java: add TestPackUnpack for int

java/test/org/msgpack/TestPackUnpack.java

@@ -0,0 +1,52 @@
+package org.msgpack;
+
+import org.msgpack.*;
+import java.io.*;
+import java.util.*;
+
+import org.junit.Test;
+import static org.junit.Assert.*;
+
+public class TestPackUnpack {
+    public Object unpackOne(ByteArrayOutputStream out) {
+        ByteArrayInputStream in = new ByteArrayInputStream(out.toByteArray());
+        Unpacker upk = new Unpacker(in);
+        Iterator<Object> it = upk.iterator();
+        assertEquals(true, it.hasNext());
+        Object obj = it.next();
+        assertEquals(false, it.hasNext());
+        return obj;
+    }
+
+    @Test
+    public void testInt() throws Exception {
+        testInt(0);
+        testInt(-1);
+        testInt(1);
+        testInt(Integer.MIN_VALUE);
+        testInt(Integer.MAX_VALUE);
+        Random rand = new Random();
+        for (int i = 0; i < 1000; i++)
+            testInt(rand.nextInt());
+    }
+    public void testInt(int val) throws Exception {
+        ByteArrayOutputStream out = new ByteArrayOutputStream();
+        Packer pk = new Packer(out);
+        pk.pack(val);
+        Object obj = unpackOne(out);
+        int val2 = -1;
+        if (obj instanceof Byte)
+            val2 = ((Byte)obj).intValue();
+        else if (obj instanceof Integer)
+            val2 = ((Integer)obj).intValue();
+        else if (obj instanceof Short)
+            val2 = ((Short)obj).intValue();
+        else if (obj instanceof Long)
+            val2 = ((Long)obj).intValue();
+        else {
+            System.out.println("obj = " + obj.getClass());
+            assertTrue(false);
+        }
+        assertEquals(val, val2);
+    }
+};