refactor: refactor port and host naming conventions for clarity

- Rename `mappedPort01` to `masterPort` and `mappedPort02` to `slavePort`
- Update port number for the slave from `6380` to `6382`
- Rename `host01` to `masterName` and `host02` to `slaveName`

Signed-off-by: appleboy <[email protected]>

Author: appleboy

redis_test.go

@@ -170,10 +170,10 @@ func TestRedisCluster(t *testing.T) {
 	redisC, _ := setupRedisCluserContainer(ctx, t)
 	defer testcontainers.CleanupContainer(t, redisC)
 
-	mappedPort01, err := redisC.MappedPort(ctx, "6379")
+	masterPort, err := redisC.MappedPort(ctx, "6379")
 	assert.NoError(t, err)
 
-	mappedPort02, err := redisC.MappedPort(ctx, "6380")
+	slavePort, err := redisC.MappedPort(ctx, "6382")
 	assert.NoError(t, err)
 
 	hostIP, err := redisC.Host(ctx)
@@ -183,10 +183,10 @@ func TestRedisCluster(t *testing.T) {
 		Message: "foo",
 	}
 
-	host01 := fmt.Sprintf("%s:%s", hostIP, mappedPort01)
-	host02 := fmt.Sprintf("%s:%s", hostIP, mappedPort02)
+	masterName := fmt.Sprintf("%s:%s", hostIP, masterPort)
+	slaveName := fmt.Sprintf("%s:%s", hostIP, slavePort)
 
-	hosts := []string{host01, host02}
+	hosts := []string{masterName, slaveName}
 
 	w := NewWorker(
 		WithAddr(strings.Join(hosts, ",")),