A fiber rack assembly is provided. The assembly includes at least one patch panel having adapters configured to couple a first plurality of fibers to a second plurality of fibers and a test system for measuring the optical power lever of the fibers. The test system may include a base and a sensor. The base may define a plurality of test sites. Each test site is configured to support a portion of a fiber. The sensor is movable to one or more test sites and, at each test site, is configured to measure a macro-bending loss at the portion of the fiber supported at the test site as an indication of an optical power level of the fiber. The test system may also have interface panel that includes user inputs and a display.