some class field tests

test/compiler/statements/test_class.rb

@@ -20,5 +20,31 @@ HERE
     @expect =  [Label, SaveReturn,LoadConstant,Label,RegisterTransfer,GetSlot,FunctionReturn]
     check
   end
+
+  def test_class_field_value
+    @string_input = <<HERE
+class Object
+  field int boo = 1
+  int main()
+    return 1
+  end
+end
+HERE
+    @expect =  [Label, SaveReturn,LoadConstant,Label,RegisterTransfer,GetSlot,FunctionReturn]
+    assert_raises{check}
+  end
+
+  def test_class_field
+    @string_input = <<HERE
+class Object
+  field int boo
+  int main()
+    return self.boo
+  end
+end
+HERE
+    @expect =  [Label, SaveReturn,GetSlot,GetSlot,Label,RegisterTransfer,GetSlot,FunctionReturn]
+    check
+  end
 end
 end