# Simulate elasticsearch client

**URL:** <https://discuss.elastic.co/t/simulate-elasticsearch-client/80975>\
**Category:** Elasticsearch\
**Created:** [April 3, 2017, 9:33am UTC](https://discuss.elastic.co/t/simulate-elasticsearch-client/80975 "2017-04-03T09:33:14Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![usund](https://avatars.discourse-cdn.com/v4/letter/u/d26b3c/32.png) [@usund](https://discuss.elastic.co/u/usund)\
**Post date:** [April 3, 2017, 9:33am UTC](https://discuss.elastic.co/t/simulate-elasticsearch-client/80975/1 "2017-04-03T09:33:14Z")

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Hi,  
Is it possible to simulate an elasticsearch client for testing without having an instance of elasticsearch running

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**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [April 3, 2017, 10:25am UTC](https://discuss.elastic.co/t/simulate-elasticsearch-client/80975/2 "2017-04-03T10:25:29Z")

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No. I'm not aware of any OOTB mock like this.

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**Author:** ![usund](https://avatars.discourse-cdn.com/v4/letter/u/d26b3c/32.png) [@usund](https://discuss.elastic.co/u/usund)\
**Post date:** [April 4, 2017, 4:06am UTC](https://discuss.elastic.co/t/simulate-elasticsearch-client/80975/3 "2017-04-04T04:06:02Z")

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Cant we get mock client using ESIntegTestCase ? I found a class MockNode which also returns the client. Cant this be used for mocking a client?

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**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [April 4, 2017, 4:28am UTC](https://discuss.elastic.co/t/simulate-elasticsearch-client/80975/4 "2017-04-04T04:28:32Z")

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To do integration tests, use a real elasticsearch instance.

What is your build system?

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**Author:** ![usund](https://avatars.discourse-cdn.com/v4/letter/u/d26b3c/32.png) [@usund](https://discuss.elastic.co/u/usund)\
**Post date:** [April 4, 2017, 5:20am UTC](https://discuss.elastic.co/t/simulate-elasticsearch-client/80975/5 "2017-04-04T05:20:47Z")

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Our build system is gradle. I found few classes like MockNode, TransportFactory, NodeTestCluster does they create mock client?

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**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [April 4, 2017, 7:38am UTC](https://discuss.elastic.co/t/simulate-elasticsearch-client/80975/6 "2017-04-04T07:38:26Z")

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Great. I think you might be able to reuse the gradle tasks we built for integration testing.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [May 2, 2017, 7:38am UTC](https://discuss.elastic.co/t/simulate-elasticsearch-client/80975/7 "2017-05-02T07:38:26Z")

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