Test login with multiple users

[nicholaswkc34]

I had a SSO login service uses by a bunch of application. This SSO login service had slow performance on search query. I wonder how to test concurrently login 1000000 users using Locust on different users.

Questions:

Store username and password as map data structure and insert into map.
Replace the username and password which read from file.

Below is my code right now:

import logging
import collections
from locust import HttpUser, task, between, FastHttpUser, events
from locust.runners import MasterRunner
from http.client import HTTPConnection
from urllib3 import PoolManager

#Using FastHttpUser
class WebsiteFastUser(FastHttpUser):
    # some things you can configure on FastHttpUser
    connection_timeout = 60.0
    insecure = True
    max_redirects = 5
    max_retries = 10

    ####################################################################################################################
    @events.test_start.add_listener
    def on_test_start(environment, **kwargs):
        if not isinstance(environment.runner, MasterRunner):
            print("Beginning test setup")
        else:
            print("Started test from Master node")

    @events.test_stop.add_listener
    def on_test_stop(environment, **kwargs):
        print(environment.runner.stats.total.fail_ratio)
        # Send test report

    def on_start(self):
        self.client.get("/")

    def readFile(self):
        f = open("user.txt", "r")
        for x in f:
            print(x)

    @task
    def login(self):
        response = self.client.post("/", {"username": "nicholaswkc34@gmail.com",
            "password": "abcd1234"})

Please help. Thanks in advance.

[cyberw]

Hi! In general, the answer is: Use regular Python code.

You might also want to check out locust-plugins CSVReader https://github.com/SvenskaSpel/locust-plugins/blob/master/examples/csvreader_ex.py

[nicholaswkc34]

Thanks for your reply. I had done read from txt file. The problem is how to load test 100k users for multiple login. What is the approach?

[nicholaswkc34]

I know how to read from txt file, The problem now is how to load test 100k for multiple login. What is the right approach? Thanks in advance.

[cyberw]

Sorry, your question is too broad. What have you tried so far?

[nicholaswkc34]

I tried to code the post request using dictionary structure but one thread represents one user. I want an ideal approach to load test multiple users effectively and mimic real world scenario.

@task
def login(self):
self.client.request_name = "API Login"
response = self.client.post("",
{"username": "", "password": ""})
logging.info("Login with " )

[nicholaswkc34]

Please help. Thanks in advance.

[cyberw]

Hi! Sorry, I don't have time :(

If you want paid/commercial support for Locust, I suggest reaching out to locust.cloud

[cgoldberg]

@nicholaswkc34

An example of reading usernames from a CSV file using locust.plugins was already given to you:

https://github.com/SvenskaSpel/locust-plugins/blob/master/examples/csvreader_ex.py

Here is an example of a different approach... generating usernames programmatically in your Python code:

https://loadforge.com/directory/multiple-users