public void TestAddCondFormatAfterDataValidation_bug46547() { // Create a sheet with data validity (similar to bugzilla attachment id=23131). InternalSheet sheet = InternalSheet.CreateSheet(); sheet.GetOrCreateDataValidityTable(); ConditionalFormattingTable cft; // attempt to Add conditional formatting try { cft = sheet.ConditionalFormattingTable; // lazy getter } catch (InvalidCastException) { throw new AssertionException("Identified bug 46547b"); } Assert.IsNotNull(cft); }