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Diffstat (limited to 'lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/names/test/test_cache.py')
-rwxr-xr-xlib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/names/test/test_cache.py129
1 files changed, 0 insertions, 129 deletions
diff --git a/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/names/test/test_cache.py b/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/names/test/test_cache.py
deleted file mode 100755
index 7afafedf..00000000
--- a/lib/python2.7/site-packages/Twisted-12.2.0-py2.7-linux-x86_64.egg/twisted/names/test/test_cache.py
+++ /dev/null
@@ -1,129 +0,0 @@
-# Copyright (c) Twisted Matrix Laboratories.
-# See LICENSE for details.
-
-import time
-
-from twisted.trial import unittest
-
-from twisted.names import dns, cache
-from twisted.internet import task
-
-class Caching(unittest.TestCase):
- """
- Tests for L{cache.CacheResolver}.
- """
-
- def test_lookup(self):
- c = cache.CacheResolver({
- dns.Query(name='example.com', type=dns.MX, cls=dns.IN):
- (time.time(), ([], [], []))})
- return c.lookupMailExchange('example.com').addCallback(
- self.assertEqual, ([], [], []))
-
-
- def test_constructorExpires(self):
- """
- Cache entries passed into L{cache.CacheResolver.__init__} get
- cancelled just like entries added with cacheResult
- """
-
- r = ([dns.RRHeader("example.com", dns.A, dns.IN, 60,
- dns.Record_A("127.0.0.1", 60))],
- [dns.RRHeader("example.com", dns.A, dns.IN, 50,
- dns.Record_A("127.0.0.1", 50))],
- [dns.RRHeader("example.com", dns.A, dns.IN, 40,
- dns.Record_A("127.0.0.1", 40))])
-
- clock = task.Clock()
- query = dns.Query(name="example.com", type=dns.A, cls=dns.IN)
-
- c = cache.CacheResolver({ query : (clock.seconds(), r)}, reactor=clock)
-
- # 40 seconds is enough to expire the entry because expiration is based
- # on the minimum TTL.
- clock.advance(40)
-
- self.assertNotIn(query, c.cache)
-
- return self.assertFailure(
- c.lookupAddress("example.com"), dns.DomainError)
-
-
- def test_normalLookup(self):
- """
- When a cache lookup finds a cached entry from 1 second ago, it is
- returned with a TTL of original TTL minus the elapsed 1 second.
- """
- r = ([dns.RRHeader("example.com", dns.A, dns.IN, 60,
- dns.Record_A("127.0.0.1", 60))],
- [dns.RRHeader("example.com", dns.A, dns.IN, 50,
- dns.Record_A("127.0.0.1", 50))],
- [dns.RRHeader("example.com", dns.A, dns.IN, 40,
- dns.Record_A("127.0.0.1", 40))])
-
- clock = task.Clock()
-
- c = cache.CacheResolver(reactor=clock)
- c.cacheResult(dns.Query(name="example.com", type=dns.A, cls=dns.IN), r)
-
- clock.advance(1)
-
- def cbLookup(result):
- self.assertEquals(result[0][0].ttl, 59)
- self.assertEquals(result[1][0].ttl, 49)
- self.assertEquals(result[2][0].ttl, 39)
- self.assertEquals(result[0][0].name.name, "example.com")
-
- return c.lookupAddress("example.com").addCallback(cbLookup)
-
-
- def test_cachedResultExpires(self):
- """
- Once the TTL has been exceeded, the result is removed from the cache.
- """
- r = ([dns.RRHeader("example.com", dns.A, dns.IN, 60,
- dns.Record_A("127.0.0.1", 60))],
- [dns.RRHeader("example.com", dns.A, dns.IN, 50,
- dns.Record_A("127.0.0.1", 50))],
- [dns.RRHeader("example.com", dns.A, dns.IN, 40,
- dns.Record_A("127.0.0.1", 40))])
-
- clock = task.Clock()
-
- c = cache.CacheResolver(reactor=clock)
- query = dns.Query(name="example.com", type=dns.A, cls=dns.IN)
- c.cacheResult(query, r)
-
- clock.advance(40)
-
- self.assertNotIn(query, c.cache)
-
- return self.assertFailure(
- c.lookupAddress("example.com"), dns.DomainError)
-
-
- def test_expiredTTLLookup(self):
- """
- When the cache is queried exactly as the cached entry should expire but
- before it has actually been cleared, the cache does not return the
- expired entry.
- """
- r = ([dns.RRHeader("example.com", dns.A, dns.IN, 60,
- dns.Record_A("127.0.0.1", 60))],
- [dns.RRHeader("example.com", dns.A, dns.IN, 50,
- dns.Record_A("127.0.0.1", 50))],
- [dns.RRHeader("example.com", dns.A, dns.IN, 40,
- dns.Record_A("127.0.0.1", 40))])
-
- clock = task.Clock()
- # Make sure timeouts never happen, so entries won't get cleared:
- clock.callLater = lambda *args, **kwargs: None
-
- c = cache.CacheResolver({
- dns.Query(name="example.com", type=dns.A, cls=dns.IN) :
- (clock.seconds(), r)}, reactor=clock)
-
- clock.advance(60.1)
-
- return self.assertFailure(
- c.lookupAddress("example.com"), dns.DomainError)