small naming and output tweaks for tests
diff --git a/packet-manager_test.go b/packet-manager_test.go
index d48e6aa..96ff4b6 100644
--- a/packet-manager_test.go
+++ b/packet-manager_test.go
@@ -7,15 +7,15 @@
 	"github.com/stretchr/testify/assert"
 )
 
-type _sender struct {
+type _testSender struct {
 	sent chan encoding.BinaryMarshaler
 }
 
-func newsender() *_sender {
-	return &_sender{make(chan encoding.BinaryMarshaler)}
+func newTestSender() *_testSender {
+	return &_testSender{make(chan encoding.BinaryMarshaler)}
 }
 
-func (s _sender) sendPacket(p encoding.BinaryMarshaler) error {
+func (s _testSender) sendPacket(p encoding.BinaryMarshaler) error {
 	s.sent <- p
 	return nil
 }
@@ -67,7 +67,7 @@
 var tables = [][]pair{ttable1, ttable2, ttable3}
 
 func TestPacketManager(t *testing.T) {
-	sender := newsender()
+	sender := newTestSender()
 	s := newPktMgr(sender)
 
 	for i := range tables {
diff --git a/server_test.go b/server_test.go
index 5a9513d..804b5d3 100644
--- a/server_test.go
+++ b/server_test.go
@@ -82,7 +82,7 @@
 	}
 
 	recvChan := make(chan requestPacket, len(packets)+1)
-	sender := newsender()
+	sender := newTestSender()
 	pm := newPktMgr(sender)
 	svr := Server{pktMgr: pm}
 	wg := sync.WaitGroup{}
@@ -109,10 +109,10 @@
 		received = append(received, p)
 	}
 	if received[len(received)-2].id() != packets[len(packets)-2].id() {
-		t.Fatal("Packets processed out of order.")
+		t.Fatal("Packets processed out of order1:", received, packets)
 	}
 	if received[len(received)-1].id() != packets[len(packets)-1].id() {
-		t.Fatal("Packets processed out of order.")
+		t.Fatal("Packets processed out of order2:", received, packets)
 	}
 }