import java.util.concurrent.ExecutionException
import java.util.concurrent.ExecutorService
import java.util.concurrent.Executors
import java.util.concurrent.TimeUnit
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.

import assertk.assertions.isTrue
import java.io.IOException
import java.util.concurrent.TimeUnit
import kotlin.test.assertFailsWith
import kotlin.time.Duration.Companion.seconds
import kotlinx.coroutines.CancellationException
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.ExperimentalCoroutinesApi
import kotlinx.coroutines.TimeoutCancellationException
import kotlinx.coroutines.coroutineScope
import kotlinx.coroutines.job

import assertk.assertions.isTrue
import java.io.IOException
import java.util.concurrent.TimeUnit
import kotlin.test.assertFailsWith
import kotlin.time.Duration.Companion.seconds
import kotlinx.coroutines.CancellationException
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.TimeoutCancellationException
import kotlinx.coroutines.coroutineScope
import kotlinx.coroutines.job
import kotlinx.coroutines.supervisorScope

that by default Kotlin's Dispatchers are not used.

Cancellation if implemented sensibly in both directions.
Cancelling a coroutine scope, will cancel the call.
Cancelling a call, will throw a CancellationException

PLkotlinx/coroutines/JobImpl;->getOnCancelComplete$kotlinx_coroutines_core()Z
PLkotlinx/coroutines/JobKt;->cancel$default(Lkotlin/coroutines/CoroutineContext;Ljava/util/concurrent/CancellationException;ILjava/lang/Object;)V
PLkotlinx/coroutines/JobSupport$Finishing;-><init>(Lkotlinx/coroutines/NodeList;ZLjava/lang/Throwable;)V
PLkotlinx/coroutines/JobSupport$Finishing;->addExceptionLocked(Ljava/lang/Throwable;)V