有没有更好的方法将动态输入在线传递给DataTestMethod?IE.如何以编程方式为数据驱动的测试创建测试输入

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问题描述

多年来，我一直在寻找这种方法，我认为我终于在"MSTest V2"(这是.netcore随附的方法，并且只能在Visual Studio中正确处理的方法)中找到一种真正的方法.2017).请参阅我的答案以获取解决方案.

I've been looking for this for years and years, and I think I've finally found a real way in "MSTest V2" (meaning the one that comes with .netcore, and is only really handled correctly in Visual Studio 2017). See my answer for my solution.

这为我解决的问题是我的输入数据不容易序列化，但是我需要对其中的许多逻辑进行测试.有很多理由使这种方法更好，但这对我来说是个停滞点.我被迫进行一个巨大的单元测试，并通过for循环遍历我的输入.直到现在.

The problem this solves for me is that my input data is not easily serialized, but I have logic that needs to be tested with many of these inputs. There are lots of reasons why it's better to do it this way, but that was the show-stopper for me; I was forced to have one giant unit test with a for loop going through my inputs. Until now.

推荐答案

您现在可以使用DynamicDataAttribute:

You can now use the DynamicDataAttribute:

[DynamicData(nameof("TestMethodInput"))]
[DataTestMethod]
public void TestMethod(List<string> list)
{
    Assert.AreEqual(2, list.Count);
}

public static IEnumerable<object[]> TestMethodInput
{
    get
    {
        return new[]
        {
            new object[] { new List<string> { "one" } },
            new object[] { new List<string> { "one", "two" } },
            new object[] { new List<string> { "one", "two", "three" } }
        };
    }
}

https://dev.to/frannsoft/mstest-v2---new-old-kid-on-the-block

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