suspendTest
fun suspendTest( timeout: TimeSpan? = DEFAULT_SUSPEND_TEST_TIMEOUT, preferSyncIo: Boolean? = null, callback: suspend CoroutineScope.() -> Unit): AsyncEntryPointResult
fun suspendTest( cond: () -> Boolean, timeout: TimeSpan? = DEFAULT_SUSPEND_TEST_TIMEOUT, preferSyncIo: Boolean? = DEFAULT_TEST_SYNC_IO, callback: suspend CoroutineScope.() -> Unit): AsyncEntryPointResult