Add tests of different data type to Toolbox integration test

[Yuan325]

Prerequisites

• [x] Search the current open issues

Related to #840. We currently don't have integration tests that checks the different data types.

Previously, users have found issues with JSON data returning base-64 encoded values by the drivers (same with long texts or chinese characters). Adding integration tests for these different data types will help ensure that other sources doesn't have the same issue.