NodeType type = propDef.getDeclaringNodeType();
assertTrue("NodeType.canRemoveItem(String itemName) must return true " +
"if itemName is not a protected nor a mandatory property def.",
type.canRemoveItem(propDef.getName()));
assertTrue("NodeType.canRemoveProperty(String propertyName) must return true " +
"if propertyName is not a protected nor a mandatory property def.",
type.canRemoveProperty(propDef.getName()));
}