public void Delete_GivenBookId_RemovesBookFromLibrary()
{
// Arrange
var bookLibrary = new BookLibrary();
bookLibrary.Add("A Tale of Two Cities");
bookLibrary.Add("Fellowship of the Ring");
bookLibrary.Add("Pride and Prejudice and Zombies");
// Act
bookLibrary.Delete(1);
// Assert
Assert.Throws <KeyNotFoundException>(() => bookLibrary.Get(1));
}
