Example main with chan args test

golang_test_main_http_server_main_test.go

package main

import (
	"errors"
	"github.com/stretchr/testify/require"
	"net"
	"testing"
	"time"
)

func TestMainStart(t *testing.T) {
	err := errors.New("tmp")
	done := make(chan bool)
	go func() { err = Main(done) }()
	select {
	case <-time.After(2 * time.Second):
		done <- true
		time.Sleep(time.Second)
	case <-done:
	}

	require.NoError(t, err)
}

func TestMainError(t *testing.T) {
	var err error
	done := make(chan bool)

	net.Listen("tcp", ":8080")
	go func() { err = Main(done) }()
	select {
	case <-time.After(2 * time.Second):
		done <- true
		time.Sleep(time.Second)
	case <-done:
	}

	require.Error(t, err)
}