}this won't
+                """.format(equals=self.delimiters[0])), source='<foo-bar>')
+            e = cm.exception
+            self.assertEqual(str(e), "While reading from <foo-bar> [line  5]: "
+                                     "section 'Foo' already exists")
+            self.assertEqual(e.args, ("Foo", '<foo-bar>', 5))
+
+            with self.assertRaises(configparser.DuplicateOptionError) as cm:
+                cf.read_dict({'Bar': {'opt': 'val', 'OPT': 'is really `opt`'}})
+            e = cm.exception
+            self.assertEqual(str(e), "While reading from <dict>: option 'opt' "
+                                     "in section 'Bar' already exists")
+            self.assertEqual(e.args, ("Bar", "opt", "<dict>", None))
+
+    def test_write(self):
+        config_string = (
+            "[Long Line]\n"
+            "foo{0[0]} this line is much, much longer than my editor\n"
+            "   likes it.\n"
+            "[{default_section}]\n"
+            "foo{0[1]} another very\n"
+            " long line\n"
+            "[Long Line - With Comments!]\n"
+            "test {0[1]} we        {comment} can\n"
+            "            also      {comment} place\n"
+            "            comments  {comment} in\n"
+            "            multiline {comment} values"
+            "\n".format(self.delimiters, comment=self.comment_prefixes[0],
+                        default_section=self.default_section)
+            )
+        if self.allow_no_value:
+            config_string += (
+            "[Valueless]\n"
+            "option-without-value\n"
+            )
+
+        cf = self.fromstring(config_string)
+        for space_around_delimiters in (True, False):
+            output = io.StringIO()
+            cf.write(output, space_around_delimiters=space_around_delimiters)
+            delimiter = self.delimiters[0]
+            if space_around_delimiters:
+                delimiter = " {} ".format(delimiter)
+            expect_string = (
+                "[{default_section}]\n"
+                "foo{equals}another very\n"
+                "\tlong line\n"
+                "\n"
+                "[Long Line]\n"
+                "foo{equals}this line is much, much longer than my editor\n"
+                "\tlikes it.\n"
+                "\n"
+                "[Long Line - With Comments!]\n"
+                "test{equals}we\n"
+                "\talso\n"
+                "\tcomments\n"
+                "\tmultiline\n"
+                "\n".format(equals=delimiter,
+                            default_section=self.default_section)
+                )
+            if self.allow_no_value:
+                expect_string += (
+                    "[Valueless]\n"
+                    "option-without-value\n"
+                    "\n"
+                    )
+            self.assertEqual(output.getvalue(), expect_string)
+
+    def test_set_string_types(self):
+        cf = self.fromstring("[sect]\n"
+                             "option1{eq}foo\n".format(eq=self.delimiters[0]))
+        # Check that we don't get an exception when setting values in
+        # an existing section using strings:
+        class mystr(str):
+            pass
+        cf.set("sect", "option1", "splat")
+        cf.set("sect", "option1", mystr("splat"))
+        cf.set("sect", "option2", "splat")
+        cf.set("sect", "option2", mystr("splat"))
+        cf.set("sect", "option1", "splat")
+        cf.set("sect", "option2", "splat")
+
+    def test_read_returns_file_list(self):
