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@OptIn(ExperimentalCoroutinesApi::class)
class NeverEndingCoroutineTest {

    @Test
    fun `should emit error when playSound throws`() = runTest {

        val exception = Exception("Oopsie")
        val soundPlayer = mockk<SoundPlayer>()
        coEvery { soundPlayer.playSound() } throws exception

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  @Test
  fun `should increase the playback counter after the sound has finished playing`() = runTest {

      val soundPlayer = mockk<SoundPlayer>()
      coEvery { soundPlayer.playSound() } coAnswers { delay(1000) }

      val sut = MediaPlayer(this, soundPlayer)

      sut.play()
      advanceTimeBy(1000)

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@Test
fun `should not increase the playback counter until the sound has finished playing`() = runTest {

    val soundPlayer = mockk<SoundPlayer>()
    coEvery { soundPlayer.playSound() } coAnswers { delay(1000) }

    val sut = MediaPlayer(this, soundPlayer)

    sut.play()
    advanceTimeBy(500)

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interface SoundPlayer {
    suspend fun playSound()
}

class MediaPlayer(
    private val scope: CoroutineScope,
    private val soundPlayer: SoundPlayer
) {

    var playbackCounter = 0

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@Test
fun `should change state to Playing after play() called`() = runTest(UnconfinedTestDispatcher()) {

    val soundPlayer = mockk<SoundPlayer>()
    coJustRun { soundPlayer.playSound() }

    val sut = MediaPlayer(this, soundPlayer)

    sut.playerState.test {
        awaitItem() shouldBe PlayerState.Stopped

micHar

interface SoundPlayer {
    suspend fun playSound()
}

sealed class PlayerState {
    object Stopped : PlayerState()
    object Playing : PlayerState()
}

class MediaPlayer(

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class MediaPlayer(...) {

    ...

    fun dispose() {
        scope.cancel()
    }

}

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interface IssueReporter {
    fun reportIssue(e: Exception)
}

interface SoundPlayer {
    suspend fun playSound()
}

class MediaPlayer(
    private val scope: CoroutineScope,

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interface SoundPlayer {
    suspend fun playSound()
}

class MediaPlayer(
    private val scope: CoroutineScope,
    private val soundPlayer: SoundPlayer
) {

    val playerErrors = MutableSharedFlow<Exception>()

micHar

class ListAdapter(val itemClickListener : () -> Unit) { ...