.addHeader("Cache-Control: max-age=0")
        .addHeaderLenient("Alpha", "α")
        .addHeaderLenient("β", "Beta")
        .body("abcd")
        .build(),
    )
    server.enqueue(
      MockResponse
        .Builder()
        .addHeader("Transfer-Encoding: none")
        .addHeaderLenient("Gamma", "Γ")
        .addHeaderLenient("Δ", "Delta")
        .code(HttpURLConnection.HTTP_NOT_MODIFIED)

import okhttp3.Headers
import okhttp3.Headers.Companion.headersOf
import okhttp3.HttpUrl
import okhttp3.Protocol
import okhttp3.Request
import okhttp3.Response
import okhttp3.internal.addHeaderLenient
import okhttp3.internal.closeQuietly
import okhttp3.internal.concurrent.TaskRunner
import okhttp3.internal.http.HttpMethod
import okhttp3.internal.http2.ErrorCode
import okhttp3.internal.http2.Header

  @Test
  fun responseHeaderParsingIsLenient() {
    val headersBuilder = Headers.Builder()
    headersBuilder.add("Content-Length", "0")
    addHeaderLenient(headersBuilder, "a\tb: c\u007fd")
    addHeaderLenient(headersBuilder, ": ef")
    addHeaderLenient(headersBuilder, "\ud83c\udf69: \u2615\ufe0f")
    val headers = headersBuilder.build()
    server.enqueue(MockResponse(headers = headers))