mcollina/autocannon

expectBody not working as expected

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#457 opened on Jul 29, 2022

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 (11 comments) (0 reactions) (0 assignees)JavaScript (7,425 stars) (332 forks)batch import
bughelp wanted

Description

Hi @mcollina my version "autocannon": "^7.9.0", my codebase

let customResponse= customResponse

  url: 'http://localhost:3011/employees/api/searchtype/',
  amount: 10,
  connections: 1,
  pipelining: 1,
  //duration: 60,
  method: "POST",
  debug: true,
  expectBody: customResponse,
  headers: { "Content-Type": "application/json; charset=UTF-8", 'x-access-token': 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpYXQiOjE2NTkxMjMxMTd9.xavjahsbNggTSDBu6Vmsxzz6olPMXHTPggkFForZqaU' },
  body: JSON.stringify(customRequest),

}, (err, result) => {

  console.log(err);
  if (err != null) return; // or do some error handling
  handleResults(result);
})

The response which i am getting from api response is below API Response

and when I compare it http://www.jsondiff.com/ it was identical Problem statement

when i run the above i am getting mismatched results which should not happen if both the customResponse and API Response are identical

Any pointers on how to tackle this issue

Contributor guide

Tech stack
javascriptnodejs
Domain
backendtesting
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
needs investigation
Prerequisites
Node.js basicsautocannon usageunderstanding of HTTP benchmarking
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30
Research direction
The issue reports that expectBody fails to match identical response bodies. Start by examining autocannon's source code, particularly the expectBody validation logic in the 'lib' directory. Check if there is a comparison function that might have a bug with deep equality or JSON parsing. Review the comments on the issue for any clues from maintainers. Look for any recent commits or linked PRs that might address this. Consider writing a minimal reproduction test to isolate the problem.