Moq返回一个集合，其中至少有一个假对象

Question

如何返回一个对象列表，列表中至少有一个假对象

我尝试了以下内容：

    FacadeMock.Setup(x => x.GetCost(It.IsAny<IContact>()))
        .Returns(() => new List<ICost>().Add(new Mock<ICost>().Object));

但它不起作用 感谢

Answer 1

将lambda的表达式替换为语句块，如下面的代码所示：

FacadeMock.Setup(x => x.GetCost(It.IsAny<IContact>()))
    .Returns(() => {
        var myList = new List<ICost>();
        myList.Add(new Mock<ICost>().Object)

        // Create your real object here as much as you want 
        // and use myList.Add to add them to your colllection.

        return myList;
    }
);

Answer 2

想出来：

        FacadeMock.Setup(x => x.GetCost(It.IsAny<IContact>()))
            .Returns(() => new List<ICost>{ new Mock<ICost>().Object });