+        if self.delimiters[0] != '=':
+            # skip reading the file if we're using an incompatible format
+            return
+        file1 = support.findfile("cfgparser.1")
+        # check when we pass a mix of readable and non-readable files:
+        cf = self.newconfig()
+        parsed_files = cf.read([file1, "nonexistent-file"])
+        self.assertEqual(parsed_files, [file1])
+        self.assertEqual(cf.get("Foo Bar", "foo"), "newbar")
+        # check when we pass only a filename:
+        cf = self.newconfig()
+        parsed_files = cf.read(file1)
+        self.assertEqual(parsed_files, [file1])
+        self.assertEqual(cf.get("Foo Bar", "foo"), "newbar")
+        # check when we pass only missing files:
+        cf = self.newconfig()
+        parsed_files = cf.read(["nonexistent-file"])
+        self.assertEqual(parsed_files, [])
+        # check when we pass no files:
+        cf = self.newconfig()
+        parsed_files = cf.read([])
+        self.assertEqual(parsed_files, [])
+
+    # shared by subclasses
+    def get_interpolation_config(self):
+        return self.fromstring(
+            "[Foo]\n"
+            "bar{equals}something %(with1)s interpolation (1 step)\n"
+            "bar9{equals}something %(with9)s lots of interpolation (9 steps)\n"
+            "bar10{equals}something %(with10)s lots of interpolation (10 steps)\n"
+            "bar11{equals}something %(with11)s lots of interpolation (11 steps)\n"
+            "with11{equals}%(with10)s\n"
+            "with10{equals}%(with9)s\n"
+            "with9{equals}%(with8)s\n"
+            "with8{equals}%(With7)s\n"
+            "with7{equals}%(WITH6)s\n"
+            "with6{equals}%(with5)s\n"
+            "With5{equals}%(with4)s\n"
+            "WITH4{equals}%(with3)s\n"
+            "with3{equals}%(with2)s\n"
+            "with2{equals}%(with1)s\n"
+            "with1{equals}with\n"
+            "\n"
+            "[Mutual Recursion]\n"
+            "foo{equals}%(bar)s\n"
+            "bar{equals}%(foo)s\n"
+            "\n"
+            "[Interpolation Error]\n"
+            # no definition for 'reference'
+            "name{equals}%(reference)s\n".format(equals=self.delimiters[0]))
+
+    def check_items_config(self, expected):
+        cf = self.fromstring("""
+            [section]
+            name {0[0]} %(value)s
+            key{0[1]} |%(name)s|
+            getdefault{0[1]} |%(default)s|
+        """.format(self.delimiters), defaults={"default": "<default>"})
+        L = list(cf.items("section", vars={'value': 'value'}))
+        L.sort()
+        self.assertEqual(L, expected)
+        with self.assertRaises(configparser.NoSectionError):
+            cf.items("no such section")
+
+
+class StrictTestCase(BasicTestCase):
+    config_class = configparser.RawConfigParser
+    strict = True
+
+
+class ConfigParserTestCase(BasicTestCase):
+    config_class = configparser.ConfigParser
+
+    def test_interpolation(self):
+        cf = self.get_interpolation_config()
+        eq = self.assertEqual
+        eq(cf.get("Foo", "bar"), "something with interpolation (1 step)")
+        eq(cf.get("Foo", "bar9"),
+           "something with lots of interpolation (9 steps)")
+        eq(cf.get("Foo", "bar10"),
+           "something with lots of interpolation (10 steps)")
+        e = self.get_error(cf, configparser.InterpolationDepthError, "Foo", "bar11")
+        if self.interpolation == configparser._UNSET:
+            self.assertEqual(e.args, ("bar11", "Foo", "%(with1)s"))
