Test the new, Java-compatible (de)serialization

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

test/Serialize.java

@@ -0,0 +1,116 @@
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.io.Serializable;
+
+public class Serialize implements Serializable {
+  public static final long serialVersionUID = 1l;
+  public int dummy = 0x12345678;
+  private static void expect(boolean v) {
+    if (! v) throw new RuntimeException();
+  }
+
+  private static void expectEqual(boolean a, boolean b) {
+	  expect(a == b);
+  }
+
+  private static void expectEqual(int a, int b) {
+	  expect(a == b);
+  }
+
+  private static void expectEqual(String a, String b) {
+	  expect(a.equals(b));
+  }
+
+  protected static void hexdump(byte[] a) {
+    for (int i = 0; i < a.length; i++) {
+      if ((i & 0xf) == 0) {
+        System.err.println();
+      }
+      String hex = Integer.toHexString(a[i] & 0xff);
+      System.err.print(" " + (hex.length() == 1 ? "0" : "") + hex);
+    }
+    System.err.println();
+  }
+
+  private static void expectEqual(byte[] a, int[] b) {
+    expect(a.length == b.length);
+
+    for (int i = 0; i < a.length; ++i) {
+      expect(a[i] == (byte)b[i]);
+    }
+  }
+
+  public static void main(String[] args) throws Exception {
+    ByteArrayOutputStream out = new ByteArrayOutputStream();
+    ObjectOutputStream out2 = new ObjectOutputStream(out);
+    out2.writeBoolean(true);
+    out2.flush();
+    out2.writeByte(17);
+    out2.flush();
+    out2.writeInt(0xcafebabe);
+    out2.flush();
+    out2.writeUTF("Max & Möritz");
+    out2.flush();
+    out2.writeChar('ɛ');
+    out2.flush();
+    out2.writeObject(new Serialize());
+    out2.close();
+    byte[] array = out.toByteArray();
+    expectEqual(array, new int[] {
+      // magic
+      0xac, 0xed,
+      // version
+      0x00, 0x05,
+      // blockdata, length
+      0x77, 0x1,
+      // true
+      1,
+      // blockdata, length
+      0x77, 0x1,
+      // (byte)17
+      17,
+      // blockdata, length
+      0x77, 0x4,
+      // 0xcafebabe
+      0xca, 0xfe, 0xba, 0xbe,
+      // blockdata, length
+      0x77, 0xf,
+      // "Max & Möritz"
+      0x0, 0xd, 'M', 'a', 'x', ' ', '&', ' ', 'M', 0xc3, 0xb6, 'r', 'i', 't', 'z',
+      // blockdata, length
+      0x77, 0x2,
+      // 'ö'
+      0x02, 0x5b,
+      // object
+      0x73,
+      // class desc, "Serialize"
+      0x72, 0, 9, 'S', 'e', 'r', 'i', 'a', 'l', 'i', 'z', 'e',
+      // serialVersionUID
+      0, 0, 0, 0, 0, 0, 0, 1,
+      // flags (SC_SERIALIZABLE)
+      2,
+      // field count
+      0x0, 0x1,
+      // int dummy
+      'I', 0x0, 0x5, 'd', 'u', 'm', 'm', 'y',
+      // class annotation
+      0x78,
+      // super class desc
+      0x70,
+      // classdata[]
+      0x12, 0x34, 0x56, 0x78
+    });
+    ByteArrayInputStream in = new ByteArrayInputStream(array);
+    ObjectInputStream in2 = new ObjectInputStream(in);
+    expectEqual(true, in2.readBoolean());
+    expectEqual(17, in2.readByte());
+    expectEqual(0xcafebabe, in2.readInt());
+    expectEqual("Max & Möritz", in2.readUTF());
+    expectEqual('ɛ', in2.readChar());
+    Serialize unserialized = (Serialize) in2.readObject();
+    expectEqual(0x12345678, unserialized.dummy);
+    in2.close();
+  }
+}