// Test with binary data
        final byte[] binaryData = new byte[] { 0, 1, 2, 3, 127, (byte) 128, (byte) 255 };
        final String binaryEncoded = Base64Util.encode(binaryData);
        final byte[] binaryDecoded = Base64Util.decode(binaryEncoded);
        assertEquals("Binary data length should match", binaryData.length, binaryDecoded.length);
        for (int i = 0; i < binaryData.length; i++) {

    val length = 5
    val payload: ByteString = (binaryData(length))
    serverWriter.writeMessageFrame(OPCODE_TEXT, payload)
    assertData("8105")
    assertData(payload)
  }

  @Test fun serverLargeBufferedPayloadWrittenAsOneFrame() {
    val length = 12345
    val payload: ByteString = (binaryData(length))
    serverWriter.writeMessageFrame(OPCODE_TEXT, payload)
    assertData("817e")

        // Test with binary content
        byte[] binaryData = new byte[] { 0x00, 0x01, 0x02, (byte) 0xFF, (byte) 0xFE, (byte) 0xFD };

        ResponseData responseData = new ResponseData() {
            @Override
            public InputStream getResponseBody() {
                return new ByteArrayInputStream(binaryData);
            }

            @Override
            public String getUrl() {

      serverReader.processNextFrame()
    }
  }

  @Test fun clientSimpleBinary() {
    val bytes = binaryData(256)
    data.write("827E0100".decodeHex()).write(bytes)
    clientReader.processNextFrame()
    callback.assertBinaryMessage(bytes)
  }

  @Test fun clientTwoFrameBinary() {
    val bytes = binaryData(200)
    data.write("0264".decodeHex()).write(bytes, 0, 100)

        |  "active": true
        |}
        |'
        """.trimMargin(),
      )
  }

  @Test
  fun curlPostWithBinaryBody() {
    val binaryData = "00010203".decodeHex()
    val body = binaryData.toRequestBody("application/octet-stream".toMediaType())

    val request =
      Request
        .Builder()
        .url("https://api.example.com/upload")
        .post(body)

netes/pull/60301), [@tnozicka](https://github.com/tnozicka))

* ConfigMap objects now support binary data via a new `binaryData` field. When using `kubectl create configmap --from-file`, files containing non-UTF8 data will be placed in this new field in order to preserve the non-UTF8 data. Note that kubectl's `--append-hash` feature doesn't take `binaryData` into account. Use of this feature requires 1.10+ apiserver and kubelets. ([#57938](https://github.com/kubernetes/kubernetes/pull/57938),...

- Added BinaryData description to `kubectl describe` command. ([#100568](https://github.com/kubernetes/kubernetes/pull/100568), [@lauchokyip](https://github.com/lauchokyip))

* kubectl get did not correctly count the number of binaryData keys when listing config maps. ([#80827](https://github.com/kubernetes/kubernetes/pull/80827), [@smarterclayton](https://github.com/smarterclayton))