+        elif isinstance(self.interpolation, configparser.LegacyInterpolation):
+            self.assertEqual(e.args, ("bar11", "Foo",
+                "something %(with11)s lots of interpolation (11 steps)"))
+
+    def test_interpolation_missing_value(self):
+        cf = self.get_interpolation_config()
+        e = self.get_error(cf, configparser.InterpolationMissingOptionError,
+                           "Interpolation Error", "name")
+        self.assertEqual(e.reference, "reference")
+        self.assertEqual(e.section, "Interpolation Error")
+        self.assertEqual(e.option, "name")
+        if self.interpolation == configparser._UNSET:
+            self.assertEqual(e.args, ('name', 'Interpolation Error',
+                                    '', 'reference'))
+        elif isinstance(self.interpolation, configparser.LegacyInterpolation):
+            self.assertEqual(e.args, ('name', 'Interpolation Error',
+                                    '%(reference)s', 'reference'))
+
+    def test_items(self):
+        self.check_items_config([('default', '<default>'),
+                                 ('getdefault', '|<default>|'),
+                                 ('key', '|value|'),
+                                 ('name', 'value'),
+                                 ('value', 'value')])
+
+    def test_safe_interpolation(self):
+        # See http://www.python.org/sf/511737
+        cf = self.fromstring("[section]\n"
+                             "option1{eq}xxx\n"
+                             "option2{eq}%(option1)s/xxx\n"
+                             "ok{eq}%(option1)s/%%s\n"
+                             "not_ok{eq}%(option2)s/%%s".format(
+                                 eq=self.delimiters[0]))
+        self.assertEqual(cf.get("section", "ok"), "xxx/%s")
+        if self.interpolation == configparser._UNSET:
+            self.assertEqual(cf.get("section", "not_ok"), "xxx/xxx/%s")
+        elif isinstance(self.interpolation, configparser.LegacyInterpolation):
+            with self.assertRaises(TypeError):
+                cf.get("section", "not_ok")
+
+    def test_set_malformatted_interpolation(self):
+        cf = self.fromstring("[sect]\n"
+                             "option1{eq}foo\n".format(eq=self.delimiters[0]))
+
+        self.assertEqual(cf.get('sect', "option1"), "foo")
+
+        self.assertRaises(ValueError, cf.set, "sect", "option1", "%foo")
+        self.assertRaises(ValueError, cf.set, "sect", "option1", "foo%")
+        self.assertRaises(ValueError, cf.set, "sect", "option1", "f%oo")
+
+        self.assertEqual(cf.get('sect', "option1"), "foo")
+
+        # bug #5741: double percents are *not* malformed
+        cf.set("sect", "option2", "foo%%bar")
+        self.assertEqual(cf.get("sect", "option2"), "foo%bar")
+
+    def test_set_nonstring_types(self):
+        cf = self.fromstring("[sect]\n"
+                             "option1{eq}foo\n".format(eq=self.delimiters[0]))
+        # Check that we get a TypeError when setting non-string values
+        # in an existing section:
+        self.assertRaises(TypeError, cf.set, "sect", "option1", 1)
+        self.assertRaises(TypeError, cf.set, "sect", "option1", 1.0)
+        self.assertRaises(TypeError, cf.set, "sect", "option1", object())
+        self.assertRaises(TypeError, cf.set, "sect", "option2", 1)
+        self.assertRaises(TypeError, cf.set, "sect", "option2", 1.0)
+        self.assertRaises(TypeError, cf.set, "sect", "option2", object())
+        self.assertRaises(TypeError, cf.set, "sect", 123, "invalid opt name!")
