class ResolverTests(unittest.TestCase): (source)
Tests for client.Resolver
.
Method | test_client |
client provides IResolver through a series of free functions. |
Method | test_client |
client.Resolver provides IResolver . |
Method | test_closes |
As part of its constructor, StubResolver opens /etc/resolv.conf; then, explicitly closes it and does not count on the GC to do so for it. |
Method | test_connected |
client.Resolver._connectedProtocol returns a new DNSDatagramProtocol connected to a new address with a cryptographically secure random port number. |
Method | test_datagram |
client.Resolver.queryUDP should issue queries to its dns.DNSDatagramProtocol with server addresses taken from its own servers and dynServers lists, proceeding through them in order as DNSQueryTimeoutError ... |
Method | test_different |
client.Resolver._connectedProtocol is called once each time a UDP request needs to be issued and the resulting protocol instance is used for that request. |
Method | test_different |
When a query issued by client.Resolver.query times out, the retry uses a new protocol instance. |
Method | test_disallowed |
If a port number is initially selected which cannot be bound, the CannotListenError is handled and another port number is attempted. |
Method | test_disallowed |
If port numbers that cannot be bound are repeatedly selected, resolver._connectedProtocol will give up eventually. |
Method | test_domain |
client.Resolver.parseConfig treats a domain line without an argument as indicating a domain of b"". |
Method | test_ipv6 |
If the resolver is ipv6, open a ipv6 port. |
Method | test_missing |
A missing nameserver configuration file results in no server information being loaded from it (ie, not an exception) and a default server being provided. |
Method | test_multiple |
If the result of a request is an error response, the Deferreds for all concurrently issued requests associated with that result fire with the Failure . |
Method | test_multiple |
client.Resolver.query issues a request for each different concurrent query. |
Method | test_multiple |
After a response is received to a query issued with client.Resolver.query , another query with the same parameters results in a new network request. |
Method | test_multiple |
All pending resolver.queryTCP deferreds will errback with the same Failure if the connection attempt fails. |
Method | test_no |
client.Resolver raises ValueError if constructed with neither servers nor a nameserver configuration file. |
Method | test_pending |
When the TCP connection attempt fails, the client.Resolver.pending list is emptied in place. It is not replaced with a new empty list. |
Method | test_protocol |
After the Deferred returned by DNSDatagramProtocol.query is called back, the DNSDatagramProtocol is disconnected from its transport. |
Method | test_protocol |
If the Deferred returned by DNSDatagramProtocol.query fires with a failure, the DNSDatagramProtocol is still disconnected from its transport. |
Method | test_protocol |
The DNSDatagramProtocol created when an interim timeout occurs is also disconnected from its transport after the Deferred returned by its query method completes. |
Method | test_reentrant |
An errback on the deferred returned by client.Resolver.queryTCP may trigger another TCP query. |
Method | test_resolver |
If a reactor instance is supplied to client.Resolver client.Resolver._connectedProtocol should pass that reactor to twisted.names.dns.DNSDatagramProtocol . |
Method | test_run |
If the process is out of files, Resolver._connectedProtocol will give up. |
Method | test_search |
client.Resolver.parseConfig treats a search line without an argument as indicating an empty search suffix. |
Method | test_single |
client.Resolver.query only issues one request at a time per query. Subsequent requests made before responses to prior ones are received are queued and given the same response as is given to the first one. |
Method | test_single |
The deferred returned by client.Resolver.queryTCP will errback when the TCP connection attempt fails. The reason for the connection failure is passed as the argument to errback. |
Method | test_tcp |
When a TCP DNS protocol associated with a Resolver disconnects, it is removed from the Resolver's connection list. |
Inherited from TestCase
:
Method | __call__ |
Run the test. Should always do exactly the same thing as run(). |
Method | __init__ |
Construct an asynchronous test case for methodName. |
Method | add |
Extend the base cleanup feature with support for cleanup functions which return Deferreds. |
Method | assert |
Fail if deferred does not errback with one of expectedFailures. Returns the original Deferred with callbacks added. You will need to return this Deferred from your test case. |
Method | defer |
Run any scheduled cleanups and report errors (if any) to the result. object. |
Method | defer |
Undocumented |
Method | defer |
Undocumented |
Method | defer |
Undocumented |
Method | get |
Undocumented |
Method | get |
Returns the timeout value set on this test. Checks on the instance first, then the class, then the module, then packages. As soon as it finds something with a timeout attribute, returns that. Returns util.DEFAULT_TIMEOUT_DURATION ... |
Instance Variable | timeout |
A real number of seconds. If set, the test will raise an error if it takes longer than timeout seconds. If not set, util.DEFAULT_TIMEOUT_DURATION is used. |
Method | _cb |
Undocumented |
Method | _class |
Undocumented |
Method | _clean |
Undocumented |
Method | _deprecate |
Deprecate iterate, crash and stop on reactor. That is, each method is wrapped in a function that issues a deprecation warning, then calls the original. |
Method | _eb |
Undocumented |
Method | _eb |
Undocumented |
Method | _eb |
Undocumented |
Method | _make |
Create a method which wraps the reactor method name. The new method issues a deprecation warning and calls the original. |
Method | _run |
Run a single method, either a test method or fixture. |
Method | _run |
Really run setUp, the test method, and tearDown. Any of these may return defer.Deferred s. After they complete, do some reactor cleanup. |
Method | _undeprecate |
Restore the deprecated reactor methods. Undoes what _deprecateReactor did. |
Method | _wait |
Take a Deferred that only ever callbacks. Block until it happens. |
Instance Variable | _passed |
Undocumented |
Instance Variable | _reactor |
Undocumented |
Instance Variable | _timed |
Undocumented |
Inherited from SynchronousTestCase
(via TestCase
):
Method | __eq__ |
Override the comparison defined by the base TestCase which considers instances of the same class with the same _testMethodName to be equal. Since trial puts TestCase instances into a set, that definition of comparison makes it impossible to run the same test method twice... |
