component部分方法测试，出现首个byte为负数的情况

src/test/java/component/CongestionMarkTest.java

@@ -0,0 +1,68 @@
+package component;
+
+import encoding.*;
+import org.junit.Test;
+import packet.Interest;
+import packet.PacketException;
+
+import java.util.Arrays;
+
+import static org.junit.Assert.*;
+
+/*
+ * @Author: feng Zhao
+ * @Description:
+ * @Version: 1.0.0
+ * @Date: 15:47 2021/3/25
+ * @Copyright: MIN-Group；国家重大科技基础设施——未来网络北大实验室；深圳市信息论与未来网络重点实验室
+ */
+
+public class CongestionMarkTest {
+    int MaxPacketSize = 8800;
+    @Test
+    public void TestCongestionMark_GetCongestionLevel() {
+        CongestionMark congestionMark = new CongestionMark();
+        System.out.println("interest:"+congestionMark.getCongestionLevel());
+        congestionMark.setCongestionLevel(1248355635356896986L);
+        System.out.println("interest:"+congestionMark.getCongestionLevel());
+        System.out.println("interest:"+congestionMark.isInitial());
+    }
+
+    @Test
+    public void TestCongestionMark_WireEncode() throws EncoderException, ComponentException, BlockException {
+        CongestionMark congestionMark = new CongestionMark();
+        System.out.println("interest:"+congestionMark.getCongestionLevel());
+        congestionMark.setCongestionLevel(1248355635356896986L);
+        System.out.println("interest:"+congestionMark.getCongestionLevel());
+        System.out.println("interest:"+congestionMark.isInitial());
+
+        Encoder encoder = new Encoder();
+        encoder.encoderReset(new SizeT(MaxPacketSize), new SizeT(0));
+        congestionMark.wireEncode(encoder);
+        byte[] buf = encoder.getBuffer();
+        System.out.println("CongestionMark buf:"+ Arrays.toString(buf));
+        Block block = Block.createBlockByBuffer(buf, false);
+        System.out.println("CongestionMark block: "+block.getType()+","+block.getLength()+","+Arrays.toString(block.getValue()));
+    }
+
+    @Test
+    public void TestCongestionMark_WireDecode() throws EncoderException, ComponentException, BlockException, PacketException {
+        CongestionMark congestionMark = new CongestionMark();
+        System.out.println("interest:"+congestionMark.getCongestionLevel());
+        congestionMark.setCongestionLevel(1248355635356896986L);
+        System.out.println("interest:"+congestionMark.getCongestionLevel());
+        System.out.println("interest:"+congestionMark.isInitial());
+
+        Encoder encoder = new Encoder();
+        encoder.encoderReset(new SizeT(MaxPacketSize), new SizeT(0));
+        congestionMark.wireEncode(encoder);
+        byte[] buf = encoder.getBuffer();
+        System.out.println("CongestionMark buf:"+ Arrays.toString(buf));
+        Block block = Block.createBlockByBuffer(buf, false);
+        System.out.println("CongestionMark block: "+block.getType()+","+block.getLength()+","+Arrays.toString(block.getValue()));
+        InterestLifeTime interest1 = new InterestLifeTime();
+        interest1.wireDecode(block);
+        System.out.println("interest1:" + congestionMark.getCongestionLevel());
+        System.out.println("interest1:" + congestionMark.isInitial());
+    }
+}