go/src/go/doc/comment/wrap_test.go

var wrapSeed …

func TestWrap(t *testing.T) { … }

// wrapSlow is an O(n²) reference implementation for wrap.
// It returns a minimal-score sequence along with the score.
// It is OK if wrap returns a different sequence as long as that
// sequence has the same score.
func wrapSlow(words []string, max int) (seq []int, score int64) { … }