assertTrue(indexUpdater.finishedSessionIdList.contains("session2"));
        assertTrue(indexUpdater.finishedSessionIdList.contains("session3"));
    }

    // Test run method with null DataService
    @Test
    public void test_run_nullDataService() {
        indexUpdater.dataService = null;
        try {
            indexUpdater.run();

     * does not require the class (or package) to be loaded.
     *
     * <p>But note that this method may behave differently for a class in the default package: For
     * such classes, this method always returns an empty string. But under some version of Java,
     * {@code class.getPackage().getName()} produces a {@code NullPointerException} because {@code

            throw new IORuntimeException(e);
        }
    }

    /**
     * Reads text from the given {@link Reader}.
     * <p>
     * The {@link Reader} is not closed by this method.
     * </p>
     *
     * @param reader
     *            the character input stream to read from (must not be {@literal null})
     * @return the text read from the reader
     */

你可以把 `.openapi_schema` 属性当作“缓存”，用来存储已生成的架构。

这样一来，用户每次打开 API 文档时，应用就不必重新生成架构。

它只会生成一次，后续请求都会使用同一份缓存的架构。

{* ../../docs_src/extending_openapi/tutorial001_py310.py hl[13:14,25:26] *}

### 覆盖方法 { #override-the-method }

现在你可以用你的新函数替换 `.openapi()` 方法。

{* ../../docs_src/extending_openapi/tutorial001_py310.py hl[29] *}

### 验证 { #check-it }

  private static final int GREATEST = Integer.MAX_VALUE;

  private static final int[] VALUES = {LEAST, (int) -1, (int) 0, (int) 1, GREATEST};

  // We need to test that our method behaves like the JDK method.
  @SuppressWarnings("InlineMeInliner")
  public void testHashCode() {
    for (int value : VALUES) {
      assertThat(Ints.hashCode(value)).isEqualTo(Integer.hashCode(value));
    }
  }

これにより、クライアントコードも正しく整理・グルーピングされます:

<img src="/img/tutorial/generate-clients/image06.png">

この例では次のようになります:

* `ItemsService`
* `UsersService`

### クライアントのメソッド名 { #client-method-names }

現状では、生成されるメソッド名（`createItemItemsPost` など）はあまりきれいではありません:

```TypeScript
ItemsService.createItemItemsPost({name: "Plumbus", price: 5})
```

import okhttp3.logging.LoggingEventListener

class Main : CliktCommand(name = NAME) {
  override val printHelpOnEmptyArgs = true

  override fun help(context: Context): String = "A curl for the next-generation web."

  val method: String? by option("-X", "--request").help("Specify request command to use")

  val data: String? by option("-d", "--data").help("HTTP POST data")

    assertThrows(IOException.class, reader::reset);
  }

  /**
   * Creates a CharSequenceReader wrapping the given CharSequence and tests that the reader produces
   * the same sequence when read using each type of read method it provides.
   */
  private static void assertReadsCorrectly(CharSequence charSequence) throws IOException {
    String expected = charSequence.toString();

    // read char by char

   * supports.
   *
   * <p>The returned multiset will throw an {@link IllegalArgumentException} on attempts to add
   * elements outside its range.
   *
   * <p>This method is equivalent to {@code tailMultiset(lowerBound,
   * lowerBoundType).headMultiset(upperBound, upperBoundType)}.
   */
  SortedMultiset<E> subMultiset(
      @ParametricNullness E lowerBound,

   * supports.
   *
   * <p>The returned multiset will throw an {@link IllegalArgumentException} on attempts to add
   * elements outside its range.
   *
   * <p>This method is equivalent to {@code tailMultiset(lowerBound,
   * lowerBoundType).headMultiset(upperBound, upperBoundType)}.
   */
  SortedMultiset<E> subMultiset(
      @ParametricNullness E lowerBound,