func TestACSGoodNodes(t *testing.T) {
	inputs := map[int][]byte{
		0: []byte("AAAAAA"),
		1: []byte("BBBBBB"),
		2: []byte("CCCCCC"),
		3: []byte("DDDDDD"),
	}
	testCommonSubset(t, inputs)
}
Test ACS with 4 good nodes. The result should be that at least the output
of (N - f) nodes has been provided.
package hbbft
import (
	"testing"
	"time"
	"github.com/stretchr/testify/assert"
)