BUG-1521 Increase test coverage of netconf-netty-util

[controller.git] / opendaylight / netconf / netconf-netty-util / src / test / java / org / opendaylight / controller / netconf / nettyutil / handler / ChunkedFramingMechanismEncoderTest.java

diff --git a/opendaylight/netconf/netconf-netty-util/src/test/java/org/opendaylight/controller/netconf/nettyutil/handler/ChunkedFramingMechanismEncoderTest.java b/opendaylight/netconf/netconf-netty-util/src/test/java/org/opendaylight/controller/netconf/nettyutil/handler/ChunkedFramingMechanismEncoderTest.java
new file mode 100644 (file)
index 0000000..9347512
--- /dev/null
+++ b/opendaylight/netconf/netconf-netty-util/src/test/java/org/opendaylight/controller/netconf/nettyutil/handler/ChunkedFramingMechanismEncoderTest.java
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+
+package org.opendaylight.controller.netconf.nettyutil.handler;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.Matchers.anyObject;
+import static org.mockito.Mockito.doAnswer;
+
+import com.google.common.collect.Lists;
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+import io.netty.channel.ChannelHandlerContext;
+import java.util.List;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.mockito.invocation.InvocationOnMock;
+import org.mockito.stubbing.Answer;
+import org.opendaylight.controller.netconf.util.messages.NetconfMessageConstants;
+
+public class ChunkedFramingMechanismEncoderTest {
+
+    private int chunkSize;
+    @Mock
+    private ChannelHandlerContext ctx;
+
+    @Before
+    public void setUp() throws Exception {
+        MockitoAnnotations.initMocks(this);
+        chunkSize = 256;
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void testIllegalSize() throws Exception {
+        new ChunkedFramingMechanismEncoder(10);
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void testIllegalSizeMax() throws Exception {
+        new ChunkedFramingMechanismEncoder(Integer.MAX_VALUE);
+    }
+
+    @Test
+    public void testEncode() throws Exception {
+        final List<ByteBuf> chunks = Lists.newArrayList();
+        doAnswer(new Answer() {
+            @Override
+            public Object answer(final InvocationOnMock invocation) throws Throwable {
+                chunks.add((ByteBuf) invocation.getArguments()[0]);
+                return null;
+            }
+        }).when(ctx).write(anyObject());
+
+        final ChunkedFramingMechanismEncoder encoder = new ChunkedFramingMechanismEncoder(chunkSize);
+        final int lastChunkSize = 20;
+        final ByteBuf src = Unpooled.wrappedBuffer(getByteArray(chunkSize * 4 + lastChunkSize));
+        final ByteBuf destination = Unpooled.buffer();
+        encoder.encode(ctx, src, destination);
+        assertEquals(4, chunks.size());
+
+        final int framingSize = "#256\n".getBytes().length + 1/* new line at end */;
+
+        for (final ByteBuf chunk : chunks) {
+            assertEquals(chunkSize + framingSize, chunk.readableBytes());
+        }
+
+        final int lastFramingSize = "#20\n".length() + NetconfMessageConstants.END_OF_CHUNK.length + 1/* new line at end */;
+        assertEquals(lastChunkSize + lastFramingSize, destination.readableBytes());
+    }
+
+    private byte[] getByteArray(final int size) {
+        final byte[] bytes = new byte[size];
+        for (int i = 0; i < size; i++) {
+            bytes[i] = 'a';
+        }
+        return bytes;
+    }
+}