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namespace NUnit.Extensions
{
using System;
using NUnit.Framework;
/// <summary>A TestCase that expects an Exception of class fExpected
/// to be thrown.</summary>
/// <remarks> The other way to check that an expected exception is thrown is:
/// <code>
/// try {
/// ShouldThrow();
/// }catch (SpecialException) {
/// return;
/// }
/// Assertion.Fail("Expected SpecialException");
/// </code>
///
/// To use ExceptionTestCase, create a TestCase like:
/// <code>
/// new ExceptionTestCase("TestShouldThrow", typeof(SpecialException));
/// </code></remarks>
public class ExceptionTestCase: TestCase
{
private readonly Type fExpected;
/// <summary>
///
/// </summary>
/// <param name="name"></param>
/// <param name="exception"></param>
public ExceptionTestCase(string name, Type exception) : base(name)
{
fExpected= exception;
}
/// <summary>Execute the test method expecting that an Exception of
/// class fExpected or one of its subclasses will be thrown.</summary>
protected override void RunTest()
{
try
{
base.RunTest();
}
catch (Exception e)
{
if (fExpected.IsAssignableFrom(e.InnerException.GetType()))
return;
else
throw e.InnerException;
}
Assertion.Fail("Expected exception " + fExpected);
}
}
}
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