return null;
    } else {
      Range<K> range = ranges.get(index);
      return range.contains(key) ? immutableEntry(range, values.get(index)) : null;
    }
  }

  @Override
  public Range<K> span() {
    if (ranges.isEmpty()) {
      throw new NoSuchElementException();
    }
    Range<K> firstRange = ranges.get(0);
    Range<K> lastRange = ranges.get(ranges.size() - 1);

   * same result.
   */
  enum CollectStrategy {
    /** Get one accumulator and accumulate the elements into it sequentially. */
    SEQUENTIAL {
      @Override
      final <T extends @Nullable Object, A extends @Nullable Object, R extends @Nullable Object>
          A result(Collector<T, A, R> collector, Iterable<T> inputs) {
        A accum = collector.supplier().get();
        for (T input : inputs) {

        assertEquals(2, subsequent.size());
        assertEquals(ProjectDependencyGraphStub.B, subsequent.get(0));
        assertEquals(C, subsequent.get(1));

        final List<MavenProject> bDescendants = graph.markAsFinished(B);
        assertEquals(1, bDescendants.size());
        assertEquals(Y, bDescendants.get(0));

        final List<MavenProject> cDescendants = graph.markAsFinished(C);

    }

    /**
     * Get the file path
     * @return the path
     */
    public String getPath() {
        return path;
    }

    /**
     * Get the create GUID
     * @return the create GUID
     */
    public HandleGuid getCreateGuid() {
        return createGuid;
    }

    /**
     * Get the file ID
     * @return copy of the 16-byte file ID

    assertFalse(future.isDone());
    assertFalse(future.isCancelled());
    assertThrows(TimeoutException.class, () -> future.get(0, MILLISECONDS));
    nested.set("foo");
    assertTrue(future.isDone());
    assertFalse(future.isCancelled());
    assertEquals("foo", future.get());
  }

  private static class Foo {}

  private static class FooChild extends Foo {}

from docs_src.handling_errors.tutorial003_py39 import app

client = TestClient(app)


def test_get():
    response = client.get("/unicorns/shinny")
    assert response.status_code == 200, response.text
    assert response.json() == {"unicorn_name": "shinny"}


def test_get_exception():
    response = client.get("/unicorns/yolo")
    assert response.status_code == 418, response.text
    assert response.json() == {

            // Replace
            concreteImplementation.replaceCache();

            // Verify overwrite
            assertEquals(concreteImplementation, cacheMap.get(key));
            assertNotEquals(oldEntry, cacheMap.get(key));
        }
    }

    @Nested
    @DisplayName("Complex Scenarios Tests")
    class ComplexScenariosTests {

        @Test

def test_get_items():
    response = client.get("/items/")
    assert response.status_code == 200, response.text
    assert response.json() == [
        {"name": "Plumbus", "price": 3},
        {"name": "Portal Gun", "price": 9001},
    ]


def test_openapi_schema():
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text

    }


def test_get_items(client: TestClient):
    response = client.get("/items/")
    assert response.status_code == 200, response.text
    assert response.json() == [{"name": "Foo", "price": 42}]


def test_get_users(client: TestClient):
    response = client.get("/users/")
    assert response.status_code == 200, response.text
    assert response.json() == [{"username": "johndoe"}]

      return;
    }
    assertNull(map.get(unmappedKey));
  }

  public void testGetNull() {
    Map<K, V> map = makeEitherMap();
    if (allowsNullKeys) {
      if (allowsNullValues) {
        // TODO: decide what to test here.
      } else {
        assertEquals(map.containsKey(null), map.get(null) != null);
      }
    } else {
      try {
        V unused = map.get(null);