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# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
#
import numpy as np
import pytest
from cc_net.flat_hash_set import HASH_TYPE, FlatHashSet, NaiveHashSet
def as_dict(flat_hash_set) -> dict:
return {k: v for (k, v) in flat_hash_set.items()}
need_getpy = pytest.mark.skipif(
FlatHashSet == NaiveHashSet, reason="getpy isn't installed"
)
def same_behavior(test_case):
def run_case():
naive = as_dict(test_case(FlatHashSet))
flat = as_dict(test_case(NaiveHashSet))
assert naive == flat
return need_getpy(run_case)
@same_behavior
def test_setitem(hash_set_cls):
h = hash_set_cls()
h[np.arange(10, dtype=h.dtype)] = np.zeros(10, dtype=np.uint8)
h[np.arange(5, dtype=h.dtype)] = np.ones(5, dtype=np.uint8)
return h
@same_behavior
def test_add_dup(hash_set_cls):
h = hash_set_cls()
h.add(np.arange(10, dtype=h.dtype))
h.add(np.arange(5, dtype=h.dtype))
expected = {i: i < 5 for i in range(10)}
assert expected == as_dict(h), f"add_dup with {hash_set_cls.__name__}"
return h
@need_getpy
def test_gp_dict():
import getpy as gp # type: ignore
h = gp.Dict(HASH_TYPE, np.uint8)
h[np.arange(10, dtype=HASH_TYPE)] = np.zeros(10, dtype=np.uint8)
h[np.arange(5, dtype=HASH_TYPE)] = np.ones(5, dtype=np.uint8)
expected = {i: i < 5 for i in range(10)}
assert expected == as_dict(h)
def check_reload(h, dump, load, tmp_path):
dump_path = tmp_path / dump.__name__
dump(h, dump_path)
h2 = type(h)()
load(h2, dump_path)
assert as_dict(h) == as_dict(h2)
@pytest.mark.parametrize("hash_set_cls", [FlatHashSet, NaiveHashSet])
def test_loading(tmp_path, hash_set_cls):
h = hash_set_cls()
x = np.random.randint(0, 2 ** 32, (100,), dtype=h.dtype)
h.add(x)
check_reload(h, hash_set_cls.dump, hash_set_cls.load, tmp_path)
check_reload(h, hash_set_cls.dump_np, hash_set_cls.load_np, tmp_path)
if hasattr(hash_set_cls, "dump_gp"):
check_reload(h, hash_set_cls.dump_gp, hash_set_cls.load_gp, tmp_path)
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