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Case studies

How Factors moved PR review from CodeRabbit to tests that actually run

  • Weeks → half a dayAPI test coverage for a release
  • 100+Deterministic and model-based checks on every PR
  • TeamProduct engineering
  • StackWeb app and APIs
  • What runsPR review, API testing
  • RegionIndia
Qodex review is far better than CodeRabbit, and API testing that took weeks now takes half a day. The quality is much higher.
Aravind MurthyCTO, Factors.ai

Background

A B2B SaaS team in Bengaluru shipping a web app on top of a set of APIs.

Factors.ai builds an account-based marketing and attribution platform: it tells B2B marketing teams which accounts to go after and which campaigns actually brought the revenue. The product is a web app backed by APIs, and the product engineering team ships to it continuously.

The problem

Review left comments. Test coverage took weeks.

Factors ran PR review on CodeRabbit. It commented on diffs, but a comment on a diff is not evidence that the change works.

API test coverage was a separate job. Writing the tests for a release took weeks, so coverage trailed the code instead of gating it.

The switch

Review on every pull request, then the tests run.

The team moved PR review to Qodex. Review now triggers on every pull request and runs 100+ deterministic and model-based checks against the change.

It does not stop at comments. Qodex generates the API collection for the change and runs the API tests against it, so the pull request carries a test result, not an opinion.

Results

Weeks of test writing became half a day.

API test coverage for a release that took weeks now takes half a day. The team rates the review quality well above what CodeRabbit gave them.

WhatBeforeAfter
API test coverage for a releaseWeeksHalf a day
PR reviewCodeRabbitQodex, 100+ checks per PR

What runs today

PR review and API testing on the same trigger.

Every pull request at Factors gets the 100+ check review and the generated API tests. Nothing was installed in the app and no agent was added to CI.

Aravind MurthyCTO, Factors.ai
  • Nothing to install in your app.
  • No agent in your CI.
  • No test rewrite.
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Story published with the customer's review pending.