package com.twelvemonkeys.io.ole2;
import com.twelvemonkeys.io.MemoryCacheSeekableStream;
import org.junit.Test;
import javax.imageio.stream.MemoryCacheImageInputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.net.URISyntaxException;
import java.net.URL;
import java.nio.ByteOrder;
import java.util.SortedSet;
import java.util.TreeSet;
import static org.junit.Assert.*;
/**
* CompoundDocumentTestCase
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: //depot/branches/personal/haraldk/twelvemonkeys/release-2/twelvemonkeys-core/src/test/java/com/twelvemonkeys/io/ole2/CompoundDocumentTestCase.java#1 $
*/
public class CompoundDocumentTestCase {
private static final String SAMPLE_DATA = "/Thumbs-camera.db";
protected final CompoundDocument createTestDocument() throws IOException {
URL input = getClass().getResource(SAMPLE_DATA);
assertNotNull("Missing test resource!", input);
assertEquals("Test resource not a file:// resource", "file", input.getProtocol());
try {
return new CompoundDocument(new File(input.toURI()));
}
catch (URISyntaxException e) {
throw new AssertionError(e);
}
}
@Test
public void testRoot() throws IOException {
CompoundDocument document = createTestDocument();
Entry root = document.getRootEntry();
assertNotNull(root);
assertEquals("Root Entry", root.getName());
assertTrue(root.isRoot());
assertFalse(root.isFile());
assertFalse(root.isDirectory());
assertEquals(0, root.length());
assertNull(root.getInputStream());
}
@Test
public void testContents() throws IOException {
CompoundDocument document = createTestDocument();
Entry root = document.getRootEntry();
assertNotNull(root);
SortedSet<Entry> children = new TreeSet<Entry>(root.getChildEntries());
assertEquals(25, children.size());
// Weirdness in the file format, name is *written backwards* 1-24 + Catalog
for (String name : "1,2,3,4,5,6,7,8,9,01,02,11,12,21,22,31,32,41,42,51,61,71,81,91,Catalog".split(",")) {
assertEquals(name, children.first().getName());
children.remove(children.first());
}
}
@Test(expected = UnsupportedOperationException.class)
public void testChildEntriesUnmodifiable() throws IOException {
CompoundDocument document = createTestDocument();
Entry root = document.getRootEntry();
assertNotNull(root);
SortedSet<Entry> children = root.getChildEntries();
// Should not be allowed, as it modifies the internal structure
children.remove(children.first());
}
@Test
public void testReadThumbsCatalogFile() throws IOException {
CompoundDocument document = createTestDocument();
Entry root = document.getRootEntry();
assertNotNull(root);
assertEquals(25, root.getChildEntries().size());
Entry catalog = root.getChildEntry("Catalog");
assertNotNull(catalog);
assertNotNull("Input stream may not be null", catalog.getInputStream());
}
@Test
public void testReadCatalogInputStream() throws IOException {
InputStream input = getClass().getResourceAsStream(SAMPLE_DATA);
assertNotNull("Missing test resource!", input);
CompoundDocument document = new CompoundDocument(input);
Entry root = document.getRootEntry();
assertNotNull(root);
assertEquals(25, root.getChildEntries().size());
Entry catalog = root.getChildEntry("Catalog");
assertNotNull(catalog);
assertNotNull("Input stream may not be null", catalog.getInputStream());
}
@Test
public void testReadCatalogSeekableStream() throws IOException {
InputStream input = getClass().getResourceAsStream(SAMPLE_DATA);
assertNotNull("Missing test resource!", input);
CompoundDocument document = new CompoundDocument(new MemoryCacheSeekableStream(input));
Entry root = document.getRootEntry();
assertNotNull(root);
assertEquals(25, root.getChildEntries().size());
Entry catalog = root.getChildEntry("Catalog");
assertNotNull(catalog);
assertNotNull("Input stream may not be null", catalog.getInputStream());
}
@Test
public void testReadCatalogImageInputStream() throws IOException {
InputStream input = getClass().getResourceAsStream(SAMPLE_DATA);
assertNotNull("Missing test resource!", input);
MemoryCacheImageInputStream stream = new MemoryCacheImageInputStream(input);
stream.setByteOrder(ByteOrder.LITTLE_ENDIAN);
CompoundDocument document = new CompoundDocument(stream);
Entry root = document.getRootEntry();
assertNotNull(root);
assertEquals(25, root.getChildEntries().size());
Entry catalog = root.getChildEntry("Catalog");
assertNotNull(catalog);
assertNotNull("Input stream may not be null", catalog.getInputStream());
}
}