Tower of Hanoi test.

tests/tower_of_hanoi.aer

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+class Hanoi {
+
+	public void towerOfHanoi(int $diskCount, int $fromPole, int $toPole, int $viaPole) {
+		if($diskCount == 1) {
+			printf('Move disk from pole ' + $fromPole + ' to pole ' + $toPole + "\n");
+		} else {
+			$this->towerOfHanoi($diskCount - 1, $fromPole, $viaPole, $toPole);
+			$this->towerOfHanoi(1, $fromPole, $toPole, $viaPole);
+			$this->towerOfHanoi($diskCount - 1, $viaPole, $toPole, $fromPole);
+		}
+	}
+
+}
+
+class Program {
+
+	public void main() {
+		object $hanoi = new Hanoi();
+		$hanoi->towerOfHanoi(4, 1, 2, 3);
+	}
+
+}

tests/tower_of_hanoi.exp

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+Move disk from pole 1 to pole 3
+Move disk from pole 1 to pole 2
+Move disk from pole 3 to pole 2
+Move disk from pole 1 to pole 3
+Move disk from pole 2 to pole 1
+Move disk from pole 2 to pole 3
+Move disk from pole 1 to pole 3
+Move disk from pole 1 to pole 2
+Move disk from pole 3 to pole 2
+Move disk from pole 3 to pole 1
+Move disk from pole 2 to pole 1
+Move disk from pole 3 to pole 2
+Move disk from pole 1 to pole 3
+Move disk from pole 1 to pole 2
+Move disk from pole 3 to pole 2