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: config_test.go
    path of file: ./repos/traefik/pkg/config/dynamic
    
    the code of the file until where you have to start completion: package dynamic

import (
	"reflect"
	"testing"

	"github.com/BurntSushi/toml"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

func TestDeepCopy(t *testing.T) {
	cfg := &Configuration{}
	_, err := toml.DecodeFile("./fixtures/sample.toml", &cfg)
	require.NoError(t, err)

	cfgCopy := cfg
	assert.Equal(t, reflect.ValueOf(c
    
func TestDeepCopy(t *testing.T) {
	cfg := &Configuration{}
	_, err := toml.DecodeFile("./fixtures/sample.toml", &cfg)
	require.NoError(t, err)

	cfgCopy := cfg
	assert.Equal(t, reflect.ValueOf(cfgCopy), reflect.ValueOf(cfg))
	assert.Equal(t, reflect.ValueOf(cfgCopy), reflect.ValueOf(cfg))
	assert.Equal(t, cfgCopy, cfg)

	cfgDeepCopy := cfg.DeepCopy()
	assert.NotEqual(t, reflect.ValueOf(cfgDeepCopy), reflect.ValueOf(cfg))
	assert.Equal(t, reflect.TypeOf(cfgDeepCopy), reflect.TypeOf(cfg))
	assert.Equal(t, cfgDeepCopy, cfg)

	// Update cfg
	cfg.HTTP.Routers["powpow"] = &Router{}

	assert.Equal(t, reflect.ValueOf(cfgCopy), reflect.ValueOf(cfg))
	assert.Equal(t, reflect.ValueOf(cfgCopy), reflect.ValueOf(cfg))
	assert.Equal(t, cfgCopy, cfg)

	assert.NotEqual(t, reflect.ValueOf(cfgDeepCopy), reflect.ValueOf(cfg))
	assert.Equal(t, reflect.TypeOf(cfgDeepCopy), reflect.TypeOf(cfg))
	assert.NotEqual(t, cfgDeepCopy, cfg)
}