One 、 brief introduction

Locust （ grasshopper ） It's an easy to use 、 Scriptable and extensible performance testing tool

Two 、 install loust

#  If you have not Python 3.6  Or later , Please install it .
 pip3 install locust
 
# Verify your installation 
@songpeilunMacBook-Pro ~ % locust -V
locust 1.4.3
@songpeilunMacBook-Pro ~ %

3、 ... and 、 First time to know

Locust Part of the

Locust from 2 Part of it is made up of
1. The task class （ Inherit TaskSet）
2.Locust class ( Inherit HTTPLocust)
notes ： stay 1.0 In the version ,HttpLocust Class has been renamed to HttpUser

Locust Operation level

The task class （ Inherit TaskSet）

Illustrate with examples

test.py file

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time : 2021/11/22 11:06  In the morning 
# @Name : peilun
# @File : test.py
# @Software: PyCharm
from locust import HttpUser, TaskSet, task, between
import os

#  The task class 
#  Need to inherit Locust class 
class MyTasks(TaskSet):
    def setup(self):
        print(" Task initialization ")

    def teardown(self):
        print(" End of the task ")

    def on_start(self):
        print(" User initialization -- Sign in ")


    def on_stop(self):
        print(" user -- end ")


    @task
    def post_login(self):
        print(' Custom function execution ...')

# Locust class 
class User(HttpUser):
    tasks = [MyTasks]
    host = 'https://www.baidu.com/'
    wait_time = between(2, 2)

    def setup(self):
        print("Locust  initialization ")

    def teardown(self):
        print("Locust  end ")


if __name__ == '__main__':
    os.system("locust -f test.py")