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)
    }
  }

  private fun Editor.assertInoperable() {
    assertFailsWith<IllegalStateException> {
      setString(0, "A")
    }
    assertFailsWith<IllegalStateException> {
      newSource(0)
    }
    assertFailsWith<IllegalStateException> {
      newSink(0)
    }
    assertFailsWith<IllegalStateException> {
      commit()
    }
    assertFailsWith<IllegalStateException> {
      abort()
    }

  }

  @Test
  fun requestHeaderValidationIsStrict() {
    assertFailsWith<IllegalArgumentException> {
      Request
        .Builder()
        .addHeader("a\tb", "Value")
    }
    assertFailsWith<IllegalArgumentException> {
      Request
        .Builder()
        .addHeader("Name", "c\u007fd")
    }
    assertFailsWith<IllegalArgumentException> {
      Request
        .Builder()

import assertk.assertions.isInstanceOf
import assertk.assertions.isNotSameAs
import java.io.IOException
import java.net.Proxy
import java.security.cert.X509Certificate
import java.time.Duration
import kotlin.test.assertFailsWith
import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import mockwebserver3.SocketEffect.CloseSocket
import mockwebserver3.junit5.StartStop
import okhttp3.Headers.Companion.headersOf

        }
      },
    )
  }

  @Test fun badWindowSizeIncrement() {
    assertFailsWith<IllegalArgumentException> {
      windowUpdate(0)
    }.also { expected ->
      assertThat(expected.message)
        .isEqualTo("windowSizeIncrement == 0 || windowSizeIncrement > 0x7fffffffL: 0")
    }
    assertFailsWith<IllegalArgumentException> {
      windowUpdate(0x80000000L)
    }.also { expected ->

import java.util.concurrent.atomic.AtomicReference
import javax.net.ssl.HostnameVerifier
import javax.net.ssl.SSLPeerUnverifiedException
import javax.net.ssl.SSLSession
import javax.net.ssl.X509TrustManager
import kotlin.test.assertFailsWith
import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import mockwebserver3.junit5.StartStop
import okhttp3.CertificatePinner.Companion.pin
import okhttp3.testing.PlatformRule

package okhttp3.dnsoverhttps

import assertk.assertThat
import assertk.assertions.containsExactly
import assertk.assertions.isEqualTo
import java.net.InetAddress
import java.net.UnknownHostException
import kotlin.test.assertFailsWith
import okhttp3.dnsoverhttps.DnsRecordCodec.TYPE_A
import okhttp3.dnsoverhttps.DnsRecordCodec.TYPE_AAAA
import okhttp3.dnsoverhttps.DnsRecordCodec.decodeAnswers
import okio.ByteString.Companion.decodeHex

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package okhttp3

import assertk.assertThat
import assertk.assertions.hasMessage
import kotlin.test.assertFailsWith
import org.junit.jupiter.api.Test
import org.junit.jupiter.api.extension.BeforeEachCallback
import org.junit.jupiter.api.extension.ExtensionContext
import org.junit.jupiter.api.extension.RegisterExtension

      )

    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.

    assertThat(cookie.persistent).isTrue()
    assertThat(cookie.hostOnly).isFalse()
  }

  @Test fun builderNameValidation() {
    assertFailsWith<IllegalArgumentException> {
      Cookie.Builder().name(" a ")
    }
  }

  @Test fun builderValueValidation() {
    assertFailsWith<IllegalArgumentException> {
      Cookie.Builder().value(" b ")
    }
  }

  @Test fun builderClampsMaxDate() {
    val cookie =