memory size in test_r2d2_agent.py

[leonard-q]

Describe the bug A clear and concise description of what the bug is.

agent.memory.size is not defined correctly

To Reproduce Steps to reproduce the behavior:

run pytest after uncomment agent.memory.size

Expected behavior A clear and concise description of what you expected to happen.

Screenshots If applicable, add screenshots to help explain your problem.

Development Env. (OS, version, libraries): Please describe current development environment Linux Ubuntu

Additional context Add any other context about the problem here.

[leonard-q]

It is related to #109 and it is resolved