Esempio n. 1
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    def test_request_object_backup(self):
        cache = Cache(100)
        cache.set_fetcher(self.Fetcher)
        cache.request_object(1, "fresh", self.object_handler,
                self.error_handler, self.timeout_handler)
        self.failUnlessEqual(self.event,None,"Early event: %r" % (self.event,))
        sleep(0.05)
        self.failUnlessEqual(self.event,None,"Early event: %r" % (self.event,))
        sleep(0.3)
        self.failUnlessEqual(self.event,("success", 1, "value1", "new"))
        self.event = None
        self.force_error = True
        cache.request_object(1, "new", self.object_handler,
                self.error_handler, self.timeout_handler)
        self.failUnlessEqual(self.event,None,"Early event: %r" % (self.event,))
        sleep(0.05)
        self.failUnlessEqual(self.event,None,"Early event: %r" % (self.event,))
        sleep(0.3)
        self.failUnlessEqual(self.event,("error", 1, "Forced error"))
        self.event = None

        self.force_error = True
        cache.request_object(1, "new", self.object_handler,
                self.error_handler, self.timeout_handler,
                backup_state = "stale")
        self.failUnlessEqual(self.event,None,"Early event: %r" % (self.event,))
        sleep(0.05)
        self.failUnlessEqual(self.event,None,"Early event: %r" % (self.event,))
        sleep(0.3)
        self.failUnlessEqual(self.event,("success", 1, "value1", "stale"))
Esempio n. 2
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 def test_request_object_failure(self):
     cache = Cache(100)
     cache.set_fetcher(self.Fetcher)
     cache.request_object(-1, "fresh", self.object_handler,
             self.error_handler, self.timeout_handler)
     self.failUnlessEqual(self.event,None,"Early event: %r" % (self.event,))
     sleep(0.05)
     cache.tick()
     self.failUnlessEqual(self.event,None,"Early event: %r" % (self.event,))
     sleep(0.3)
     cache.tick()
     self.failUnlessEqual(self.event,("error", -1, "Negative address"))
Esempio n. 3
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 def setUp(self):
     self.cache = Cache(100)
     self.event = None
Esempio n. 4
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 def test_request_object_timeout(self):
     cache = Cache(100)
     cache.set_fetcher(self.Fetcher)
     cache.request_object(1, "fresh", self.object_handler,
             self.error_handler, self.timeout_handler,
             timeout=timedelta(seconds=0.1))
     self.failUnlessEqual(self.event,None,"Early event: %r" % (self.event,))
     sleep(0.05)
     cache.tick()
     self.failUnlessEqual(self.event,None,"Early event: %r" % (self.event,))
     sleep(0.05)
     cache.tick()
     sleep(0.05)
     cache.tick()
     sleep(0.05)
     cache.tick()
     sleep(0.3)
     cache.tick()
     self.failUnlessEqual(self.event,("timeout", 1))
Esempio n. 5
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 def test_request_object_success(self):
     cache = Cache(100)
     cache.set_fetcher(self.Fetcher)
     cache.request_object(1, "fresh", self.object_handler,
             self.error_handler, self.timeout_handler)
     self.failUnlessEqual(self.event,None,"Early event: %r" % (self.event,))
     sleep(0.05)
     self.failUnlessEqual(self.event,None,"Early event: %r" % (self.event,))
     sleep(0.3)
     self.failUnlessEqual(self.event,("success", 1, "value1", "new"))
     self.event = None
     cache.request_object(1, "fresh", self.object_handler,
             self.error_handler, self.timeout_handler)
     self.failUnlessEqual(self.event,("success", 1, "value1", "fresh"))
     self.event = None
     cache.request_object(2, "fresh", self.object_handler,
             self.error_handler, self.timeout_handler)
     self.failUnlessEqual(self.event,None,"Early event: %r" % (self.event,))
     sleep(0.05)
     cache.tick()
     self.failUnlessEqual(self.event,None,"Early event: %r" % (self.event,))
     sleep(0.3)
     cache.tick()
     self.failUnlessEqual(self.event,("success", 2, "value2", "new"))
     self.event = None
     cache.request_object(2, "fresh", self.object_handler,
             self.error_handler, self.timeout_handler)
     self.failUnlessEqual(self.event,("success", 2, "value2", "fresh"))
     cache.tick()
     self.event = None
     cache.request_object(1, "fresh", self.object_handler,
             self.error_handler, self.timeout_handler)
     self.failUnlessEqual(self.event,("success", 1, "value1", "fresh"))
Esempio n. 6
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 def test_item_expiration(self):
     cache = Cache(100)
     item = CacheItem("test_addr","test_value", sec(0.1), sec(0.2), sec(0.3))
     cache.add_item(item)
     gitem = cache.get_item("test_addr","fresh")
     self.failUnlessEqual(gitem,item)
     sleep(0.01)
     gitem = cache.get_item("test_addr","fresh")
     self.failUnlessEqual(gitem,item)
     sleep(0.1)
     gitem = cache.get_item("test_addr","fresh")
     self.failUnlessEqual(gitem,None)
     cache.tick()
     gitem = cache.get_item("test_addr","old")
     self.failUnlessEqual(gitem,item)
     sleep(0.3)
     cache.tick()
     gitem = cache.get_item("test_addr","stale")
     self.failUnlessEqual(gitem,None)
     self.failUnlessEqual(cache.num_items(),0,"number of items: "+`cache.num_items()`)
Esempio n. 7
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 def test_max_items(self):
     cache = Cache(10)
     self.failUnlessEqual(cache.num_items(),0,"number of items: "+`cache.num_items()`)
     for i in range(10):
         item = CacheItem(i,i, sec(1), sec(2), sec(3))
         cache.add_item(item)
     self.failUnlessEqual(cache.num_items(),10,"number of items: "+`cache.num_items()`)
     for i in range(10,30):
         item = CacheItem(i,i, sec(1), sec(2), sec(3))
         cache.add_item(item)
     self.failUnless(cache.num_items() > 7,"number of items: "+`cache.num_items()`)
     self.failUnless(cache.num_items() <= 10,"number of items: "+`cache.num_items()`)
     self.failUnlessEqual(cache.num_items(),len(cache._items),
         "number of items: %r, in dict: %r" % (cache.num_items(), cache._items))
Esempio n. 8
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 def test_add_get_item(self):
     cache = Cache(100)
     item1 = CacheItem("test_addr1","test_value1", sec(1), sec(2), sec(3))
     cache.add_item(item1)
     item2 = CacheItem("test_addr2","test_value2", sec(1), sec(2), sec(3))
     cache.add_item(item2)
     item3 = CacheItem("test_addr3","test_value3", sec(1), sec(2), sec(3))
     cache.add_item(item3)
     gitem2 = cache.get_item("test_addr2","fresh")
     self.failUnless(gitem2 is item2, "gitem2=%r item2=%r" % (gitem2, item2))
     gitem1 = cache.get_item("test_addr1","old")
     self.failUnless(gitem1 is item1, "gitem2=%r item2=%r" % (gitem2, item2))
     gitem3 = cache.get_item("test_addr3","stale")
     self.failUnless(gitem3 is item3, "gitem2=%r item2=%r" % (gitem2, item2))
     gitem1 = cache.get_item("test_addr1","new")
     self.failUnless(gitem1 is None, "gitem1=%r" % (gitem1,))