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: command_test.go
    path of file: ./repos/athenapdf/weaver/gcmd
    
    the code of the file until where you have to start completion: package gcmd

import (
	"reflect"
	"testing"
)

func TestExecute(t *testing.T) {
	testString := "test execute"
	mockTerminate := make(chan struct{}, 1)
	got, err := Execute([]string{"echo", testString}, mockTerminate)
	if err != nil {
		t.Fatalf("exec
    
func TestExecute(t *testing.T) {
	testString := "test execute"
	mockTerminate := make(chan struct{}, 1)
	got, err := Execute([]string{"echo", testString}, mockTerminate)
	if err != nil {
		t.Fatalf("execute returned an unexpected error: %+v", err)
	}
	if want := []byte(testString + "\n"); !reflect.DeepEqual(got, want) {
		t.Errorf("expected output of executed command to be %+v, got %+v", want, got)
	}
}