Several changes made:

* Do not overload entry point
 * Automatically call Program::__construct()
 * Automatically call Program::main();
 * Fix all tests

tests/printf_test.aer

@@ -1,11 +1,11 @@
-class Main {
+class Program {
 	private $s = 'monkey';
 	private $t = 'many monkeys';
 	private $n =  43951789;
 	private $u = -43951789;
 	private $c = 65;
 
-	public function __construct() {
+	public function main() {
 		$this->testMonkey();
 		$this->testNumbers();
 	}
@@ -36,5 +36,3 @@ class Main {
 	}
 
 }
-
-new Main();