Knex from version 0.95 now needs tedious to work with mssql
"MSSQL driver was completely reworked in order to address the multitude of connection pool, error handling and performance issues. Since the new implementation uses tedious library directly instead of mssql, please replace mssql with tedious in your dependencies if you are using a MSSQL database. "
Knex from version 0.95 now needs
tedious
to work with mssqlRef: https://github.com/knex/knex/blob/master/UPGRADING.md#upgrading-to-version-0950
After adding it, the tests with SQL Server returned to work.