How can stdout be captured or suppressed for Go(lang) testing?

Question

How can stdout be captured or suppressed for Go testing?

I am trying to teach myself go(lang) testing. In the code below, myshow.LoadPath prints lots of information to

Answer 1

To suppress the output during the test I use the following code. I fixes output as well as logging. After test is done it resets the output streams.

func TestStartStowWrongCommand(t *testing.T) {
 defer quiet()()   
 ...                      
}

func quiet() func() {
 null, _ := os.Open(os.DevNull)
 sout := os.Stdout
 serr := os.Stderr
 os.Stdout = null
 os.Stderr = null
 log.SetOutput(null)
 return func() {
  defer null.Close()
  os.Stdout = sout
  os.Stderr = serr
  log.SetOutput(os.Stderr)
 }
}