Method | __hash__ |
Undocumented |
Method | call |
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 | flush |
Remove stored errors received from the log. |
Method | flush |
Remove stored warnings from the list of captured warnings and return them. |
Method | get |
Retrieve a module attribute which should have been deprecated, and assert that we saw the appropriate deprecation warning. |
Method | get |
Return the skip reason set on this test, if any is set. Checks on the instance first, then the class, then the module, then packages. As soon as it finds something with a skip attribute, returns that in a tuple (... |
Method | get |
Return a Todo object if the test is marked todo. Checks on the instance first, then the class, then the module, then packages. As soon as it finds something with a todo attribute, returns that. Returns ... |
Method | mktemp |
Create a new path name which can be used for a new file or directory. |
Method | patch |
Monkey patch an object for the duration of the test. |
Method | run |
Run the test case, storing the results in result. |
Method | run |
If no methodName argument is passed to the constructor, run will treat this method as the thing with the actual test inside. |
Method | short |
Undocumented |
Instance Variable | failure |
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 | 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 . |
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. |
Method | _get |
Return the reason to use for skipping a test method. |
Method | _get |
Returns any warning suppressions set for this test. Checks on the instance first, then the class, then the module, then packages. As soon as it finds something with a suppress attribute, returns that. ... |
Method | _install |
Undocumented |
Method | _remove |
Undocumented |
Method | _run |
Synchronously run any cleanups which have been added. |
Instance Variable | _cleanups |
Undocumented |
Instance Variable | _observer |
Undocumented |
Instance Variable | _parents |
Undocumented |
Instance Variable | _test |
Undocumented |
Instance Variable | _warnings |
Undocumented |
Inherited from _Assertions
(via TestCase
, SynchronousTestCase
):
Method | assert |
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 | assert |
Fail if first - second > tolerance |
Method | assert |
Fail the test if first and second are not equal. |
Method | assert |
Fail the test if condition evaluates to True. |
Method | assert |
Fail the test if containee is not found in container. |
Method | assert |
Fail the test if first is not second. This is an obect-identity-equality test, not an object equality (i.e. __eq__) test. |
Method | assert |
Fail if instance is not an instance of the given class or of one of the given classes. |
Method | assert |
Fail the test if first is second. This is an obect-identity-equality test, not an object equality (i.e. __eq__) test. |
Method | assert |
Assert that deferred does not have a result at this point. |
Method | assert |
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 | assert |
Fail the test if first == second. |
Method | assert |
Fail the test if containee is found in container. |
Method | assert |
Fail if instance is an instance of the given class or of one of the given classes. |
Method | assert |
Fail if astring contains substring. |
Method | assert |
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 | assert |
Fail if substring does not exist within astring. |
Method | assert |
Fail the test if condition evaluates to False. |
Method | assert |
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 | fail |
Absolutely fail the test. Do not pass go, do not collect $200. |
Method | failure |
Return the current failure result of deferred or raise self.failureException. |
Method | success |
Return the current success result of deferred or raise self.failureException. |
As part of its constructor, StubResolver opens /etc/resolv.conf; then, explicitly closes it and does not count on the GC to do so for it.
client.Resolver._connectedProtocol
returns a new DNSDatagramProtocol
connected to a new address with a cryptographically secure random port number.
client.Resolver.queryUDP
should issue queries to its dns.DNSDatagramProtocol
with server addresses taken from its own servers and dynServers lists, proceeding through them in order as DNSQueryTimeoutError
s occur.
client.Resolver._connectedProtocol
is called once each time a UDP request needs to be issued and the resulting protocol instance is used for that request.
If a port number is initially selected which cannot be bound, the CannotListenError
is handled and another port number is attempted.
If port numbers that cannot be bound are repeatedly selected, resolver._connectedProtocol
will give up eventually.
A missing nameserver configuration file results in no server information being loaded from it (ie, not an exception) and a default server being provided.
If the result of a request is an error response, the Deferreds for all concurrently issued requests associated with that result fire with the Failure
.
After a response is received to a query issued with client.Resolver.query
, another query with the same parameters results in a new network request.
All pending resolver.queryTCP
deferreds will errback with the same Failure if the connection attempt fails.
client.Resolver
raises ValueError
if constructed with neither servers nor a nameserver configuration file.
When the TCP connection attempt fails, the client.Resolver.pending
list is emptied in place. It is not replaced with a new empty list.
After the Deferred
returned by DNSDatagramProtocol.query
is called back, the DNSDatagramProtocol
is disconnected from its transport.
If the Deferred
returned by DNSDatagramProtocol.query
fires with a failure, the DNSDatagramProtocol
is still disconnected from its transport.
The DNSDatagramProtocol
created when an interim timeout occurs is also disconnected from its transport after the Deferred returned by its query method completes.
If a reactor instance is supplied to client.Resolver
client.Resolver._connectedProtocol
should pass that reactor to twisted.names.dns.DNSDatagramProtocol
.
client.Resolver.parseConfig
treats a search line without an argument as indicating an empty search suffix.
client.Resolver.query
only issues one request at a time per query. Subsequent requests made before responses to prior ones are received are queued and given the same response as is given to the first one.
The deferred returned by client.Resolver.queryTCP
will errback when the TCP connection attempt fails. The reason for the connection failure is passed as the argument to errback.