zoukankan      html  css  js  c++  java
  • C# Unit test(1)

    Mock

    Example:

    var paymentServiceMock = new Mock<IPaymentService>();
    

    A Mock can be:

    • Instructed, you can tell a mock that if a certain method is called then it can answer with a certain response
    • Verified, verification is something you carry out after your production code has been called. You carry this out to verify that a certain method has been called with specific arguments

    Instruct our Mock

    To instruct it we use the method Setup() like so:

    paymentServiceMock.Setup(p => p.Charge()).Returns(true)
    

    we need to give the Charge() method the arguments it needs. There are two ways we can give the Charge() method the arguments it needs:

    1. Exact arguments, this is when we give it some concrete values like so:
    var card = new Card("owner", "number", "CVV number");
    
    paymentServiceMock.Setup(p => p.Charge(114,card)).Returns(true)
    
    1. General arguments, here we can use the helper It, which will allow us to instruct the method Charge() that any values of a certain data type can be passed through:
    paymentServiceMock.Setup(p => p.Charge(It.IsAny<double>(),card)).Returns(true)
    

    Accessing our implementation

    We will need to pass an implementation of our Mock when we call the actual production code. So how do we do that?

    There's an Object property on the Mock that represents the concrete implementation. Below we are using just that. We first construct cardMock and then we pass cardMock.Object to the Charge() method.

    var cardMock = new Mock<ICard>();
    
    paymentServiceMock.Setup(p => p.Charge(It.IsAny<double>(),cardMock.Object)).Returns(true)
    

    Example

    [Test]
    public void DoWorkTest()
    {
        // Set up the mock
        myInterfaceMock.Setup(m => m.DoesSomething()).Returns(true);
        myInterfaceMock.SetupGet(m => m.Name).Returns("Molly");
    
        var result = subject.DoWork();
    
        // Verify that DoesSomething was called only once
        myInterfaceMock.Verify((m => m.DoesSomething()), Times.Once());
    
        // Verify that DoesSomething was never called
        myInterfaceMock.Verify((m => m.DoesSomething()), Times.Never());
    }
    
  • 相关阅读:
    Operation Queue
    Dispatch Sources
    Base64编码详解
    属性存取、直接访问实例变量
    管理关联对象和NSDictionary区别
    3个Block替换Delegate的场景
    Objective-C消息机制
    Dispatch Queues调度队列
    DNS64/NAT64 Networks(解决IPv6审核被拒)
    NSObject的Initialize与Load方法
  • 原文地址:https://www.cnblogs.com/francisforeverhappy/p/CsharpUnitTest1.html
Copyright © 2011-2022 走看看