Moq 无法实例化包含 lambda 表达式的服务

Question

我想用 Moq 模拟以下方法：

T GetOne(Expression<Func<T, bool>> expression);

在以下方法中调用：

public GetTCNotifyFCResponse GetTCNotifyFC(string operationNumber)
        {
            var response = new GetTCNotifyFCResponse { IsValid = false };

            try
            {
                var tcAbstract = _tcAbstractRepository
                    .GetOne(x => x.Operation.OperationNumber == operationNumber);

                if (tcAbstract == null)
                {
                    response.ErrorMessage = Localization.GetText(WORKFLOW_DONT_STARED);
                    return response;
                }
                [...]

测试代码为：

var mockAbstractRep = new Mock<ITCAbstractRepository>();
            mockAbstractRep
                .Setup(s => s.GetOne(x => x.Operation.OperationNumber == operationNumber))
                .Returns(entity);

但是当运行时，我得到一个空 "tcAbstract" 结果... "operationNumber" 和 "entity" 变量之前已填充，为简单起见未包含在此处。

我做错了什么？

Answer 1

试试看是否有帮助

var mockAbstractRep = new Mock<ITCAbstractRepository>();
mockAbstractRep
    .Setup(s => s.GetOne(It.IsAny<Expression<Func<EntityType, bool>>>()))
    .Returns(entity);

将 EntityType 替换为您的方法需要的类型

Moq 无法实例化包含 lambda 表达式的服务

Moq cannot instantiate service that includes lambda expression

c#

lambda

unit-testing

moq