/// <summary>
/// Resolves the expected exception attribute. The function will try to
/// get all the expected exception attributes defined for a testMethod.
/// </summary>
/// <param name="methodInfo">The MethodInfo instance.</param>
/// <param name="testMethod">The test method.</param>
/// <returns>
/// The expected exception attribute found for this test. Null if not found.
/// </returns>
public virtual ExpectedExceptionBaseAttribute ResolveExpectedExceptionHelper(MethodInfo methodInfo, TestMethod testMethod)
{
Debug.Assert(methodInfo != null, "MethodInfo should be non-null");
// Get the expected exception attribute
ExpectedExceptionBaseAttribute[] expectedExceptions;
try
{
expectedExceptions = GetCustomAttributes(methodInfo, typeof(ExpectedExceptionBaseAttribute), true).OfType <ExpectedExceptionBaseAttribute>().ToArray();
}
catch (Exception ex)
{
// If construction of the attribute throws an exception, indicate that there was an
// error when trying to run the test
string errorMessage = string.Format(
CultureInfo.CurrentCulture,
Resource.UTA_ExpectedExceptionAttributeConstructionException,
testMethod.FullClassName,
testMethod.Name,
StackTraceHelper.GetExceptionMessage(ex));
throw new TypeInspectionException(errorMessage);
}
if (expectedExceptions == null || expectedExceptions.Length == 0)
{
return(null);
}
// Verify that there is only one attribute (multiple attributes derived from
// ExpectedExceptionBaseAttribute are not allowed on a test method)
if (expectedExceptions.Length > 1)
{
string errorMessage = string.Format(
CultureInfo.CurrentCulture,
Resource.UTA_MultipleExpectedExceptionsOnTestMethod,
testMethod.FullClassName,
testMethod.Name);
throw new TypeInspectionException(errorMessage);
}
// Set the expected exception attribute to use for this test
ExpectedExceptionBaseAttribute expectedException = expectedExceptions[0];
return(expectedException);
}