+        self.assertRaises(TypeError, cf.add_section, 123)
+
+    def test_add_section_default(self):
+        cf = self.newconfig()
+        self.assertRaises(ValueError, cf.add_section, self.default_section)
+
+class ConfigParserTestCaseLegacyInterpolation(ConfigParserTestCase):
+    config_class = configparser.ConfigParser
+    interpolation = configparser.LegacyInterpolation()
+
+    def test_set_malformatted_interpolation(self):
+        cf = self.fromstring("[sect]\n"
+                             "option1{eq}foo\n".format(eq=self.delimiters[0]))
+
+        self.assertEqual(cf.get('sect', "option1"), "foo")
+
+        cf.set("sect", "option1", "%foo")
+        self.assertEqual(cf.get('sect', "option1"), "%foo")
+        cf.set("sect", "option1", "foo%")
+        self.assertEqual(cf.get('sect', "option1"), "foo%")
+        cf.set("sect", "option1", "f%oo")
+        self.assertEqual(cf.get('sect', "option1"), "f%oo")
+
+        # bug #5741: double percents are *not* malformed
+        cf.set("sect", "option2", "foo%%bar")
+        self.assertEqual(cf.get("sect", "option2"), "foo%%bar")
+
+class ConfigParserTestCaseNonStandardDelimiters(ConfigParserTestCase):
+    delimiters = (':=', '$')
+    comment_prefixes = ('//', '"')
+    inline_comment_prefixes = ('//', '"')
+
+class ConfigParserTestCaseNonStandardDefaultSection(ConfigParserTestCase):
+    default_section = 'general'
+
+class MultilineValuesTestCase(BasicTestCase):
+    config_class = configparser.ConfigParser
+    wonderful_spam = ("I'm having spam spam spam spam "
+                      "spam spam spam beaked beans spam "
+                      "spam spam and spam!").replace(' ', '\t\n')
+
+    def setUp(self):
+        cf = self.newconfig()
+        for i in range(100):
+            s = 'section{}'.format(i)
+            cf.add_section(s)
+            for j in range(10):
+                cf.set(s, 'lovely_spam{}'.format(j), self.wonderful_spam)
+        with open(support.TESTFN, 'w') as f:
+            cf.write(f)
+
+    def tearDown(self):
+        os.unlink(support.TESTFN)
+
+    def test_dominating_multiline_values(self):
+        # We're reading from file because this is where the code changed
+        # during performance updates in Python 3.2
+        cf_from_file = self.newconfig()
+        with open(support.TESTFN) as f:
+            cf_from_file.read_file(f)
+        self.assertEqual(cf_from_file.get('section8', 'lovely_spam4'),
+                         self.wonderful_spam.replace('\t\n', '\n'))
+
+class RawConfigParserTestCase(BasicTestCase):
+    config_class = configparser.RawConfigParser
+
+    def test_interpolation(self):
+        cf = self.get_interpolation_config()
+        eq = self.assertEqual
+        eq(cf.get("Foo", "bar"),
+           "something %(with1)s interpolation (1 step)")
+        eq(cf.get("Foo", "bar9"),
+           "something %(with9)s lots of interpolation (9 steps)")
+        eq(cf.get("Foo", "bar10"),
+           "something %(with10)s lots of interpolation (10 steps)")
+        eq(cf.get("Foo", "bar11"),
+           "something %(with11)s lots of interpolation (11 steps)")
+
+    def test_items(self):
+        self.check_items_config([('default', '<default>'),
+                                 ('getdefault', '|%(default)s|'),
+                                 ('key', '|%(name)s|'),
+                                 ('name', '%(value)s'),
+                                 ('value', 'value')])
+
+    def test_set_nonstring_types(self):
+        cf = self.newconfig()
+        cf.add_section('non-string')
+        cf.set('non-string', 'int', 1)
+        cf.set('non-string', 'list', [0, 1, 1, 2, 3, 5, 8, 13])
+        cf.set('non-string', 'dict', {'pi': 3.14159})
+        self.assertEqual(cf.get('non-string', 'int'), 1)
+        self.assertEqual(cf.get('non-string', 'list'),
+                         [0, 1, 1, 2, 3, 5, 8, 13])
+        self.assertEqual(cf.get('non-string', 'dict'), {'pi': 3.14159})
+        cf.add_section(123)
+        cf.set(123, 'this is sick', True)
+        self.assertEqual(cf.get(123, 'this is sick'), True)
+        if cf._dict.__class__ is configparser._default_dict:
+            # would not work for SortedDict; only checking for the most common
+            # default dictionary (OrderedDict)
+            cf.optionxform = lambda x: x
+            cf.set('non-string', 1, 1)
+            self.assertEqual(cf.get('non-string', 1), 1)
+
+class RawConfigParserTestCaseNonStandardDelimiters(RawConfigParserTestCase):
+    delimiters = (':=', '$')
+    comment_prefixes = ('//', '"')
+    inline_comment_prefixes = ('//', '"')
+
+class RawConfigParserTestSambaConf(CfgParserTestCaseClass):
+    config_class = configparser.RawConfigParser
+    comment_prefixes = ('#', ';', '----')
+    inline_comment_prefixes = ('//',)
+    empty_lines_in_values = False
+
+    def test_reading(self):
+        smbconf = support.findfile("cfgparser.2")
+        # check when we pass a mix of readable and non-readable files:
+        cf = self.newconfig()
+        parsed_files = cf.read([smbconf, "nonexistent-file"], encoding='utf-8')
+        self.assertEqual(parsed_files, [smbconf])
+        sections = ['global', 'homes', 'printers',
+                    'print$', 'pdf-generator', 'tmp', 'Agustin']
+        self.assertEqual(cf.sections(), sections)
+        self.assertEqual(cf.get("global", "workgroup"), "MDKGROUP")
+        self.assertEqual(cf.getint("global", "max log size"), 50)
+        self.assertEqual(cf.get("global", "hosts allow"), "127.")
