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: singleton_app.go
    path of file: ./repos/IOC-golang/test/stress/autowire
    
    the code of the file until where you have to start completion: /*
 * Copyright (c) 2022, Alibaba Group;
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file 
    
func (s *SingletonApp) RunTest(t *testing.T) {
	// test creat by API
	createByAPIService1, err := GetServiceImpl1IOCInterfaceSingleton()
	assert.Nil(t, err)
	assert.Equal(t, expectString, createByAPIService1.GetHelloString(reqString))

	// test injection by API
	assert.Equal(t, expectString, s.Service1OwnInterface.GetHelloString(reqString))
	assert.Equal(t, expectString, s.ServiceStruct.GetString(reqString))
	assert.Equal(t, expectString, s.ServiceImpl1.GetHelloString(reqString))
	assert.Equal(t, expectString, s.ServiceImpl2.GetHelloString(reqString))
}