marginal test

marginal test

[′mär·jən·əl ′test]
(electronics)
A test of electronic equipment in which conditions are varied until failures occur or faults can be detected, allowing measurement of permissible operating margins.

marginal test

A system test that introduces values far above and far below the expected values.
References in periodicals archive ?
Tonight it's Mississippi Valley State, a team that figures to offer only a marginal test before the tournament becomes more demanding.