twisted.pair.test.test_tuntap.TapTests(TunnelTestsMixin, SynchronousTestCase)
class documentationtwisted.pair.test.test_tuntap
(View In Hierarchy)
Tests for TuntapPort
when
used to open a Linux tap tunnel.
Inherited from TunnelTestsMixin:
Method | setUp | Create an in-memory I/O system and set up a TuntapPort
against it. |
Method | test_startListeningOpensDevice | TuntapPort.startListening
opens the tunnel factory character special device
"/dev/net/tun" and configures it as a tun
tunnel. |
Method | test_startListeningSetsConnected | TuntapPort.startListening
sets connected on the port object to True . |
Method | test_startListeningConnectsProtocol | TuntapPort.startListening
calls makeConnection on the protocol the port was initialized
with, passing the port as an argument. |
Method | test_startListeningStartsReading | TuntapPort.startListening
passes the port instance to the reactor's addReader method to
begin watching the port's file descriptor for data to read. |
Method | test_startListeningHandlesOpenFailure | TuntapPort.startListening
raises CannotListenError
if opening the tunnel factory character special device fails. |
Method | test_startListeningHandlesConfigureFailure | TuntapPort.startListening
raises CannotListenError
if the ioctl call to configure the tunnel device fails. |
Method | test_stopListeningStopsReading | TuntapPort.stopListening
returns a Deferred which
fires after the port has been removed from the reactor's reader list by
passing it to the reactor's removeReader method. |
Method | test_stopListeningUnsetsConnected | After the Deferred
returned by TuntapPort.stopListening
fires, the connected attribute of the port object is set to
False . |
Method | test_stopListeningStopsProtocol | TuntapPort.stopListening
calls doStop on the protocol the port was initialized
with. |
Method | test_stopListeningWhenStopped | TuntapPort.stopListening
returns a Deferred which
succeeds immediately if it is called when the port is not listening. |
Method | test_multipleStopListening | It is safe and a no-op to call TuntapPort.stopListening
more than once with no intervening TuntapPort.startListening
call. |
Method | test_loseConnection | TuntapPort.loseConnection
stops the port and is deprecated. |
Method | test_eagainStopsReading | Once TuntapPort.doRead
encounters an EAGAIN errno from a read call, it
returns. |
Method | test_ewouldblockStopsReading | Once TuntapPort.doRead
encounters an EWOULDBLOCK errno from a read call, it
returns. |
Method | test_eintrblockStopsReading | Once TuntapPort.doRead
encounters an EINTR errno from a read call, it
returns. |
Method | test_unhandledReadError | If Tuntap.doRead encounters any exception other than one
explicitly handled by the code, the exception propagates to the caller. |
Method | test_unhandledEnvironmentReadError | Just like test_unhandledReadError , but for the case where
the exception that is not explicitly handled happens to be of type
EnvironmentError (OSError or
IOError ). |
Method | test_doReadSmallDatagram | TuntapPort.doRead
reads a datagram of fewer than TuntapPort.maxPacketSize from
the port's file descriptor and passes it to its protocol's
datagramReceived method. |
Method | test_doReadLargeDatagram | TuntapPort.doRead
reads the first part of a datagram of more than
TuntapPort.maxPacketSize from the port's file descriptor and
passes the truncated data to its protocol's datagramReceived
method. |
Method | test_doReadSeveralDatagrams | TuntapPort.doRead
reads several datagrams, of up to TuntapPort.maxThroughput
bytes total, before returning. |
Method | test_datagramReceivedException | If the protocol's datagramReceived method raises an
exception, the exception is logged. |
Method | test_datagramReceivedExceptionIdentifiesProtocol | The exception raised by datagramReceived is logged with a
message identifying the offending protocol. |
Method | test_write | TuntapPort.write
sends a datagram into the tunnel. |
Method | test_interruptedWrite | If the platform write call is interrupted (causing the Python wrapper to
raise IOError with errno set to EINTR ), the write
is re-tried. |
Method | test_unhandledWriteError | Any exception raised by the underlying write call, except for EINTR, is propagated to the caller. |
Method | test_writeSequence | TuntapPort.writeSequence
sends a datagram into the tunnel by concatenating the byte strings in the
list passed to it. |
Method | test_getHost | TuntapPort.getHost
returns a TunnelAddress
including the tunnel's type and name. |
Method | test_listeningString | The string representation of a TuntapPort
instance includes the tunnel type and interface and the protocol associated
with the port. |
Method | test_unlisteningString | The string representation of a TuntapPort
instance includes the tunnel type and interface and the protocol associated
with the port. |
Method | test_logPrefix | TuntapPort.logPrefix
returns a string identifying the application protocol and the type of
tunnel. |
Method | _tunnelTypeOnly | Mask off any flags except for TunnelType.IFF_TUN and
TunnelType.IFF_TAP . |
Method | _stopPort | Verify that the stopListening method of an IListeningPort
removes that port from the reactor's "readers" set and also that
the Deferred
returned by that method fires with None . |
Method | _stopsReadingTest | Test that TuntapPort.doRead
has no side-effects under a certain exception condition. |
Method | _datagramReceivedException | Deliver some data to a TuntapPort
hooked up to an application protocol that raises an exception from its
datagramReceived method. |
Inherited from SynchronousTestCase:
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 | None
or 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 the TestResult supports skipping). |
Instance Variable | todo | None ,
a string or a tuple of (errors, reason) where
errors is either an exception class or an iterable of
exception classes, and reason is a string. See Todo or makeTodo for
more information. |
Instance Variable | suppress | None
or a list of tuples of (args, kwargs) to be passed to
warnings.filterwarnings . Use these to suppress warnings raised
in a test. Useful for testing deprecated code. See also util.suppress . |
Method | __init__ | Undocumented |
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 methodName argument is passed to the constructor, run
will treat this method as the thing with the actual test inside. |
Method | run | Run the test case, storing the results in result . |
Method | addCleanup | Add the given function to a list of functions to be called after the
test has run, but before tearDown . |
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 | _run | Run a single method, either a test method or fixture. |
Method | _runFixturesAndTest | Run setUp , a test method, test cleanups, and
tearDown . |
Method | _runCleanups | Synchronously run any cleanups which have been added. |
Method | _installObserver | Undocumented |
Method | _removeObserver | Undocumented |
Inherited from _Assertions (via SynchronousTestCase):
Method | fail | Absolutely fail the test. Do not pass go, do not collect $200. |
Method | assertFalse | Fail the test if condition evaluates to True. |
Method | assertTrue | Fail the test if condition evaluates to False. |
Method | assertRaises | Fail the test unless calling the function f with the given
args and kwargs raises exception .
The failure will report the traceback and call stack of the unexpected
exception. |
Method | assertEqual | Fail the test if first and second are not
equal. |
Method | assertIs | Fail the test if first is not second . This is
an obect-identity-equality test, not an object equality (i.e.
__eq__ ) test. |
Method | assertIsNot | Fail the test if first is second . 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 containee is not found in
container . |
Method | assertNotIn | Fail the test if containee is found in
container . |
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 substring does not exist within
astring . |
Method | assertNotSubstring | Fail if astring contains substring . |
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 instance is not an instance of the given class or
of one of the given classes. |
Method | assertNotIsInstance | Fail if instance is an instance of the given class or of
one of the given classes. |
Method | successResultOf | Return the current success result of deferred or raise
self.failureException . |
Method | failureResultOf | Return the current failure result of deferred or raise
self.failureException . |
Method | assertNoResult | Assert that deferred does not have a result at this
point. |
Method | assertRegex | Fail the test if a regexp search of text
fails. |