cpython/Lib/test/test_cfgparser.py

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import ConfigParser
import StringIO
import os
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import unittest
import UserDict
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from test import test_support
class SortedDict(UserDict.UserDict):
def items(self):
result = self.data.items()
result.sort()
return result
def keys(self):
result = self.data.keys()
result.sort()
return result
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def values(self):
# XXX never used?
result = self.items()
return [i[1] for i in result]
def iteritems(self): return iter(self.items())
def iterkeys(self): return iter(self.keys())
__iter__ = iterkeys
def itervalues(self): return iter(self.values())
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class TestCaseBase(unittest.TestCase):
allow_no_value = False
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def newconfig(self, defaults=None):
if defaults is None:
self.cf = self.config_class(allow_no_value=self.allow_no_value)
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else:
self.cf = self.config_class(defaults,
allow_no_value=self.allow_no_value)
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return self.cf
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def fromstring(self, string, defaults=None):
cf = self.newconfig(defaults)
sio = StringIO.StringIO(string)
cf.readfp(sio)
return cf
def test_basic(self):
config_string = (
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"[Foo Bar]\n"
"foo=bar\n"
"[Spacey Bar]\n"
"foo = bar\n"
"[Commented Bar]\n"
"foo: bar ; comment\n"
"[Long Line]\n"
"foo: this line is much, much longer than my editor\n"
" likes it.\n"
"[Section\\with$weird%characters[\t]\n"
"[Internationalized Stuff]\n"
"foo[bg]: Bulgarian\n"
"foo=Default\n"
"foo[en]=English\n"
"foo[de]=Deutsch\n"
"[Spaces]\n"
"key with spaces : value\n"
"another with spaces = splat!\n"
)
if self.allow_no_value:
config_string += (
"[NoValue]\n"
"option-without-value\n"
)
cf = self.fromstring(config_string)
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L = cf.sections()
L.sort()
E = [r'Commented Bar',
r'Foo Bar',
r'Internationalized Stuff',
r'Long Line',
r'Section\with$weird%characters[' '\t',
r'Spaces',
r'Spacey Bar',
]
if self.allow_no_value:
E.append(r'NoValue')
E.sort()
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eq = self.assertEqual
eq(L, E)
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# The use of spaces in the section names serves as a
# regression test for SourceForge bug #583248:
# http://www.python.org/sf/583248
eq(cf.get('Foo Bar', 'foo'), 'bar')
eq(cf.get('Spacey Bar', 'foo'), 'bar')
eq(cf.get('Commented Bar', 'foo'), 'bar')
eq(cf.get('Spaces', 'key with spaces'), 'value')
eq(cf.get('Spaces', 'another with spaces'), 'splat!')
if self.allow_no_value:
eq(cf.get('NoValue', 'option-without-value'), None)
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self.assertNotIn('__name__', cf.options("Foo Bar"),
'__name__ "option" should not be exposed by the API!')
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# Make sure the right things happen for remove_option();
# added to include check for SourceForge bug #123324:
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self.assertTrue(cf.remove_option('Foo Bar', 'foo'),
"remove_option() failed to report existence of option")
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self.assertFalse(cf.has_option('Foo Bar', 'foo'),
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"remove_option() failed to remove option")
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self.assertFalse(cf.remove_option('Foo Bar', 'foo'),
"remove_option() failed to report non-existence of option"
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" that was removed")
self.assertRaises(ConfigParser.NoSectionError,
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cf.remove_option, 'No Such Section', 'foo')
eq(cf.get('Long Line', 'foo'),
'this line is much, much longer than my editor\nlikes it.')
