使用Rhino Mocks返回空列表作为默认值

Install-Package Rhino.Mocks

public interface IDataProvider
{
    List<string> GetData();
}

public class DataProcessor
{
    private readonly IDataProvider _dataProvider;

    public DataProcessor(IDataProvider dataProvider)
    {
        _dataProvider = dataProvider;
    }

    public List<string> ProcessData()
    {
        var data = _dataProvider.GetData();
        // 处理数据
        return data;
    }
}

using NUnit.Framework;
using Rhino.Mocks;

[TestFixture]
public class DataProcessorTests
{
    [Test]
    public void ProcessData_ReturnsEmptyList()
    {
        // 创建模拟对象
        var mockDataProvider = MockRepository.GenerateMock<IDataProvider>();

        // 设置模拟对象的GetData方法返回空列表
        mockDataProvider.Expect(x => x.GetData()).Return(new List<string>());

        // 创建DataProcessor实例，并将模拟的IDataProvider传递给它
        var dataProcessor = new DataProcessor(mockDataProvider);

        // 调用ProcessData方法，并验证它返回空列表
        var result = dataProcessor.ProcessData();
        Assert.That(result, Is.Empty);

        // 验证模拟对象的方法被调用
        mockDataProvider.VerifyAllExpectations();
    }
}