Add tests for SecurityAlgorithmUpdate

/*

 * Copyright (C) 2023 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.

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package com.android.internal.telephony.security;

import static android.telephony.SecurityAlgorithmUpdate.CONNECTION_EVENT_VOLTE_SIP;

import static android.telephony.SecurityAlgorithmUpdate.SECURITY_ALGORITHM_EEA2;

import static android.telephony.SecurityAlgorithmUpdate.SECURITY_ALGORITHM_HMAC_SHA1_96;

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

import android.os.Parcel;

import android.telephony.SecurityAlgorithmUpdate;

import org.junit.Test;

public final class SecurityAlgorithmUpdateTest {

    @Test

    public void testEqualsAndHash() {

        SecurityAlgorithmUpdate update = new SecurityAlgorithmUpdate(

                CONNECTION_EVENT_VOLTE_SIP, SECURITY_ALGORITHM_EEA2,

                SECURITY_ALGORITHM_HMAC_SHA1_96, false);

        SecurityAlgorithmUpdate sameUpdate = new SecurityAlgorithmUpdate(

                CONNECTION_EVENT_VOLTE_SIP, SECURITY_ALGORITHM_EEA2,

                SECURITY_ALGORITHM_HMAC_SHA1_96, false);

        assertThat(update).isEqualTo(sameUpdate);

        assertThat(update.hashCode()).isEqualTo(sameUpdate.hashCode());

    }

    @Test

    public void testNotEqualsAndHash() {

        SecurityAlgorithmUpdate update = new SecurityAlgorithmUpdate(

                CONNECTION_EVENT_VOLTE_SIP, SECURITY_ALGORITHM_EEA2,

                SECURITY_ALGORITHM_HMAC_SHA1_96, false);

        SecurityAlgorithmUpdate sameUpdate = new SecurityAlgorithmUpdate(

                CONNECTION_EVENT_VOLTE_SIP, SECURITY_ALGORITHM_EEA2,

                SECURITY_ALGORITHM_HMAC_SHA1_96, true);

        assertThat(update).isNotEqualTo(sameUpdate);

        assertThat(update.hashCode()).isNotEqualTo(sameUpdate.hashCode());

    }

    @Test

    public void testGetters() {

        SecurityAlgorithmUpdate update = new SecurityAlgorithmUpdate(

                CONNECTION_EVENT_VOLTE_SIP, SECURITY_ALGORITHM_EEA2,

                SECURITY_ALGORITHM_HMAC_SHA1_96, false);

        assertThat(update.getConnectionEvent()).isEqualTo(CONNECTION_EVENT_VOLTE_SIP);

        assertThat(update.getEncryption()).isEqualTo(SECURITY_ALGORITHM_EEA2);

        assertThat(update.getIntegrity()).isEqualTo(SECURITY_ALGORITHM_HMAC_SHA1_96);

        assertThat(update.isUnprotectedEmergency()).isFalse();

    }

    @Test

    public void testParcel() {

        SecurityAlgorithmUpdate update = new SecurityAlgorithmUpdate(

                CONNECTION_EVENT_VOLTE_SIP, SECURITY_ALGORITHM_EEA2,

                SECURITY_ALGORITHM_HMAC_SHA1_96, false);

        Parcel p = Parcel.obtain();

        update.writeToParcel(p, 0);

        p.setDataPosition(0);

        SecurityAlgorithmUpdate fromParcel = SecurityAlgorithmUpdate.CREATOR.createFromParcel(p);

        assertThat(fromParcel).isEqualTo(update);

    }

}