mockResponse = mockResponse.addHeader("", "")
    mockResponse = mockResponse.addHeaderLenient("", Any())
    mockResponse = mockResponse.setHeader("", Any())
    mockResponse.headers = headersOf()
    mockResponse.trailers = headersOf()
    mockResponse = mockResponse.removeHeader("")
    var body: Buffer? = mockResponse.getBody()
    mockResponse = mockResponse.setBody(Buffer())

### Kotlin
```kotlin
val response = MockResponse.Builder()
  .addHeader("Content-Type", "application/json; charset=utf-8")
  .addHeader("Cache-Control", "no-cache")
  .body("{}")
  .build()
```

MockResponse can be used to simulate a slow network. This is useful for
testing timeouts and interactive testing.

### Java
```java
MockResponse response = new MockResponse.Builder()

import kotlin.concurrent.thread
import kotlin.test.assertFailsWith
import kotlin.time.Duration
import kotlin.time.Duration.Companion.milliseconds
import kotlin.time.measureTime
import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import mockwebserver3.SocketEffect.CloseSocket
import mockwebserver3.SocketEffect.ShutdownConnection
import mockwebserver3.junit5.StartStop
import okhttp3.Headers.Companion.headersOf

    }
  }

  @Test
  fun none() {
    server.enqueue(MockResponse())
    client.newCall(request().build()).execute()
    applicationLogs.assertNoMoreLogs()
    networkLogs.assertNoMoreLogs()
  }

  @Test
  fun basicGet() {
    setLevel(Level.BASIC)
    server.enqueue(MockResponse())
    client.newCall(request().build()).execute()
    applicationLogs

        .requestIOException()
        .exhaustResponse()
    server.enqueue(
      MockResponse
        .Builder()
        .clearHeaders()
        .code(HttpURLConnection.HTTP_MOVED_PERM)
        .addHeader("Location: /b")
        .socketHandler(body)
        .build(),
    )
    server.enqueue(
      MockResponse
        .Builder()
        .body("this is /b")
        .build(),
    )
    val call =

        mockRequest = new TestHttpServletRequest();
        mockResponse = new TestHttpServletResponse();
        mockFilterChain = new TestFilterChain();
    }

    // Test with no Origin header
    @Test
    public void test_doFilter_noOriginHeader() throws IOException, ServletException {
        mockRequest.setHeader("Origin", null);

        corsFilter.doFilter(mockRequest, mockResponse, mockFilterChain);

 * limitations under the License.
 */
package okhttp3.mockwebserver

abstract class Dispatcher {
  @Throws(InterruptedException::class)
  abstract fun dispatch(request: RecordedRequest): MockResponse

  open fun peek(): MockResponse = MockResponse().apply { this.socketPolicy = SocketPolicy.KEEP_OPEN }

  open fun shutdown() {}

  @Throws(InterruptedException::class)
  override fun dispatch(request: RecordedRequest): MockResponse = throw UnsupportedOperationException("unexpected call")

  override fun peek(): MockResponse = throw UnsupportedOperationException("unexpected call")

  fun enqueueResponse(response: MockResponse) {
    delegate.enqueue(response.wrap())
  }

  override fun shutdown() {
    delegate.close()
  }

  }

  @Test
  fun failureWith401IsReadable() {
    server.enqueue(
      MockResponse(
        code = 401,
        body = "{\"error\":{\"message\":\"No auth credentials found\",\"code\":401}}",
        headers = Headers.headersOf("content-type", "application/json"),
      ),
    )
    server.enqueue(
      MockResponse(
        body =
          """
          |data: hey
          |
          |

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