Provides throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container.

Captures log entries for unit testing purposes.

TestNG-like data provider/runner for JUnit.

Reports whether instances of a given class are immutable.

Tests if a request/response matches a given RAML definition.

Snapshot testing (inline and on disk).

Captures console output for unit testing purposes.

Captures log entries and provides assertions for unit and integration testing.