Several non-fiducial cosmological tests are discussed allowing various models to be conclusively differentiated from one another. The four models tested include ΛCDM, the Friedmann-Lemaitre metric and a recently proposed steady state with and without local expansion. The cosmological tests range from redshift versus distance modulus to the angular size and time dependence of distant objects. Recent observations allow strict constraints on both the size and evolution of faint blue galaxies up to 23B. The solution to the faint blue galaxy problem is further discussed relative to size versus absolute magnitude, number densities and observations of minimal evolution. Models with expanding metrics are ruled out due to incorrect predictions of angular diameter distance and time-dependence. Observations instead depict a steady state universe with asymptotically flat gravitational potential and embedded bulk flows.