Just a hint: how to make `color` pkg works in `go test` command.

Currently, this package does not works when run command go test.

Such as t.Errorf("error message") will not print colored text content.

A bypass solution:

First, color.NoColor = false is a must to config.

Them, color.Red("error message") + t.FailNow() == t.Errorf()

And it works for me now.