Egorand

// Test.java
public class Test {
  public String foo() {
    return null;
  }
}

// Main.kt
fun main() {
  print(Test().foo().toString())

Egorand

@Test
public void d_shouldLoadContactsIfPermissionWasGranted() throws Exception {  
    for (Contact contact : TEST_CONTACTS) {
        onView(withText(contact.name)).check(matches(isDisplayed()));
        onView(withText(contact.phoneNumber)).check(matches(isDisplayed()));
    }
}

Egorand

public void onGrantPermission(View view) {  
    if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.READ_CONTACTS)) {
        ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_CONTACTS},
                    REQ_CODE_PERMISSIONS_READ_CONTACTS);
    } else {
        goToSettings();
    }
}

private void goToSettings() {  

Egorand

...
if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.READ_CONTACTS)) {  
    permissionDeniedRationaleView.setText(R.string.permission_denied_rationale_short);
} else {
    permissionDeniedRationaleView.setText(R.string.permission_denied_rationale_long);
}
...

Egorand

public static void grantPermission(UiDevice device, String permissionTitle) throws UiObjectNotFoundException {  
    UiObject permissionEntry = device.findObject(new UiSelector().text(permissionTitle));
    permissionEntry.click();
}

Egorand

public static void openPermissions(UiDevice device) throws UiObjectNotFoundException {  
    UiObject permissions = device.findObject(new UiSelector().text(TEXT_PERMISSIONS));
    permissions.click();
}

Egorand

public static void denyCurrentPermissionPermanently(UiDevice device) throws UiObjectNotFoundException {  
    UiObject neverAskAgainCheckbox = device.findObject(new UiSelector().text(TEXT_NEVER_ASK_AGAIN));
    neverAskAgainCheckbox.click();
    denyCurrentPermission(device);
}

Egorand

@Test
public void c_shouldDisplayLongRationaleIfPermissionWasDeniedPermanently() throws Exception {  
    denyCurrentPermissionPermanently(device);

    onView(withText(R.string.permission_denied_rationale_long)).check(matches(isDisplayed()));
    onView(withText(R.string.grant_permission)).check(matches(isDisplayed()));

    // will grant the permission for the next test
    onView(withText(R.string.grant_permission)).perform(click());
    openPermissions(device);

Egorand

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,  
                                           @NonNull int[] grantResults) {
    if (requestCode == REQ_CODE_PERMISSIONS_READ_CONTACTS && grantResults.length > 0) {
        int grantResult = grantResults[0];
        if (grantResult == PackageManager.PERMISSION_GRANTED) {
            loadContacts();
        } else {
            isPermissionAlreadyDenied = true;
            if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.READ_CONTACTS)) {

Egorand

@Test
public void b_shouldDisplayShortRationaleIfPermissionWasDenied() throws Exception {  
    denyCurrentPermission(device);

    onView(withText(R.string.permission_denied_rationale_short)).check(matches(isDisplayed()));
    onView(withText(R.string.grant_permission)).check(matches(isDisplayed()));
}