timeout.go

package main

import (
	"context"
	"fmt"
	"net/http"
	"time"
)

func test(a, b, c int) {
	ctx, cancel := context.WithTimeout(context.Background(), time.Duration(a)*time.Second)
	defer cancel()

	client := &http.Client{
		Timeout: time.Duration(b) * time.Second,
	}

	request, _ := http.NewRequest("GET", fmt.Sprintf("https://httpbin.org/delay/%d", c), nil)
	if _, err := client.Do(request.WithContext(ctx)); err != nil {
		fmt.Printf("Error: %s\n", err.Error())
	}
}

func main() {
	test(2, 1, 3)
	test(1, 2, 3)
}