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()

  }

  @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()

import assertk.fail
import java.io.IOException
import java.net.ServerSocket
import java.net.Socket
import java.net.SocketException
import java.util.concurrent.TimeUnit
import kotlin.test.assertFailsWith
import okhttp3.DelegatingServerSocketFactory
import okhttp3.DelegatingSocketFactory
import okhttp3.OkHttpClient
import okhttp3.OkHttpClientTestRule
import okhttp3.Request
import okhttp3.RequestBody

        .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> {

 */
package okhttp3.coroutines

import assertk.assertThat
import assertk.assertions.isEqualTo
import assertk.assertions.isTrue
import java.io.IOException
import java.util.concurrent.TimeUnit
import kotlin.test.assertFailsWith
import kotlin.time.Duration.Companion.seconds
import kotlinx.coroutines.CancellationException
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.TimeoutCancellationException

        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 =
      """

  }

  @Test fun closeCodeOutOfRangeThrows() {
    assertFailsWith<IllegalArgumentException> {
      clientWriter.writeClose(98724976, "Hello".encodeUtf8())
    }.also { expected ->
      assertThat(expected.message).isEqualTo("Code must be in range [1000,5000): 98724976")
    }
  }

  @Test fun closeReservedThrows() {
    assertFailsWith<IllegalArgumentException> {

    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> {

    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> {

  }

  @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")
    }
  }