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Visual Studio Test can check for expected exceptions using the ExpectedException attribute. You can pass in an exception like this: [TestMethod] [ExpectedException(typeof(CriticalException))] public void GetOrganisation_MultipleOrganisations_ThrowsException() You can also check for the message contained within the ExpectedException like this: [TestMethod] [ExpectedException(typeof(CriticalException), "An error occured")] public void GetOrganisation_MultipleOrganisations_ThrowsException() But when testing I18N applications I would use a resource file to get that error message (any may even decide to test the different localizations of the error message if I want to, but Visual Studio will not let me do this: [TestMethod] [ExpectedException(typeof(CriticalException), MyRes.MultipleOrganisationsNotAllowed)] public void GetOrganisation_MultipleOrganisations_ThrowsException() The compiler will give the following error: An attribute argument must be a constant expression, typeof expression or array creation expression of an attribute Does anybody know how to test for an exception that has a message from a resource file? One option I have considered is using custom exception classes, but based on often heard advice such as: "Do create and throw custom exceptions if you have an error condition that can be programmatically handled in a different way than any other existing exception. Otherwise, throw one of the existing exceptions." Source I'm not expecting to handle the exceptions differently in normal flow (it's a critical exception, so I'm going into panic mode anyway) and I don't think creating an exception for each test case is the right thing to do. Any opi

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