[Testing] AndroidJUnit4 RoamingPreferenceControllerTest

/*

 * Copyright (C) 2020 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.android.settings.network.telephony;

import static com.google.common.truth.Truth.assertThat;

import static org.mockito.ArgumentMatchers.anyBoolean;

import static org.mockito.Mockito.doReturn;

import static org.mockito.Mockito.never;

import static org.mockito.Mockito.spy;

import static org.mockito.Mockito.verify;

import static org.mockito.Mockito.when;

import android.content.Context;

import android.os.PersistableBundle;

import android.telephony.CarrierConfigManager;

import android.telephony.SubscriptionManager;

import android.telephony.TelephonyManager;

import androidx.fragment.app.FragmentManager;

import androidx.fragment.app.FragmentTransaction;

import androidx.test.annotation.UiThreadTest;

import androidx.test.core.app.ApplicationProvider;

import androidx.test.ext.junit.runners.AndroidJUnit4;

import com.android.settings.core.BasePreferenceController;

import com.android.settingslib.RestrictedSwitchPreference;

import org.junit.Before;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.mockito.Mock;

import org.mockito.MockitoAnnotations;

@RunWith(AndroidJUnit4.class)

public class RoamingPreferenceControllerTest {

    private static final int SUB_ID = 2;

    @Mock

    private FragmentManager mFragmentManager;

    @Mock

    private TelephonyManager mTelephonyManager;

    @Mock

    private TelephonyManager mInvalidTelephonyManager;

    @Mock

    private SubscriptionManager mSubscriptionManager;

    @Mock

    private FragmentTransaction mFragmentTransaction;

    @Mock

    private CarrierConfigManager mCarrierConfigManager;

    private RoamingPreferenceController mController;

    private RestrictedSwitchPreference mPreference;

    private Context mContext;

    @Before

    public void setUp() {

        MockitoAnnotations.initMocks(this);

        mContext = spy(ApplicationProvider.getApplicationContext());

        doReturn(mTelephonyManager).when(mContext).getSystemService(Context.TELEPHONY_SERVICE);

        doReturn(mSubscriptionManager).when(mContext).getSystemService(

                Context.TELEPHONY_SUBSCRIPTION_SERVICE);

        doReturn(mCarrierConfigManager).when(mContext).getSystemService(

                Context.CARRIER_CONFIG_SERVICE);

        doReturn(mTelephonyManager).when(mTelephonyManager).createForSubscriptionId(SUB_ID);

        doReturn(mInvalidTelephonyManager).when(mTelephonyManager).createForSubscriptionId(

                SubscriptionManager.INVALID_SUBSCRIPTION_ID);

        doReturn(mFragmentTransaction).when(mFragmentManager).beginTransaction();

        mPreference = spy(new RestrictedSwitchPreference(mContext));

        mController = spy(new RoamingPreferenceController(mContext, "roaming"));

        mController.init(mFragmentManager, SUB_ID);

        mPreference.setKey(mController.getPreferenceKey());

    }

    @Test

    public void getAvailabilityStatus_validSubId_returnAvailable() {

        assertThat(mController.getAvailabilityStatus()).isEqualTo(

                BasePreferenceController.AVAILABLE);

    }

    @Test

    public void getAvailabilityStatus_invalidSubId_returnUnsearchable() {

        mController.init(mFragmentManager, SubscriptionManager.INVALID_SUBSCRIPTION_ID);

        assertThat(mController.getAvailabilityStatus()).isEqualTo(

                BasePreferenceController.AVAILABLE_UNSEARCHABLE);

    }

    @Test

    public void isDialogNeeded_roamingDisabledWithoutFlag_returnTrue() {

        final PersistableBundle bundle = new PersistableBundle();

        bundle.putBoolean(CarrierConfigManager.KEY_DISABLE_CHARGE_INDICATION_BOOL, false);

        doReturn(bundle).when(mCarrierConfigManager).getConfigForSubId(SUB_ID);

        doReturn(false).when(mTelephonyManager).isDataRoamingEnabled();

        assertThat(mController.isDialogNeeded()).isTrue();

    }

    @Test

    public void isDialogNeeded_roamingEnabled_returnFalse() {

        doReturn(true).when(mTelephonyManager).isDataRoamingEnabled();

        assertThat(mController.isDialogNeeded()).isFalse();

    }

    @Test

    @UiThreadTest

    public void setChecked_needDialog_showDialog() {

        doReturn(false).when(mTelephonyManager).isDataRoamingEnabled();

        doReturn(null).when(mCarrierConfigManager).getConfigForSubId(SUB_ID);

        mController.setChecked(true);

        verify(mFragmentManager).beginTransaction();

    }

    @Test

    public void updateState_invalidSubId_disabled() {

        mController.init(mFragmentManager, SubscriptionManager.INVALID_SUBSCRIPTION_ID);

        mController.updateState(mPreference);

        assertThat(mPreference.isEnabled()).isFalse();

    }

    @Test

    public void updateState_validSubId_enabled() {

        doReturn(true).when(mTelephonyManager).isDataRoamingEnabled();

        mController.updateState(mPreference);

        assertThat(mPreference.isEnabled()).isTrue();

        assertThat(mPreference.isChecked()).isTrue();

    }

    @Test

    public void updateState_isNotDisabledByAdmin_shouldInvokeSetEnabled() {

        when(mPreference.isDisabledByAdmin()).thenReturn(false);

        mController.updateState(mPreference);

        verify(mPreference).setEnabled(anyBoolean());

    }

    @Test

    public void updateState_isDisabledByAdmin_shouldNotInvokeSetEnabled() {

        when(mPreference.isDisabledByAdmin()).thenReturn(true);

        mController.updateState(mPreference);

        verify(mPreference, never()).setEnabled(anyBoolean());

    }

}