FReT is a unit test framework with interactive testing and authoring of tests. In the future it shall implement test result analysis, integration with system definition facilities, etc.

FReT is a Development tool, an abbreviation for Framework for Regression Testing. It is CLOS-based, along the lines of XPTEST and clos-unit: test cases are organized in suites that are arranged in an inheritence hierarchy, with fixtures attached to suites. All these are explicitly represented, which makes it easy for adding new cases and suites, or modifying existing ones.

The API for this has been inspired by LIFT, though the names and syntax have been changed a little.