public void DeletesAllContacts() { //given some existing contact var contact1 = new Contact("Joao das Neves"); var contact2 = new Contact("Jonny of the Snows"); subject.SaveContact(contact1); subject.SaveContact(contact2); // When I delete all contacts subject.DeleteAll(); // Then we're left with an empty table of contacts var table = DB.Table <Contact>().ToList(); Assert.Empty(table); }