package mailer import ( "testing" "github.com/stretchr/testify/assert" ) func TestFakeServer(t *testing.T) { assert := assert.New(t) s := &Service{ SMTPHost: "127.0.0.1", SMTPPort: -2, SMTPUsername: "user", SMTPPassword: "password", SMTPSSL: false, } // Port assert.Panics(func() { mock, _ := newFakeServer(s) mock.Close() }) }