go test -v should print logs as they're executed, not at the end

[jeanbza]

Please answer these questions before submitting your issue. Thanks!

What version of Go are you using (go version)?

go version go1.10 darwin/amd64

What did you do?

go test -v with some code that hangs.

What did you expect to see?

Logs.

What did you see instead?

Nothing. In the case where my code hangs forever, I don't get any test logs because logs are only printed in the success/fail case. Ctrl+C means I never get logs.

Furthermore, -v not showing logs means I get no sense of timing in test runs.

It's a real bummer to mass replace t.Log with fmt.Println, get my tests fixed, and then mass replace fmt.Println with t.Log.

[andybons]

Duplicate of #23213

[jeanbza]

👍 thanks!