+        self.assertEqual(cf.get("tmp", "echo command"), "cat %s; rm %s")
+
+class ConfigParserTestCaseExtendedInterpolation(BasicTestCase):
+    config_class = configparser.ConfigParser
+    interpolation = configparser.ExtendedInterpolation()
+    default_section = 'common'
+
+    def test_extended_interpolation(self):
+        cf = self.fromstring(textwrap.dedent("""
+            [common]
+            favourite Beatle = Paul
+            favourite color = green
+
+            [tom]
+            favourite band = ${favourite color} day
+            favourite pope = John ${favourite Beatle} II
+            sequel = ${favourite pope}I
+
+            [ambv]
+            favourite Beatle = George
+            son of Edward VII = ${favourite Beatle} V
+            son of George V = ${son of Edward VII}I
+
+            [stanley]
+            favourite Beatle = ${ambv:favourite Beatle}
+            favourite pope = ${tom:favourite pope}
+            favourite color = black
+            favourite state of mind = paranoid
+            favourite movie = soylent ${common:favourite color}
+            favourite song = ${favourite color} sabbath - ${favourite state of mind}
+        """).strip())
+
+        eq = self.assertEqual
+        eq(cf['common']['favourite Beatle'], 'Paul')
+        eq(cf['common']['favourite color'], 'green')
+        eq(cf['tom']['favourite Beatle'], 'Paul')
+        eq(cf['tom']['favourite color'], 'green')
+        eq(cf['tom']['favourite band'], 'green day')
+        eq(cf['tom']['favourite pope'], 'John Paul II')
+        eq(cf['tom']['sequel'], 'John Paul III')
+        eq(cf['ambv']['favourite Beatle'], 'George')
+        eq(cf['ambv']['favourite color'], 'green')
+        eq(cf['ambv']['son of Edward VII'], 'George V')
+        eq(cf['ambv']['son of George V'], 'George VI')
+        eq(cf['stanley']['favourite Beatle'], 'George')
+        eq(cf['stanley']['favourite color'], 'black')
+        eq(cf['stanley']['favourite state of mind'], 'paranoid')
+        eq(cf['stanley']['favourite movie'], 'soylent green')
+        eq(cf['stanley']['favourite pope'], 'John Paul II')
+        eq(cf['stanley']['favourite song'],
+           'black sabbath - paranoid')
+
+    def test_endless_loop(self):
+        cf = self.fromstring(textwrap.dedent("""
+            [one for you]
+            ping = ${one for me:pong}
+
+            [one for me]
+            pong = ${one for you:ping}
+
+            [selfish]
+            me = ${me}
+        """).strip())
+
+        with self.assertRaises(configparser.InterpolationDepthError):
+            cf['one for you']['ping']
+        with self.assertRaises(configparser.InterpolationDepthError):
+            cf['selfish']['me']
+
+    def test_strange_options(self):
+        cf = self.fromstring("""
+            [dollars]
+            $var = $$value
+            $var2 = ${$var}
+            ${sick} = cannot interpolate me
+
+            [interpolated]
+            $other = ${dollars:$var}
+            $trying = ${dollars:${sick}}
+        """)
+
+        self.assertEqual(cf['dollars']['$var'], '$value')
+        self.assertEqual(cf['interpolated']['$other'], '$value')
+        self.assertEqual(cf['dollars']['${sick}'], 'cannot interpolate me')
+        exception_class = configparser.InterpolationMissingOptionError
+        with self.assertRaises(exception_class) as cm:
+            cf['interpolated']['$trying']
+        self.assertEqual(cm.exception.reference, 'dollars:${sick')
+        self.assertEqual(cm.exception.args[2], '}') #rawval
+
+
+    def test_other_errors(self):
+        cf = self.fromstring("""
+            [interpolation fail]
+            case1 = ${where's the brace
+            case2 = ${does_not_exist}
+            case3 = ${wrong_section:wrong_value}
+            case4 = ${i:like:colon:characters}
+            case5 = $100 for Fail No 5!
