Adds a simple collector test.
Adds a simple collector test.

manuel-freire/rage-analytics-backend,e-ucm/rage-analytics-backend,RotaruDan/lrs,RotaruDan/lrs,manuel-freire/rage-analytics-backend,RotaruDan/lrs,manuel-freire/rage-analytics-backend,e-ucm/rage-analytics-backend,e-ucm/rage-analytics-backend