test_table.py

# Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"). You
# may not use this file except in compliance with the License. A copy of
# the License is located at
#
# http://aws.amazon.com/apache2.0/
#
# or in the "license" file accompanying this file. This file is
# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
# ANY KIND, either express or implied. See the License for the specific
# language governing permissions and limitations under the License.
"""Functional tests for ``dynamodb_encryption_sdk.encrypted.table``."""
import boto3
import hypothesis
import pytest

from dynamodb_encryption_sdk.encrypted.table import EncryptedTable
from ..functional_test_utils import (
    check_encrypted_item, set_parametrized_actions, set_parametrized_cmp, set_parametrized_item,
    TEST_KEY, TEST_TABLE_NAME
)
from ..functional_test_utils import example_table  # noqa pylint: disable=unused-import
from ..hypothesis_strategies import ddb_items, SLOW_SETTINGS, VERY_SLOW_SETTINGS

pytestmark = [pytest.mark.functional, pytest.mark.local]


def pytest_generate_tests(metafunc):
    set_parametrized_actions(metafunc)
    set_parametrized_cmp(metafunc)
    set_parametrized_item(metafunc)


def _table_cycle_check(materials_provider, initial_actions, initial_item):
    check_attribute_actions = initial_actions.copy()
    check_attribute_actions.set_index_keys(*list(TEST_KEY.keys()))
    item = initial_item.copy()
    item.update(TEST_KEY)

    table = boto3.resource('dynamodb', region_name='us-west-2').Table(TEST_TABLE_NAME)
    e_table = EncryptedTable(
        table=table,
        materials_provider=materials_provider,
        attribute_actions=initial_actions,
    )

    _put_result = e_table.put_item(Item=item)  # noqa

    encrypted_result = table.get_item(Key=TEST_KEY)
    check_encrypted_item(item, encrypted_result['Item'], check_attribute_actions)

    decrypted_result = e_table.get_item(Key=TEST_KEY)
    assert decrypted_result['Item'] == item

    e_table.delete_item(Key=TEST_KEY)
    del item
    del check_attribute_actions


def test_ephemeral_item_cycle(example_table, some_cmps, parametrized_actions, parametrized_item):
    """Test a small number of curated CMPs against a small number of curated items."""
    _table_cycle_check(some_cmps, parametrized_actions, parametrized_item)


@pytest.mark.slow
def test_ephemeral_item_cycle_slow(example_table, all_the_cmps, parametrized_actions, parametrized_item):
    """Test ALL THE CMPS against a small number of curated items."""
    _table_cycle_check(all_the_cmps, parametrized_actions, parametrized_item)


@pytest.mark.slow
@pytest.mark.hypothesis
@SLOW_SETTINGS
@hypothesis.given(item=ddb_items)
def test_ephemeral_item_cycle_hypothesis_slow(example_table, some_cmps, hypothesis_actions, item):
    """Test a small number of curated CMPs against a large number of items."""
    _table_cycle_check(some_cmps, hypothesis_actions, item)


@pytest.mark.veryslow
@pytest.mark.hypothesis
@VERY_SLOW_SETTINGS
@hypothesis.given(item=ddb_items)
def test_ephemeral_item_cycle_hypothesis_veryslow(example_table, some_cmps, hypothesis_actions, item):
    """Test a small number of curated CMPs against ALL THE ITEMS."""
    _table_cycle_check(some_cmps, hypothesis_actions, item)


@pytest.mark.nope
@pytest.mark.hypothesis
@VERY_SLOW_SETTINGS
@hypothesis.given(item=ddb_items)
def test_ephemeral_item_cycle_hypothesis_nope(example_table, all_the_cmps, hypothesis_actions, item):
    """Test ALL THE CMPs against ALL THE ITEMS."""
    _table_cycle_check(all_the_cmps, hypothesis_actions, item)