You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: metrics_influxdb_integration_test.go
    path of file: ./repos/benthos/internal/impl/influxdb
    
    the code of the file until where you have to start completion: package influxdb

import (
	"context"
	"encoding/json"
	"fmt"
	"runtime"
	"testing"
	"time"

	client "github.com/influxdata/influxdb1-client/v2"
	"github.com/ory/dockertest/v3"
	"github.com/stretchr/testify/require"

	"github.com/benthosdev/benthos/v4/internal/integration"
)

func TestInfluxIntegration(t *testing.T) {
	if runtime.GOOS == "darwin" {
		t.Skip("skipping test on macos")
	}

	integration.CheckSkip(t)

	if testing.Short() {
		t.Skip("Skipping integration test in short mode")
	}

	pool, err := dockertest.NewPool("")
	if err != nil {
		t.Skipf("Could not connect to docker: %s", err)
	}
	pool.MaxWait = time.Second * 30

	resource, err := pool.RunWithOptions(&dockertest.RunOptions{
		Repository: "influxdb",
		Tag: 
    
func testInfluxConnect(t *testing.T, i *influxDBMetrics, c client.Client) {
	i.NewGaugeCtor("testing")().Set(31337)
	i.Close(context.Background())

	resp, err := c.Query(client.Query{Command: `SELECT "hostname"::tag, "value"::field FROM "testing"`, Database: "db0"})
	if err != nil {
		t.Errorf("problem with influx query: %s", err)
	}
	if resp.Error() != nil {
		t.Errorf("problem with influx result: %s", resp.Error())
	}

	if len(resp.Results) != 1 {
		t.Fatal("expected 1 result.")
	}
	if len(resp.Results[0].Series) != 1 {
		t.Fatal("expected 1 series.")
	}
	if len(resp.Results[0].Series[0].Values) != 1 {
		t.Fatal("expected 1 values.")
	}
	if len(resp.Results[0].Series[0].Values[0]) != 3 {
		t.Fatal("expected 3 values.")
	}

	// these show up as json.Number
	hostname := resp.Results[0].Series[0].Values[0][1].(string)
	if hostname != "localhost" {
		t.Errorf("expected localhost received %s", hostname)
	}
	val, err := resp.Results[0].Series[0].Values[0][2].(json.Number).Int64()
	if err != nil {
		t.Errorf("problem converting json.Number: %s", err)
	}
	if val != 31337 {
		t.Errorf("unexpected value")
	}
}