cpython/Lib/test/test_cfgparser.py

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import ConfigParser
import StringIO
from test_support import TestFailed
def basic(src):
print
print "Testing basic accessors..."
cf = ConfigParser.ConfigParser()
sio = StringIO.StringIO(src)
cf.readfp(sio)
L = cf.sections()
L.sort()
print L
for s in L:
print "%s: %s" % (s, cf.options(s))
# The use of spaces in the section names serves as a regression test for
# SourceForge bug #115357.
# http://sourceforge.net/bugs/?func=detailbug&group_id=5470&bug_id=115357
print `cf.get('Foo Bar', 'foo', raw=1)`
print `cf.get('Spacey Bar', 'foo', raw=1)`
print `cf.get('Commented Bar', 'foo', raw=1)`
if '__name__' in cf.options("Foo Bar"):
print '__name__ "option" should not be exposed by the API!'
else:
print '__name__ "option" properly hidden by the API.'
# Make sure the right things happen for remove_option();
# added to include check for SourceForge bug #123324:
if not cf.remove_option('Foo Bar', 'foo'):
raise TestFailed(
"remove_option() failed to report existance of option")
if cf.has_option('Foo Bar', 'foo'):
raise TestFailed("remove_option() failed to remove option")
if cf.remove_option('Foo Bar', 'foo'):
raise TestFailed(
"remove_option() failed to report non-existance of option"
" that was removed")
try:
cf.remove_option('No Such Section', 'foo')
except ConfigParser.NoSectionError:
pass
else:
raise TestFailed(
"remove_option() failed to report non-existance of option"
" that never existed")
def interpolation(src):
print
print "Testing value interpolation..."
cf = ConfigParser.ConfigParser({"getname": "%(__name__)s"})
sio = StringIO.StringIO(src)
cf.readfp(sio)
print `cf.get("Foo", "getname")`
print `cf.get("Foo", "bar")`
print `cf.get("Foo", "bar9")`
print `cf.get("Foo", "bar10")`
expect_get_error(cf, ConfigParser.InterpolationDepthError, "Foo", "bar11")
def parse_errors():
print
print "Testing for parsing errors..."
expect_parse_error(ConfigParser.ParsingError,
"""[Foo]\n extra-spaces: splat\n""")
expect_parse_error(ConfigParser.ParsingError,
"""[Foo]\n extra-spaces= splat\n""")
expect_parse_error(ConfigParser.ParsingError,
"""[Foo]\noption-without-value\n""")
expect_parse_error(ConfigParser.ParsingError,
"""[Foo]\n:value-without-option-name\n""")
expect_parse_error(ConfigParser.ParsingError,
"""[Foo]\n=value-without-option-name\n""")
expect_parse_error(ConfigParser.MissingSectionHeaderError,
"""No Section!\n""")
def query_errors():
print
print "Testing query interface..."
cf = ConfigParser.ConfigParser()
print cf.sections()
print "Has section 'Foo'?", cf.has_section("Foo")
try:
cf.options("Foo")
except ConfigParser.NoSectionError, e:
print "Caught expected NoSectionError:", e
else:
print "Failed to catch expected NoSectionError from options()"
try:
cf.set("foo", "bar", "value")
except ConfigParser.NoSectionError, e:
print "Caught expected NoSectionError:", e
else:
print "Failed to catch expected NoSectionError from set()"
expect_get_error(cf, ConfigParser.NoSectionError, "foo", "bar")
cf.add_section("foo")
expect_get_error(cf, ConfigParser.NoOptionError, "foo", "bar")
def weird_errors():
print
print "Testing miscellaneous error conditions..."
cf = ConfigParser.ConfigParser()
cf.add_section("Foo")
try:
cf.add_section("Foo")
except ConfigParser.DuplicateSectionError, e:
print "Caught expected DuplicateSectionError:", e
else:
print "Failed to catch expected DuplicateSectionError"
def expect_get_error(cf, exctype, section, option, raw=0):
try:
cf.get(section, option, raw=raw)
except exctype, e:
print "Caught expected", exctype.__name__, ":"
print e
else:
print "Failed to catch expected", exctype.__name__
def expect_parse_error(exctype, src):
cf = ConfigParser.ConfigParser()
sio = StringIO.StringIO(src)
try:
cf.readfp(sio)
except exctype, e:
print "Caught expected exception:", e
else:
print "Failed to catch expected", exctype.__name__
basic(r"""
[Foo Bar]
foo=bar
[Spacey Bar]
foo = bar
[Commented Bar]
foo: bar ; comment
""")
interpolation(r"""
[Foo]
bar=something %(with1)s interpolation (1 step)
bar9=something %(with9)s lots of interpolation (9 steps)
bar10=something %(with10)s lots of interpolation (10 steps)
bar11=something %(with11)s lots of interpolation (11 steps)
with11=%(with10)s
with10=%(with9)s
with9=%(with8)s
with8=%(with7)s
with7=%(with6)s
with6=%(with5)s
with5=%(with4)s
with4=%(with3)s
with3=%(with2)s
with2=%(with1)s
with1=with
[Mutual Recursion]
foo=%(bar)s
bar=%(foo)s
""")
parse_errors()
query_errors()
weird_errors()