Unittest with conditions

The problem I’m having

Writing a unit test with condition (exact with <= )

The context of why I’m trying to do this

Charging capability of a Electric car charging station is classifid as normal or fast, normal Electric car charging station are classified with <= 22 kW

Value change of another column if value is smaller than.

What I’ve already tried

  • Integrating the condition in the unittest code
  • casting the test cases to different datatypes

Some example code or error messages

 An error occurred during execution of unit test 'test_chargingtype'. There may be an error in the unit test definition: check the data types.
   Database Error
    invalid input syntax for type numeric: "< 22"
    LINE 24:     cast('< 22' as numeric)
                      ^