TestConversions.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.catalina.util;

import java.io.IOException;

import static org.junit.Assert.assertEquals;
import org.junit.Test;

public class TestConversions {

    @Test
    public void testByteArrayToLong() throws IOException {
        assertEquals(0L, Conversions.byteArrayToLong(new byte[] { 0 }));
        assertEquals(1L, Conversions.byteArrayToLong(new byte[] { 1 }));
        assertEquals(0xFF, Conversions.byteArrayToLong(new byte[] { -1 }));
        assertEquals(0xFFFF,
                Conversions.byteArrayToLong(new byte[] { -1, -1 }));
        assertEquals(0xFFFFFF,
                Conversions.byteArrayToLong(new byte[] { -1, -1, -1 }));
    }

}