Smack/smack-omemo/src/test/java/org/jivesoftware/smackx/omemo/WrapperObjectsTest.java

/**
 *
 * Copyright the original author or authors
 *
 * 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 org.jivesoftware.smackx.omemo;

import static junit.framework.TestCase.assertEquals;
import static junit.framework.TestCase.assertTrue;
import static org.jivesoftware.smackx.omemo.util.OmemoConstants.Crypto.KEYLENGTH;
import static org.jivesoftware.smackx.omemo.util.OmemoConstants.Crypto.KEYTYPE;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertFalse;

import java.security.NoSuchAlgorithmException;

import org.jivesoftware.smack.test.util.SmackTestSuite;
import org.jivesoftware.smackx.omemo.element.OmemoElement;
import org.jivesoftware.smackx.omemo.exceptions.CryptoFailedException;
import org.jivesoftware.smackx.omemo.internal.CipherAndAuthTag;
import org.jivesoftware.smackx.omemo.internal.CiphertextTuple;
import org.jivesoftware.smackx.omemo.util.OmemoMessageBuilder;

import org.junit.Test;

/**
 * Test the identityKeyWrapper.
 */
public class WrapperObjectsTest extends SmackTestSuite {

    @Test
    public void ciphertextTupleTest() {
        byte[] c = OmemoMessageBuilder.generateIv();
        CiphertextTuple c1 = new CiphertextTuple(c, OmemoElement.TYPE_OMEMO_PREKEY_MESSAGE);
        assertTrue(c1.isPreKeyMessage());
        assertArrayEquals(c, c1.getCiphertext());
        assertEquals(OmemoElement.TYPE_OMEMO_PREKEY_MESSAGE, c1.getMessageType());

        CiphertextTuple c2 = new CiphertextTuple(c, OmemoElement.TYPE_OMEMO_MESSAGE);
        assertFalse(c2.isPreKeyMessage());
        assertEquals(OmemoElement.TYPE_OMEMO_MESSAGE, c2.getMessageType());
    }

    @Test
    public void cipherAndAuthTagTest() throws NoSuchAlgorithmException, CryptoFailedException {
        byte[] key = OmemoMessageBuilder.generateKey(KEYTYPE, KEYLENGTH);
        byte[] iv = OmemoMessageBuilder.generateIv();
        byte[] authTag = OmemoMessageBuilder.generateIv();

        CipherAndAuthTag cat = new CipherAndAuthTag(key, iv, authTag, true);

        assertArrayEquals(key, cat.getKey());
        assertArrayEquals(iv, cat.getIv());
        assertArrayEquals(authTag, cat.getAuthTag());
        assertTrue(cat.wasPreKeyEncrypted());
    }
}