twisted.names.test.test_dns.OPTHeaderTests(ComparisonTestsMixin, unittest.TestCase) class documentationtwisted.names.test.test_dns
(View In Hierarchy)
Tests for twisted.names.dns._OPTHeader.
| Method | test_interface | dns._OPTHeaderimplementsdns.IEncodable. | 
| Method | test_name | dns._OPTHeader.nameis an instance attribute whose value is fixed as the root domain | 
| Method | test_nameReadonly | dns._OPTHeader.nameis readonly. | 
| Method | test_type | dns._OPTHeader.typeis an instance attribute with fixed value 41. | 
| Method | test_typeReadonly | dns._OPTHeader.typeis readonly. | 
| Method | test_udpPayloadSize | dns._OPTHeader.udpPayloadSizedefaults to 4096 as 
recommended in rfc6891 section-6.2.5. | 
| Method | test_udpPayloadSizeOverride | dns._OPTHeader.udpPayloadSizecan be overridden in the 
constructor. | 
| Method | test_extendedRCODE | dns._OPTHeader.extendedRCODEdefaults to 0. | 
| Method | test_extendedRCODEOverride | dns._OPTHeader.extendedRCODEcan be overridden in the 
constructor. | 
| Method | test_version | dns._OPTHeader.versiondefaults to 0. | 
| Method | test_versionOverride | dns._OPTHeader.versioncan be overridden in the 
constructor. | 
| Method | test_dnssecOK | dns._OPTHeader.dnssecOKdefaults to False. | 
| Method | test_dnssecOKOverride | dns._OPTHeader.dnssecOKcan be overridden in the 
constructor. | 
| Method | test_options | dns._OPTHeader.optionsdefaults to empty list. | 
| Method | test_optionsOverride | dns._OPTHeader.optionscan be overridden in the 
constructor. | 
| Method | test_encode | dns._OPTHeader.encodepacks the header fields and writes them to a file like object passed in as 
an argument. | 
| Method | test_encodeWithOptions | dns._OPTHeader.optionsis a list ofdns._OPTVariableOptioninstances which are packed into the rdata area of the header. | 
| Method | test_decode | dns._OPTHeader.decodeunpacks the header fields from a file like object and populates the 
attributes of an existingdns._OPTHeaderinstance. | 
| Method | test_decodeAllExpectedBytes | dns._OPTHeader.decodereads all the bytes of the record that is being decoded. | 
| Method | test_decodeOnlyExpectedBytes | dns._OPTHeader.decodereads only the bytes from the current file position to the end of the 
record that is being decoded. Trailing bytes are not consumed. | 
| Method | test_decodeDiscardsName | dns._OPTHeader.decodediscards the name which is encoded in the supplied bytes. The name 
attribute of the resultingdns._OPTHeaderinstance will always bedns.Name(b''). | 
| Method | test_decodeRdlengthTooShort | dns._OPTHeader.decoderaises an exception if the supplied RDLEN is too short. | 
| Method | test_decodeRdlengthTooLong | dns._OPTHeader.decoderaises an exception if the supplied RDLEN is too long. | 
| Method | test_decodeWithOptions | No summary | 
| Method | test_fromRRHeader | No summary | 
| Method | test_repr | dns._OPTHeader.__repr__displays the name and type and all 
the fixed and extended header values of the OPT record. | 
| Method | test_equalityUdpPayloadSize | Two OPTHeaderinstances compare equal if they have the same
udpPayloadSize. | 
| Method | test_equalityExtendedRCODE | Two OPTHeaderinstances compare equal if they have the same
extendedRCODE. | 
| Method | test_equalityVersion | Two OPTHeaderinstances compare equal if they have the same
version. | 
| Method | test_equalityDnssecOK | Two OPTHeaderinstances compare equal if they have the same
dnssecOK flags. | 
| Method | test_equalityOptions | Two OPTHeaderinstances compare equal if they have the same
options. | 
Inherited from ComparisonTestsMixin:
| Method | assertNormalEqualityImplementation | Assert that firstValueOneis equal tosecondValueOnebut not equal tovalueOneand that
it defines equality cooperatively with other types it doesn't know 
about. | 
Inherited from TestCase:
| Instance Variable | timeout | A real number of seconds. If set, the test will raise an error if it takes 
longer than timeoutseconds. If not set, 
util.DEFAULT_TIMEOUT_DURATION is used. | 
| Method | __init__ | Construct an asynchronous test case for methodName. | 
| Method | assertFailure | Fail if deferreddoes not errback with one ofexpectedFailures. Returns the original Deferred with callbacks
added. You will need to return this Deferred from your test case. | 
