public void WithTapAction_should_return_CardActionSetAssertions() { var tap = new CardAction(); var cards = ReceiptCardTestData.CreateReceiptCardSetWithOneCardThatHasSetProperties(tap: tap); var sut = new ReceiptCardSetAssertions(cards); sut.WithTapAction().Should().BeAssignableTo <CardActionSetAssertions>().And.NotBeNull(); }