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# Copyright 2015 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
#
# https://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.
from botocore.stub import Stubber
import boto3
from boto3.dynamodb.conditions import Attr, Key
from tests import unittest
class TestStubberSupportsFilterExpressions(unittest.TestCase):
maxDiff = None
def setUp(self):
self.resource = boto3.resource('dynamodb', 'us-east-1')
def test_table_query_can_be_stubbed_with_expressions(self):
table = self.resource.Table('mytable')
key_expr = Key('mykey').eq('testkey')
filter_expr = Attr('myattr').eq('foo') & (
Attr('myattr2').lte('buzz') | Attr('myattr2').gte('fizz')
)
stubber = Stubber(table.meta.client)
stubber.add_response(
'query',
dict(Items=list()),
expected_params=dict(
TableName='mytable',
KeyConditionExpression=key_expr,
FilterExpression=filter_expr,
),
)
with stubber:
response = table.query(
KeyConditionExpression=key_expr, FilterExpression=filter_expr
)
assert response['Items'] == []
stubber.assert_no_pending_responses()
def test_table_scan_can_be_stubbed_with_expressions(self):
table = self.resource.Table('mytable')
filter_expr = Attr('myattr').eq('foo') & (
Attr('myattr2').lte('buzz') | Attr('myattr2').gte('fizz')
)
stubber = Stubber(table.meta.client)
stubber.add_response(
'scan',
dict(Items=list()),
expected_params=dict(
TableName='mytable', FilterExpression=filter_expr
),
)
with stubber:
response = table.scan(FilterExpression=filter_expr)
assert response['Items'] == []
stubber.assert_no_pending_responses()
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