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def test_case_sensitivity(self):
cf = self.newconfig()
cf.add_section("A")
cf.add_section("a")
L = cf.sections()
L.sort()
eq = self.assertEqual
eq(L, ["A", "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")
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self.assertTrue(cf.has_option("a", "b"))
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cf.set("A", "A-B", "A-B value")
for opt in ("a-b", "A-b", "a-B", "A-B"):
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self.assertTrue(
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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")
eq(cf.options("MySection"), ["option"])
eq(cf.get("MySection", "Option"), "first line\nsecond line")
# SF bug #561822:
cf = self.fromstring("[section]\nnekey=nevalue\n",
defaults={"key":"value"})
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self.assertTrue(cf.has_option("section", "Key"))
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def test_default_case_sensitivity(self):
cf = self.newconfig({"foo": "Bar"})
self.assertEqual(
cf.get("DEFAULT", "Foo"), "Bar",
"could not locate option, expecting case-insensitive option names")
cf = self.newconfig({"Foo": "Bar"})
self.assertEqual(
cf.get("DEFAULT", "Foo"), "Bar",
"could not locate option, expecting case-insensitive defaults")
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def test_parse_errors(self):
self.newconfig()
self.parse_error(ConfigParser.ParsingError,
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"[Foo]\n extra-spaces: splat\n")
self.parse_error(ConfigParser.ParsingError,
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"[Foo]\n extra-spaces= splat\n")
self.parse_error(ConfigParser.ParsingError,
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"[Foo]\n:value-without-option-name\n")
self.parse_error(ConfigParser.ParsingError,
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"[Foo]\n=value-without-option-name\n")
self.parse_error(ConfigParser.MissingSectionHeaderError,
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"No Section!\n")
def parse_error(self, exc, src):
sio = StringIO.StringIO(src)
self.assertRaises(exc, self.cf.readfp, sio)
def test_query_errors(self):
cf = self.newconfig()
self.assertEqual(cf.sections(), [],
"new ConfigParser should have no defined sections")
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self.assertFalse(cf.has_section("Foo"),
"new ConfigParser should have no acknowledged "
"sections")
self.assertRaises(ConfigParser.NoSectionError,
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cf.options, "Foo")
self.assertRaises(ConfigParser.NoSectionError,
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cf.set, "foo", "bar", "value")
self.get_error(ConfigParser.NoSectionError, "foo", "bar")
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cf.add_section("foo")
self.get_error(ConfigParser.NoOptionError, "foo", "bar")
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def get_error(self, exc, section, option):
try:
self.cf.get(section, option)
except exc, e:
return e
else:
self.fail("expected exception type %s.%s"
% (exc.__module__, exc.__name__))
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def test_boolean(self):
cf = self.fromstring(
"[BOOLTEST]\n"
"T1=1\n"
"T2=TRUE\n"
"T3=True\n"
"T4=oN\n"
"T5=yes\n"
"F1=0\n"
"F2=FALSE\n"
"F3=False\n"
"F4=oFF\n"
"F5=nO\n"
"E1=2\n"
"E2=foo\n"
"E3=-1\n"
"E4=0.1\n"
"E5=FALSE AND MORE"
)
for x in range(1, 5):
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self.assertTrue(cf.getboolean('BOOLTEST', 't%d' % x))
self.assertFalse(cf.getboolean('BOOLTEST', 'f%d' % x))
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self.assertRaises(ValueError,
cf.getboolean, 'BOOLTEST', 'e%d' % x)
def test_weird_errors(self):
cf = self.newconfig()
cf.add_section("Foo")
self.assertRaises(ConfigParser.DuplicateSectionError,
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cf.add_section, "Foo")
def test_write(self):
config_string = (
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"[Long Line]\n"
"foo: this line is much, much longer than my editor\n"
" likes it.\n"
"[DEFAULT]\n"
"foo: another very\n"