+        """)
+
+        with self.assertRaises(configparser.InterpolationSyntaxError):
+            cf['interpolation fail']['case1']
+        with self.assertRaises(configparser.InterpolationMissingOptionError):
+            cf['interpolation fail']['case2']
+        with self.assertRaises(configparser.InterpolationMissingOptionError):
+            cf['interpolation fail']['case3']
+        with self.assertRaises(configparser.InterpolationSyntaxError):
+            cf['interpolation fail']['case4']
+        with self.assertRaises(configparser.InterpolationSyntaxError):
+            cf['interpolation fail']['case5']
+        with self.assertRaises(ValueError):
+            cf['interpolation fail']['case6'] = "BLACK $ABBATH"
+
+
+class ConfigParserTestCaseNoValue(ConfigParserTestCase):
+    allow_no_value = True
+
+class ConfigParserTestCaseTrickyFile(CfgParserTestCaseClass):
+    config_class = configparser.ConfigParser
+    delimiters = {'='}
+    comment_prefixes = {'#'}
+    allow_no_value = True
+
+    def test_cfgparser_dot_3(self):
+        tricky = support.findfile("cfgparser.3")
+        cf = self.newconfig()
+        self.assertEqual(len(cf.read(tricky, encoding='utf-8')), 1)
+        self.assertEqual(cf.sections(), ['strange',
+                                         'corruption',
+                                         'yeah, sections can be '
+                                         'indented as well',
+                                         'another one!',
+                                         'no values here',
+                                         'tricky interpolation',
+                                         'more interpolation'])
+        self.assertEqual(cf.getint(self.default_section, 'go',
+                                   vars={'interpolate': '-1'}), -1)
+        with self.assertRaises(ValueError):
+            # no interpolation will happen
+            cf.getint(self.default_section, 'go', raw=True,
+                      vars={'interpolate': '-1'})
+        self.assertEqual(len(cf.get('strange', 'other').split('\n')), 4)
+        self.assertEqual(len(cf.get('corruption', 'value').split('\n')), 10)
+        longname = 'yeah, sections can be indented as well'
+        self.assertFalse(cf.getboolean(longname, 'are they subsections'))
+        self.assertEqual(cf.get(longname, 'lets use some Unicode'), '片仮名')
+        self.assertEqual(len(cf.items('another one!')), 5) # 4 in section and
+                                                           # `go` from DEFAULT
+        with self.assertRaises(configparser.InterpolationMissingOptionError):
+            cf.items('no values here')
+        self.assertEqual(cf.get('tricky interpolation', 'lets'), 'do this')
+        self.assertEqual(cf.get('tricky interpolation', 'lets'),
+                         cf.get('tricky interpolation', 'go'))
+        self.assertEqual(cf.get('more interpolation', 'lets'), 'go shopping')
+
+    def test_unicode_failure(self):
+        tricky = support.findfile("cfgparser.3")
+        cf = self.newconfig()
+        with self.assertRaises(UnicodeDecodeError):
+            cf.read(tricky, encoding='ascii')
+
+
+class Issue7005TestCase(unittest.TestCase):
+    """Test output when None is set() as a value and allow_no_value == False.
