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282 lines
8.1 KiB
282 lines
8.1 KiB
/* |
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* Copyright (C) 2010, Google Inc. |
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* and other copyright owners as documented in the project's IP log. |
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* |
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* This program and the accompanying materials are made available |
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* under the terms of the Eclipse Distribution License v1.0 which |
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* accompanies this distribution, is reproduced below, and is |
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* available at http://www.eclipse.org/org/documents/edl-v10.php |
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* |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or |
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* without modification, are permitted provided that the following |
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* conditions are met: |
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* |
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* - Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* - Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer in the documentation and/or other materials provided |
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* with the distribution. |
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* |
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* - Neither the name of the Eclipse Foundation, Inc. nor the |
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* names of its contributors may be used to endorse or promote |
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* products derived from this software without specific prior |
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* written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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package org.eclipse.jgit.lib; |
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import static org.eclipse.jgit.lib.Constants.OBJ_BLOB; |
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import static org.junit.Assert.assertEquals; |
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import static org.junit.Assert.assertFalse; |
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import static org.junit.Assert.assertNotNull; |
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import static org.junit.Assert.assertNotSame; |
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import static org.junit.Assert.assertSame; |
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import static org.junit.Assert.assertTrue; |
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import static org.junit.Assert.fail; |
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import java.io.ByteArrayInputStream; |
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import java.io.ByteArrayOutputStream; |
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import java.io.IOException; |
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import java.util.Arrays; |
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import org.eclipse.jgit.errors.LargeObjectException; |
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import org.eclipse.jgit.errors.MissingObjectException; |
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import org.eclipse.jgit.junit.JGitTestUtil; |
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import org.eclipse.jgit.junit.TestRng; |
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import org.junit.Test; |
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public class ObjectLoaderTest { |
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private TestRng rng; |
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private TestRng getRng() { |
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if (rng == null) |
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rng = new TestRng(JGitTestUtil.getName()); |
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return rng; |
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} |
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@Test |
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public void testSmallObjectLoader() throws MissingObjectException, |
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IOException { |
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final byte[] act = getRng().nextBytes(512); |
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final ObjectLoader ldr = new ObjectLoader.SmallObject(OBJ_BLOB, act); |
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assertEquals(OBJ_BLOB, ldr.getType()); |
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assertEquals(act.length, ldr.getSize()); |
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assertFalse("not is large", ldr.isLarge()); |
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assertSame(act, ldr.getCachedBytes()); |
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assertSame(act, ldr.getCachedBytes(1)); |
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assertSame(act, ldr.getCachedBytes(Integer.MAX_VALUE)); |
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byte[] copy = ldr.getBytes(); |
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assertNotSame(act, copy); |
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assertTrue("same content", Arrays.equals(act, copy)); |
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copy = ldr.getBytes(1); |
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assertNotSame(act, copy); |
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assertTrue("same content", Arrays.equals(act, copy)); |
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copy = ldr.getBytes(Integer.MAX_VALUE); |
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assertNotSame(act, copy); |
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assertTrue("same content", Arrays.equals(act, copy)); |
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ObjectStream in = ldr.openStream(); |
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assertNotNull("has stream", in); |
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assertTrue("is small stream", in instanceof ObjectStream.SmallStream); |
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assertEquals(OBJ_BLOB, in.getType()); |
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assertEquals(act.length, in.getSize()); |
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assertEquals(act.length, in.available()); |
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assertTrue("mark supported", in.markSupported()); |
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copy = new byte[act.length]; |
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assertEquals(act.length, in.read(copy)); |
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assertEquals(0, in.available()); |
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assertEquals(-1, in.read()); |
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assertTrue("same content", Arrays.equals(act, copy)); |
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ByteArrayOutputStream tmp = new ByteArrayOutputStream(); |
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ldr.copyTo(tmp); |
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assertTrue("same content", Arrays.equals(act, tmp.toByteArray())); |
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} |
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@Test |
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public void testLargeObjectLoader() throws MissingObjectException, |
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IOException { |
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final byte[] act = getRng().nextBytes(512); |
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final ObjectLoader ldr = new ObjectLoader() { |
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@Override |
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public byte[] getCachedBytes() throws LargeObjectException { |
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throw new LargeObjectException(); |
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} |
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@Override |
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public long getSize() { |
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return act.length; |
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} |
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@Override |
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public int getType() { |
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return OBJ_BLOB; |
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} |
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@Override |
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public ObjectStream openStream() throws MissingObjectException, |
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IOException { |
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return new ObjectStream.Filter(getType(), act.length, |
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new ByteArrayInputStream(act)); |
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} |
