@Test
 public void appendBriefDescription() {
   ResolvedPrimitiveType primitiveType = new ResolvedPrimitiveType(boolean.class, 'Z', "boolean");
   StringBuilder buffer = new StringBuilder();
   StringBuilder returned = primitiveType.appendBriefDescription(buffer);
   assertSame(buffer, returned);
   assertEquals("boolean", returned.toString());
   buffer = new StringBuilder("something already ");
   returned = primitiveType.appendBriefDescription(buffer);
   assertSame(buffer, returned);
   assertEquals("something already boolean", returned.toString());
 }
 @Test
 public void appendErasedSignature() {
   ResolvedPrimitiveType primitiveType = new ResolvedPrimitiveType(boolean.class, 'Z', "boolean");
   StringBuilder buffer = new StringBuilder();
   StringBuilder returned = primitiveType.appendErasedSignature(buffer);
   assertSame(buffer, returned);
   assertEquals("Z", returned.toString());
   buffer = new StringBuilder("something already ");
   returned = primitiveType.appendErasedSignature(buffer);
   assertSame(buffer, returned);
   assertEquals("something already Z", returned.toString());
 }