import java.net.CookieManager
import java.net.CookiePolicy
import java.net.HttpCookie
import java.net.HttpURLConnection
import java.net.InetAddress
import java.net.URI
import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import mockwebserver3.junit5.StartStop
import okhttp3.Cookie.Companion.parse
import okhttp3.HttpUrl.Companion.toHttpUrl
import okhttp3.java.net.cookiejar.JavaNetCookieJar
import org.junit.jupiter.api.Test

import java.util.Locale
import java.util.TimeZone
import java.util.concurrent.TimeUnit
import javax.net.ssl.HostnameVerifier
import javax.net.ssl.SSLSession
import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import mockwebserver3.junit5.StartStop
import okhttp3.Headers.Companion.headersOf
import okhttp3.internal.buildCache
import okhttp3.java.net.cookiejar.JavaNetCookieJar
import okhttp3.okio.LoggingFilesystem

 * limitations under the License.
 */
package okhttp3.sse.internal

import assertk.assertThat
import assertk.assertions.isEqualTo
import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import mockwebserver3.junit5.StartStop
import okhttp3.Headers
import okhttp3.OkHttpClientTestRule
import okhttp3.Request
import okhttp3.sse.EventSource.Companion.processEventSource

```kotlin
testImplementation("com.squareup.okhttp3:mockwebserver3:5.1.0")
```

MockWebServer is used for firstly for internal testing, and for basic testing of apps using OkHttp client.
It is not a full featured HTTP testing library that is developed standalone. It is not being actively developed

    return headerList
  }

  @Test
  fun shutdownWithoutStart() {
    val server = MockWebServer()
    server.shutdown()
  }

  @Test
  fun closeViaClosable() {
    val server: Closeable = MockWebServer()
    server.close()
  }

  @Test
  fun shutdownWithoutEnqueue() {
    val server = MockWebServer()
    server.start()
    server.shutdown()
  }

  @Test

import assertk.assertions.isEqualTo
import assertk.assertions.isNotNull
import assertk.assertions.isNull
import javax.net.ssl.SSLException
import kotlin.test.assertFailsWith
import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import mockwebserver3.junit5.StartStop
import okhttp3.testing.PlatformRule
import okhttp3.tls.HandshakeCertificates
import okhttp3.tls.HeldCertificate
import org.junit.jupiter.api.BeforeEach

policy:

```java
HandshakeCertificates serverCertificates = new HandshakeCertificates.Builder()
    .heldCertificate(localhostCertificate)
    .build();
MockWebServer server = new MockWebServer();
server.useHttps(serverCertificates.sslSocketFactory(), false);
```

`HandshakeCertificates` also works for clients where its job is to define which root certificates

import assertk.assertions.hasMessage
import assertk.assertions.isEqualTo
import assertk.assertions.isNull
import assertk.assertions.isTrue
import kotlin.test.assertFailsWith
import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import mockwebserver3.junit5.StartStop
import okhttp3.Headers.Companion.headersOf
import okhttp3.OkHttpClientTestRule
import okhttp3.Protocol
import okhttp3.RecordingEventListener

import kotlinx.coroutines.supervisorScope
import kotlinx.coroutines.test.runTest
import kotlinx.coroutines.withContext
import kotlinx.coroutines.withTimeout
import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import mockwebserver3.SocketEffect
import mockwebserver3.junit5.StartStop
import okhttp3.Callback
import okhttp3.FailingCall
import okhttp3.HttpUrl.Companion.toHttpUrl
import okhttp3.OkHttpClientTestRule

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package mockwebserver3

import assertk.assertThat
import assertk.assertions.containsExactly
import assertk.assertions.isEmpty
import assertk.assertions.isEqualTo
import assertk.assertions.isTrue
import mockwebserver3.junit5.StartStop
import okhttp3.Dns
import okhttp3.Headers.Companion.headersOf