Glossary
Shift-left testing means checking assumptions and behavior earlier in development, when changing an implementation is usually easier than after release.
Early feedback can identify an unclear requirement or broken flow before other work depends on it. Moving tests earlier does not remove the need to test deployed behavior.
Teams write acceptance criteria alongside the change, use unit and integration tests during development and add browser tests for important complete journeys.
Draft and run a Zerocheck browser test while implementing a flow. Use the optional local CLI for localhost and private environments, or the hosted web app for a reachable URL. Local runs still use Zerocheck’s AI service and upload results.