cancelAll()
          } finally {
            coordinatorWaiting = false
          }
        }
      }
    }
  }

  /** Start another thread, unless a new thread is already scheduled to start. */
  private fun startAnotherThread() {
    assertLockHeld()
    if (executeCallCount > runCallCount) return // A thread is still starting.

    executeCallCount++

  }

  @AfterEach
  fun tearDown() {
    Thread.interrupted() // Clear interrupted state.
  }

  @Test
  fun interruptWritingRequestBody() {
    server.enqueue(MockResponse())
    server.start()
    val call =
      client.newCall(
        Request
          .Builder()
          .url(server.url("/"))
          .post(
            object : RequestBody() {