Run http.ListenAndServe() On Tests using stretchr/testify suite Stop Test From Proceed

Question

I'm trying to create integration tests for my REST API application which I made using gorilla/mux, gorm.io and golang-migrate/v4

For the tests I'm using testify.

My SetupSuite() in my integration_Test.go is like this:

func (s *ReceiptServiceTestSuite) SetupSuite() {
    s.Require().NoError(godotenv.Load("test.env"))
    s.Require().NoError(database.Connect())
    s.db = database.DB
    s.m = database.M

    router.HandleRequests()
}

And my router.HandleRequests() is like this:

func HandleRequests() {
    router := mux.NewRouter()
    router.Use(middleware)
    // lots of router.HandleFunc()
    
    http.ListenAndServe(":8080", router)
}

The thing is: if I remove router.HandleRequests() from the SetupSuite(), all my database tests run normally, but if I try to http.ListenAndServe() the test workflow stop and nothing happens.

I believe that I should use goroutines with router.HandleRequests() so it can run parallel with the tests, I just can't figure it out how to do it.

For further information, here is the project repository, and I don't know if it is relevant, but I'm running two postgres instances using docker-compose, one for the project to run and another for the tests.