The Testing index contains test definition items used in the test lists in Experience Optimization and the Experience Editor. This does not include the suggested tests list.
It is also used in the Sitecore client UI to report on any tests present on an item.
You can host the Testing index on:
Lucene (developer environments only)
Refer to the Sitecore compatibility table for compatible versions.
The Testing index has its place in the Sitecore reference structure. It can be referenced by other roles, and it can also reference other roles.
The Testing index is referenced by the following roles:
The Testing index does not reference other roles.
Privacy and security
Assuming default behavior, the Testing index does not store personal data.