@Test
public void testRun() {

    assertEquals(1l, scriptRunner.run(ScriptFragment.of("sequence.number")));
    assertEquals(2l, scriptRunner.run(ScriptFragment.of("sequence.number")));
    assertEquals(3l, scriptRunner.run(ScriptFragment.of("sequence.number")));
    assertEquals(4l, scriptRunner.run(ScriptFragment.of("sequence.number")));
    assertEquals(5l, scriptRunner.run(ScriptFragment.of("sequence.number")));
}