public void Delete()
{
MessageBox.Show("Buch gelöscht!");
Books.Remove(SelectedBook);
var book = new Book(SelectedBook.ISBN, SelectedBook.Publisher, SelectedBook.Name, SelectedBook.Author, SelectedBook.Description);
BookDatabase.DeleteBook(book);
}
public void TestDeleteBookNull()
{
try
{
bookDatabase.DeleteBook(null);
Assert.Fail("Deleting null book should fail");
}
catch (ArgumentNullException)
{
}
catch (Exception e)
{
Assert.Fail("Should throw ArgumentNullException");
}
}
public void TestDeleteBookSuccess()
{
var authors = new List <Author>()
{
new Author("AuthorA"),
new Author("AuthorB"),
};
var book = new Book("BookTitle", authors);
bookDatabase = new BookDatabase(new List <Book>()
{
book
});
try
{
bookDatabase.DeleteBook(book.Title);
}
catch (Exception e)
{
Assert.Fail();
}
// Check book title
try
{
bookDatabase.GetAuthorsForBook(book.Title);
Assert.Fail("Book should not exist anymore");
}
catch (ArgumentException)
{
}
catch (Exception)
{
Assert.Fail("Should throw ArgumentException");
}
// Check authors
try
{
bookDatabase.GetBookTitlesForAuthor(authors[0].Name);
Assert.Fail("Book should not exist anymore");
}
catch (ArgumentException)
{
}
catch (Exception)
{
Assert.Fail("Should throw ArgumentException");
}
}
public void TestDeleteBookThatDoesntExist()
{
var authors = new List <Author>()
{
new Author("AuthorA"),
new Author("AuthorB"),
};
var book = new Book("BookTitle", authors);
bookDatabase = new BookDatabase(new List <Book>()
{
book
});
try
{
bookDatabase.DeleteBook(book.Title + "1111");
}
catch (Exception e)
{
Assert.Fail("Delete book operation should not fail when deleting a non-existent book");
}
}