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/*
* 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.
*/
/* $Id$ */
package org.apache.fop.pdf;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;
/**
* Tests the {@link FileIDGenerator} class.
*/
@RunWith(Parameterized.class)
public class FileIDGeneratorTestCase {
/** The generator under test. */
protected FileIDGenerator fileIDGenerator;
private TestGetter initializer;
@Parameters
public static Collection<TestGetter[]> getParameters() {
ArrayList<TestGetter[]> params = new ArrayList<TestGetter[]>();
params.add(new TestGetter[] { new RandomFileIDGeneratorTest() });
params.add(new TestGetter[] { new DigestFileIDGeneratorTest() });
return params;
}
public FileIDGeneratorTestCase(TestGetter initializer) {
this.initializer = initializer;
}
@Before
public void setUp() throws Exception {
fileIDGenerator = initializer.getSut();
}
/** Tests that the getOriginalFileID method generates valid output. */
@Test
public void testOriginal() {
byte[] fileID = fileIDGenerator.getOriginalFileID();
fileIDMustBeValid(fileID);
}
/** Tests that the getUpdatedFileID method generates valid output. */
@Test
public void testUpdated() {
byte[] fileID = fileIDGenerator.getUpdatedFileID();
fileIDMustBeValid(fileID);
}
private void fileIDMustBeValid(byte[] fileID) {
assertNotNull(fileID);
assertEquals(16, fileID.length);
}
/** Tests that multiple calls to getOriginalFileID method always return the same value. */
@Test
public void testOriginalMultipleCalls() {
byte[] fileID1 = fileIDGenerator.getUpdatedFileID();
byte[] fileID2 = fileIDGenerator.getUpdatedFileID();
assertTrue(Arrays.equals(fileID1, fileID2));
}
/** Tests that getUpdatedFileID returns the same value as getOriginalFileID. */
@Test
public void testUpdateEqualsOriginal() {
byte[] originalFileID = fileIDGenerator.getOriginalFileID();
byte[] updatedFileID = fileIDGenerator.getUpdatedFileID();
assertTrue(Arrays.equals(originalFileID, updatedFileID));
}
private static interface TestGetter {
FileIDGenerator getSut() throws Exception;
}
/**
* Tests the random file ID generator.
*/
private static class RandomFileIDGeneratorTest implements TestGetter {
public FileIDGenerator getSut() throws Exception {
return FileIDGenerator.getRandomFileIDGenerator();
}
}
/**
* Tests the file ID generator based on an MD5 digest.
*/
private static class DigestFileIDGeneratorTest implements TestGetter {
public FileIDGenerator getSut() throws Exception {
return FileIDGenerator.getDigestFileIDGenerator(
new PDFDocument("Apache FOP"));
}
}
}
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