public void SetReadOnly_is_called_on_child_mapping_items()
        {
            var entityType = new EntityType("ET", "N", DataSpace.CSpace);
            var entitySet = new EntitySet("ES", "S", "T", "Q", entityType);
            var entityContainer = new EntityContainer("EC", DataSpace.SSpace);

            entityContainer.AddEntitySetBase(entitySet);

            var function = new EdmFunction("F", "N", DataSpace.SSpace, new EdmFunctionPayload());
            var parameterBindings
                = new[]
                  {
                      new ModificationFunctionParameterBinding(
                          new FunctionParameter(), 
                          new ModificationFunctionMemberPath(Enumerable.Empty<EdmMember>(), null),
                          true)
                  };
            var rowsAffectedParameter = new FunctionParameter("rows_affected", new TypeUsage(), ParameterMode.Out);

            var resultBindings
                = new[]
                  {
                      new ModificationFunctionResultBinding(
                          "C", 
                          EdmProperty.CreatePrimitive(
                              "P", PrimitiveType.GetEdmPrimitiveType(PrimitiveTypeKind.String)))
                  };

            var mapping
                = new ModificationFunctionMapping(
                    entitySet, entityType, function,
                    parameterBindings, rowsAffectedParameter, resultBindings);

            Assert.False(mapping.IsReadOnly);
            parameterBindings.Each(b => Assert.False(b.IsReadOnly));
            resultBindings.Each(b => Assert.False(b.IsReadOnly));
            mapping.SetReadOnly();
            Assert.True(mapping.IsReadOnly);
            parameterBindings.Each(b => Assert.True(b.IsReadOnly));
            resultBindings.Each(b => Assert.True(b.IsReadOnly));
        }