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

import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.charset.StandardCharsets;

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

import jcifs.RuntimeCIFSException;
import jcifs.internal.smb1.trans2.Trans2GetDfsReferralResponse;

/**

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

import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.nio.charset.StandardCharsets;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;

        // This is a placeholder - real implementation should use proper KDF
        byte[] derived = new byte[length];

        // Combine inputs
        byte[] labelBytes = label.getBytes(java.nio.charset.StandardCharsets.UTF_8);
        byte[] input = new byte[baseKey.length + labelBytes.length + (context != null ? context.length : 0)];

        int pos = 0;
        System.arraycopy(baseKey, 0, input, pos, baseKey.length);

import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Singleton;

import java.io.File;
import java.io.IOException;
import java.lang.reflect.Method;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.nio.file.StandardCopyOption;
import java.nio.file.StandardOpenOption;
import java.security.NoSuchAlgorithmException;

* `status_code` - `int` のHTTPステータスコード
* `headers` - 文字列の `dict`
* `media_type` - メディアタイプを示す `str`。例: `"text/html"`

FastAPI（実際にはStarlette）は自動的に Content-Length ヘッダーを含めます。また、`media_type` に基づいた Content-Type ヘッダーを含め、テキストタイプには charset を追加します。

{* ../../docs_src/response_directly/tutorial002_py310.py hl[1,18] *}

### `HTMLResponse` { #htmlresponse }

上で読んだように、テキストやバイト列を受け取り、HTMLレスポンスを返します。

### `PlainTextResponse` { #plaintextresponse }

extend({active:0,lastModified:{},etag:{},ajaxSettings:{url:Et.href,type:"GET",isLocal:/^(?:about|app|app-storage|.+-extension|file|res|widget):$/.test(Et.protocol),global:!0,processData:!0,async:!0,contentType:"application/x-www-form-urlencoded; charset=UTF-8",accepts:{"*":zt,text:"text/plain",html:"text/html",xml:"application/xml, text/xml",json:"application/json, text/javascript"},contents:{xml:/\bxml\b/,html:/\bhtml/,json:/\bjson\b/},responseFields:{xml:"responseXML",text:"responseText",json:...

extend({active:0,lastModified:{},etag:{},ajaxSettings:{url:Et.href,type:"GET",isLocal:/^(?:about|app|app-storage|.+-extension|file|res|widget):$/.test(Et.protocol),global:!0,processData:!0,async:!0,contentType:"application/x-www-form-urlencoded; charset=UTF-8",accepts:{"*":zt,text:"text/plain",html:"text/html",xml:"application/xml, text/xml",json:"application/json, text/javascript"},contents:{xml:/\bxml\b/,html:/\bhtml/,json:/\bjson\b/},responseFields:{xml:"responseXML",text:"responseText",json:...

import java.io.InputStreamReader
import java.net.ConnectException
import java.net.HttpURLConnection
import java.net.InetAddress
import java.net.ProtocolException
import java.net.SocketTimeoutException
import java.nio.charset.StandardCharsets.UTF_8
import java.time.Duration
import java.util.concurrent.TimeUnit
import javax.net.ssl.HttpsURLConnection
import kotlin.test.assertFailsWith
import mockwebserver3.SocketEffect.CloseSocket

import static com.google.common.jimfs.Feature.SECURE_DIRECTORY_STREAM;
import static com.google.common.jimfs.Feature.SYMBOLIC_LINKS;
import static com.google.common.truth.Truth.assertThat;
import static java.nio.charset.StandardCharsets.UTF_8;
import static java.nio.file.LinkOption.NOFOLLOW_LINKS;
import static java.util.concurrent.Executors.newSingleThreadExecutor;
import static org.junit.Assert.assertThrows;

        private final String output;

        public MockInputStreamThread(String output) {
            super(new java.io.ByteArrayInputStream(new byte[0]), java.nio.charset.StandardCharsets.UTF_8, 1000, null);
            this.output = output;
        }

        @Override
        public void start() {
            // Mock implementation
        }