@Test
 public void testCons1() {
   lwriter.writeCons(new Cons("", new Symbol("find-buffer-file-type-coding-system")));
   assertEquals("(\"\" . find-buffer-file-type-coding-system)", output.toString());
   reset();
   lwriter.writeUnknown(new Cons("", new Symbol("find-buffer-file-type-coding-system")));
   assertEquals("(\"\" . find-buffer-file-type-coding-system)", output.toString());
 }
 @Test
 public void testDouble1() {
   lwriter.writeDouble(10.1d);
   assertEquals("10.1", output.toString());
   reset();
   lwriter.writeUnknown(10.1d);
   assertEquals("10.1", output.toString());
 }
 @Test
 public void testInt1() {
   lwriter.writeInt(1010);
   assertEquals("1010", output.toString());
   reset();
   lwriter.writeUnknown(1010);
   assertEquals("1010", output.toString());
 }
 @Test
 public void testForm1() {
   List l = Arrays.asList(new Symbol("message"), "Hello %s", new Symbol("user-full-name"));
   lwriter.writeForm(l);
   assertEquals("(message \"Hello %s\" user-full-name)", output.toString());
   reset();
   lwriter.writeUnknown(l);
   assertEquals("'(message \"Hello %s\" user-full-name)", output.toString());
 }
 @Test
 public void testMapAlist() {
   Map<Object, Object> m = new LinkedHashMap<>();
   m.put("foo", new Symbol("bar"));
   m.put("baz", new Symbol("quux"));
   lwriter.writeAlist(m);
   assertEquals("'((\"foo\" . bar) (\"baz\" . quux))", output.toString());
   reset();
   lwriter.writeUnknown(m);
   assertEquals("'((\"foo\" . bar) (\"baz\" . quux))", output.toString());
 }
 @Test
 public void testQuoted1() {
   List l = new ArrayList();
   l.add(new Symbol("apply"));
   l.add(new Quoted(new Symbol("+")));
   l.add(1);
   l.add(2);
   List inner = new ArrayList();
   inner.add(3);
   inner.add(4);
   l.add(new Quoted(inner));
   lwriter.writeForm(l);
   assertEquals("(apply '+ 1 2 '(3 4))", output.toString());
   reset();
   lwriter.writeUnknown(l);
   assertEquals("'(apply '+ 1 2 '(3 4))", output.toString());
 }