Question

我需要在输出窗口中标记我的替代品，因为现在我有了这个：

Expected: not collection containing <Castle.Proxies.IFormProxy>
But was:  < <Castle.Proxies.IFormProxy>, <Castle.Proxies.IFormProxy> >

我想要这个：

Expected: not collection containing <Bad>
But was:  < <Good>, <Bad> >

ToString()是显而易见的方式，但它不起作用（How to substitute Object.ToString using NSubstitute?）

Answer 1

这是一个老问题，但这是我在遇到问题时所做的事情：

在我的界面中，我添加了ToString（）

public interface IRowDetail
{
    ...
    string ToString();
}

创建替代品以返回我的ToString：

var fake = Substitute.For<IRowDetail>();
string message = $"{x} - {y}";

fake.ToString().Returns(message); // this works because it's IRowDetail.ToString()

return fake;

在测试中我创建了一条自定义消息：

Assert.AreEqual(expectedList, orderedList, "Lists differ: " + Diff(expectedList, orderedList.ToList()));

...

private string Diff(List<IRowDetail> expectedList, List<IRowDetail> orderedList)
{
    StringBuilder buffer = new StringBuilder();

    for (int i = 0; i < expectedList.Count; i++)
    {
        var o1 = ((IRowDetail)expectedList[i]).ToString(); // this is calling IRowDetail.ToString() which we configured
        var o2 = ((IRowDetail)orderedList[i]).ToString();

        if(!o1.Equals(o2))
            buffer.AppendLine($"Expected {o1} but was {o2} at index {i}.");
    }

    return buffer.ToString();
}

这是输出：

Lists differ: Expected 1 - 55 but was 1 - 38 at index 1.
Expected 1 - 38 but was 1 - 55 at index 2.
Expected 4 - 44 but was 4 - 39 at index 10.
Expected 4 - 39 but was 4 - 44 at index 11.

也许这也适合你。欢呼声。

NSubstitute：识别替代品（ToString（）替换）

1 个答案: