def test_decrypt_key():
msg_bytes = os.urandom(64 * 1024)
cmk_key_id = get_cmk()[0]
key_plain, key_ciphered = gen_data_key(cmk_key_id)
key_decrypted = decrypt_data_key(key_ciphered)
assert key_plain == key_decrypted
assert decrypt(encrypt(msg_bytes, key_plain, need_derived=False), key_decrypted, need_derived=False) == msg_bytes
def test_encrypt_and_decrypt():
msg_bytes = os.urandom(64 * 1024)
key = gen_data_key(get_cmk()[0])[0]
assert decrypt(encrypt(msg_bytes, key, need_derived=False), key, need_derived=False) == msg_bytes