如何在运行时从NUnit测试运行中获取单元测试方法属性？

Question

我在一个属性中存储有关给定测试的各种信息(多个bug跟踪系统的ID),如下所示:

[TestCaseVersion("001","B-8345","X543")]
public void TestSomethingOrOther()

为了在测试过程中获取此信息,我编写了以下代码:

     public string GetTestID()
     {
        StackTrace st = new StackTrace(1);
        StackFrame sf;
        for (int i = 1; i <= st.FrameCount; i++)
        {
            sf = st.GetFrame(i);
            if (null == sf) continue;
            MethodBase method = sf.GetMethod();
            if (method.GetCustomAttributes(typeof(TestAttribute), true).Length == 1)
            {
                if (method.GetCustomAttributes(typeof(TestCaseVersion), true).Length == 1)
                {
                    TestCaseVersion tcv =
                        sf.GetMethod().GetCustomAttributes(typeof(TestCaseVersion), true).OfType<TestCaseVersion>()
                            .First();
                    return tcv.TestID;
                }
            }
        }

问题是当在发布模式下通过NUnit运行测试时,应该具有测试名称和这些属性的方法将替换为以下内容:

System.RuntimeMethodHandle._InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeType typeOwner)
   at System.RuntimeMethodHandle.InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, Signature sig, MethodAttributes methodAttributes, RuntimeType typeOwner)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)
   at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   at NUnit.Core.Reflect.InvokeMethod(MethodInfo method, Object fixture, Object[] args)

更新 对于任何感兴趣的人,我最终以下列方式实现代码(以便可以访问任何属性值,而无需更改任何使用TestCaseVersion属性的现有代码:

[AttributeUsage(AttributeTargets.Class | AttributeTargets.Interface | AttributeTargets.Method, AllowMultiple = false)]
public class TestCaseVersion : PropertyAttribute
{
   public TestCaseVersion(string testCaseCode, string story, string task, string description)
   {
      base.Properties.Add("TestId", testCaseCode);
      base.Properties.Add("Description", description);
      base.Properties.Add("StoryId", story);
      base.Properties.Add("TaskId", task);
    }
}

public string GetTestID()
{
   return TestContext.CurrentContext.Test.Properties["TestId"];
}

Answer 1

如果您可以使用单值测试用例版本字符串(即"001, B-8345, X543"代替"001","B-8345","X543"),则应该能够使用NUnit 2.5.7 及更高版本中提供的TestContext功能.

具体来说,您可以像这样定义和使用测试上下文属性属性TestCaseVersion:

[Test, Property("TestCaseVersion", "001, B-8345, X543")]
public void TestContextPropertyTest()
{
    Console.WriteLine(TestContext.CurrentContext.Test.Properties["TestCaseVersion"]);
}

更新 BTW,如果您确实想要使用测试用例版本的多值表示,您可以定义多个属性,如下所示:

[Test, Property("MajorVersion", "001"), 
 Property("MinorVersion", "B-8345"), Property("Build", "X543")]
public void TestContextPropertyTest()
{
    Console.WriteLine(TestContext.CurrentContext.Test.Properties["MajorVersion"]);
    Console.WriteLine(TestContext.CurrentContext.Test.Properties["MinorVersion"]);
    Console.WriteLine(TestContext.CurrentContext.Test.Properties["Build"]);
}