+
+    http://bugs.python.org/issue7005
+
+    """
+
+    expected_output = "[section]\noption = None\n\n"
+
+    def prepare(self, config_class):
+        # This is the default, but that's the point.
+        cp = config_class(allow_no_value=False)
+        cp.add_section("section")
+        cp.set("section", "option", None)
+        sio = io.StringIO()
+        cp.write(sio)
+        return sio.getvalue()
+
+    def test_none_as_value_stringified(self):
+        cp = configparser.ConfigParser(allow_no_value=False)
+        cp.add_section("section")
+        with self.assertRaises(TypeError):
+            cp.set("section", "option", None)
+
+    def test_none_as_value_stringified_raw(self):
+        output = self.prepare(configparser.RawConfigParser)
+        self.assertEqual(output, self.expected_output)
+
+
+class SortedTestCase(RawConfigParserTestCase):
+    dict_type = SortedDict
+
+    def test_sorted(self):
+        cf = self.fromstring("[b]\n"
+                             "o4=1\n"
+                             "o3=2\n"
+                             "o2=3\n"
+                             "o1=4\n"
+                             "[a]\n"
+                             "k=v\n")
+        output = io.StringIO()
+        cf.write(output)
+        self.assertEqual(output.getvalue(),
+                         "[a]\n"
+                         "k = v\n\n"
+                         "[b]\n"
+                         "o1 = 4\n"
+                         "o2 = 3\n"
+                         "o3 = 2\n"
+                         "o4 = 1\n\n")
+
+
+class CompatibleTestCase(CfgParserTestCaseClass):
+    config_class = configparser.RawConfigParser
+    comment_prefixes = '#;'
+    inline_comment_prefixes = ';'
+
+    def test_comment_handling(self):
+        config_string = textwrap.dedent("""\
+        [Commented Bar]
+        baz=qwe ; a comment
+        foo: bar # not a comment!
+        # but this is a comment
+        ; another comment
+        quirk: this;is not a comment
+        ; a space must precede an inline comment
+        """)
+        cf = self.fromstring(config_string)
+        self.assertEqual(cf.get('Commented Bar', 'foo'),
+                         'bar # not a comment!')
+        self.assertEqual(cf.get('Commented Bar', 'baz'), 'qwe')
+        self.assertEqual(cf.get('Commented Bar', 'quirk'),
+                         'this;is not a comment')
+
+class CopyTestCase(BasicTestCase):
+    config_class = configparser.ConfigParser
+
+    def fromstring(self, string, defaults=None):
+        cf = self.newconfig(defaults)
+        cf.read_string(string)
+        cf_copy = self.newconfig()
+        cf_copy.read_dict(cf)
+        # we have to clean up option duplicates that appeared because of
+        # the magic DEFAULTSECT behaviour.
+        for section in cf_copy.values():
+            if section.name == self.default_section:
+                continue
+            for default, value in cf[self.default_section].items():
+                if section[default] == value:
+                    del section[default]
+        return cf_copy
+
+class CoverageOneHundredTestCase(unittest.TestCase):
+    """Covers edge cases in the codebase."""
