@Test
    public void testReset() {
        LinkedList<Mass> originalMasses = graph.masses;
        LinkedList<Spring> originalSprings = graph.springs;

        graph.reset();

        assertFalse(graph.masses == originalMasses);
        assertFalse(graph.springs == originalSprings);
        assertTrue(graph.masses.isEmpty());
        assertTrue(graph.springs.isEmpty());
    }