}

  @Test fun ofRejectsNullChar() {
    assertFailsWith<IllegalArgumentException> {
      headersOf("User-Agent", "Square\u0000OkHttp")
    }
  }

  @Test fun ofMapThrowsOnEmptyName() {
    assertFailsWith<IllegalArgumentException> {
      mapOf("" to "OkHttp").toHeaders()
    }
  }

  @Test fun ofMapThrowsOnBlankName() {
    assertFailsWith<IllegalArgumentException> {
      mapOf(" " to "OkHttp").toHeaders()

        .build()

    // Should be pinned:
    assertFailsWith<SSLPeerUnverifiedException> {
      certificatePinner.check("example.co.uk", listOf(certB1.certificate))
    }
    assertFailsWith<SSLPeerUnverifiedException> {
      certificatePinner.check("foo.example.co.uk", listOf(certB1.certificate))
    }
    assertFailsWith<SSLPeerUnverifiedException> {

    val bytes = "170d3139313231362333303231305a".decodeHex()
    assertFailsWith<ProtocolException> {
      Adapters.UTC_TIME.fromDer(bytes)
    }.also { expected ->
      assertThat(expected).hasMessage("Failed to parse UTCTime 191216#30210Z")
    }
  }

  @Test fun `cannot decode generalized time with offset`() {
    assertFailsWith<ProtocolException> {

  }

  @Test fun addThrowsOnEmptyName() {
    assertFailsWith<IllegalArgumentException> {
      Headers.Builder().add(": bar")
    }
    assertFailsWith<IllegalArgumentException> {
      Headers.Builder().add(" : bar")
    }
  }

  @Test fun addThrowsOnNoColon() {
    assertFailsWith<IllegalArgumentException> {
      Headers.Builder().add("foo bar")
    }
  }

        boundary = "simple boundary",
        source = Buffer().writeUtf8(multipart),
      )

    val part = parts.nextPart()!!
    assertFailsWith<EOFException> {
      assertThat(part.body.readUtf8()).isEqualTo("abcd\r\nefgh\r\n")
    }

    assertFailsWith<EOFException> {
      assertThat(parts.nextPart()).isNull()
    }
  }

  @Test fun `malformed headers`() {
    val multipart =
      """

    data.write("0a00".decodeHex()) // Empty pong.
    assertFailsWith<ProtocolException> {
      clientReader.processNextFrame()
    }.also { expected ->
      assertThat(expected.message)
        .isEqualTo("Control frames must be final.")
    }
  }

  @Test fun reservedFlag1IsUnsupportedWithNoCompression() {
    data.write("ca00".decodeHex()) // Empty pong, flag 1 set.
    assertFailsWith<ProtocolException> {

    builder.networkInterceptors().addAll(listOf(null) as List<Interceptor>)
    assertFailsWith<IllegalStateException> {
      builder.build()
    }.also { expected ->
      assertThat(expected.message).isEqualTo("Null network interceptor: [null]")
    }
  }

  @Test fun testH2PriorKnowledgeOkHttpClientConstructionFallback() {
    assertFailsWith<IllegalArgumentException> {
      OkHttpClient.Builder()

    val builder = Request.Builder()
    assertFailsWith<IllegalArgumentException> {
      builder.header(s, "Value")
    }
    assertFailsWith<IllegalArgumentException> {
      builder.addHeader(s, "Value")
    }
    assertFailsWith<IllegalArgumentException> {
      builder.header("Name", s)
    }
    assertFailsWith<IllegalArgumentException> {
      builder.addHeader("Name", s)
    }
  }

      )

    call.execute().use { response ->
      assertThat(response.body.string()).isEqualTo("abc")
      val requestBodyOut = requestBody.takeSink()
      assertFailsWith<IOException> {
        SlowRequestBody.writeTo(requestBodyOut)
      }
      assertFailsWith<IOException> {
        requestBodyOut.close()
      }
    }

    // Confirm that the connection pool was not corrupted by making another call.

import assertk.assertions.isTrue
import java.io.IOException
import java.io.InputStreamReader
import java.io.Reader
import java.nio.charset.StandardCharsets
import java.util.concurrent.atomic.AtomicBoolean
import kotlin.test.assertFailsWith
import okhttp3.MediaType.Companion.toMediaType
import okhttp3.ResponseBody.Companion.toResponseBody
import okhttp3.internal.and
import okio.Buffer
import okio.BufferedSource
import okio.ByteString