  In this paper we present some test results of our newly developed Multi-Phase
Chemo-Dynamical Smoothed Particle Hydrodynamics (MP- CD-SPH) code for galaxy
evolution. At first, we present a test of the ``pure'' hydro SPH part of the
code. Then we describe and test the multi-phase description of the gaseous
components of the interstellar matter. In this second part we also compare our
condensation and evaporation description with the results of a previous 2d
multi-phase hydrodynamic mesh code.
