httptest.Server를 사용하여 Go에서 라이브 요청으로 HTTP 서버를 어떻게 테스트합니까?

<code class="go">// Create a router that will be used for testing.
router := mux.NewRouter()

// Create a test server using the router.
ts := httptest.NewServer(router)

// Send test requests to the server.
newreq := func(method, url string, body io.Reader) *http.Request {
    r, err := http.NewRequest(method, url, body)
    if err != nil {
        t.Fatal(err)
    }
    return r
}

tests := []struct {
    name string
    r    *http.Request
}{
    {name: "1: testing get", r: newreq("GET", ts.URL+"/", nil)},
    {name: "2: testing post", r: newreq("POST", ts.URL+"/", nil)},
}

for _, tt := range tests {
    t.Run(tt.name, func(t *testing.T) {
        resp, err := http.DefaultClient.Do(tt.r)
        defer resp.Body.Close()
        if err != nil {
            t.Fatal(err)
        }
        // Check for expected response.
    })
}</code>