Test the Tester

Built for Revyl

Paste a test. Find the holes before the bugs do.

About Revyl

Revyl is a YC Fall 2024 AI-native mobile testing platform. The founders built DragonCrawl at Uber, an LLM-based mobile testing framework that saved Uber $25M in four months. The premise: replace brittle script-based E2E tests that break on every UI change with natural-language tests that run on real cloud iOS and Android devices, wired to OpenTelemetry traces so bugs get caught before production.

Today

✕Write tests.

✕Hope they catch bugs.

✕Find out in production when they didn't.

With This Demo

✓Audit your tests before the bugs find them.

✓See exactly which assumptions your test is making.

✓See which ones are wrong.

	Script-based E2E	Revyl natural-language	This audit layer
Survives UI changes	No	Yes	N/A
Catches missing assertions	Never	Partial	Yes
Explains why a test is weak	No	No	Yes
Requires writing test code	Yes	No	No
Root cause analysis	Manual	Via OTel traces	Pre-run, structural
Runs on real devices	Emulators	Yes	N/A

What the audit covers

Adversarial analysis

Claude approaches your test as an attacker, not a reviewer. The goal is to find ways the test passes while the feature is broken, not ways to make the test more verbose.

Severity-scored weaknesses

Every flaw is categorized and rated high, medium, or low. Hard-coded waits and loose selectors are different problems with different blast radii.

Confidence score

A 0-100 number representing how likely this test is to catch a real bug. Most tests score 40-70. A test that scores 90 is genuinely rare and earns it.

Rewrite in Revyl style

The audit closes with a rewritten version of the test in Revyl's natural-language format: numbered steps, explicit assertions, no ambiguous verbs.

Run an audit

Paste any test below, or load one of the examples. Works with Cypress, Playwright, Appium, pytest, Revyl natural-language, or plain prose.

Paste a test, or load an example.

I'll find the holes.