@Test
public void testSize() {

    CMLStack stack = new CMLStack();
    org.hamcrest.MatcherAssert.assertThat(stack.size(), is(0));
    stack.push("first");
    org.hamcrest.MatcherAssert.assertThat(stack.size(), is(1));
    stack.push("second");
    org.hamcrest.MatcherAssert.assertThat(stack.size(), is(2));
    stack.push("third");
    org.hamcrest.MatcherAssert.assertThat(stack.size(), is(3));
}