public void Test_EnsureInitialized()
        {
            MySettings mySettings = new MySettings();

            mySettings.Filter       = null;
            mySettings.Presentation = null;
            mySettings.Calculation  = null;
            mySettings.DataProvider = null;

            mySettings.EnsureInitialized();
            Assert.IsNotNull(mySettings.Filter);
            Assert.IsNotNull(mySettings.Presentation);
            Assert.IsNotNull(mySettings.Calculation);
            Assert.IsNotNull(mySettings.DataProvider);

            Assert.IsNotNull(mySettings.Filter.Taxa.TaxonIds);
            Assert.IsNotNull(mySettings.Filter.Spatial.Polygons);

            Assert.IsNotNull(mySettings.DataProvider.DataProviders.DataProvidersGuids);
        }