Need to know order of execution attribute in NUnit

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5.00/5 (1 vote)

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C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using NUnit.Framework;
using TestNUnit;
 
namespace UnitTest
{
    [TestFixture]
    public class NUnit
    {
        MyTest test=null;
        [SetUp]
        public void Initialize()
        {
            test = new MyTest();
        }
        [TearDown]
        public void CleanUp()
        {
            test = null;
        }
        [Test]
 
        public void Addition()
        {
            Assert.AreEqual(5, test.Add(2, 3));
        }
        [Test]
 
        public void Substraction()
        {
            Assert.AreEqual(0, test.Substract(2, 2));
 
        }
        [Test]
 
        public void Divide()
        {
            Assert.AreEqual(1, test.Devide(2, 2));
        }
    }
}

in the above code i have 3 [Test] methods. when we run them they run in alphabetical order.

i want to run in user defined order.

first Subtraction(), second Divide() and third addition() method.

can any one pls help me

Posted 16-Sep-14 19:15pm

sowmya19

Updated 19-Feb-18 10:14am

george4986

v2

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Damian Suess · Answer 1 · 2018-02-19T10:14:00

When creating tests with NUnit, they will execute in alphabetical order.

For more info, check out the Official NUnit documentation.

When creating a test case, they should be independent of each other. In the cases of wanting to place slower tests last, grouping similar, or whatever there are a couple of solutions.

As of NUnit 3.2 you can use the OrderAttribute.

C#

public class TestFixture
{
  [Test, Order(1)]
  public void FirstTest()
  {
    Assert.AreEqual(1, 1);
  }

  [Test, Order(2)]
  public void SecondTest()
  {
    Assert.AreEqual(2, 2);
  }

Another workaround for older versions is to use the TestCase attribute. However, this requires you to input an argument into the function. The TestName property will act as your sort order.

C#

public class TestFixture
{
  [TestCase(1, TestName = "Test1")]
  public void FirstTest(int unused)
  {
    Assert.AreEqual(1, 1);
  }

  [TestCase(2, TestName = "Test2")]
  public void SecondTest(int unused)
  {
    Assert.AreEqual(2, 2);
  }

And for yet another workaround for older NUnit version, you can use the Category attribute.

C#

public class TestFixture
{
  [Test]
  [Category("1st")]
  public void FirstTest()
  {
    Assert.AreEqual(1, 1);
  }

  [Test, Category("2nd")]
  public void SecondTest()
  {
    Assert.AreEqual(2, 2);
  }

  [Test, Category("3rd"), Description("Optional in-line attribute")]
  public void ThirdTest()
  {
    Assert.AreEqual(3, 3);
  }

Mehdi Gholam · Answer 2 · 2014-09-16T20:08:00

Solution 1

Read this : http://stackoverflow.com/questions/1078658/nunit-test-run-order[^]

Posted 16-Sep-14 20:08pm

Mehdi Gholam

Bernhard Hiller · Answer 3 · 2014-09-16T20:30:00

Solution 2

Just make sure that the names order alphabetically, i.e. start with 1_Substract, 2_Divide, 3_Add. In my experience, that simple trick works reliably.

Posted 16-Sep-14 20:30pm

Bernhard Hiller