" long line\n"
)
if self.allow_no_value:
config_string += (
"[Valueless]\n"
"option-without-value\n"
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)
cf = self.fromstring(config_string)
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output = StringIO.StringIO()
cf.write(output)
expect_string = (
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"[DEFAULT]\n"
"foo = another very\n"
"\tlong line\n"
"\n"
"[Long Line]\n"
"foo = this line is much, much longer than my editor\n"
"\tlikes it.\n"
"\n"
)
if self.allow_no_value:
expect_string += (
"[Valueless]\n"
"option-without-value\n"
"\n"
)
self.assertEqual(output.getvalue(), expect_string)
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def test_set_string_types(self):
cf = self.fromstring("[sect]\n"
"option1=foo\n")
# 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"))
try:
unicode
except NameError:
pass
else:
cf.set("sect", "option1", unicode("splat"))
cf.set("sect", "option2", unicode("splat"))
def test_read_returns_file_list(self):
file1 = test_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, [])
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# shared by subclasses
def get_interpolation_config(self):
return self.fromstring(
"[Foo]\n"
"bar=something %(with1)s interpolation (1 step)\n"
"bar9=something %(with9)s lots of interpolation (9 steps)\n"
"bar10=something %(with10)s lots of interpolation (10 steps)\n"
"bar11=something %(with11)s lots of interpolation (11 steps)\n"
"with11=%(with10)s\n"
"with10=%(with9)s\n"
"with9=%(with8)s\n"
"with8=%(With7)s\n"
"with7=%(WITH6)s\n"
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"with6=%(with5)s\n"
"With5=%(with4)s\n"
"WITH4=%(with3)s\n"
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"with3=%(with2)s\n"
"with2=%(with1)s\n"
"with1=with\n"
"\n"
"[Mutual Recursion]\n"
"foo=%(bar)s\n"
"bar=%(foo)s\n"
"\n"
"[Interpolation Error]\n"
"name=%(reference)s\n",
# no definition for 'reference'
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defaults={"getname": "%(__name__)s"})
def check_items_config(self, expected):
cf = self.fromstring(
"[section]\n"
"name = value\n"
"key: |%(name)s| \n"
"getdefault: |%(default)s|\n"
"getname: |%(__name__)s|",
defaults={"default": "<default>"})
L = list(cf.items("section"))
L.sort()
self.assertEqual(L, expected)
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class ConfigParserTestCase(TestCaseBase):
config_class = ConfigParser.ConfigParser
allow_no_value = True
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def test_interpolation(self):
rawval = {
ConfigParser.ConfigParser: ("something %(with11)s "
"lots of interpolation (11 steps)"),
ConfigParser.SafeConfigParser: "%(with1)s",
}
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cf = self.get_interpolation_config()
eq = self.assertEqual
eq(cf.get("Foo", "getname"), "Foo")
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)")
self.get_error(ConfigParser.InterpolationDepthError, "Foo", "bar11")
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def test_interpolation_missing_value(self):
self.get_interpolation_config()
e = self.get_error(ConfigParser.InterpolationError,
"Interpolation Error", "name")
self.assertEqual(e.reference, "reference")
self.assertEqual(e.section, "Interpolation Error")
self.assertEqual(e.option, "name")
def test_items(self):
self.check_items_config([('default', '<default>'),
('getdefault', '|<default>|'),
('getname', '|section|'),
('key', '|value|'),
('name', '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, '%(': 1,
'%(list)': '%(list)'})
cf.set('non-string', 'string_with_interpolation', '%(list)s')
cf.set('non-string', 'no-value')
self.assertEqual(cf.get('non-string', 'int', raw=True), 1)
self.assertRaises(TypeError, cf.get, 'non-string', 'int')
self.assertEqual(cf.get('non-string', 'list', raw=True),
[0, 1, 1, 2, 3, 5, 8, 13, '%('])
self.assertRaises(TypeError, cf.get, 'non-string', 'list')
self.assertEqual(cf.get('non-string', 'dict', raw=True),
{'pi': 3.14159, '%(': 1, '%(list)': '%(list)'})
self.assertRaises(TypeError, cf.get, 'non-string', 'dict')
self.assertEqual(cf.get('non-string', 'string_with_interpolation',
raw=True), '%(list)s')
