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import pytest
import redis
from redis.commands.bf import BFInfo
from fakeredis import _msgs as msgs
bloom_tests = pytest.importorskip("probables")
def intlist(obj):
return [int(v) for v in obj]
def test_create_bf(r: redis.Redis):
assert r.bf().create("bloom", 0.01, 1000)
assert r.bf().create("bloom_e", 0.01, 1000, expansion=1)
assert r.bf().create("bloom_ns", 0.01, 1000, noScale=True)
@pytest.mark.unsupported_server_types("dragonfly")
def test_create_cf(r: redis.Redis):
assert r.cf().create("cuckoo", 1000)
assert r.cf().create("cuckoo_e", 1000, expansion=1)
assert r.cf().create("cuckoo_bs", 1000, bucket_size=4)
assert r.cf().create("cuckoo_mi", 1000, max_iterations=10)
assert r.cms().initbydim("cmsDim", 100, 5)
assert r.cms().initbyprob("cmsProb", 0.01, 0.01)
assert r.topk().reserve("topk", 5, 100, 5, 0.9)
def test_bf_reserve(r: redis.Redis):
assert r.bf().reserve("bloom", 0.01, 1000)
assert r.bf().reserve("bloom_ns", 0.01, 1000, noScale=True)
with pytest.raises(redis.exceptions.ResponseError, match=msgs.NONSCALING_FILTERS_CANNOT_EXPAND_MSG):
assert r.bf().reserve("bloom_e", 0.01, 1000, expansion=1, noScale=True)
with pytest.raises(redis.exceptions.ResponseError, match=msgs.ITEM_EXISTS_MSG):
assert r.bf().reserve("bloom", 0.01, 1000)
def test_bf_add(r: redis.Redis):
assert r.bf().add("key", "value") == 1
assert r.bf().add("key", "value") == 0
r.set("key1", "value")
with pytest.raises(redis.exceptions.ResponseError):
r.bf().add("key1", "v")
assert r.bf().create("bloom", 0.01, 1000)
assert 1 == r.bf().add("bloom", "foo")
assert 0 == r.bf().add("bloom", "foo")
assert [0] == intlist(r.bf().madd("bloom", "foo"))
assert [0, 1] == r.bf().madd("bloom", "foo", "bar")
assert [0, 0, 1] == r.bf().madd("bloom", "foo", "bar", "baz")
assert 1 == r.bf().exists("bloom", "foo")
assert 0 == r.bf().exists("bloom", "noexist")
assert [1, 0] == intlist(r.bf().mexists("bloom", "foo", "noexist"))
def test_bf_madd(r: redis.Redis):
assert r.bf().madd("key", "v1", "v2", "v2") == [1, 1, 0]
assert r.bf().madd("key", "v1", "v2", "v4") == [0, 0, 1]
r.set("key1", "value")
with pytest.raises(redis.exceptions.ResponseError):
r.bf().add("key1", "v")
@pytest.mark.unsupported_server_types("dragonfly")
def test_bf_card(r: redis.Redis):
assert r.bf().madd("key", "v1", "v2", "v3") == [1, 1, 1]
assert r.bf().card("key") == 3
assert r.bf().card("key-new") == 0
r.set("key1", "value")
with pytest.raises(redis.exceptions.ResponseError):
r.bf().card("key1")
# return 0 if the key does not exist
assert r.bf().card("not_exist") == 0
# Store a filter
assert r.bf().add("bf1", "item_foo") == 1
assert r.bf().card("bf1") == 1
# Error when key is of a type other than Bloom filter.
with pytest.raises(redis.ResponseError):
r.set("setKey", "value")
r.bf().card("setKey")
def test_bf_exists(r: redis.Redis):
assert r.bf().madd("key", "v1", "v2", "v3") == [1, 1, 1]
assert r.bf().exists("key", "v1") == 1
assert r.bf().exists("key", "v5") == 0
assert r.bf().exists("key-new", "v5") == 0
r.set("key1", "value")
with pytest.raises(redis.exceptions.ResponseError):
r.bf().add("key1", "v")
def test_bf_mexists(r: redis.Redis):
assert r.bf().madd("key", "v1", "v2", "v3") == [1, 1, 1]
assert r.bf().mexists("key", "v1") == [
1,
]
assert r.bf().mexists("key", "v1", "v5") == [1, 0]
assert r.bf().mexists("key-new", "v5") == [
0,
]
r.set("key1", "value")
with pytest.raises(redis.exceptions.ResponseError):
r.bf().add("key1", "v")
@pytest.mark.unsupported_server_types("dragonfly")
def test_bf_insert(r: redis.Redis):
assert r.bf().create("key", 0.01, 1000)
assert r.bf().insert("key", ["foo"]) == [1]
assert r.bf().insert("key", ["foo", "bar"]) == [0, 1]
assert r.bf().insert("captest", ["foo"], capacity=10) == [1]
assert r.bf().insert("errtest", ["foo"], error=0.01) == [1]
assert r.bf().exists("key", "foo") == 1
assert r.bf().exists("key", "noexist") == 0
assert r.bf().mexists("key", "foo", "noexist") == [1, 0]
with pytest.raises(redis.exceptions.ResponseError, match=msgs.NOT_FOUND_MSG):
r.bf().insert("nocreate", [1, 2, 3], noCreate=True)
# with pytest.raises(redis.exceptions.ResponseError, match=msgs.NONSCALING_FILTERS_CANNOT_EXPAND_MSG):
# r.bf().insert("nocreate", [1, 2, 3], expansion=2, noScale=True)
assert r.bf().create("bloom", 0.01, 1000)
assert [1] == intlist(r.bf().insert("bloom", ["foo"]))
assert [0, 1] == intlist(r.bf().insert("bloom", ["foo", "bar"]))
assert 1 == r.bf().exists("bloom", "foo")
assert 0 == r.bf().exists("bloom", "noexist")
assert [1, 0] == intlist(r.bf().mexists("bloom", "foo", "noexist"))
info = r.bf().info("bloom")
assert 2 == info.get("insertedNum")
assert 1000 == info.get("capacity")
assert 1 == info.get("filterNum")
@pytest.mark.unsupported_server_types("dragonfly")
def test_bf_scandump_and_loadchunk(r: redis.Redis):
r.bf().create("myBloom", "0.0001", "1000")
# Test is probabilistic and might fail. It is OK to change variables if
# certain to not break anything
res = 0
for x in range(1000):
r.bf().add("myBloom", x)
assert r.bf().exists("myBloom", x)
rv = r.bf().exists("myBloom", f"nonexist_{x}")
res += rv == x
assert res < 5
cmds = list()
first = 0
while first is not None:
cur = r.bf().scandump("myBloom", first)
if cur[0] == 0:
first = None
else:
first = cur[0]
cmds.append(cur)
# Remove the filter
r.bf().client.delete("myBloom")
# Now, load all the commands:
for cmd in cmds:
r.bf().loadchunk("myBloom1", *cmd)
for x in range(1000):
assert r.bf().exists("myBloom1", x), f"{x} not in filter"
@pytest.mark.unsupported_server_types("dragonfly")
def test_bf_info(r: redis.Redis):
# Store a filter
r.bf().create("nonscaling", "0.0001", "1000", noScale=True)
info: BFInfo = r.bf().info("nonscaling")
assert info.expansionRate is None
expansion = 4
r.bf().create("expanding", "0.0001", "1000", expansion=expansion)
info = r.bf().info("expanding")
assert info.expansionRate == 4
assert info.capacity == 1000
assert info.insertedNum == 0
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