/*
 * Copyright (C) 2024 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.android.settings.core.BasePreferenceController.AVAILABLE;
import static com.android.settings.core.BasePreferenceController.UNSUPPORTED_ON_DEVICE;

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

import static org.mockito.Mockito.doReturn;
import static org.mockito.Mockito.doThrow;
import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.when;

import android.content.Context;
import android.telephony.TelephonyManager;

import androidx.preference.Preference;
import androidx.preference.PreferenceManager;
import androidx.preference.PreferenceScreen;
import androidx.test.core.app.ApplicationProvider;
import androidx.test.ext.junit.runners.AndroidJUnit4;

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 CellularSecurityEncryptionDividerControllerTest {
    @Mock
    private TelephonyManager mTelephonyManager;
    @Mock
    private Preference mPreference;
    private PreferenceScreen mPreferenceScreen;

    private static final String PREF_KEY = "cellular_security_encryption_divider_test";
    private Context mContext;
    private CellularSecurityEncryptionDividerController mController;

    @Before
    public void setUp() {
        MockitoAnnotations.initMocks(this);

        mContext = spy(ApplicationProvider.getApplicationContext());
        when(mContext.getSystemService(TelephonyManager.class)).thenReturn(mTelephonyManager);

        mController = new CellularSecurityEncryptionDividerController(mContext, PREF_KEY);

        mPreference = spy(new Preference(mContext));
        mPreference.setKey(PREF_KEY);
        mPreferenceScreen = new PreferenceManager(mContext).createPreferenceScreen(mContext);
        mPreferenceScreen.addPreference(mPreference);
    }

    @Test
    public void getAvailabilityStatus_hardwareSupported_shouldReturnAvailable() {
        doReturn(true).when(mTelephonyManager).isNullCipherAndIntegrityPreferenceEnabled();
        assertThat(mController.getAvailabilityStatus()).isEqualTo(AVAILABLE);
    }

    @Test
    public void getAvailabilityStatus_noHardwareSupport_shouldReturnUnsupported() {
        // Hardware support is disabled
        doThrow(new UnsupportedOperationException("test")).when(mTelephonyManager)
              .isNullCipherAndIntegrityPreferenceEnabled();
        assertThat(mController.getAvailabilityStatus()).isEqualTo(UNSUPPORTED_ON_DEVICE);
    }
}