Added some tests for VisualizationFrame class
Added some tests for VisualizationFrame class

Shekharrajak/pydy,jcrist/pydy,skidzo/pydy,oliverlee/pydy,oliverlee/pydy,oliverlee/pydy,Shekharrajak/pydy,skidzo/pydy,jcrist/pydy,Shekharrajak/pydy,jcrist/pydy,skidzo/pydy,jcrist/pydy,jcrist/pydy,jcrist/pydy,skidzo/pydy,Shekharrajak/pydy,jcrist/pydy