import org.junit.rules.TemporaryFolder;

/**
 * @author wyukawa
 *
 */
public class PropertiesUtilTest {

    URL url = ResourceUtil.getResource(getClass().getName().replace('.', '/') + ".txt");

    File inputFile = URLUtil.toFile(url);

    /**
     *
     */
    @Rule
    public TemporaryFolder tempFolder = new TemporaryFolder();

    /**
     * @see org.junit.rules.ExpectedException

			expected: ErrSignatureDoesNotMatch,
		},
		// (6) Should not error signature matches with extra query params.
		{
			queryParams: map[string]string{
				"response-content-disposition": "attachment; filename=\"4K%2d4M.txt\"",
			},
			expected: ErrNone,
		},
		// (7) Should not error signature matches with no special query params.
		{
			queryParams: map[string]string{},
			expected:    ErrNone,
		},
	}

        final File nonExistentParent = new File(tempDir, "non_existent_" + System.currentTimeMillis());
        final File outputFile = new File(nonExistentParent, "output.txt");

        try {
            assertFalse(nonExistentParent.exists());
            assertFalse(outputFile.exists());

            generator.setCommandList(Collections.singletonList("echo test"));

        .Builder("boundary")
        .setType(MultipartBody.PARALLEL)
        .addPart("Quick".toRequestBody("text/plain".toMediaType()))
        .addFormDataPart("color", "Brown")
        .addFormDataPart("animal", "fox.txt", "Fox".toRequestBody())
        .build()

    val bodyContent = Buffer()
    body.writeTo(bodyContent)

    val reader = MultipartReader(bodyContent, "boundary")

    val quickPart = reader.nextPart()!!

  public static final MediaType PLAIN_TEXT_UTF_8 = createConstantUtf8(TEXT_TYPE, "plain");

  /**
   * <a href="http://www.rfc-editor.org/rfc/rfc4329.txt">RFC 4329</a> declares {@link
   * #JAVASCRIPT_UTF_8 application/javascript} to be the correct media type for JavaScript, but this
   * may be necessary in certain situations for compatibility.
   */

                    .hex(),
                )
              }
            },
          ),
        ).build()

    val request = Request.Builder().url("https://facebook.com/robots.txt").build()

    client.newCall(request).execute().use {
      assertThat(it.protocol).isEqualTo(Protocol.HTTP_2)
      assertThat(it.handshake!!.tlsVersion).isEqualTo(TlsVersion.TLS_1_3)
    }

```Python
with open("./somefile.txt") as f:
    contents = f.read()
    print(contents)
```

その後の`open("./somefile.txt")`は「コンテキストマネージャ」と呼ばれるオブジェクトを作成します。

`with`ブロックが終了すると、例外があったとしてもファイルを確かに閉じます。

`yield`を依存関係を作成すると、**FastAPI** は内部的にそれをコンテキストマネージャに変換し、他の関連ツールと組み合わせます。

      .eventListener(new PrintingEventListener())
      .build();

  public void run() throws Exception {
    Request request = new Request.Builder()
        .url("https://publicobject.com/helloworld.txt")
        .build();

    System.out.println("REQUEST 1 (new connection)");
    try (Response response = client.newCall(request).execute()) {
      // Consume and discard the response body.

    protected File getLocalRepositoryPath() throws FileNotFoundException, URISyntaxException {
        File markerFile = getFileForClasspathResource("local-repo/marker.txt");

        return markerFile.getAbsoluteFile().getParentFile();
    }

    protected static File getFileForClasspathResource(String resource)
            throws FileNotFoundException, URISyntaxException {

    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();
    }

    // acts as an override in subclasses that implement SourceSinkFactory