The Problem
When APIs evolve, most tests fail for non-breaking reasons — new optional fields, added metadata, or extended enums. Teams told us: "We changed one response field and 200 tests broke."These false failures waste hours and erode trust in test automation.
What's New
Keploy introduces self-healing tests — they automatically adapt when expected, non-breaking API changes occur, while still flagging real regressions.
Self-Healing Tests — Automatically adapt to safe API changes while still flagging true regressions.
Safe Evolutions
New optional field
PASSESAuto-updates assertions
New enum value
PASSESRecognized as additive
Extra metadata
PASSESIgnored if non-breaking
Breaking Changes
Removed required field
FAILSIdentifies missing mandatory fields
Field type changed
FAILSDetects invalid data type changes
Status code changed
FAILSCaptures unexpected error responses
Before vs After
Before
Traditional Tests
- Fail for every schema addition
- Require manual assertion edits
- Block CI/CD with false alarms
- Hours of maintenance per release
After
Self-Healing Tests
- Auto-adapts to non-breaking changes
- Zero manual intervention needed
- 70% less test maintenance
- Only real breakages fail CI
Real Example
Added "lastModified"
45 tests auto-adapted
New enum "pending"
12 tests passed
Removed "email" field
8 tests flagged (correct)
Efficiency Gained
Quality Assured
Why This Matters
APIs evolve fast — most changes don't break clients. Keploy keeps tests relevant and trustworthy by distinguishing between real and expected changes, reducing false failures by 70%.