| Method | __call__ | Run the test. Should always do exactly the same thing as run(). | 
| Method | deferSetUp | Undocumented | 
| Method | deferTestMethod | Undocumented | 
| Method | deferTearDown | Undocumented | 
| Method | deferRunCleanups | Run any scheduled cleanups and report errors (if any to the result object. | 
| Method | addCleanup | Extend the base cleanup feature with support for cleanup functions which return Deferreds. | 
| Method | getSuppress | Undocumented | 
| Method | getTimeout | No summary | 
| Method | _run | Run a single method, either a test method or fixture. | 
| Method | _ebDeferSetUp | Undocumented | 
| Method | _cbDeferTestMethod | Undocumented | 
| Method | _ebDeferTestMethod | Undocumented | 
| Method | _ebDeferTearDown | Undocumented | 
| Method | _cbDeferRunCleanups | Undocumented | 
| Method | _cleanUp | Undocumented | 
| Method | _classCleanUp | Undocumented | 
| Method | _makeReactorMethod | Create a method which wraps the reactor method name. The 
new method issues a deprecation warning and calls the original. | 
| Method | _deprecateReactor | Deprecate iterate,crashandstoponreactor. That is, each method is wrapped in a function that
issues a deprecation warning, then calls the original. | 
| Method | _undeprecateReactor | Restore the deprecated reactor methods. Undoes what _deprecateReactordid. | 
| Method | _runCleanups | Run the cleanups added with addCleanupin order. | 
| Method | _runFixturesAndTest | Really run setUp, the test method, andtearDown.  Any of these may returndefer.Deferreds.
After they complete, do some reactor cleanup. | 
| Method | _wait | Take a Deferred that only ever callbacks. Block until it happens. | 
Inherited from SynchronousTestCase (via TestCase):
| Instance Variable | failureException | An exception class, defaulting to FailTest. If the test method
raises this exception, it will be reported as a failure, rather than an 
exception. All of the assertion methods raise this if the assertion fails. | 
| Instance Variable | skip | Noneor a string explaining why this test is to be skipped. If defined, the test
will not be run. Instead, it will be reported to the result object as 
'skipped' (if theTestResultsupports skipping). | 
| Instance Variable | todo | None,
a string or a tuple of(errors, reason)whereerrorsis either an exception class or an iterable of 
exception classes, andreasonis a string. SeeTodoormakeTodofor 
more information. | 
| Instance Variable | suppress | Noneor a list of tuples of(args, kwargs)to be passed towarnings.filterwarnings. Use these to suppress warnings raised
in a test. Useful for testing deprecated code. See alsoutil.suppress. | 
| Method | __eq__ | No summary | 
| Method | __ne__ | Undocumented | 
| Method | __hash__ | Undocumented | 
| Method | shortDescription | Undocumented | 
| Method | getSkip | No summary | 
| Method | getTodo | No summary | 
| Method | runTest | If no methodNameargument is passed to the constructor,runwill treat this method as the thing with the actual test inside. | 
| Method | run | Run the test case, storing the results in result. | 
| Method | patch | Monkey patch an object for the duration of the test. | 
| Method | flushLoggedErrors | Remove stored errors received from the log. | 
| Method | flushWarnings | Remove stored warnings from the list of captured warnings and return them. | 
| Method | callDeprecated | Call a function that should have been deprecated at a specific version and in favor of a specific alternative, and assert that it was thusly deprecated. | 
| Method | mktemp | Create a new path name which can be used for a new file or directory. | 
| Method | _getSuppress | No summary | 
| Method | _getSkipReason | Return the reason to use for skipping a test method. | 
| Method | _installObserver | Undocumented | 
| Method | _removeObserver | Undocumented | 
Inherited from _Assertions (via TestCase, SynchronousTestCase):
| Method | fail | Absolutely fail the test. Do not pass go, do not collect $200. | 
| Method | assertFalse | Fail the test if conditionevaluates to True. | 
| Method | assertTrue | Fail the test if conditionevaluates to False. | 
| Method | assertRaises | Fail the test unless calling the function fwith the givenargsandkwargsraisesexception. 
