public void Index_when_category_name_is_null_returns_defaultview()
{
//arrange
var controller = new SchemaController(_esdFunctionService, _dataShareSchemaImportService, _datasetSchemaService,
_dataSetSchemaColumnService, _categoryService, _systemConfigurationService);
//act
var result = (ViewResult)controller.Index(null);
//assert
Assert.AreEqual("", result.ViewName);
//cleanup
}