public void AgainstTextFields_Clears_And_Adds_Range() { LibrarySearchCriteria crit = new LibrarySearchCriteria() .AgainstTextFields(new LibrarySearchCriteria.SearchableTextField[] { LibrarySearchCriteria.SearchableTextField.Labels }); Assert.AreEqual(new LibrarySearchCriteria.SearchableTextField[] { LibrarySearchCriteria.SearchableTextField.Labels }, crit.TextFieldsToSearch); crit.AgainstTextFields(new LibrarySearchCriteria.SearchableTextField[] { LibrarySearchCriteria.SearchableTextField.Definitions }); Assert.AreEqual(new LibrarySearchCriteria.SearchableTextField[] { LibrarySearchCriteria.SearchableTextField.Definitions }, crit.TextFieldsToSearch); }