Added some tests for SearchNode
Added some tests for SearchNode

emoron/simpleai,iamaziz/simpleai,emoron/simpleai,iamaziz/simpleai,simpleai-team/simpleai,printedheart/simpleai,matuu/simpleai,iamaziz/simpleai,simpleai-team/simpleai,matuu/simpleai,printedheart/simpleai,printedheart/simpleai,emoron/simpleai,simpleai-team/simpleai,matuu/simpleai