golang框架高并发应用的自动化测试

package main

import (
    "fmt"
    "github.com/gorilla/mux"
    "github.com/jinzhu/gorm"
    "log"
    "net/http"
)

func main() {
    db, err := gorm.Open("mysql", "user:password@/database")
    if err != nil {
        log.Fatalf("Failed to open database: %v", err)
    }
    defer db.Close()

    r := mux.NewRouter()
    r.HandleFunc("/users", createUser).Methods(http.MethodPost)

    log.Fatal(http.ListenAndServe(":8080", r))
}

func createUser(w http.ResponseWriter, r *http.Request) {
    // ...
}

package main

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

func TestCreateUser(t *testing.T) {
    // 创建一个 HTTP 请求
    req, err := http.NewRequest("POST", "/users", nil)
    if err != nil {
        t.Fatalf("Failed to create request: %v", err)
    }

    // 创建一个 HTTP 响应记录器
    rr := httptest.NewRecorder()

    // 调用处理函数
    createUser(rr, req)

    // 检查 HTTP 状态码
    if rr.Code != http.StatusOK {
        t.Errorf("Expected status code 200, got %d", rr.Code)
    }
}

package main

import (
    "net/http"
    "net/http/httptest"
    "sync"
    "testing"
)

func TestConcurrentCreateUser(t *testing.T) {
    const numReqs = 100

    // Create a wait group to wait for all requests to finish.
    var wg sync.WaitGroup
    wg.Add(numReqs)

    // Define a server and multiple clients
    s := httptest.NewServer(http.HandlerFunc(createUser))
    defer s.Close()
    clients := make([]http.Client, numReqs)

    // Create a single host reverse proxy that will send requests to the server
    proxy := httputil.NewSingleHostReverseProxy(s.URL)

    // Loop through the clients
    for i := 0; i < numReqs; i++ {
        // By passing in a pointer to the wait group, we enable it to be marked as done by the goroutine.
        go func(i int, wg *sync.WaitGroup) {
            defer wg.Done()
            testCreateUser(clients[i], proxy)
        }(i, &wg)
    }

    // Wait for all requests to finish.
    wg.Wait()
}

func testCreateUser(c http.Client, proxy *http.ReverseProxy) {
    // ...
}