import static org.mockito.Mockito.when;

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.mockito.Mock;

/**
 * Test class for Credentials interface functionality
 */
@DisplayName("Credentials Interface Tests")
class CredentialsTest extends BaseTest {

    @Mock
    private Credentials mockCredentials;

    @Test
    @DisplayName("Should define interface methods")

    }
    handler.windowUpdate(streamId, increment)
  }

  @Throws(IOException::class)
  override fun close() {
    source.close()
  }

  /**
   * Decompression of the header block occurs above the framing layer. This class lazily reads
   * continuation frames as they are needed by [Hpack.Reader.readHeaders].
   */
  internal class ContinuationSource(
    private val source: BufferedSource,
  ) : Source {

    Integer n = null;
    assertThrows(NullPointerException.class, () -> ImmutableSortedMap.of(n, 1));

    assertThrows(NullPointerException.class, () -> ImmutableSortedMap.of("one", 1, null, 2));
  }

  public void testOfNullValue() {
    assertThrows(NullPointerException.class, () -> ImmutableSortedMap.of("one", null));

    assertThrows(NullPointerException.class, () -> ImmutableSortedMap.of("one", 1, "two", null));
  }

            DfsReferralDataInternal unwrapped = referralData.unwrap(DfsReferralDataInternal.class);
            assertSame(referralData, unwrapped);
        }

        @Test
        @DisplayName("Should unwrap to DfsReferralDataImpl class")
        void testUnwrapToDfsReferralDataImpl() {
            DfsReferralDataImpl unwrapped = referralData.unwrap(DfsReferralDataImpl.class);
            assertSame(referralData, unwrapped);
        }

        @Test

import java.util.Map.Entry;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

/**
 * A container class for the five sample elements we need for testing.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible
@NullMarked
public class SampleElements<E extends @Nullable Object> implements Iterable<E> {
  // TODO: rename e3, e4 => missing1, missing2
  private final E e0;
  private final E e1;

    private static final Logger logger = Logger.getLogger(FileFactory.class.getName());

    private final ThreadLocal<File> fileThreadLocal = new ThreadLocal<>();

    File createFile() throws IOException {
      File file = File.createTempFile("SinkSourceFile", "txt");
      fileThreadLocal.set(file);
      return file;
    }

    File getFile() {
      return fileThreadLocal.get();
    }

### Bước 1: import `FastAPI`

{* ../../docs_src/first_steps/tutorial001.py hl[1] *}

`FastAPI` là một Python class cung cấp tất cả chức năng cho API của bạn.

/// note | Chi tiết kĩ thuật

`FastAPI` là một class kế thừa trực tiếp `Starlette`.

Bạn cũng có thể sử dụng tất cả <a href="https://www.starlette.io/" class="external-link" target="_blank">Starlette</a> chức năng với `FastAPI`.

///

    ImmutableLongArray iia = ImmutableLongArray.of(0, 1, 3);
    assertThrows(IndexOutOfBoundsException.class, () -> iia.get(-1));
    assertThrows(IndexOutOfBoundsException.class, () -> iia.get(3));

    ImmutableLongArray sub = iia.subArray(1, 2);
    assertThrows(IndexOutOfBoundsException.class, () -> sub.get(-1));
  }

  public void testIndexOf() {

//// tab | Linux, macOS, Windows Bash

<div class="termy">

```console
// Sie könnten eine Umgebungsvariable MY_NAME erstellen mittels
$ export MY_NAME="Wade Wilson"

// Dann könnten Sie diese mit anderen Programmen verwenden, etwa
$ echo "Hello $MY_NAME"

Hello Wade Wilson
```

</div>

////

//// tab | Windows PowerShell

<div class="termy">

```console

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

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

/**
 * Tests for the SmbComBlankResponse class.
 */
class SmbComBlankResponseTest {

    private SmbComBlankResponse response;
    private byte[] buffer;

    @BeforeEach
    void setUp() {
        response = new SmbComBlankResponse();