How to throw a SqlException when needed for mocking and unit testing?

Question

I am trying to test some exceptions in my project and one of the Exceptions I catch is SQlException.

It seems that you can\'t go new SqlException(

Answer 1

(Sry it's 6 months late, hope this won't be considered necroposting I landed here looking for how to throw a SqlCeException from a mock).

If you just need to test the code that handles the exception an ultra simple workaround would be:

public void MyDataMethod(){
    try
    {
        myDataContext.SubmitChanges();
    }
    catch(Exception ex)
    {
        if(ex is SqlCeException || ex is TestThrowableSqlCeException)
        {
            // handle ex
        }
        else
        {
            throw;
        }
    }
}



public class TestThrowableSqlCeException{
   public TestThrowableSqlCeException(string message){}
   // mimic whatever properties you needed from the SqlException:
}

var repo = new Rhino.Mocks.MockReposity();
mockDataContext = repo.StrictMock();
Expect.Call(mockDataContext.SubmitChanges).Throw(new TestThrowableSqlCeException());