QPID-6000 : [Java Broker] [Java Client] add the ability to configure automatic message compression

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1618375 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 102 insertions, 0 deletions

diff --git a/qpid/java/common/src/test/java/org/apache/qpid/util/GZIPUtilsTest.java b/qpid/java/common/src/test/java/org/apache/qpid/util/GZIPUtilsTest.java
new file mode 100644
index 0000000000..60e80da15f
--- /dev/null
+++ b/qpid/java/common/src/test/java/org/apache/qpid/util/GZIPUtilsTest.java
@@ -0,0 +1,102 @@
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+package org.apache.qpid.util;
+
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.ByteBuffer;
+import java.util.Arrays;
+
+import junit.framework.TestCase;
+
+public class GZIPUtilsTest extends TestCase
+{
+    public void testCompressUncompress() throws Exception
+    {
+        byte[] data = new byte[1024];
+        Arrays.fill(data, (byte)'a');
+        byte[] compressed = GZIPUtils.compressBufferToArray(ByteBuffer.wrap(data));
+        assertTrue("Compression didn't compress", compressed.length < data.length);
+        byte[] uncompressed = GZIPUtils.uncompressBufferToArray(ByteBuffer.wrap(compressed));
+        assertTrue("Compression not reversible", Arrays.equals(data,uncompressed));
+    }
+
+    public void testUncompressNonZipReturnsNull() throws Exception
+    {
+        byte[] data = new byte[1024];
+        Arrays.fill(data, (byte)'a');
+        assertNull("Non zipped data should not uncompress", GZIPUtils.uncompressBufferToArray(ByteBuffer.wrap(data)));
+    }
+
+    public void testUncompressStreamWithErrorReturnsNull() throws Exception
+    {
+        InputStream is = new InputStream()
+        {
+            @Override
+            public int read() throws IOException
+            {
+                throw new IOException();
+            }
+        };
+        assertNull("Stream error should return null", GZIPUtils.uncompressStreamToArray(is));
+    }
+
+
+    public void testUncompressNullStreamReturnsNull() throws Exception
+    {
+        assertNull("Null Stream should return null", GZIPUtils.uncompressStreamToArray(null));
+    }
+    public void testUncompressNullBufferReturnsNull() throws Exception
+    {
+        assertNull("Null buffer should return null", GZIPUtils.uncompressBufferToArray(null));
+    }
+
+    public void testCompressNullArrayReturnsNull()
+    {
+        assertNull(GZIPUtils.compressBufferToArray(null));
+    }
+
+    public void testNonHeapBuffers() throws Exception
+    {
+
+        byte[] data = new byte[1024];
+        Arrays.fill(data, (byte)'a');
+        ByteBuffer directBuffer = ByteBuffer.allocateDirect(1024);
+        directBuffer.put(data);
+        directBuffer.flip();
+
+        byte[] compressed = GZIPUtils.compressBufferToArray(directBuffer);
+
+        assertTrue("Compression didn't compress", compressed.length < data.length);
+
+        directBuffer.clear();
+        directBuffer.position(1);
+        directBuffer = directBuffer.slice();
+        directBuffer.put(compressed);
+        directBuffer.flip();
+
+        byte[] uncompressed = GZIPUtils.uncompressBufferToArray(directBuffer);
+
+        assertTrue("Compression not reversible", Arrays.equals(data,uncompressed));
+
+    }
+}