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}; |
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assertEquals(OBJ_BLOB, ldr.getType()); |
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assertEquals(act.length, ldr.getSize()); |
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assertTrue("is large", ldr.isLarge()); |
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try { |
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ldr.getCachedBytes(); |
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fail("did not throw on getCachedBytes()"); |
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} catch (LargeObjectException tooBig) { |
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// expected |
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} |
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try { |
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ldr.getBytes(); |
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fail("did not throw on getBytes()"); |
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} catch (LargeObjectException tooBig) { |
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// expected |
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} |
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try { |
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ldr.getCachedBytes(64); |
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fail("did not throw on getCachedBytes(64)"); |
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} catch (LargeObjectException tooBig) { |
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// expected |
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} |
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byte[] copy = ldr.getCachedBytes(1024); |
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assertNotSame(act, copy); |
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assertTrue("same content", Arrays.equals(act, copy)); |
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ObjectStream in = ldr.openStream(); |
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assertNotNull("has stream", in); |
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assertEquals(OBJ_BLOB, in.getType()); |
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assertEquals(act.length, in.getSize()); |
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assertEquals(act.length, in.available()); |
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assertTrue("mark supported", in.markSupported()); |
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copy = new byte[act.length]; |
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assertEquals(act.length, in.read(copy)); |
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assertEquals(0, in.available()); |
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assertEquals(-1, in.read()); |
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assertTrue("same content", Arrays.equals(act, copy)); |
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ByteArrayOutputStream tmp = new ByteArrayOutputStream(); |
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ldr.copyTo(tmp); |
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assertTrue("same content", Arrays.equals(act, tmp.toByteArray())); |
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} |
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@Test |
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public void testLimitedGetCachedBytes() throws LargeObjectException, |
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MissingObjectException, IOException { |
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byte[] act = getRng().nextBytes(512); |
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ObjectLoader ldr = new ObjectLoader.SmallObject(OBJ_BLOB, act) { |
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@Override |
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public boolean isLarge() { |
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return true; |
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} |
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}; |
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assertTrue("is large", ldr.isLarge()); |
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try { |
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ldr.getCachedBytes(10); |
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fail("Did not throw LargeObjectException"); |
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} catch (LargeObjectException tooBig) { |
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// Expected result. |
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} |
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byte[] copy = ldr.getCachedBytes(512); |
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assertNotSame(act, copy); |
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assertTrue("same content", Arrays.equals(act, copy)); |
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copy = ldr.getCachedBytes(1024); |
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assertNotSame(act, copy); |
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assertTrue("same content", Arrays.equals(act, copy)); |
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} |
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@Test |
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public void testLimitedGetCachedBytesExceedsJavaLimits() |
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throws LargeObjectException, MissingObjectException, IOException { |
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ObjectLoader ldr = new ObjectLoader() { |
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@Override |
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public boolean isLarge() { |
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return true; |
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} |
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@Override |
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public byte[] getCachedBytes() throws LargeObjectException { |
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throw new LargeObjectException(); |
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} |
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@Override |
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public long getSize() { |
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return Long.MAX_VALUE; |
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} |
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@Override |
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public int getType() { |
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return OBJ_BLOB; |
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} |
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@Override |
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public ObjectStream openStream() throws MissingObjectException, |
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IOException { |
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return new ObjectStream() { |
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@Override |
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public long getSize() { |
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return Long.MAX_VALUE; |
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} |
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@Override |
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public int getType() { |
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return OBJ_BLOB; |
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} |
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@Override |
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public int read() throws IOException { |
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fail("never should have reached read"); |
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return -1; |
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} |
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}; |
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} |
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}; |
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assertTrue("is large", ldr.isLarge()); |
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try { |
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ldr.getCachedBytes(10); |
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fail("Did not throw LargeObjectException"); |
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} catch (LargeObjectException tooBig) { |
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// Expected result. |
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} |
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try { |
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ldr.getCachedBytes(Integer.MAX_VALUE); |
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fail("Did not throw LargeObjectException"); |
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} catch (LargeObjectException tooBig) { |
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// Expected result. |
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} |
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} |
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}
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