public void BeAbleToAddAndRemoveAConnectionString()
        {
            var source = GetFakeSource();
            var man = new SecureSettingsManager(source);

            man.SetConnectionString("test", "test");
            man.RemoveConnectionString("test");

            try
            {
                man.GetConnectionString("test");
                Assert.Fail("ConnectionString should not exist anymore");
            }
            catch (Exception e)
            {
                Assert.IsNotInstanceOfType(e, typeof(AssertFailedException));
            }
        }