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  package org.eclipse.jgit.dircache;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertNotNull;
  import static org.junit.Assert.assertSame;
  
  import org.eclipse.jgit.junit.RepositoryTestCase;
  import org.eclipse.jgit.lib.FileMode;
  import org.junit.Test;
  
  public class DirCacheFindTest extends RepositoryTestCase {
  	@Test
  	public void testEntriesWithin() throws Exception {
  		final DirCache dc = db.readDirCache();
  
  		final String[] paths = { "a-", "a/b", "a/c", "a/d", "a0b" };
  		final DirCacheEntry[] ents = new DirCacheEntry[paths.length];
  		for (int i = 0; i < paths.length; i++) {
  			ents[i] = new DirCacheEntry(paths[i]);
  			ents[i].setFileMode(FileMode.REGULAR_FILE);
  		}
  		final int aFirst = 1;
  		final int aLast = 3;
  
  		final DirCacheBuilder b = dc.builder();
  		for (int i = 0; i < ents.length; i++)
  			b.add(ents[i]);
  		b.finish();
  
  		assertEquals(paths.length, dc.getEntryCount());
  		for (int i = 0; i < ents.length; i++)
  			assertSame(ents[i], dc.getEntry(i));
  
  		{
  			final DirCacheEntry[] aContents = dc.getEntriesWithin("a");
  			assertNotNull(aContents);
  			assertEquals(aLast - aFirst + 1, aContents.length);
  			for (int i = aFirst, j = 0; i <= aLast; i++, j++)
  				assertSame(ents[i], aContents[j]);
  		}
  		{
  			final DirCacheEntry[] aContents = dc.getEntriesWithin("a/");
  			assertNotNull(aContents);
  			assertEquals(aLast - aFirst + 1, aContents.length);
  			for (int i = aFirst, j = 0; i <= aLast; i++, j++)
  				assertSame(ents[i], aContents[j]);
  		}
  		{
  			final DirCacheEntry[] aContents = dc.getEntriesWithin("");
  			assertNotNull(aContents);
  			assertEquals(ents.length, aContents.length);
  			for (int i = 0; i < ents.length; i++)
  				assertSame(ents[i], aContents[i]);
  		}
  
  		assertNotNull(dc.getEntriesWithin("a-"));
 		assertEquals(0, dc.getEntriesWithin("a-").length);
 
 		assertNotNull(dc.getEntriesWithin("a0b"));
 		assertEquals(0, dc.getEntriesWithin("a0b-").length);
 
 		assertNotNull(dc.getEntriesWithin("zoo"));
 		assertEquals(0, dc.getEntriesWithin("zoo-").length);
 	}
 }