def test_get_modified():
test_obj = PersistentLRUCache(directory=directory)
modified_time = time.time()
test_obj.refresh("some_key", "43", modified_time)
assert test_obj.get_modified("some_key") == modified_time
test_obj.write("some_key", "42")
assert test_obj.get_modified("some_key") < time.time()
def test_get_keys():
test_obj = PersistentLRUCache(directory=directory)
test_obj.refresh("some_key", "43", time.time())
test_obj.write("some_other_key", "42")
assert "some_key" in test_obj.get_keys()
assert "some_other_key" in test_obj.get_keys()
assert not "some_keyXYZ" in test_obj.get_keys()
def test_resize_zerosize():
test_obj = PersistentLRUCache(directory=directory, expiration_time=0.00001, maxsize_in_MB=0)
test_obj.set_resize_intervall(0)
test_obj.refresh("some_key", "43", time.time())
time.sleep(0.001)
assert "some_key" in test_obj.get_keys()
test_obj.refresh("some_other_key", "42", time.time())
assert "some_other_key" in test_obj.get_keys()
assert not "some_key" in test_obj.get_keys() #deleted due to internal resize
assert test_obj.get_value("some_other_key") == "42"
def test_resize():
test_obj = PersistentLRUCache(directory=directory, expiration_time=0.00001,maxsize_in_MB=30)
test_obj.set_resize_intervall(0)
for i in range(10,62):
test_obj.refresh(str(i), "a"*2000000, time.time())
time.sleep(0.001)
assert test_obj.get_size_of_cached_data() < 30000003
for j in range(10,i-14+1):
assert not str(j) in test_obj.get_keys()
for j in range(10,i+1)[-14:]:
assert test_obj.get_value(str(j)) == "a"*2000000
def test_get_size_of_cached_data():
test_obj = PersistentLRUCache(directory=directory)
modified_time = time.time()
assert test_obj.get_size_of_cached_data() == 0
test_obj.refresh("some_key", "abcd", modified_time)
assert test_obj.get_size_of_cached_data() == 4
test_obj.write("some_other_key", "42")
assert test_obj.get_size_of_cached_data() == 6
test_obj.write("some_other_key", 52)
assert test_obj.get_size_of_cached_data() == 6
test_obj.refresh("some_key", "abcd", modified_time)
assert test_obj.get_size_of_cached_data() == 6
def test_get_size_of_dirty_data():
test_obj = PersistentLRUCache(directory=directory)
assert test_obj.get_size_of_dirty_data() == 0
test_obj.refresh("some_key", "abcd", time.time())
assert test_obj.get_size_of_dirty_data() == 0
test_obj.write("some_other_key", "42")
assert test_obj.get_size_of_dirty_data() == 2
test_obj.write("some_other_key", 52)
assert test_obj.get_size_of_dirty_data() == 2
test_obj.write("some_key", "abcd")
assert test_obj.get_size_of_dirty_data() == 6
test_obj.refresh("some_other_key", "42", time.time())
assert test_obj.get_size_of_dirty_data() == 4
def test_refresh():
test_obj = PersistentLRUCache(directory=directory)
test_obj.refresh("some_key", "43", time.time())
test_obj.refresh("some_key","42", time.time())
assert test_obj.get_value("some_key") == "42"
test_obj.refresh("some_key","43", time.time()-1000)
assert test_obj.get_value("some_key") == "42", "Refresh should not have worked since the modified time of the 'disk' entry is older than the cache entry."
assert not test_obj.is_dirty("some_key")
def test_get_value():
test_obj = PersistentLRUCache(directory=directory)
test_obj.refresh("some_key", "43", time.time())
assert test_obj.get_value("some_key") == "43"
test_obj.write("some_key", "42")
assert test_obj.get_value("some_key") == "42"
def test_is_dirty():
test_obj = PersistentLRUCache(directory=directory)
test_obj.refresh("some_key", "43", time.time())
assert not test_obj.is_dirty("some_key")
test_obj.write("some_key", "42")
assert test_obj.is_dirty("some_key")
