如何定义单元测试的不同顺序？

Question

I have these 3 tests:

using NUnit.Framework;
using OpenQA.Selenium;
using OpenQA.Selenium.Chrome;
using System;
using System.Threading;

namespace FirstTestCase
{
class _04_02_Media
{

    class NUnitTest
    {
[TestCase(TestName = "04_02_01_Libraries_Add_OnDemand_Video")]
                public void Libraries()
                {}
    [TestCase(TestName = "04_02_02_Replace_OnDemand")]
                public void OnDemandReplace()
                {}
    [TestCase(TestName = "04_02_03_Delete_OnDemand")]
                public void OnDemandDelete()
                {}

For some reason i cannot understand and is making me go crazy, the "delete" test, the one supposed to be the last, happens second. This is a big deal as the "replace" test, that happens last, uses the deleted video.

Why does it run in this order? Is there anything else i should use to change the order?

Answer 1

You can use the Order attribute to specify the order:

[Order(1)]
public void Test1() { /* ... */ }

[Order(2)]
public void Test2() { /* ... */ }

[Order(3)]
public void Test3() { /* ... */ }

However, you should really try to make sure your tests are self-contained otherwise they can be quite brittle.

Answer 2

Just use order attribute.

using NUnit.Framework;
using OpenQA.Selenium;
using OpenQA.Selenium.Chrome;
using System;
using System.Threading;

namespace FirstTestCase
{
    class _04_02_Media
    {

        class NUnitTest
        {
            [Test, Order(1)]
            public void Libraries()
            {}

            [Test, Order(2)]
            public void OnDemandReplace()
            {}

            [Test, Order(3)]
            public void OnDemandDelete()
            {}
        }
    }
}