[UnitTests] - Add unit tests on example and extend example project with more supported features

[farhadnowzari]

Is your feature request related to a problem? Please describe.

• The example project needs to have a unit test and the unit test should be checked by github actions to make sure the integration is also fine.
• The example right now do basic actions. We should add more examples like upsert, using archive, queries and using anonymous queries.