// 4 expires
    ticker.advance(1, MILLISECONDS);
    assertThat(keySet).containsExactly(6, 8, 0, 1, 2, 5, 7, 9);
    ticker.advance(1, MILLISECONDS);
    assertThat(keySet).containsExactly(6, 8, 0, 1, 2, 5, 7, 9);

    // 6 expires
    ticker.advance(1, MILLISECONDS);
    assertThat(keySet).containsExactly(8, 0, 1, 2, 5, 7, 9);
    ticker.advance(1, MILLISECONDS);

    cache.put(0, 10);
    cache.put(2, 30);

    fakeTicker.advance(999, MILLISECONDS);
    assertThat(cache.getIfPresent(2)).isEqualTo(30);
    fakeTicker.advance(1, MILLISECONDS);
    assertThat(cache.getIfPresent(2)).isEqualTo(30);
    fakeTicker.advance(1000, MILLISECONDS);
    assertThat(cache.getIfPresent(0)).isNull();
  }

  @Test

  public void testAdvance() {
    FakeTicker ticker = new FakeTicker();
    assertEquals(0, ticker.read());
    assertThat(ticker.advance(10)).isSameInstanceAs(ticker);
    assertEquals(10, ticker.read());
    ticker.advance(1, MILLISECONDS);
    assertEquals(1000010L, ticker.read());
    ticker.advance(Duration.ofMillis(1));
    assertEquals(2000010L, ticker.read());
  }

  public void testAutoIncrementStep_returnsSameInstance() {

  public void testAdvance() {
    FakeTicker ticker = new FakeTicker();
    assertEquals(0, ticker.read());
    assertThat(ticker.advance(10)).isSameInstanceAs(ticker);
    assertEquals(10, ticker.read());
    ticker.advance(1, MILLISECONDS);
    assertEquals(1000010L, ticker.read());
    ticker.advance(Duration.ofMillis(1));
    assertEquals(2000010L, ticker.read());
  }

  public void testAutoIncrementStep_returnsSameInstance() {

    ticker.advance(1, MILLISECONDS);
    assertThat(cache.getUnchecked(key)).isSameInstanceAs(one);
    stats = cache.stats();
    assertThat(stats.missCount()).isEqualTo(1);
    assertThat(stats.loadSuccessCount()).isEqualTo(1);
    assertThat(stats.loadExceptionCount()).isEqualTo(0);
    assertThat(stats.hitCount()).isEqualTo(1);

    ticker.advance(1, MILLISECONDS);

		</postConstruct>
		<postConstruct name="addDesignJspFileName">
			<arg>"searchOptions"</arg>
			<arg>"searchOptions.jsp"</arg>
		</postConstruct>
		<postConstruct name="addDesignJspFileName">
			<arg>"advance"</arg>
			<arg>"advance.jsp"</arg>
		</postConstruct>
		<postConstruct name="addDesignJspFileName">
			<arg>"help"</arg>
			<arg>"help.jsp"</arg>
		</postConstruct>
		<postConstruct name="addDesignJspFileName">

Siga os tutoriais do seu provedor de nuvem para implantar aplicações FastAPI com esse provedor. 🤓

## Implantar no seu próprio servidor { #deploy-your-own-server }

    Object four = new Object();
    Object five = new Object();

    map.put(one, two);
    ticker.advance(1);
    map.put(two, three);
    ticker.advance(1);
    map.put(three, four);
    assertThat(listener.isEmpty()).isTrue();
    ticker.advance(1);
    map.put(four, five);
    assertNotified(listener, one, two, RemovalCause.EXPIRED);

    Object four = new Object();
    Object five = new Object();

    map.put(one, two);
    ticker.advance(1);
    map.put(two, three);
    ticker.advance(1);
    map.put(three, four);
    assertThat(listener.isEmpty()).isTrue();
    ticker.advance(1);
    map.put(four, five);
    assertNotified(listener, one, two, RemovalCause.EXPIRED);

Se você tiver dependências com `yield`, o código de saída será executado *depois* do middleware.

Se houver alguma tarefa em segundo plano (abordada na seção [Tarefas em segundo plano](background-tasks.md), que você verá mais adiante), ela será executada *depois* de todo o middleware.

///

## Criar um middleware { #create-a-middleware }

Para criar um middleware, use o decorador `@app.middleware("http")` logo acima de uma função.