141 lines
5.4 KiB
HTML
141 lines
5.4 KiB
HTML
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<h2>Utility Methods</h2>
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<p>Four utility methods, <b>Pass()</b>, <b>Fail()</b>, <b>Ignore()</b> and <b>Inconclusive()</b> are provided
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in order to allow more direct control of the test process:</p>
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<div class="code" style="width: 36em"><pre>
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Assert.Pass();
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Assert.Pass( string message );
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Assert.Pass( string message, object[] parms );
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Assert.Fail();
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Assert.Fail( string message );
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Assert.Fail( string message, object[] parms );
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Assert.Ignore();
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Assert.Ignore( string message );
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Assert.Ignore( string message, object[] parms );
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Assert.Inconclusive();
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Assert.Inconclusive( string message );
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Assert.Inconclusive( string message, object[] parms );</pre>
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</div>
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<p>The <b>Assert.Pass</b> method allows you to immediately end the test, recording
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it as successful. Since it causes an exception to be thrown, it is more
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efficient to simply allow the test to return. However, Assert.Pass allows
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you to record a message in the test result and may also make the test
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easier to read in some situations. Additionally, like the other methods
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on this page, it can be invoked from a nested method call with the
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result of immediately terminating test execution.</p>
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<p>The <b>Assert.Fail</b> method provides you with the ability to generate a failure based
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on tests that are not encapsulated by the other methods. It is also useful in
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developing your own project-specific assertions.</p>
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<p>Here's an example of its use to create a private assertion that tests whether a
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string contains an expected value.</p>
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<div class="code" style="width: 36em">
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<pre>public void AssertStringContains( string expected, string actual )
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{
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AssertStringContains( expected, actual, string.Empty );
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}
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public void AssertStringContains( string expected, string actual,
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string message )
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{
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if ( actual.IndexOf( expected ) < 0 )
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Assert.Fail( message );
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}</pre>
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</div>
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<p>The <b>Assert.Ignore</b> method provides you with the ability to dynamically cause a
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test or suite to be ignored at runtime. It may be called in a test, setup or
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fixture setup method. We recommend that you use this only in isolated cases.
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The category facility is provided for more extensive inclusion or exclusion of
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tests or you may elect to simply divide tests run on different occasions into
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different assemblies.</p>
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<p>The <b>Assert.Inconclusive</b> method indicates that the test could not be
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completed with the data available. It should be used in situations where
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another run with different data might run to completion, with either a
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success or failure outcome.
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