No need for more than one client with internal concurrency

main_test.go

@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"net/http"
 	"net/http/httptest"
+	"os"
 	"sync/atomic"
 	"testing"
 	"time"
@@ -20,8 +21,11 @@ func TestAttackRate(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	attack(targets, "random", 50, 1*time.Second, NewTextReporter())
-	if hits := atomic.LoadUint64(&hitCount); hits != 50 {
-		t.Fatalf("Wrong number of hits: want %d, got %d\n", 50, hits)
+	rate := uint(5000)
+	rep := NewTextReporter()
+	attack(targets, "random", rate, 1*time.Second, rep)
+	if hits := atomic.LoadUint64(&hitCount); uint(hits) != rate {
+		rep.Report(os.Stdout)
+		t.Fatalf("Wrong number of hits: want %d, got %d\n", rate, hits)
 	}
 }