The phrase "a unique test for" is correct and usable in written English.
You can use it when referring to a specific assessment or evaluation that is distinct or one-of-a-kind for a particular purpose or subject.
Example: "The researchers developed a unique test for measuring cognitive abilities in children."
Alternatives: "a distinctive assessment for" or "an exclusive evaluation for".
A gastroenterologist by training, he had a brilliant career as a biomedical researcher developing a unique test for TB used around the world.
Their movement on the island — which they call Rapa Nui, not Easter Island — presents a unique test for a Latin American country: quelling a challenge to its rule in the middle of the South Pacific.
Also, in order to provide a unique test for the diagnosis of aAb-associated NAM, we further developed a multiplex assay (ALBIA-NAM) and determined whether it could discriminate patients with anti-HMGCR and anti-SRP aAbs.
The Titan dunes provide a unique test of models for how dunes form here on Earth, says physicist Bruno Andreotti from the University of Paris 7. Grain size and atmospheric conditions are generally the same across our globe, so "the observations of dunes on other planets provide realizations under different working conditions," he says.
The space station is also a unique test bed for additional research, technology development and operational experience to support our country's space exploration goals.
The MITR is a unique test bed for a wide range of nuclear material and fuel research.
"These edge sites will serve as a unique test bed for developers to hone the pricing, contracting, automation and capacity management techniques they will need as infrastructure becomes even more distributed".
In order to meet this need, a unique test system developed in-house for determining materials properties of very thin materials was used to determine the fatigue response of a high temperature Ni alloy, both with and without prior exposure to elevated temperatures.
The TPD technique, therefore, may provide a unique test-bed for validating or extending theories of effective properties in granular media by yielding detailed mechanical and thermal information not easily measured in experiments.
The recent financial crisis provides a unique testing ground for analyzing causal economic relations.
Natural isolates provide a unique testing ground for understanding the spectrum of biofilm-related phenotypes achieved by S. cerevisiae outside of laboratory strains.
