Oookaaay. *Takes a deep breath* 
 First of all, this book was really tense. (And I read most of it during the daytime, not the nighttime where everything's all quiet and the lights are dim and you jump at every noise.) And this book doesn't waste words - it manages to have a lot of action while keeping its tenseness. Although the romance didn't really work. 
 I really liked the worldbuilding - especially the Five Lakes Colony. I liked how they all worked together and were so genuine, especially in the midst of corruption. 
 The book did resemble the Hunger Games. The beginning of both books begin almost in the same manner, and they're somewhat similar to each other. Unlike the Hunger Games, in the Testing, you see the person, instead of just killer. (view spoiler)[The MC talks, eats, hangs out around the person, yet he ends up betraying them. (hide spoiler)] It makes you end up liking and hating the character at the same time.