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: run_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"

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

	"encoding/json"
	"fmt"
	"net/http"
	"testing
    
func TestRun(t *testing.T) {
	assistantID := "asst_abc123"
	threadID := "thread_abc123"
	runID := "run_abc123"
	stepID := "step_abc123"
	limit := 20
	order := "desc"
	after := "asst_abc122"
	before := "asst_abc124"

	client, server, teardown := setupOpenAITestServer()
	defer teardown()

	server.RegisterHandler(
		"/v1/threads/"+threadID+"/runs/"+runID+"/steps/"+stepID,
		func(w http.ResponseWriter, r *http.Request) {
			if r.Method == http.MethodGet {
				resBytes, _ := json.Marshal(openai.RunStep{
					ID:        runID,
					Object:    "run",
					CreatedAt: 1234567890,
					Status:    openai.RunStepStatusCompleted,
				})
				fmt.Fprintln(w, string(resBytes))
			}
		},
	)

	server.RegisterHandler(
		"/v1/threads/"+threadID+"/runs/"+runID+"/steps",
		func(w http.ResponseWriter, r *http.Request) {
			if r.Method == http.MethodGet {
				resBytes, _ := json.Marshal(openai.RunStepList{
					RunSteps: []openai.RunStep{
						{
							ID:        runID,
							Object:    "run",
							CreatedAt: 1234567890,
							Status:    openai.RunStepStatusCompleted,
						},
					},
				})
				fmt.Fprintln(w, string(resBytes))
			}
		},
	)

	server.RegisterHandler(
		"/v1/threads/"+threadID+"/runs/"+runID+"/cancel",
		func(w http.ResponseWriter, r *http.Request) {
			if r.Method == http.MethodPost {
				resBytes, _ := json.Marshal(openai.Run{
					ID:        runID,
					Object:    "run",
					CreatedAt: 1234567890,
					Status:    openai.RunStatusCancelling,
				})
				fmt.Fprintln(w, string(resBytes))
			}
		},
	)

	server.RegisterHandler(
		"/v1/threads/"+threadID+"/runs/"+runID+"/submit_tool_outputs",
		func(w http.ResponseWriter, r *http.Request) {
			if r.Method == http.MethodPost {
				resBytes, _ := json.Marshal(openai.Run{
					ID:        runID,
					Object:    "run",
					CreatedAt: 1234567890,
					Status:    openai.RunStatusCancelling,
				})
				fmt.Fprintln(w, string(resBytes))
			}
		},
	)

	server.RegisterHandler(
		"/v1/threads/"+threadID+"/runs/"+runID,
		func(w http.ResponseWriter, r *http.Request) {
			if r.Method == http.MethodGet {
				resBytes, _ := json.Marshal(openai.Run{
					ID:        runID,
					Object:    "run",
					CreatedAt: 1234567890,
					Status:    openai.RunStatusQueued,
				})
				fmt.Fprintln(w, string(resBytes))
			} else if r.Method == http.MethodPost {
				var request openai.RunModifyRequest
				err := json.NewDecoder(r.Body).Decode(&request)
				checks.NoError(t, err, "Decode error")

				resBytes, _ := json.Marshal(openai.Run{
					ID:        runID,
					Object:    "run",
					CreatedAt: 1234567890,
					Status:    openai.RunStatusQueued,
					Metadata:  request.Metadata,
				})
				fmt.Fprintln(w, string(resBytes))
			}
		},
	)

	server.RegisterHandler(
		"/v1/threads/"+threadID+"/runs",
		func(w http.ResponseWriter, r *http.Request) {
			if r.Method == http.MethodPost {
				var request openai.RunRequest
				err := json.NewDecoder(r.Body).Decode(&request)
				checks.NoError(t, err, "Decode error")

				resBytes, _ := json.Marshal(openai.Run{
					ID:        runID,
					Object:    "run",
					CreatedAt: 1234567890,
					Status:    openai.RunStatusQueued,
				})
				fmt.Fprintln(w, string(resBytes))
			} else if r.Method == http.MethodGet {
				resBytes, _ := json.Marshal(openai.RunList{
					Runs: []openai.Run{
						{
							ID:        runID,
							Object:    "run",
							CreatedAt: 1234567890,
							Status:    openai.RunStatusQueued,
						},
					},
				})
				fmt.Fprintln(w, string(resBytes))
			}
		},
	)

	server.RegisterHandler(
		"/v1/threads/runs",
		func(w http.ResponseWriter, r *http.Request) {
			if r.Method == http.MethodPost {
				var request openai.CreateThreadAndRunRequest
				err := json.NewDecoder(r.Body).Decode(&request)
				checks.NoError(t, err, "Decode error")

				resBytes, _ := json.Marshal(openai.Run{
					ID:        runID,
					Object:    "run",
					CreatedAt: 1234567890,
					Status:    openai.RunStatusQueued,
				})
				fmt.Fprintln(w, string(resBytes))
			}
		},
	)

	ctx := context.Background()

	_, err := client.CreateRun(ctx, threadID, openai.RunRequest{
		AssistantID: assistantID,
	})
	checks.NoError(t, err, "CreateRun error")

	_, err = client.RetrieveRun(ctx, threadID, runID)
	checks.NoError(t, err, "RetrieveRun error")

	_, err = client.ModifyRun(ctx, threadID, runID, openai.RunModifyRequest{
		Metadata: map[string]any{
			"key": "value",
		},
	})
	checks.NoError(t, err, "ModifyRun error")

	_, err = client.ListRuns(
		ctx,
		threadID,
		openai.Pagination{
			Limit:  &limit,
			Order:  &order,
			After:  &after,
			Before: &before,
		},
	)
	checks.NoError(t, err, "ListRuns error")

	_, err = client.SubmitToolOutputs(ctx, threadID, runID,
		openai.SubmitToolOutputsRequest{})
	checks.NoError(t, err, "SubmitToolOutputs error")

	_, err = client.CancelRun(ctx, threadID, runID)
	checks.NoError(t, err, "CancelRun error")

	_, err = client.CreateThreadAndRun(ctx, openai.CreateThreadAndRunRequest{
		RunRequest: openai.RunRequest{
			AssistantID: assistantID,
		},
		Thread: openai.ThreadRequest{
			Messages: []openai.ThreadMessage{
				{
					Role:    openai.ThreadMessageRoleUser,
					Content: "Hello, World!",
				},
			},
		},
	})
	checks.NoError(t, err, "CreateThreadAndRun error")

	_, err = client.RetrieveRunStep(ctx, threadID, runID, stepID)
	checks.NoError(t, err, "RetrieveRunStep error")

	_, err = client.ListRunSteps(
		ctx,
		threadID,
		runID,
		openai.Pagination{
			Limit:  &limit,
			Order:  &order,
			After:  &after,
			Before: &before,
		},
	)
	checks.NoError(t, err, "ListRunSteps error")
}