self.assertRaises(ValueError, cf.get, 'non-string',
'string_with_interpolation', raw=False)
self.assertEqual(cf.get('non-string', 'no-value'), None)
class MultilineValuesTestCase(TestCaseBase):
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(test_support.TESTFN, 'w') as f:
cf.write(f)
def tearDown(self):
os.unlink(test_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(test_support.TESTFN) as f:
cf_from_file.readfp(f)
self.assertEqual(cf_from_file.get('section8', 'lovely_spam4'),
self.wonderful_spam.replace('\t\n', '\n'))
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class RawConfigParserTestCase(TestCaseBase):
config_class = ConfigParser.RawConfigParser
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def test_interpolation(self):
cf = self.get_interpolation_config()
eq = self.assertEqual
eq(cf.get("Foo", "getname"), "%(__name__)s")
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|'),
('getname', '|%(__name__)s|'),
('key', '|%(name)s|'),
('name', '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})
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class SafeConfigParserTestCase(ConfigParserTestCase):
config_class = ConfigParser.SafeConfigParser
def test_safe_interpolation(self):
# See http://www.python.org/sf/511737
cf = self.fromstring("[section]\n"
"option1=xxx\n"
"option2=%(option1)s/xxx\n"
"ok=%(option1)s/%%s\n"
"not_ok=%(option2)s/%%s")
self.assertEqual(cf.get("section", "ok"), "xxx/%s")
self.assertEqual(cf.get("section", "not_ok"), "xxx/xxx/%s")
def test_set_malformatted_interpolation(self):
cf = self.fromstring("[sect]\n"
"option1=foo\n")
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=foo\n")
# 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())
def test_add_section_default_1(self):
cf = self.newconfig()
self.assertRaises(ValueError, cf.add_section, "default")
def test_add_section_default_2(self):
cf = self.newconfig()
self.assertRaises(ValueError, cf.add_section, "DEFAULT")
class SafeConfigParserTestCaseNoValue(SafeConfigParserTestCase):
allow_no_value = True
class TestChainMap(unittest.TestCase):
def test_issue_12717(self):
d1 = dict(red=1, green=2)
d2 = dict(green=3, blue=4)
dcomb = d2.copy()
dcomb.update(d1)
cm = ConfigParser._Chainmap(d1, d2)
self.assertIsInstance(cm.keys(), list)
self.assertEqual(set(cm.keys()), set(dcomb.keys())) # keys()
self.assertEqual(set(cm.values()), set(dcomb.values())) # values()
self.assertEqual(set(cm.items()), set(dcomb.items())) # items()
self.assertEqual(set(cm), set(dcomb)) # __iter__ ()
self.assertEqual(cm, dcomb) # __eq__()
self.assertEqual([cm[k] for k in dcomb], dcomb.values()) # __getitem__()
klist = 'red green blue black brown'.split()
self.assertEqual([cm.get(k, 10) for k in klist],
[dcomb.get(k, 10) for k in klist]) # get()
self.assertEqual([k in cm for k in klist],
[k in dcomb for k in klist]) # __contains__()
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with test_support.check_py3k_warnings():
self.assertEqual([cm.has_key(k) for k in klist],
[dcomb.has_key(k) for k in klist]) # has_key()
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 = StringIO.StringIO()
cp.write(sio)
return sio.getvalue()
def test_none_as_value_stringified(self):
output = self.prepare(ConfigParser.ConfigParser)
self.assertEqual(output, self.expected_output)
def test_none_as_value_stringified_raw(self):
output = self.prepare(ConfigParser.RawConfigParser)
self.assertEqual(output, self.expected_output)
class SortedTestCase(RawConfigParserTestCase):
def newconfig(self, defaults=None):
self.cf = self.config_class(defaults=defaults, dict_type=SortedDict)
return self.cf
def test_sorted(self):
self.fromstring("[b]\n"
"o4=1\n"
"o3=2\n"
"o2=3\n"
"o1=4\n"
"[a]\n"
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"k=v\n")
output = StringIO.StringIO()
self.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")
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def test_main():
test_support.run_unittest(
ConfigParserTestCase,
MultilineValuesTestCase,
RawConfigParserTestCase,
SafeConfigParserTestCase,
SafeConfigParserTestCaseNoValue,
SortedTestCase,
Issue7005TestCase,
TestChainMap,
)
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if __name__ == "__main__":
test_main()