* ## Preemptive Authentication
 *
 * To make HTTPS calls using an HTTP proxy server OkHttp must first negotiate a connection with
 * the proxy. This proxy connection is called a "TLS Tunnel" and is specified by
 * [RFC 2817][1]. The HTTP CONNECT request that creates this tunnel connection is special: it
 * does not participate in any [interceptors][Interceptor] or [event listeners][EventListener]. It

  testImplementation(libs.androidx.test.runner)
  testImplementation(libs.robolectric)
  testImplementation(libs.androidx.espresso.core)
  testImplementation(libs.squareup.okio.fakefilesystem)

  androidTestImplementation(projects.okhttpTls)
  androidTestImplementation(libs.assertk)
  androidTestImplementation(projects.mockwebserver3Junit4)
  androidTestImplementation(libs.androidx.test.runner)
}

mavenPublishing {

androidx-annotation = "androidx.annotation:annotation:1.7.1"
androidx-espresso-core = "androidx.test.espresso:espresso-core:3.5.1"
androidx-junit = "androidx.test.ext:junit:1.1.5"
androidx-test-runner = "androidx.test:runner:1.5.2"
animalsniffer-annotations = "org.codehaus.mojo:animal-sniffer-annotations:1.23"
aqute-resolve = { module = "biz.aQute.bnd:biz.aQute.resolve", version.ref = "biz-aQute-bnd" }

              .build(),
        ),
      )
    val response = call.execute()
    assertThat(response.isSuccessful).isTrue()

    server.takeRequest() // Discard the CONNECT tunnel.
    return server.takeRequest()
  }

import androidx.test.ext.junit.runners.AndroidJUnit4;
import okhttp3.OkHttpClient;
import okhttp3.Protocol;
import okhttp3.Request;
import okhttp3.Response;
import org.junit.Test;
import org.junit.runner.RunWith;

import java.io.IOException;
import java.security.cert.Certificate;
import java.security.cert.X509Certificate;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

    and `www.squareup.com`. If a server refuses such sharing it will return HTTP 421 and OkHttp will
    automatically retry on an unshared connection.
 *  Fix: Don't crash if a TLS tunnel's response body is truncated.
 *  Fix: Don't track unusable routes beyond their usefulness. We had a bug where we could track
    certain bad routes indefinitely; now we only track the ones that could be necessary.

    val get = server.takeRequest()
    assertThat(get.requestLine).isEqualTo("GET /foo HTTP/1.1")
    assertThat(get.headers["Proxy-Authorization"]).isNull()
  }

  // Don't disconnect after building a tunnel with CONNECT
  // http://code.google.com/p/android/issues/detail?id=37221
  @Test
  fun proxyWithConnectionClose() {
    server.useHttps(handshakeCertificates.sslSocketFactory())

            ),
        )
      }
      else -> {
        val failure =
          ProtocolException(
            "Too many tunnel connections attempted: $MAX_TUNNEL_ATTEMPTS",
          )
        user.connectFailed(route, null, failure)
        return ConnectResult(plan = this, throwable = failure)
      }
    }
  }

  @Throws(IOException::class)
  private fun connectTls(
    sslSocket: SSLSocket,

import okhttp3.Request
import okio.Path.Companion.toPath
import okio.fakefilesystem.FakeFileSystem
import org.junit.AssumptionViolatedException
import org.junit.Before
import org.junit.Test
import org.junit.runner.RunWith
import org.robolectric.RobolectricTestRunner
import org.robolectric.annotation.Config

@RunWith(RobolectricTestRunner::class)
@Config(
  sdk = [30],
)
class RobolectricOkHttpClientTest {

import kotlin.coroutines.cancellation.CancellationException
import okio.Buffer
import org.junit.After
import org.junit.Assert.assertEquals
import org.junit.Assert.assertTrue
import org.junit.Test
import org.junit.runner.RunWith

/**
 * Android HttpEngine.
 */
@RunWith(AndroidJUnit4::class)
@SdkSuppress(minSdkVersion = 34)
class AndroidHttpEngineTest {
  val context = InstrumentationRegistry.getInstrumentation().context