1 files changed, 84 insertions, 0 deletions
diff --git a/framework/src/onos/protocols/openflow/ctl/src/test/java/org/onosproject/openflow/controller/impl/OFMessageDecoderTest.java b/framework/src/onos/protocols/openflow/ctl/src/test/java/org/onosproject/openflow/controller/impl/OFMessageDecoderTest.java
new file mode 100644
index 00000000..ed1db238
--- /dev/null
+++ b/framework/src/onos/protocols/openflow/ctl/src/test/java/org/onosproject/openflow/controller/impl/OFMessageDecoderTest.java
@@ -0,0 +1,84 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed 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.onosproject.openflow.controller.impl;
+
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.jboss.netty.buffer.ChannelBuffers;
+import org.junit.Test;
+import org.onosproject.openflow.ChannelAdapter;
+import org.onosproject.openflow.ChannelHandlerContextAdapter;
+import org.projectfloodlight.openflow.protocol.OFHello;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.instanceOf;
+import static org.hamcrest.Matchers.notNullValue;
+import static org.hamcrest.Matchers.nullValue;
+
+/**
+ * Tests for the OpenFlow message decoder.
+ */
+public class OFMessageDecoderTest {
+
+    static class ConnectedChannel extends ChannelAdapter {
+        @Override
+        public boolean isConnected() {
+            return true;
+        }
+    }
+
+    private ChannelBuffer getHelloMessageBuffer() {
+        // OFHello, OF version 1, xid of 0, total of 8 bytes
+        byte[] messageData = {0x1, 0x0, 0x0, 0x8, 0x0, 0x0, 0x0, 0x0};
+        ChannelBuffer channelBuffer = ChannelBuffers.dynamicBuffer();
+        channelBuffer.writeBytes(messageData);
+        return channelBuffer;
+    }
+
+    /**
+     * Tests decoding a message on a closed channel.
+     *
+     * @throws Exception when an exception is thrown from the decoder
+     */
+    @Test
+    public void testDecodeNoChannel() throws Exception {
+        OFMessageDecoder decoder = new OFMessageDecoder();
+        ChannelBuffer channelBuffer = getHelloMessageBuffer();
+        Object message =
+                decoder.decode(new ChannelHandlerContextAdapter(),
+                               new ChannelAdapter(),
+                               channelBuffer);
+        assertThat(message, nullValue());
+    }
+
+    /**
+     * Tests decoding a message.
+     *
+     * @throws Exception when an exception is thrown from the decoder
+     */
+    @Test
+    public void testDecode() throws Exception {
+        OFMessageDecoder decoder = new OFMessageDecoder();
+        ChannelBuffer channelBuffer = getHelloMessageBuffer();
+        Object message =
+                decoder.decode(new ChannelHandlerContextAdapter(),
+                               new ConnectedChannel(),
+                               channelBuffer);
+        assertThat(message, notNullValue());
+        assertThat(message, instanceOf(OFHello.class));
+    }
+
+}