c# - 使用 NUnit 对动作进行单元测试

Question

我想用 NUnit 和 Rhino Mocks 对以下函数进行单元测试。该函数使用给定的参数创建一个RestSharp.RestRequest并将请求发送给dataAccessApi：

public void CopyToUserSession(string uri, string sourcePath)
{
    RestRequest request = new RestRequest(uri, Method.POST);
    request.AddParameter("source-path", sourcePath);

    dataAccessApi.Request<object>(request, restExecution.Get);
}

这是测试类：

public void CopyToUserSession_ValidUriAndParameter_CallDataAccessRequest()
{
    // Arrange
    var dataAccessApi = MockRepository.GenerateMock<IDataAccessApi>();
    var restExecution = MockRepository.GenerateMock<IRestExecution>();
    var sinkNodeResource = new SinkNodeResource(dataAccessApi, restExecution);

    string uri = "http://SomeUri.com";
    string sourcePath = "Some Source Path";

    RestRequest request = new RestRequest(uri, Method.POST);
    request.AddParameter("source-path", sourcePath);

    // Act
    sinkNodeResource.CopyToUserSession(uri, sourcePath);

    // Assert
    dataAccessApi.AssertWasCalled(x => x.Request<object>(request, restExecution.Get));
}

IDataAccessApi...：

public interface IDataAccessApi
{
    void Request<T>(RestRequest request, Action<T> callbackAction) where T : new();
} 

...和IRestExecution：

public interface IRestExecution
{
    void Get(object o);

    void Put(object o);

    void Post(object o);

    void Delete(object o);
}

该测试使用更容易调用的函数（如x.Test("Some String")），但不适用于 Action new RestExecution().Get- 我如何对此类调用进行单元测试？

预先感谢您的帮助！

编辑：更改了关于 @rich.okelly 评论的代码。

编辑：添加了接口的代码

Answer 1

尝试以下操作：

// arrange
var dataAccessApi = MockRepository.GenerateMock<IDataAccessApi>();
var restExecution = MockRepository.GenerateMock<IRestExecution>();
var sinkNodeResource = new SinkNodeResource(dataAccessApi, restExecution);
string uri = "http://SomeUri.com";
string sourcePath = "Some Source Path";

// act
sinkNodeResource.CopyToUserSession(uri, sourcePath);

// assert
dataAccessApi.AssertWasCalled(
    x => x.Request<object>(
        Arg<RestRequest>.Matches(
            y => y.Method == Method.POST && 
                 y.Resource == uri &&
                 y.Parameters.Count == 1 &&
                 y.Parameters[0].Value as string == sourcePath
        ),
        Arg<Action<object>>.Is.Equal((Action<object>)restExecution.Get)
    )
);