Add DataPduTest unit test

src/test/java/edu/nps/moves/dis/DataPduTest.java

@@ -0,0 +1,60 @@
+package edu.nps.moves.dis;
+
+import edu.nps.moves.disutil.PduFactory;
+import java.io.IOException;
+import org.junit.Test;
+import static org.junit.Assert.*;
+
+public class DataPduTest {
+
+    @Test
+    public void unmarshal() throws IOException {
+        PduFactory factory = new PduFactory();
+        Pdu pdu = factory.createPdu(PduFileLoader.load("DataPdu-vbs-script-cmd.raw"));
+
+        // Expected field values were determined from Wireshark: Decode As -> DIS.
+        assertEquals(6, pdu.getProtocolVersion());
+        assertEquals(1, pdu.getExerciseID());
+        assertEquals(20, pdu.getPduType());
+        assertEquals(5, pdu.getProtocolFamily());
+        assertEquals(0, pdu.getTimestamp());
+        assertEquals(296, pdu.getLength());
+        assertEquals(0, pdu.getPadding());
+
+        DataPdu sdpdu = (DataPdu) pdu;
+
+        assertEquals(0, sdpdu.getOriginatingEntityID().getSite());
+        assertEquals(0, sdpdu.getOriginatingEntityID().getApplication());
+        assertEquals(0, sdpdu.getOriginatingEntityID().getEntity());
+
+        assertEquals(0, sdpdu.getReceivingEntityID().getSite());
+        assertEquals(0, sdpdu.getReceivingEntityID().getApplication());
+        assertEquals(0, sdpdu.getReceivingEntityID().getEntity());
+
+        assertEquals(9, sdpdu.getRequestID());
+
+        assertEquals(0, sdpdu.getPadding());
+
+        assertEquals(0, sdpdu.getNumberOfFixedDatumRecords());
+        assertEquals(1, sdpdu.getNumberOfVariableDatumRecords());
+
+        VariableDatum vd = sdpdu.getVariableDatums().remove(0);
+        assertEquals(1, vd.getVariableDatumID());
+        assertEquals(1976, vd.getVariableDatumLength());
+
+        byte[] datumValue = new byte[(int) vd.getVariableData().size()];
+        for (int i = 0; i < vd.getVariableData().size(); i++) {
+            datumValue[i] = vd.getVariableData().get(i).getOtherParameters()[0];
+        }
+        assertEquals("[UAV2_PAYLOAD,UAV2_PLANNER,unit_7,UAV1_PLANNER,UAV1_PAYLOAD,unit_3,B 1-1-C-4:1,B 1-1-C-4:2,B 1-1-C-4:3,B 1-1-C-5:1,B 1-1-C-5:2,B 1-1-C-5:3,B 1-1-C-6:1,B 1-1-C-6:2,B 1-1-C-6:3,B 1-1-A-4:1,B 1-1-A-9:1,B 1-1-A-5:1,B 1-1-B-4:1,B 1-1-A-6:1,B 1-1-A-6:2]", new String(datumValue));
+    }
+
+    @Test
+    public void marshal() {
+        SetDataPdu sdpdu = new SetDataPdu();
+
+        byte[] buffer = sdpdu.marshal();
+
+        assertEquals(buffer.length, sdpdu.getLength());
+    }
+}