Legacy Documentation. View NUnit 3 Documentation

TestFixtureAttribute (NUnit 2.0)

This is the attribute that marks a class that contains tests and, optionally, setup or teardown methods.

There are a few restrictions on a class that is used as a test fixture.

  • It must be a publicly exported type.
  • It must have not be abstract.
  • It must have a default constructor
  • It must have no more than one of each of the following method types: SetUp, TearDown, TestFixtureSetUp and TestFixtureTearDown.

If any of these restrictions are violated, the class will be shown as a non-runnable test fixture, and will turn yellow in the Gui if you attempt to run it.

In addition, it is advisable that the constructor not have any side effects, since NUnit may construct the object multiple times in the course of a session.

Example:

Language Filter 
namespace NUnit.Tests
{
  using System;
  using NUnit.Framework;

  [TestFixture]
  public class SuccessTests
  {
    // ...
  }
}

Imports System
Imports Nunit.Framework

Namespace Nunit.Tests

  <TestFixture()> Public Class SuccessTests
    ' ...
  End Class
End Namespace

#using <Nunit.Framework.dll>
using namespace System;
using namespace NUnit::Framework;

namespace NUnitTests
{
  [TestFixture]
  public __gc class SuccessTests
  {
    // ...
  };
}

#include "cppsample.h"

namespace NUnitTests {
  // ...
}

package NUnit.Tests;

import System.*;
import NUnit.Framework.TestFixture;


/** @attribute NUnit.Framework.TestFixture() */
public class SuccessTests
{
  // ...
}