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_test.go
    path of file: ./repos/juju/cmd/juju/metricsdebug
    
    the code of the file until where you have to start completion: // Copyright 2016 Canonical Ltd.
// Licensed under the AGPLv3, see LICENCE file for details.

package metricsdebug_test

import (
	stdtesting "testing"
	"time"

	"github.com/juju/cmd/v3/cmdtesting"
	"github.com/juju/errors"
	"github.com/juju/testing"
	jc "github.com/juju/testing/checkers"
	gc "gopkg.in/check.v1"

	"github.com/juju/juju/cmd/juju/metricsdebug"
	"github.com/juju/juju/cmd/modelcmd"
	"github.com/juju/juju/rpc/params"
	coretesting "github.com/juju/juju/testing"
)

func TestPackage(t *stdtesting.T) {
	gc.TestingT(t)
}

type mo
    
func (s *metricsSuite) TestDefaultTabularFormat(c *gc.C) {
	s.client.metrics = []params.MetricResult{{
		Unit:  "unit-metered-0",
		Key:   "pongs",
		Value: "15.0",
		Time:  time.Date(2016, 8, 22, 12, 02, 04, 0, time.UTC),
	}, {
		Unit:  "unit-metered-0",
		Key:   "pings",
		Value: "5.0",
		Time:  time.Date(2016, 8, 22, 12, 02, 03, 0, time.UTC),
	}}
	ctx, err := cmdtesting.RunCommand(c, metricsdebug.NewMetricsCommandForTest(), "metered/0")
	c.Assert(err, jc.ErrorIsNil)
	s.client.CheckCall(c, 0, "GetMetrics", []string{"unit-metered-0"})
	c.Assert(cmdtesting.Stdout(ctx), gc.Equals, `UNIT          	           TIMESTAMP	METRIC	VALUE	LABELS
unit-metered-0	2016-08-22T12:02:03Z	 pings	  5.0	      
unit-metered-0	2016-08-22T12:02:04Z	 pongs	 15.0	      
`)
}