How can you execute a specific set of tests in your system or project?

In Go, to run a specific set of tests, you can use the -run flag with the go test command. This flag accepts a regular expression to filter the names of test functions.

For example, if you have tests TestCreateUser, TestDeleteUser, and TestUpdateUser, and you want to run only the tests related to creating a user, you can execute:

 go test -run ^TestCreateUser$

Or to run all tests with the word User in their name:

 go test -run User

This allows flexible selection of tests without changing the code.