fixing indexes makes test work

forgot my own rule: all parfait works in 1 based lists

test/interpreter/test_add.rb

@@ -38,7 +38,7 @@ class AddTest < MiniTest::Test
     ret = ticks(18)
     assert_equal Register::FunctionReturn ,  ret.class
 
-    object = @interpreter.object_for( ret.register )
+    object = @interpreter.get_register( ret.register )
     link = object.get_internal( ret.index )
 
     assert_equal Register::Label , link.class

test/parfait_ruby/test_layout.rb

@@ -71,6 +71,16 @@ class TestLayout < MiniTest::Test
     assert_equal layout.first , :layout
   end
 
+
+  def test_class_space
+    space = Register.machine.space
+    assert_equal Parfait::Space , space.class
+    layout = space.get_layout
+    assert_equal Parfait::Layout , layout.class
+    assert_equal 3 , layout.instance_names.get_length
+    assert_equal layout.object_class.class , Parfait::Class
+    assert_equal layout.object_class.name , :Space
+  end
   def test_attribute_set
     @mess.receiver = 55
     assert_equal 55 , @mess.receiver