Nobody's testing what they ship.
AI coding tools changed how fast code gets written. They didn't change how often bugs reach production.
more major issues in AI co-authored code compared to human-written code. — CodeRabbit analysis, 470 PRs
higher rate of XSS and security vulnerabilities in AI-generated code versus manually written code.
of vibe coders report spending more time debugging than before they started using AI coding tools.
of AI-augmented coding projects will be cancelled by 2027 due to quality and maintenance costs. — Gartner
“Vibe Testing is a new paradigm where AI agents autonomously validate your application on every code change — generating, executing, and maintaining tests without developers writing a single script. If vibe coding lets you describe what to build, vibe testing lets an AI verify it actually works.
No selectors. No frameworks. No maintenance.
Every PR tested.
Add DevAssure O2 to your GitHub Actions workflow. When a developer opens a PR, O2 reads the diff, maps which user flows are affected, generates E2E tests, runs them on real browsers, and posts results back to the PR. Your team never writes or maintains a test.
No human in the loop.
Reads the code diff
O2 starts from the branch comparison or commit hash. It parses changed files, functions, and dependencies to understand what was actually modified.
// diff: feature/checkout → main changed_files: 18 context_built: 130 lines analyzed + discount logic rewritten - old_discount_calc() removed
Maps the blast radius
Instead of guessing, O2 traces changes to the exact user journeys and screens most likely to break. Checkout changed? It tests checkout — not the settings page.
impact_analysis: process_order ├── checkout AFFECTED ├── inventory WATCH └── email SAFE affected_flows: 9
Generates targeted tests
O2 auto-creates E2E test scenarios for the impacted flows. Tests are written in plain English YAML — no Playwright, no Cypress, no selectors.
summary: Checkout with discount priority: P0 steps: - add item to cart - apply promo code SAVE20 - verify discount applied - complete checkout tags: [checkout, discount]
Executes on real browsers
Tests run in headless Chrome within your CI pipeline. If a selector drifts or UI shifts, the agent adapts its path in real time. Zero flakiness.
session_id: da_8f2a1c9b browser: chrome-headless tests_run: 27 passed: 26 failed: 1 ✗ P0 Bug: test_payment_retry_flow → Discount not applied on retry
Results in your PR
O2 posts results as a GitHub check. Bugs are flagged with screenshots and session replays. Your team reviews code, not test scripts.
GitHub PR #347 ────────────────── ✓ DevAssure O2 — 26/27 passed ✗ 1 bug detected ↳ Screenshot attached ↳ Session replay: da_8f2a1c9b Merge blocked until resolved
Here's what changes when you switch from traditional test automation to vibe testing with DevAssure O2.
No selectors. No page objects. No framework lock-in. Describe what should happen in YAML, and the O2 agent figures out how to execute it. When the UI changes, the agent adapts — you never touch the test again.
Or skip writing tests entirely — O2 can auto-generate them from your code diff. That's vibe testing.