import com.google.common.annotations.J2ktIncompatible;
import com.google.common.testing.NullPointerTester;
import com.google.common.testing.SerializableTester;
import junit.framework.TestCase;

/**
 * Unit test for {@link CaseFormat}.
 *
 * @author Mike Bostock
 */
@GwtCompatible(emulated = true)
public class CaseFormatTest extends TestCase {

  public void testIdentity() {
    for (CaseFormat from : CaseFormat.values()) {

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.logging.Level;
import java.util.logging.Logger;
import junit.framework.TestCase;

/** Tests for {@link ListenerCallQueue}. */
public class ListenerCallQueueTest extends TestCase {

  private static final ListenerCallQueue.Event<Object> THROWING_EVENT =
      new ListenerCallQueue.Event<Object>() {
        @Override

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;

/**
 * Tests {@link LegacyRepositorySystem}.
 *
 */
@PlexusTest
@Deprecated
class LegacyRepositorySystemTest {
    @Inject
    private LegacyRepositorySystem repositorySystem;

    @Inject

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;

/**
 * Collection tests on wrappers from {@link Multisets}.
 *
 * @author Jared Levy
 */
@GwtIncompatible // suite // TODO(cpovirk): set up collect/gwt/suites version
public class MultisetsCollectionTest extends TestCase {
  public static Test suite() {

```

위 예시에서는 3가지 쿼리 매개변수가 있습니다:

* `needy`, 필수적인 `str`.
* `skip`, 기본값이 `0`인 `int`.
* `limit`, 선택적인 `int`.

/// tip | "팁"

[경로 매개변수](path-params.md#_8){.internal-link target=_blank}와 마찬가지로 `Enum`을 사용할 수 있습니다.

import java.net.URLClassLoader;
import java.util.Arrays;
import java.util.Collections;
import junit.framework.TestCase;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Unit test for {@link FinalizableReferenceQueue}.
 *
 * @author Bob Lee
 */
// - depends on details of GC and classloading
// - .class files aren't available
// - possibly no real concept of separate ClassLoaders?
@AndroidIncompatible

import java.util.Random;
import java.util.RandomAccess;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** Tests for repeated node and edge addition and removal in a {@link Network}. */
@RunWith(JUnit4.class)

public final class NetworkMutationTest {
  private static final int NUM_TRIALS = 5;
  private static final int NUM_NODES = 20;
  private static final int NUM_EDGES = 100;

### 非同期コードの他の形式

`async` と `await` を使用するスタイルは、この言語では比較的新しいものです。

非同期コードの操作がはるかに簡単になります。

等価な (またはほとんど同一の) 構文が、最近のバージョンのJavaScript (ブラウザおよびNodeJS) にも最近組み込まれました。

しかし、その前は、非同期コードの処理はかなり複雑で難解でした。

```Python hl_lines="14"
{!../../docs_src/handling_errors/tutorial002.py!}
```

## Install custom exception handlers

You can add custom exception handlers with <a href="https://www.starlette.io/exceptions/" class="external-link" target="_blank">the same exception utilities from Starlette</a>.

Let's say you have a custom exception `UnicornException` that you (or a library you use) might `raise`.

    /**
     * Instantiate a random access file from a {@link SmbFile}
     * 
     * @param file
     * @param mode
     * @throws SmbException
     */
    public SmbRandomAccessFile ( SmbFile file, String mode ) throws SmbException {
        this(file, mode, SmbConstants.DEFAULT_SHARING, false);
    }


    /**
     * Instantiate a random access file from a {@link SmbFile}
     * 
     * @param file