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: group_test.go
    path of file: ./repos/jennifer/jen
    
    the code of the file until where you have to start completion: package jen_test

import (
	"bytes"
	"testing"

	. "github.com/dave/jennifer/jen"
)

func TestGroup_Render(t *testing.T) {
	file := NewFile("main")
	file.ImportAlias("fmt", "fmtalias")

	var g *Group
	BlockFunc(func(group *Group) {
		g = group
	})

	g.Qual("fmt", "Errorf").Ca
    
func TestGroup_Render(t *testing.T) {
	file := NewFile("main")
	file.ImportAlias("fmt", "fmtalias")

	var g *Group
	BlockFunc(func(group *Group) {
		g = group
	})

	g.Qual("fmt", "Errorf").Call(Lit("error"))

	expect := `{
	fmtalias.Errorf("error")
}`

	var got bytes.Buffer

	err := g.RenderWithFile(&got, file)
	if err != nil {
		t.Fatal(err)
	}

	if got.String() != expect {
		t.Fatalf("Got: %v, expect: %v", got.String(), expect)
	}
}