sample httptest usage

ping_test.go

package main

import (
    "io/ioutil"
    "net/http"
    "net/http/httptest"
    "testing"
)

func TestPingHandler(t *testing.T) {
    ts := httptest.NewServer(http.HandlerFunc(PingHandler))

    resp, err := http.Get(ts.URL)

    if err != nil {
        t.Fatal(err)
    }

    if resp.StatusCode != 200 {
        t.Fatalf("Received non-200 response: %d\n", resp.StatusCode)
    }

    expected := "PING"

    actual, err := ioutil.ReadAll(resp.Body)

    if err != nil {
        t.Fatal(err)
    }

    if expected != string(actual) {
        t.Errorf("Expected the message '%s' but got '%s'\n", expected, actual)
    }

    t.Log("Tested OK:", resp)
}