import java.util.concurrent.ThreadFactory
import java.util.concurrent.TimeUnit
import org.junit.jupiter.api.AfterEach
import org.junit.jupiter.api.Tag
import org.junit.jupiter.api.Test

/**
 * Integration test to confirm that [TaskRunner] works with a real backend. Business logic is all
 * exercised by [TaskRunnerTest].
 *
 * This test is doing real sleeping with tolerances of 250 ms. Hopefully that's enough for even the

  @MockWebServerInstance("server3") private val server3: MockWebServer
) {
  @Test
  fun test() {
    ...
  }
}
```

Requirements
------------

MockWebServer's JUnit 5 integration works on Android 7.0+ (API level 24+) and Java 8+. Note that

| com.squareup.okhttp3:mockwebserver3-junit4:5.0.0-alpha.2 | mockwebserver3.junit4 | Optional JUnit 4 integration.     |
| com.squareup.okhttp3:mockwebserver3-junit5:5.0.0-alpha.2 | mockwebserver3.junit5 | Optional JUnit 5 integration.     |
| com.squareup.okhttp3:mockwebserver:5.0.0-alpha.2         | okhttp3.mockwebserver | Obsolete. Depends on JUnit 4.     |

     * Returns a character equivalent to 's' in this component. This is used to convert hostname
     * characters to lowercase.
     */
    open fun canonicalize(s: String): String = s
  }

  /** Tests integration between HttpUrl and the host platform's built-in URL classes, if any. */
  open class Platform {
    open fun test(
      codePoint: Int,
      codePointString: String,
      encoding: Encoding,

   * `ConcurrentModificationException`, but if new responses are added while iterating, their URLs
   * will not be returned. If existing responses are evicted during iteration, they will be absent
   * (unless they were already returned).
   *
   * The iterator supports [MutableIterator.remove]. Removing a URL from the iterator evicts the

 * [OkHttp Profiler](https://plugins.jetbrains.com/plugin/11249-okhttp-profiler): An IntelliJ plugin for monitoring OkHttp calls.
 * [OkReplay](https://github.com/airbnb/okreplay): Record and replay OkHttp network interaction in your tests.
 * [okhttp-signpost](https://github.com/pakerfeldt/okhttp-signpost): OAuth signing with signpost and OkHttp.

   * may be sent after response headers or body bytes have been received.
   *
   * Though any call may be initiated as a duplex call, only web servers that are specially
   * designed for this nonstandard interaction will use it. As of 2019-01, the only widely-used
   * implementation of this pattern is [gRPC][grpc].
   *
   * Because the encoding of interleaved data is not well-defined for HTTP/1, duplex request

        # args, so each arg winds up back in the position where it started, but
        # possibly modified.
        #
        # NB: a `for` loop captures its iteration list before it begins, so
        # changing the positional parameters here affects neither the number of
        # iterations, nor the values presented in `arg`.
        shift                   # remove old arg

   * entries will not be returned by the iterator. If existing entries are removed during iteration,
   * they will be absent (unless they were already returned).
   *
   * If there are I/O problems during iteration, this iterator fails silently. For example, if the
   * hosting filesystem becomes unreachable, the iterator will omit elements rather than throwing
   * exceptions.

        .addHeader("Cache-Control: max-age=60")
        .body("a")
        .build(),
    )
    val url = server.url("/a")
    assertThat(get(url).body.string()).isEqualTo("a")

    // Remove it with iteration.
    val i = cache.urls()
    assertThat(i.next()).isEqualTo(url.toString())
    i.remove()

    // Confirm that subsequent requests suffer a cache miss.
    server.enqueue(
      MockResponse.Builder()