Test refactorings [DATAES-819]

**[sothawo](https://jira.spring.io/secure/ViewProfile.jspa?name=sothawo)** opened **[DATAES-819](https://jira.spring.io/browse/DATAES-819?redirect=false)** and commented


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**Affects:** 4.0 RC2 (Neumann)

**Referenced from:** pull request https://github.com/spring-projects/spring-data-elasticsearch/pull/450
