Bring a medium saucepan of lightly salted water to a boil. Add macaroni, and cook 8 to 10 minutes, or until al dente. Rinse under cold water to chill, and drain.
Meanwhile, combine the chickpeas, tomatoes, onion, garlic, feta cheese, olives, salt, pepper, olive oil, and lemon juice in a large bowl. Set aside to marinate while the pasta is cooking.
Mix macaroni with chickpea mixture. Cover, and refrigerate for at least 30 minutes to blend flavors.
