body_schema = get_schema_from_model_field(
        field=body_field,
        schema_generator=schema_generator,
        model_name_map=model_name_map,
        field_mapping=field_mapping,
        separate_input_output_schemas=separate_input_output_schemas,
    )
    field_info = cast(Body, body_field.field_info)
    request_media_type = field_info.media_type
    required = body_field.required

		}
		if testCase.shouldPass && !bytes.Equal(testCase.lifecycleResponse, rec.Body.Bytes()) {
			t.Errorf("Test %d: %s: Expected the response to be `%s`, but instead found `%s`", i+1, instanceType, string(testCase.lifecycleResponse), rec.Body.String())
		}
		errorResponse := APIErrorResponse{}
		err = xml.Unmarshal(rec.Body.Bytes(), &errorResponse)
		if err != nil && !testCase.shouldPass {

    assertThat(body.boundary).isEqualTo("123")
    assertThat(body.type).isEqualTo(MultipartBody.MIXED)
    assertThat(body.contentType().toString())
      .isEqualTo("multipart/mixed; boundary=123")
    assertThat(body.parts.size).isEqualTo(1)
    assertThat(body.contentLength()).isEqualTo(33L)
    val buffer = Buffer()
    body.writeTo(buffer)
    assertThat(body.contentLength()).isEqualTo(buffer.size)

    assertThat(body.contentLength()).isEqualTo(3)
    assertThat(bodyToHex(body)).isEqualTo("616263")
    assertThat(bodyToHex(body), "Retransmit body").isEqualTo("616263")
  }

  @Test
  fun byteArrayRange() {
    val contentType = "text/plain".toMediaType()
    val body: RequestBody = ".abcd".toByteArray().toRequestBody(contentType, 1, 3)
    assertThat(body.contentType()).isEqualTo(contentType)

class ResponseBodyJvmTest {
  @Test
  fun stringEmpty() {
    val body = body("")
    assertThat(body.string()).isEqualTo("")
  }

  @Test
  fun stringLooksLikeBomButTooShort() {
    val body = body("000048")
    assertThat(body.string()).isEqualTo("\u0000\u0000H")
  }

  @Test
  fun stringDefaultsToUtf8() {
    val body = body("68656c6c6f")
    assertThat(body.string()).isEqualTo("hello")
  }

  @Test

 * closes its response body. If you invoke [Call.execute] or implement [Callback.onResponse] you
 * must close this body by calling any of the following methods:
 *
 * * `Response.close()`
 * * `Response.body().close()`
 * * `Response.body().source().close()`
 * * `Response.body().charStream().close()`
 * * `Response.body().byteStream().close()`
 * * `Response.body().bytes()`
 * * `Response.body().string()`
 *

Download a file, print its headers, and print its response body as a string.

The `string()` method on response body is convenient and efficient for small documents. But if the response body is large (greater than 1 MiB), avoid `string()` because it will load the entire document into memory. In that case, prefer to process the body as a stream.

=== ":material-language-kotlin: Kotlin"
    ```kotlin

    assertThat(request.body).isNull()
    assertThat(request.tags).isEmpty()
  }

  @Test
  fun constructorNoMethod() {
    val url = "https://example.com/".toHttpUrl()
    val body = "hello".toRequestBody()
    val headers = headersOf("User-Agent", "RequestTest")
    val request =
      Request(
        url = url,
        headers = headers,
        body = body,
      )

    open fun head(): Builder = commonHead()

    open fun post(body: RequestBody): Builder = commonPost(body)

    @JvmOverloads
    open fun delete(body: RequestBody? = commonEmptyRequestBody): Builder = commonDelete(body)

    open fun put(body: RequestBody): Builder = commonPut(body)

    open fun patch(body: RequestBody): Builder = commonPatch(body)

    open fun method(
      method: String,

        validateApi(body, messages -> {});

        if (StringUtil.isBlank(body.q)) {
            // query matches on all documents.
            body.q = Constants.MATCHES_ALL_QUERY;
        }

        final SearchRenderData renderData = new SearchRenderData();
        body.initialize();
        try {
            searchHelper.search(body, renderData, getUserBean());