public class CounterTest {

  private Counter counter = new Counter("255");
  private Element document = counter.toHtmlDocument();

  @Test
  public void containsLinks() throws Exception {
    Element inc = document.findLinkByLabel("inc");
    assertEquals("Inc has bad url", "?value=256", inc.getAttribute("href"));

    Element dec = document.findLinkByLabel("dec");
    assertEquals("Dec has bad url", "?value=254", dec.getAttribute("href"));
  }

  @Test
  public void containsDisplay() throws Exception {
    Element display = document.findElementById("display");
    assertEquals("Display shows wrong value", "0xff", display.contentsAsText());
  }

  @Test
  public void defaultValueIsZero() throws Exception {
    document = new Counter(null).toHtmlDocument();
    assertEquals("0x0", document.findElementById("display").contentsAsText());
  }
}
示例#2
0
  @Test
  public void countDownTest() {
    EventSource<Void> src1 = new EventSource<Void>();
    EventSource<Void> src2 = new EventSource<Void>();
    EventSource<Void> reset = new EventSource<Void>();

    BiFunction<Integer, Void, Tuple2<Integer, Optional<String>>> countdown =
        (s, i) -> s == 1 ? t(3, Optional.of("COUNTDOWN REACHED")) : t(s - 1, Optional.empty());

    EventStream<String> countdowns =
        StateMachine.init(3)
            .on(src1)
            .transmit(countdown)
            .on(src2)
            .transmit(countdown)
            .on(reset)
            .transition((s, i) -> 3)
            .toEventStream();

    Counter counter = new Counter();
    Subscription sub = countdowns.hook(x -> counter.inc()).pin();

    src1.push(null);
    src2.push(null);
    assertEquals(0, counter.get());

    src1.push(null);
    assertEquals(1, counter.getAndReset());

    src2.push(null);
    src2.push(null);
    reset.push(null);
    assertEquals(0, counter.get());
    src2.push(null);
    assertEquals(0, counter.get());
    src1.push(null);
    assertEquals(0, counter.get());
    src2.push(null);
    assertEquals(1, counter.getAndReset());

    sub.unsubscribe();
    src1.push(null);
    src1.push(null);
    src1.push(null);
    src1.push(null);
    src1.push(null);
    src1.push(null);
    assertEquals(0, counter.get());
  }
 public String doStuff() {
   counter.count().set(counter.count().get() + 1);
   return null;
 }