Test simulation of an isolated supernova in a homogeneous environment according to Tenorio-Tagle et al. (1990).This test was run in 1D and spherical coordinates at radial resolutions between 100 and 6400 cells with respective increments of a factor of two and with the standard cooling and heating. Top: density slices at different times (increasing from left to right). Middle: evolution of thermal (thin lines) and kinetic (thick lines) energy for the 100 (orange triple dot-dashed lines), 800 (solid black lines), 6400 (red dashed lines) radial cells simulation. Additionally a simulation with 3200 radial cells and enhanced cooling is shown (blue dot-dashed lines, see text for details). The left part of the plot zooms into the first 2000 yr of the evolution. Bottom: maximum compression at about 20 000 yr as a function of resolution. The expected maximum compression at this time is four for a strong adiabatic shock.