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: monitor_test.go
    path of file: ./repos/juju/worker/common/reboot
    
    the code of the file until where you have to start completion: // Copyright 2020 Canonical Ltd.
// Licensed under the AGPLv3, see LICENCE file for details.

package reboot_test

import (
	"testing"

	"github.com/juju/names/v5"
	jc "github.com/juju/testing/checkers"
	gc "gopkg.in/check.v1"

	"github.com/juju/juju/worker/common/reboot"
)

type monitorSuite struct{}

var _ = gc.Suite(&monitorSuite{})

func (s *monitorSuite) TestQueryMonitor(c *gc.C) {
	transientDir := c.MkDir()
	mon := reboot.NewMonitor(transientDir)

	unit, err := names.ParseUnitTag("unit-wordpress-0")
	c.
    
func (s *monitorSuite) TestQueryMonitor(c *gc.C) {
	transientDir := c.MkDir()
	mon := reboot.NewMonitor(transientDir)

	unit, err := names.ParseUnitTag("unit-wordpress-0")
	c.Assert(err, jc.ErrorIsNil)

	// Since we pointed the monitor to an empty dir, querying it should
	// return true (reboot detected) and the flag file will be created.
	rebootDetected, err := mon.Query(unit)
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(rebootDetected, jc.IsTrue)

	// Querying the monitor a second time should return false as we
	// already processed the reboot notification
	rebootDetected, err = mon.Query(unit)
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(rebootDetected, jc.IsFalse, gc.Commentf("got unexpected reboot notification"))

	// If we purge the monitor's state for this entity we can query it
	// again and get a reboot detected notification.
	err = mon.PurgeState(unit)
	c.Assert(err, jc.ErrorIsNil)

	rebootDetected, err = mon.Query(unit)
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(rebootDetected, jc.IsTrue)
}