}
    }

    @Test
    @DisplayName("readn should handle partial reads")
    void testReadnPartial() throws IOException {
        byte[] buffer = new byte[10];
        byte[] data = { 1, 2, 3 };
        ByteArrayInputStream bais = new ByteArrayInputStream(data);

        int bytesRead = SessionServicePacket.readn(bais, buffer, 0, 5);

        assertEquals(3, bytesRead); // Only 3 bytes available
    }

    bimap.put("one", 1);
    BiMap<String, Integer> sync = Maps.synchronizedBiMap(bimap);
    bimap.put("two", 2);
    sync.put("three", 3);
    assertEquals(ImmutableSet.of(1, 2, 3), bimap.inverse().keySet());
    assertEquals(ImmutableSet.of(1, 2, 3), sync.inverse().keySet());
  }

  private static final Function<Integer, Double> SQRT_FUNCTION = in -> Math.sqrt(in);

  public void testTransformValues() {

    }

    /**
     * @throws Exception
     */
    @Test
    public void testToHex() throws Exception {
        assertEquals("010203", StringUtil.toHex(new byte[] { 1, 2, 3 }));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testToHex2() throws Exception {
        assertEquals("0001", StringUtil.toHex(1));
    }

    /**

        void testMinimumBufferSize() {
            // Given
            byte[] minBuffer = new byte[EXPECTED_SIZE];
            SrvCopychunk chunk = new SrvCopychunk(1, 2, 3);

            // When
            int bytesWritten = chunk.encode(minBuffer, 0);

            // Then
            assertEquals(EXPECTED_SIZE, bytesWritten);

    void gettersAndAcquire() throws Exception {
        // Arrange
        stubAcquireReturnsSelf();
        String wildcard = "*.*";
        int attrs = 123;
        FileEntry initial = entry("first");
        List<FileEntry[]> pages = List.of(new FileEntry[][] { new FileEntry[] {} });

        // Act

    SetMultimap<String, Integer> multimap = create();
    multimap.putAll("bar", asList(3, 1, 2));
    multimap.putAll("foo", asList(2, 3, 1, -1, 4));
    assertThat(multimap.toString()).isEqualTo("{bar=[1, 2, 3], foo=[-1, 1, 2, 3, 4]}");
  }

  public void testOrderedGet() {
    TreeMultimap<String, Integer> multimap = createPopulate();
    assertThat(multimap.get("foo")).containsExactly(1, 3, 7).inOrder();

      parameters:
        - name: seed
          in: query
          description: Random seed to return popular words
          required: false
          schema:
            type: string
            example: 123
        - name: label
          in: query
          description: Filtered label name
          required: false
          style: form
          explode: true
          schema:
            type: array

            // Act
            int decodedSize = context.decode(buffer, 0, buffer.length);

            // Assert
            assertEquals(8, decodedSize);
            assertArrayEquals(new int[] { 1, 2, 3 }, context.getCiphers());
        }

        @Test
        @DisplayName("Should handle empty cipher array in decode")
        void testDecodeEmptyCipherArray() throws SMBProtocolDecodingException {

## `yield` を使った `StreamingResponse` { #a-streamingresponse-with-yield }

path operation 関数で `response_class=StreamingResponse` を宣言すると、`yield` を使ってデータをチャンクごとに順次送信できます。

{* ../../docs_src/stream_data/tutorial001_py310.py ln[1:23] hl[20,23] *}

FastAPI は各データチャンクをそのまま `StreamingResponse` に渡し、JSON などに変換しようとはしません。

### 非 async な path operation 関数 { #non-async-path-operation-functions }

`async` なしの通常の `def` 関数でも同様に `yield` を使えます。

 * Stopwatch stopwatch = Stopwatch.createStarted();
 * doSomething();
 * stopwatch.stop(); // optional
 *
 * Duration duration = stopwatch.elapsed();
 *
 * log.info("time: " + stopwatch); // formatted string like "12.3 ms"
 * }
 *
 * <p>The state-changing methods are not idempotent; it is an error to start or stop a stopwatch
 * that is already in the desired state.
 *