src/test/java/org/apache/pdfbox/jbig2/decoder/arithmetic/ArithmeticIntegerDecoderTest.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.pdfbox.jbig2.decoder.arithmetic;

import java.io.InputStream;

import javax.imageio.stream.ImageInputStream;

import junit.framework.Assert;

import org.apache.pdfbox.jbig2.decoder.arithmetic.ArithmeticDecoder;
import org.apache.pdfbox.jbig2.decoder.arithmetic.ArithmeticIntegerDecoder;
import org.apache.pdfbox.jbig2.io.DefaultInputStreamFactory;
import org.junit.Test;

public class ArithmeticIntegerDecoderTest {

  @Test
  public void decodeTest() throws Throwable {
    InputStream is = getClass().getResourceAsStream("/images/arith/encoded testsequence");
    DefaultInputStreamFactory isFactory = new DefaultInputStreamFactory();
    ImageInputStream iis = isFactory.getInputStream(is);

    ArithmeticDecoder ad = new ArithmeticDecoder(iis);
    ArithmeticIntegerDecoder aid = new ArithmeticIntegerDecoder(ad);

    long result = aid.decode(null);

    Assert.assertEquals(1, result);
  }
}