EuiccSpecVersion

/*

 * Copyright (C) 2018 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.internal.telephony.uicc.euicc;

import java.util.Arrays;

/**

 * This represents the version of GSMA SGP.22 spec in the form of 3 numbers: major, minor, and

 * revision.

 *

 * @hide

 */

public final class EuiccSpecVersion implements Comparable<EuiccSpecVersion> {

    private final int[] mVersionValues = new int[3];

    public EuiccSpecVersion(int major, int minor, int revision) {

        mVersionValues[0] = major;

        mVersionValues[1] = minor;

        mVersionValues[2] = revision;

    }

    /**

     * @param version The version bytes from ASN1 data. The length must be 3.

     */

    public EuiccSpecVersion(byte[] version) {

        mVersionValues[0] = version[0] & 0xFF;

        mVersionValues[1] = version[1] & 0xFF;

        mVersionValues[2] = version[2] & 0xFF;

    }

    public int getMajor() {

        return mVersionValues[0];

    }

    public int getMinor() {

        return mVersionValues[1];

    }

    public int getRevision() {

        return mVersionValues[2];

    }

    @Override

    public int compareTo(EuiccSpecVersion that) {

        if (getMajor() > that.getMajor()) {

            return 1;

        } else if (getMajor() < that.getMajor()) {

            return -1;

        }

        if (getMinor() > that.getMinor()) {

            return 1;

        } else if (getMinor() < that.getMinor()) {

            return -1;

        }

        if (getRevision() > that.getRevision()) {

            return 1;

        } else if (getRevision() < that.getRevision()) {

            return -1;

        }

        return 0;

    }

    @Override

    public boolean equals(Object obj) {

        if (this == obj) {

            return true;

        }

        if (obj == null || getClass() != obj.getClass()) {

            return false;

        }

        return Arrays.equals(mVersionValues, ((EuiccSpecVersion) obj).mVersionValues);

    }

    @Override

    public int hashCode() {

        return Arrays.hashCode(mVersionValues);

    }

    @Override

    public String toString() {

        return mVersionValues[0] + "." + mVersionValues[1] + "." + mVersionValues[2];

    }

}

/*

 * Copyright (C) 2018 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.internal.telephony.uicc.euicc;

import static org.junit.Assert.assertEquals;

import static org.junit.Assert.assertFalse;

import static org.junit.Assert.assertNotEquals;

import static org.junit.Assert.assertTrue;

import org.junit.Test;

public class EuiccSpecVersionTest {

    @Test

    public void testCreate() {

        EuiccSpecVersion ver = new EuiccSpecVersion(1, 2, 3);

        assertEquals(1, ver.getMajor());

        assertEquals(2, ver.getMinor());

        assertEquals(3, ver.getRevision());

    }

    @Test

    public void testCreateFromBytes() {

        EuiccSpecVersion ver = new EuiccSpecVersion(new byte[] {1, 2, 3});

        assertEquals(1, ver.getMajor());

        assertEquals(2, ver.getMinor());

        assertEquals(3, ver.getRevision());

    }

    @Test

    public void testCompareTo() {

        EuiccSpecVersion ver1 = new EuiccSpecVersion(1, 2, 3);

        EuiccSpecVersion ver2 = new EuiccSpecVersion(1, 2, 3);

        assertEquals(0, ver1.compareTo(ver2));

        assertEquals(0, ver2.compareTo(ver1));

        assertTrue(ver1.equals(ver2));

        assertFalse(ver1.equals(null));

        assertFalse(ver1.equals(new Object()));

        assertEquals(ver1.hashCode(), ver2.hashCode());

        ver2 = new EuiccSpecVersion(2, 2, 3);

        assertEquals(-1, ver1.compareTo(ver2));

        assertEquals(1, ver2.compareTo(ver1));

        assertFalse(ver2.equals(ver1));

        assertNotEquals(ver1.hashCode(), ver2.hashCode());

        ver2 = new EuiccSpecVersion(1, 3, 3);

        assertEquals(-1, ver1.compareTo(ver2));

        assertEquals(1, ver2.compareTo(ver1));

        assertFalse(ver2.equals(ver1));

        assertNotEquals(ver1.hashCode(), ver2.hashCode());

        ver2 = new EuiccSpecVersion(1, 2, 4);

        assertEquals(-1, ver1.compareTo(ver2));

        assertEquals(1, ver2.compareTo(ver1));

        assertFalse(ver2.equals(ver1));

        assertNotEquals(ver1.hashCode(), ver2.hashCode());

        ver2 = new EuiccSpecVersion(2, 2, 2);

        assertEquals(-1, ver1.compareTo(ver2));

        assertEquals(1, ver2.compareTo(ver1));

        ver2 = new EuiccSpecVersion(2, 1, 3);

        assertEquals(-1, ver1.compareTo(ver2));

        assertEquals(1, ver2.compareTo(ver1));

        ver2 = new EuiccSpecVersion(1, 3, 2);

        assertEquals(-1, ver1.compareTo(ver2));

        assertEquals(1, ver2.compareTo(ver1));

    }

}