+
+    def test_duplicate_option_error(self):
+        error = configparser.DuplicateOptionError('section', 'option')
+        self.assertEqual(error.section, 'section')
+        self.assertEqual(error.option, 'option')
+        self.assertEqual(error.source, None)
+        self.assertEqual(error.lineno, None)
+        self.assertEqual(error.args, ('section', 'option', None, None))
+        self.assertEqual(str(error), "Option 'option' in section 'section' "
+                                     "already exists")
+
+    def test_interpolation_depth_error(self):
+        error = configparser.InterpolationDepthError('option', 'section',
+                                                     'rawval')
+        self.assertEqual(error.args, ('option', 'section', 'rawval'))
+        self.assertEqual(error.option, 'option')
+        self.assertEqual(error.section, 'section')
+
+    def test_parsing_error(self):
+        with self.assertRaises(ValueError) as cm:
+            configparser.ParsingError()
+        self.assertEqual(str(cm.exception), "Required argument `source' not "
+                                            "given.")
+        with self.assertRaises(ValueError) as cm:
+            configparser.ParsingError(source='source', filename='filename')
+        self.assertEqual(str(cm.exception), "Cannot specify both `filename' "
+                                            "and `source'. Use `source'.")
+        error = configparser.ParsingError(filename='source')
+        self.assertEqual(error.source, 'source')
+        with warnings.catch_warnings(record=True) as w:
+            warnings.simplefilter("always", DeprecationWarning)
+            self.assertEqual(error.filename, 'source')
+            error.filename = 'filename'
+            self.assertEqual(error.source, 'filename')
+        for warning in w:
+            self.assertTrue(warning.category is DeprecationWarning)
+
+    def test_interpolation_validation(self):
+        parser = configparser.ConfigParser()
+        parser.read_string("""
+            [section]
+            invalid_percent = %
+            invalid_reference = %(()
+            invalid_variable = %(does_not_exist)s
+        """)
+        with self.assertRaises(configparser.InterpolationSyntaxError) as cm:
+            parser['section']['invalid_percent']
+        self.assertEqual(str(cm.exception), "'%' must be followed by '%' or "
+                                            "'(', found: '%'")
+        with self.assertRaises(configparser.InterpolationSyntaxError) as cm:
+            parser['section']['invalid_reference']
+        self.assertEqual(str(cm.exception), "bad interpolation variable "
+                                            "reference '%(()'")
+
+    def test_readfp_deprecation(self):
+        sio = io.StringIO("""
+        [section]
+        option = value
+        """)
+        parser = configparser.ConfigParser()
+        with warnings.catch_warnings(record=True) as w:
+            warnings.simplefilter("always", DeprecationWarning)
+            parser.readfp(sio, filename='StringIO')
+        for warning in w:
+            self.assertTrue(warning.category is DeprecationWarning)
+        self.assertEqual(len(parser), 2)
+        self.assertEqual(parser['section']['option'], 'value')
+
+    def test_safeconfigparser_deprecation(self):
+        with warnings.catch_warnings(record=True) as w:
+            warnings.simplefilter("always", DeprecationWarning)
+            parser = configparser.SafeConfigParser()
+        for warning in w:
+            self.assertTrue(warning.category is DeprecationWarning)
+
+    def test_sectionproxy_repr(self):
+        parser = configparser.ConfigParser()
+        parser.read_string("""
+            [section]
+            key = value
+        """)
+        self.assertEqual(repr(parser['section']), '<Section: section>')
+
+def test_main():
+    support.run_unittest(
+        ConfigParserTestCase,
+        ConfigParserTestCaseNonStandardDelimiters,
+        ConfigParserTestCaseNoValue,
+        ConfigParserTestCaseExtendedInterpolation,
+        ConfigParserTestCaseLegacyInterpolation,
+        ConfigParserTestCaseTrickyFile,
+        MultilineValuesTestCase,
+        RawConfigParserTestCase,
+        RawConfigParserTestCaseNonStandardDelimiters,
+        RawConfigParserTestSambaConf,
+        SortedTestCase,
+        Issue7005TestCase,
+        StrictTestCase,
+        CompatibleTestCase,
+        CopyTestCase,
+        ConfigParserTestCaseNonStandardDefaultSection,
+        CoverageOneHundredTestCase,
+        )