/*
* JBoss DNA (http://www.jboss.org/dna)
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
* See the AUTHORS.txt file in the distribution for a full listing of
* individual contributors.
*
* JBoss DNA is free software. Unless otherwise indicated, all code in JBoss DNA
* is licensed to you under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* JBoss DNA is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.dna.graph.property.basic;
import static org.jboss.dna.graph.property.basic.BinaryContains.hasContent;
import static org.jboss.dna.graph.property.basic.BinaryContains.hasNoContent;
import static org.hamcrest.core.Is.is;
import static org.junit.Assert.assertThat;
import java.io.IOException;
import java.io.InputStream;
import org.jboss.dna.common.util.IoUtil;
import org.jboss.dna.common.util.StringUtil;
import org.jboss.dna.graph.property.Binary;
import org.jboss.dna.graph.property.basic.InMemoryBinary;
import org.junit.Before;
import org.junit.Test;
/**
* @author Randall Hauch
*/
public class InMemoryBinaryTest {
private byte[] validByteArrayContent;
private String validStringContent;
private InMemoryBinary binary;
/**
* @throws java.lang.Exception
*/
@Before
public void setUp() throws Exception {
validStringContent = "This is a valid string content";
validByteArrayContent = this.validStringContent.getBytes("UTF-8");
binary = new InMemoryBinary(validByteArrayContent);
}
@Test
public void shouldConstructFromByteArray() {
binary = new InMemoryBinary(validByteArrayContent);
assertThat(binary.getSize(), is((long)validByteArrayContent.length));
assertThat(binary, hasContent(validByteArrayContent));
}
@Test
public void shouldConstructFromEmptyByteArray() {
validByteArrayContent = new byte[0];
binary = new InMemoryBinary(validByteArrayContent);
assertThat(binary.getSize(), is(0l));
assertThat(binary, hasNoContent());
}
@Test( expected = IllegalArgumentException.class )
public void shouldNotConstructFromNullByteArray() {
new InMemoryBinary(null);
}
@Test
public void shouldHaveSizeThatMatchesContentLength() {
assertThat(binary.getSize(), is((long)validByteArrayContent.length));
}
@Test
public void shouldProvideInputStreamToContent() throws IOException {
InputStream stream = binary.getStream();
byte[] actual = IoUtil.readBytes(stream); // closes the stream
assertThat(actual.length, is(validByteArrayContent.length));
for (int i = 0, len = actual.length; i != len; ++i) {
assertThat(actual[i], is(validByteArrayContent[i]));
}
}
@Test
public void shouldConsiderEquivalentThoseInstancesWithSameContent() {
Binary another = new InMemoryBinary(validByteArrayContent);
assertThat(binary.equals(another), is(true));
assertThat(binary.compareTo(another), is(0));
assertThat(binary, is(another));
assertThat(binary, hasContent(validByteArrayContent));
assertThat(another, hasContent(validByteArrayContent));
}
@Test
public void shouldUseSizeWhenComparing() {
byte[] shorterContent = new byte[validByteArrayContent.length - 2];
for (int i = 0; i != shorterContent.length; ++i) {
shorterContent[i] = validByteArrayContent[i];
}
Binary another = new InMemoryBinary(shorterContent);
assertThat(binary.equals(another), is(false));
assertThat(binary.compareTo(another), is(1));
assertThat(another.compareTo(binary), is(-1));
assertThat(another, hasContent(shorterContent));
}
@Test
public void shouldComputeSha1HashOfEmptyContent() throws Exception {
validByteArrayContent = new byte[0];
binary = new InMemoryBinary(validByteArrayContent);
assertThat(binary.getSize(), is(0l));
assertThat(binary, hasNoContent());
byte[] hash = binary.getHash();
assertThat(hash.length, is(20));
assertThat(StringUtil.getHexString(hash), is("da39a3ee5e6b4b0d3255bfef95601890afd80709"));
}
@Test
public void shouldComputeSha1HashOfNonEmptyContent() throws Exception {
binary = new InMemoryBinary(validByteArrayContent);
assertThat(binary.getSize(), is((long)validByteArrayContent.length));
byte[] hash = binary.getHash();
assertThat(hash.length, is(20));
assertThat(StringUtil.getHexString(hash), is("14abe696257e85ba18b7c784d6c7855f46ce50ea"));
}
}