From 92d37694970963ad6d0d5fbf4ec811630a58df90 Mon Sep 17 00:00:00 2001
From: Robin Rosenberg <robin.rosenberg@dewire.com>
Date: Sat, 18 Apr 2009 16:15:28 +0200
Subject: [EGIT PATCH 2/4] Add test cases dedicated to the WindowCache

---
 .../tst/org/spearce/jgit/lib/WindowCacheTest.java  |   72 ++++++++++++++++++++
 1 files changed, 72 insertions(+), 0 deletions(-)
 create mode 100644 org.spearce.jgit.test/tst/org/spearce/jgit/lib/WindowCacheTest.java

diff --git a/org.spearce.jgit.test/tst/org/spearce/jgit/lib/WindowCacheTest.java b/org.spearce.jgit.test/tst/org/spearce/jgit/lib/WindowCacheTest.java
new file mode 100644
index 0000000..a438d46
--- /dev/null
+++ b/org.spearce.jgit.test/tst/org/spearce/jgit/lib/WindowCacheTest.java
@@ -0,0 +1,72 @@
+package org.spearce.jgit.lib;
+
+import java.io.ByteArrayInputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+
+import org.spearce.jgit.errors.IncorrectObjectTypeException;
+import org.spearce.jgit.errors.MissingObjectException;
+import org.spearce.jgit.revwalk.RevObject;
+import org.spearce.jgit.revwalk.RevWalk;
+
+public class WindowCacheTest extends RepositoryTestCase {
+
+	public void setUp() throws Exception {
+		WindowCacheConfig windowCacheConfig = new WindowCacheConfig();
+		windowCacheConfig.setPackedGitOpenFiles(1);
+		WindowCache.reconfigure(windowCacheConfig);
+		super.setUp();
+	}
+
+	protected void tearDown() throws Exception {
+		super.tearDown();
+		WindowCacheConfig windowCacheConfig = new WindowCacheConfig();
+		WindowCache.reconfigure(windowCacheConfig);
+	}
+
+	/*
+	 * Add pack, find objects in new pack Replace packs, find objects in another
+	 * pack than original, don't choke on lost pack
+	 */
+	public void testObjectInNewPack() throws IncorrectObjectTypeException,
+			IOException {
+		Repository extra = createNewEmptyRepo();
+		RevObject o1 = writeBlob(extra, db,
+				"nihuioijoisuoiudyosyudoiuyusyuoiyewData");
+		PackWriter packWriter = new PackWriter(extra, new TextProgressMonitor());
+		packWriter.addObject(o1);
+		ObjectId name = packWriter.computeName();
+		File packFileName = fullPackFileName(db, name, ".pack");
+		FileOutputStream pos = new FileOutputStream(packFileName);
+		packWriter.writePack(pos);
+		pos.close();
+		File idxfname = fullPackFileName(db, name, ".idx");
+		FileOutputStream ios = new FileOutputStream(idxfname);
+		packWriter.writeIndex(ios);
+		ios.close();
+		assertEquals(o1.name(), new RevWalk(db).parseAny(o1).name());
+	}
+
+	private File fullPackFileName(Repository repository, ObjectId hash,
+			String suffix) {
+		return new File(new File(repository.getObjectsDirectory(), "pack"),
+				"pack-" + hash.name() + suffix);
+	}
+
+	private RevObject writeBlob(final Repository repo, final Repository notIn,
+			final String data) throws IOException {
+		RevWalk revWalk = new RevWalk(repo);
+		byte[] bytes = data.getBytes(Constants.CHARACTER_ENCODING);
+		ObjectId id = new ObjectWriter(repo).writeBlob(bytes.length,
+				new ByteArrayInputStream(bytes));
+		try {
+			assertNull(
+					"Oops, We want new objects that we do not have yet, for this test!",
+					new RevWalk(notIn).parseAny(id));
+		} catch (MissingObjectException e) {
+			// Ok
+		}
+		return revWalk.lookupBlob(id);
+	}
+}
-- 
1.6.2.2.446.gfbdc0