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: edits_test.go
    path of file: ./repos/go-openai
    
    the code of the file until where you have to start completion: package openai_test

import (
	"context"
	"encoding/json"
	"fmt"
	"io"
	"net/http"
	"testing"
	"time"

	"github.com/sashabaranov/go-openai"
	"github.com/sashabaranov/go-openai/internal/test/checks"
)

// TestEdits Tests the edits endpoint of the API using the mocked server.
func TestEdits(t *testing.T) {
	client, server, teardown := setupOpenAITestServer()
	defer teardown()
	server.RegisterHandler("/v1/edits", handleEditEndpoint)
	// create an edit request
	model := "ada"
	editReq := openai.EditsRequest{
		M
    
func handleEditEndpoint(w http.ResponseWriter, r *http.Request) {
	var err error
	var resBytes []byte

	// edits only accepts POST requests
	if r.Method != "POST" {
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
	}
	var editReq openai.EditsRequest
	editReq, err = getEditBody(r)
	if err != nil {
		http.Error(w, "could not read request", http.StatusInternalServerError)
		return
	}
	// create a response
	res := openai.EditsResponse{
		Object:  "test-object",
		Created: time.Now().Unix(),
	}
	// edit and calculate token usage
	editString := "edited by mocked OpenAI server :)"
	inputTokens := numTokens(editReq.Input+editReq.Instruction) * editReq.N
	completionTokens := int(float32(len(editString))/4) * editReq.N
	for i := 0; i < editReq.N; i++ {
		// instruction will be hidden and only seen by OpenAI
		res.Choices = append(res.Choices, openai.EditsChoice{
			Text:  editReq.Input + editString,
			Index: i,
		})
	}
	res.Usage = openai.Usage{
		PromptTokens:     inputTokens,
		CompletionTokens: completionTokens,
		TotalTokens:      inputTokens + completionTokens,
	}
	resBytes, _ = json.Marshal(res)
	fmt.Fprint(w, string(resBytes))
}