def test_get_expired():
d = DHTLocalStorage()
d.store(DHTID.generate("key"), b"val", get_dht_time() + 0.1)
time.sleep(0.5)
assert d.get(
DHTID.generate("key")) is None, "Expired value must be deleted"
print("Test get expired passed")
def test_maxsize_cache():
d = DHTLocalStorage(maxsize=1)
d.store(DHTID.generate("key1"), b"val1", get_dht_time() + 1)
d.store(DHTID.generate("key2"), b"val2", get_dht_time() + 200)
assert d.get(DHTID.generate(
"key2"))[0] == b"val2", "Value with bigger exp. time must be kept"
assert d.get(DHTID.generate(
"key1")) is None, "Value with less exp time, must be deleted"
def test_change_expiration_time():
d = DHTLocalStorage()
d.store(DHTID.generate("key"), b"val1", get_dht_time() + 1)
assert d.get(DHTID.generate("key"))[0] == b"val1", "Wrong value"
d.store(DHTID.generate("key"), b"val2", get_dht_time() + 200)
time.sleep(1)
assert d.get(DHTID.generate(
"key"))[0] == b"val2", "Value must be changed, but still kept in table"
print("Test change expiration time passed")
def test_localstorage_freeze():
d = DHTLocalStorage(maxsize=2)
with d.freeze():
d.store(DHTID.generate("key1"), b"val1", get_dht_time() + 0.01)
assert DHTID.generate("key1") in d
time.sleep(0.03)
assert DHTID.generate("key1") in d
assert DHTID.generate("key1") not in d
with d.freeze():
d.store(DHTID.generate("key1"), b"val1", get_dht_time() + 1)
d.store(DHTID.generate("key2"), b"val2", get_dht_time() + 2)
d.store(DHTID.generate("key3"), b"val3",
get_dht_time() + 3) # key3 will push key1 out due to maxsize
assert DHTID.generate("key1") in d
assert DHTID.generate("key1") not in d
def test_localstorage_nested():
time = get_dht_time()
d1 = DHTLocalStorage()
d2 = DictionaryDHTValue()
d2.store('subkey1', b'value1', time + 2)
d2.store('subkey2', b'value2', time + 3)
d2.store('subkey3', b'value3', time + 1)
assert d2.latest_expiration_time == time + 3
for subkey, (subvalue, subexpiration) in d2.items():
assert d1.store_subkey(DHTID.generate('foo'), subkey, subvalue,
subexpiration)
assert d1.store(DHTID.generate('bar'), b'456', time + 2)
assert d1.get(DHTID.generate('foo'))[0].data == d2.data
assert d1.get(DHTID.generate('foo'))[1] == d2.latest_expiration_time
assert d1.get(DHTID.generate('foo'))[0].get('subkey1') == (b'value1',
time + 2)
assert len(d1.get(DHTID.generate('foo'))[0]) == 3
assert d1.store_subkey(DHTID.generate('foo'), 'subkey4', b'value4',
time + 4)
assert len(d1.get(DHTID.generate('foo'))[0]) == 4
assert d1.store_subkey(DHTID.generate('bar'), 'subkeyA', b'valueA',
time + 1) is False # prev has better expiration
assert d1.store_subkey(DHTID.generate('bar'), 'subkeyA', b'valueA',
time + 3) # new value has better expiration
assert d1.store_subkey(DHTID.generate('bar'), 'subkeyB', b'valueB',
time + 4) # new value has better expiration
assert d1.store_subkey(DHTID.generate('bar'), 'subkeyA', b'valueA+',
time + 5) # overwrite subkeyA under key bar
assert all(subkey in d1.get(DHTID.generate('bar'))[0]
for subkey in ('subkeyA', 'subkeyB'))
assert len(d1.get(DHTID.generate('bar'))[0]) == 2 and d1.get(
DHTID.generate('bar'))[1] == time + 5
assert d1.store(DHTID.generate('foo'), b'nothing', time +
3.5) is False # previous value has better expiration
assert d1.get(DHTID.generate('foo'))[0].get('subkey2') == (b'value2',
time + 3)
assert d1.store(DHTID.generate('foo'), b'nothing',
time + 5) is True # new value has better expiraiton
assert d1.get(DHTID.generate('foo')) == (b'nothing', time + 5
) # value should be replaced
def test_store():
d = DHTLocalStorage()
d.store(DHTID.generate("key"), b"val", get_dht_time() + 0.5)
assert d.get(DHTID.generate("key"))[0] == b"val", "Wrong value"
print("Test store passed")
def test_localstorage_top():
d = DHTLocalStorage(maxsize=3)
d.store(DHTID.generate("key1"), b"val1", get_dht_time() + 1)
d.store(DHTID.generate("key2"), b"val2", get_dht_time() + 2)
d.store(DHTID.generate("key3"), b"val3", get_dht_time() + 4)
assert d.top()[0] == DHTID.generate("key1") and d.top()[1].value == b"val1"
d.store(DHTID.generate("key1"), b"val1_new", get_dht_time() + 3)
assert d.top()[0] == DHTID.generate("key2") and d.top()[1].value == b"val2"
del d[DHTID.generate('key2')]
assert d.top()[0] == DHTID.generate(
"key1") and d.top()[1].value == b"val1_new"
d.store(DHTID.generate("key2"), b"val2_new", get_dht_time() + 5)
d.store(DHTID.generate("key4"), b"val4",
get_dht_time() + 6) # key4 will push out key1 due to maxsize
assert d.top()[0] == DHTID.generate("key3") and d.top()[1].value == b"val3"
def test_get_empty():
d = DHTLocalStorage()
assert d.get(DHTID.generate(
source="key")) is None, "DHTLocalStorage returned non-existent value"
print("Test get expired passed")