def test_basic_settings():
# remove existing DB
shutil.rmtree(db1, True)
# create new DB
H.hashdb(["create", db1, "-p1024", "-m3", "-a 128", "-t 7", "--bloom=disabled", "--bloom_kM=4:14"])
# validate settings parameters
settings = H.parse_settings(db1)
H.int_equals(settings['settings_version'], 2)
H.int_equals(settings['byte_alignment'], 128)
H.int_equals(settings['hash_truncation'], 7)
H.int_equals(settings['hash_block_size'], 1024)
H.int_equals(settings['maximum_hash_duplicates'], 3)
H.bool_equals(settings['bloom_used'], False)
H.int_equals(settings['bloom_k_hash_functions'], 4)
H.int_equals(settings['bloom_M_hash_size'], 14)
# byte alignment boundary
H.write_temp_dfxml_hash(byte_run_len=1024)
changes = H.parse_changes(H.hashdb(["import", db1, "temp_dfxml_hash"]))
H.int_equals(changes['hashes_inserted'], 1)
def test_rebuild_bloom():
bloom_path = os.path.join(db1, "bloom_filter")
# create DB
shutil.rmtree(db1, True)
H.hashdb(["create", db1])
H.bool_equals(os.path.exists(bloom_path), True)
H.hashdb(["rebuild_bloom", db1, "--bloom", "disabled"])
H.bool_equals(os.path.exists(bloom_path), False)
H.hashdb(["rebuild_bloom", db1])
H.bool_equals(os.path.exists(bloom_path), True)
