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| 5 | <title>NUnit - Teardown</title>
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| 25 | <div id="content">
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| 26 |
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| 27 | <script language="JavaScript" src="codeFuncs.js" ></script> <!-- Do it this way for IE -->
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| 28 |
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| 29 | <h3>TearDownAttribute (NUnit 2.0 / 2.5)</h3>
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| 30 |
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| 31 | <p>This attribute is used inside a TestFixture to provide a common set of
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| 32 | functions that are performed after each test method is run.
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| 33 |
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| 34 | <p><b>Before NUnit 2.5</b>, a TestFixture could have only one TearDown method
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| 35 | and it was required to be an instance method.
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| 36 |
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| 37 | <p><b>Beginning with NUnit 2.5</b>, TearDown methods may be either static or
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| 38 | instance methods and you may define more than one of them in a fixture.
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| 39 | Normally, multiple TearDown methods are only defined at different levels
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| 40 | of an inheritance hierarchy, as explained below.
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| 41 |
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| 42 | <p>So long as any SetUp method runs without error, the TearDown method is
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| 43 | guaranteed to run. It will not run if a SetUp method fails or throws an
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| 44 | exception.</p>
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| 45 |
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| 46 | <h4>Example:</h4>
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| 47 |
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| 48 | <div class="code">
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| 49 |
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| 50 | <div class="langFilter">
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| 51 | <a href="javascript:Show('DD1')" onmouseover="Show('DD1')"><img src="img/langFilter.gif" width="14" height="14" alt="Language Filter"></a>
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| 52 | <div id="DD1" class="dropdown" style="display: none" onclick="Hide('DD1')">
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| 53 | <a href="javascript:ShowCS()">C#</a><br>
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| 54 | <a href="javascript:ShowVB()">VB</a><br>
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| 55 | <a href="javascript:ShowMC()">C++</a><br>
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| 56 | <a href="javascript:ShowJS()">J#</a><br>
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| 57 | </div>
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| 58 | </div>
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| 59 |
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| 60 | <pre class="cs">namespace NUnit.Tests
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| 61 | {
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| 62 | using System;
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| 63 | using NUnit.Framework;
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| 64 |
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| 65 | [TestFixture]
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| 66 | public class SuccessTests
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| 67 | {
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| 68 | [SetUp] public void Init()
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| 69 | { /* ... */ }
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| 70 |
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| 71 | [TearDown] public void Cleanup()
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| 72 | { /* ... */ }
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| 73 |
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| 74 | [Test] public void Add()
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| 75 | { /* ... */ }
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| 76 | }
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| 77 | }
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| 78 | </pre>
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| 79 |
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| 80 | <pre class="vb">Imports System
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| 81 | Imports Nunit.Framework
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| 82 |
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| 83 | Namespace Nunit.Tests
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| 84 |
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| 85 | <TestFixture()> Public Class SuccessTests
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| 86 | <SetUp()> Public Sub Init()
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| 87 | ' ...
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| 88 | End Sub
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| 89 |
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| 90 | <TearDown()> Public Sub Cleanup()
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| 91 | ' ...
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| 92 | End Sub
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| 93 |
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| 94 | <Test()> Public Sub Add()
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| 95 | ' ...
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| 96 | End Sub
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| 97 | End Class
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| 98 | End Namespace
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| 99 | </pre>
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| 100 |
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| 101 | <pre class="mc">#using <Nunit.Framework.dll>
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| 102 | using namespace System;
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| 103 | using namespace NUnit::Framework;
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| 104 |
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| 105 | namespace NUnitTests
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| 106 | {
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| 107 | [TestFixture]
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| 108 | public __gc class SuccessTests
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| 109 | {
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| 110 | [SetUp] void Init();
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| 111 | [TearDown] void Cleanup();
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| 112 |
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| 113 | [Test] void Add();
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| 114 | };
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| 115 | }
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| 116 |
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| 117 | #include "cppsample.h"
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| 118 |
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| 119 | namespace NUnitTests {
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| 120 | // ...
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| 121 | }
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| 122 | </pre>
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| 123 |
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| 124 | <pre class="js">package NUnit.Tests;
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| 125 |
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| 126 | import System.*;
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| 127 | import NUnit.Framework.TestFixture;
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| 128 |
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| 129 |
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| 130 | /** @attribute NUnit.Framework.TestFixture() */
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| 131 | public class SuccessTests
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| 132 | {
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| 133 | /** @attribute NUnit.Framework.SetUp() */
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| 134 | public void Init()
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| 135 | { /* ... */ }
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| 136 |
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| 137 | /** @attribute NUnit.Framework.TearDown() */
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| 138 | public void Cleanup()
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| 139 | { /* ... */ }
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| 140 |
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| 141 | /** @attribute NUnit.Framework.Test() */
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| 142 | public void Add()
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| 143 | { /* ... */ }
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| 144 | }
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| 145 | </pre>
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| 146 |
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| 147 | </div>
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| 148 |
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| 149 | <h3>Inheritance</h3>
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| 150 |
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| 151 | <p>The TearDown attribute is inherited from any base class. Therefore, if a base
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| 152 | class has defined a TearDown method, that method will be called
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| 153 | after each test method in the derived class.
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| 154 |
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| 155 | <p>Before NUnit 2.5, you were permitted only one TearDown method. If you wanted to
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| 156 | have some TearDown functionality in the base class and add more in the derived
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| 157 | class you needed to call the base class method yourself.
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| 158 |
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| 159 | <p>With NUnit 2.5, you can achieve the same result by defining a TearDown method
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| 160 | in the base class and another in the derived class. NUnit will call base
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| 161 | class TearDown methods after those in the derived classes.
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| 162 |
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| 163 | <p><b>Note:</b> Although it is possible to define multiple TearDown methods
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| 164 | in the same class, you should rarely do so. Unlike methods defined in
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| 165 | separate classes in the inheritance hierarchy, the order in which they
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| 166 | are executed is not guaranteed.
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| 167 |
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| 168 | <h4>See also...</h4>
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| 169 | <ul>
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| 170 | <li><a href="setup.html">SetUpAttribute</a><li><a href="fixtureSetup.html">TestFixtureSetUpAttribute</a><li><a href="fixtureTeardown.html">TestFixtureTearDownAttribute</a></ul>
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