Try to fix race again - don't reuse clients for sender/receiver

Signed-off-by: Doug Davis <dug@microsoft.com>

test/integration/kafka_sarama_binding/kafka_test.go

@@ -10,7 +10,6 @@ import (
 	"os"
 	"strings"
 	"testing"
-	"time"
 
 	"github.com/IBM/sarama"
 	"github.com/google/uuid"
@@ -91,25 +90,30 @@ func testClient(t testing.TB) sarama.Client {
 }
 
 func testSenderReceiver(t testing.TB) (func(), bindings.Sender, bindings.Receiver, string) {
-	client := testClient(t)
-
 	topicName := "test-ce-client-" + uuid.New().String()
-	p, err := kafka_sarama.NewProtocolFromClient(client, topicName, topicName, kafka_sarama.WithReceiverGroupId(TEST_GROUP_ID))
+
+	// Create a 'client' and 'protocol" for the Receiver side
+	clientR := testClient(t)
+	protocolR, err := kafka_sarama.NewProtocolFromClient(clientR, topicName, topicName, kafka_sarama.WithReceiverGroupId(TEST_GROUP_ID))
 	require.NoError(t, err)
-	require.NotNil(t, p)
+	require.NotNil(t, protocolR)
+
+	// Create a 'client' and 'protocol" for the Sender side
+	clientS := testClient(t)
+	protocolS, err := kafka_sarama.NewProtocolFromClient(clientS, topicName, topicName, kafka_sarama.WithReceiverGroupId(TEST_GROUP_ID))
+	require.NoError(t, err)
+	require.NotNil(t, protocolS)
 
 	go func() {
-		require.NoError(t, p.OpenInbound(context.TODO()))
+		require.NoError(t, protocolR.OpenInbound(context.TODO()))
 	}()
 
-	// Not perfect but we need to give OpenInbound() as chance to start
-	// as it's a race condition. I couldn't find something on 'p' to wait for
-	time.Sleep(6 * time.Second)
-
 	return func() {
-		require.NoError(t, p.Close(context.TODO()))
-		require.NoError(t, client.Close())
-	}, p, p, topicName
+		require.NoError(t, protocolR.Close(context.TODO()))
+		require.NoError(t, protocolS.Close(context.TODO()))
+		require.NoError(t, clientR.Close())
+		require.NoError(t, clientS.Close())
+	}, protocolS, protocolR, topicName
 }
 
 func BenchmarkSendReceive(b *testing.B) {