jdk/test/com/sun/crypto/provider/Mac/EmptyByteBufferTest.java
changeset 28403 02b91a87c4dd
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/com/sun/crypto/provider/Mac/EmptyByteBufferTest.java	Tue Jan 13 14:26:34 2015 +0300
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 1998, 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import java.nio.ByteBuffer;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+import java.security.NoSuchProviderException;
+import javax.crypto.Mac;
+import javax.crypto.SecretKey;
+
+/**
+ * @test
+ * @bug 8048603
+ * @summary Checks if MAC algorithms work fine with empty buffer
+ * @author Alexander Fomin
+ * @build Utils
+ * @run main EmptyByteBufferTest
+ */
+public class EmptyByteBufferTest implements MacTest {
+
+    /**
+     * @param args the command line arguments
+     */
+    public static void main(String[] args) {
+        Utils.runTests(new EmptyByteBufferTest());
+    }
+
+    @Override
+    public void doTest(String alg) throws NoSuchAlgorithmException,
+            InvalidKeyException, NoSuchProviderException {
+        SecretKey key = Utils.getSecretKeySpec();
+
+        // instantiate Mac object and init it with a SecretKey
+        Mac mac = Mac.getInstance(alg, "SunJCE");
+        mac.init(key);
+
+        // prepare buffer
+        byte[] data = new byte[0];
+        ByteBuffer buf = ByteBuffer.wrap(data);
+
+        mac.update(buf);
+        mac.doFinal();
+    }
+
+}