Develop a complex SQL query by writing tests. Then when all tests pass, modify one statement in the SQL query and run the tests. If no tests complain, you have created a surviving mutant. Now create a test that will kill the surviving mutant. Or, perhaps you have faulty logic?

[veganaiZe]

@alexbunardzic

• What exactly are we testing here?

  • the SQL db engine itself?
  • the program utilizing SQL for persistence?
  • stored procedures?
  • the queries themselves?

• Do we have dummy data for the database?

• What would a simple example of a query & mutation look like, to you?

[veganaiZe]