Merge "Fix FsVerityTestApp with AdoptShellPermissionsRule" into main

import androidx.test.core.app.ApplicationProvider;

import androidx.test.platform.app.InstrumentationRegistry;

import com.android.compatibility.common.util.AdoptShellPermissionsRule;

import org.junit.Rule;

import org.junit.Test;

import java.io.FileOutputStream;

    private static final long BLOCK_SIZE = 4096;

    @Rule

    public final AdoptShellPermissionsRule mAdoptShellPermissionsRule =

            new AdoptShellPermissionsRule(

                    InstrumentationRegistry.getInstrumentation().getUiAutomation(),

                    android.Manifest.permission.SETUP_FSVERITY);

    @Test

    public void prepareTest() throws Exception {

        Context context = ApplicationProvider.getApplicationContext();