您能否像将数据传递给测试用例一样将数据传递给测试装置? [英] Can you pass data to a test fixture just like you pass data to test cases?

问题描述

您能否像将数据传递给测试用例一样将数据传递给 NUnit3 测试装置?这样做是否有意义?(根据参数运行套件(夹具类))

Can you pass data to a NUnit3 test fixture just like you pass data to test cases? Would it even make sense to do this? (run a suite (fixture class) based on a parameter)

推荐答案

绝对！

如果你需要传入的参数数量有限，你可以将它们放在普通的[TestFixture]属性中，然后它们会被传递给TestFixture的构造函数.例如

If there's a limited amount of parameters you need to pass in, you can just put these in the normal [TestFixture] attribute, and they will be passed to the constructor of the TestFixture. e.g.

[TestFixture("hello", "hello", "goodbye")]
[TestFixture("zip", "zip", "zap")]
public class ParameterizedTestFixture
{
    private string eq1;
    private string eq2;
    private string neq;

    public ParameterizedTestFixture(string eq1, string eq2, string neq)
    {
        this.eq1 = eq1;
        this.eq2 = eq2;
        this.neq = neq;
    }

此版本将使用两组不同的参数运行测试装置两次.(文档)

This version would run the test fixture twice, with the two different sets of parameters. (Docs)

如果您有更多参数，您可能希望查看 [TestFixtureSource] - 它的工作方式大致相同，但允许您在静态方法中计算参数，而不是明确指定在一个属性中.(文档)诸如此类:

If you have more parameters, you may wish to look at [TestFixtureSource] - which works much the same way, but allows you to calculate your parameters in a static method, as opposed to explicity specified in an attribute. (Docs) Something such as this:

[TestFixtureSource(typeof(FixtureArgs))]
public class MyTestClass
{
    public MyTestClass(string word, int num) { ... }

    ...
}

class FixtureArgs: IEnumerable
{
    public IEnumerator GetEnumerator()
    {
        yield return new object[] { "Question", 1 };
        yield return new object[] { "Answer", 42 };
    }
}

最后，如果您需要在运行时传入参数，这也可以通过 --params 命令行选项来实现，这是 NUnit v3.4 中的新功能.看起来这还没有被记录下来，但是您可以将它以 --params:X=5;Y=7" 格式传递到 NUnit 控制台命令行中.然后可以检索它通过 TestContext.Parameters 类.

Finally, if you need to pass parameters in at run-time, this is also possible through the --params command line option, new in NUnit v3.4. It doesn't look like this is documented yet, but you can pass it into the NUnit console command line in the format --params:X=5;Y=7". It can then be retrieved through the TestContext.Parameters class.

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