The failure will report the traceback and call stack of the unexpected 
exception. | 
| Method | assertEqual | Fail the test if firstandsecondare not 
equal. | 
| Method | assertIs | Fail the test if firstis notsecond.  This is
an obect-identity-equality test, not an object equality (i.e.__eq__) test. | 
| Method | assertIsNot | Fail the test if firstissecond.  This is an 
obect-identity-equality test, not an object equality (i.e.__eq__) test. | 
| Method | assertNotEqual | Fail the test if first==second. | 
| Method | assertIn | Fail the test if containeeis not found incontainer. | 
| Method | assertNotIn | Fail the test if containeeis found incontainer. | 
| Method | assertNotAlmostEqual | Fail if the two objects are equal as determined by their difference rounded to the given number of decimal places (default 7) and comparing to zero. | 
| Method | assertAlmostEqual | Fail if the two objects are unequal as determined by their difference rounded to the given number of decimal places (default 7) and comparing to zero. | 
| Method | assertApproximates | Fail if first-second>tolerance | 
| Method | assertSubstring | Fail if substringdoes not exist withinastring. | 
| Method | assertNotSubstring | Fail if astringcontainssubstring. | 
| Method | assertWarns | Fail if the given function doesn't generate the specified warning when called. It calls the function, checks the warning, and forwards the result of the function if everything is fine. | 
| Method | assertIsInstance | Fail if instanceis not an instance of the given class or 
of one of the given classes. | 
| Method | assertNotIsInstance | Fail if instanceis an instance of the given class or of 
one of the given classes. | 
| Method | successResultOf | Return the current success result of deferredor raiseself.failureException. | 
| Method | failureResultOf | Return the current failure result of deferredor raiseself.failureException. | 
| Method | assertNoResult | Assert that deferreddoes not have a result at this 
point. | 
| Method | assertRegex | Fail the test if a regexpsearch oftextfails. | 
dns._OPTHeader.name
is an instance attribute whose value is fixed as the root domain
dns._OPTHeader.udpPayloadSize defaults to 4096 as 
recommended in rfc6891 section-6.2.5.
dns._OPTHeader.udpPayloadSize can be overridden in the 
constructor.
dns._OPTHeader.extendedRCODE can be overridden in the 
constructor.
dns._OPTHeader.encode
packs the header fields and writes them to a file like object passed in as 
an argument.
dns._OPTHeader.options is a list of dns._OPTVariableOption
instances which are packed into the rdata area of the header.
dns._OPTHeader.decode
unpacks the header fields from a file like object and populates the 
attributes of an existing dns._OPTHeader 
instance.
dns._OPTHeader.decode
reads all the bytes of the record that is being decoded.
dns._OPTHeader.decode
reads only the bytes from the current file position to the end of the 
record that is being decoded. Trailing bytes are not consumed.
dns._OPTHeader.decode
discards the name which is encoded in the supplied bytes. The name 
attribute of the resulting dns._OPTHeader 
instance will always be dns.Name(b'').
dns._OPTHeader.decode
raises an exception if the supplied RDLEN is too short.
dns._OPTHeader.decode
raises an exception if the supplied RDLEN is too long.
If the OPT bytes contain variable options, dns._OPTHeader.decode
will populate a list dns._OPTHeader.options with dns._OPTVariableOption
instances.
_OPTHeader.fromRRHeader
accepts an RRHeader instance 
and returns an _OPTHeader 
instance whose attribute values have been derived from the 
cls, ttl and payload attributes of 
the original header.
dns._OPTHeader.__repr__ displays the name and type and all 
the fixed and extended header values of the OPT record.
Two OPTHeader instances compare equal if they have the same
udpPayloadSize.
Two OPTHeader instances compare equal if they have the same
extendedRCODE.
Two OPTHeader instances compare equal if they have the same
version.