Too many open files

tooManyOpenFiles.kts

package pl.droidsonroids.edgetest

import android.content.res.AssetFileDescriptor
import android.support.test.InstrumentationRegistry
import org.junit.Assert
import org.junit.Test

class TooManyOpenFilesTest {
	//asset named "test" required
	@Test
	fun tooManyOpenFilesDemo() {
		val context = InstrumentationRegistry.getContext()
		val assets = context.assets
		val descriptors = mutableListOf<AssetFileDescriptor>()
		try {
			for (i in 0..1024) {
				descriptors.add(assets.openFd("test"))
			}
		} catch (e: Exception) {
			e.printStackTrace() //java.io.FileNotFoundException: This file can not be opened as a file descriptor; it is probably compressed
		}
		try {
			context.openFileOutput("test", 0)
		} catch (e: Exception) {
			e.printStackTrace() //java.io.FileNotFoundException: /data/user/0/pl.droidsonroids.edgetest/files/test (Too many open files)
		}

		val sharedPreferences = context.getSharedPreferences("test", 0)
		Assert.assertTrue(sharedPreferences.edit().putBoolean("test", true).commit())
	}
}