public void DisposeSetsBookStateToDisposed()
{
var book = new Book("author", "title", "call number", 1);
book.State = BookState.AVAILABLE;
book.Dispose();
Assert.Equal(BookState.DISPOSED, book.State);
}
public void DisposeThrowsException()
{
var book = new Book("author", "title", "call number", 1);
// Set book to Available and should be able to dispose.
book.State = BookState.AVAILABLE;
book.Dispose();
Assert.Equal(BookState.DISPOSED, book.State);
// Set book to Damaged and should be able to dispose.
book.State = BookState.DAMAGED;
book.Dispose();
Assert.Equal(BookState.DISPOSED, book.State);
// Set book to Lost and should be able to dispose.
book.State = BookState.LOST;
book.Dispose();
Assert.Equal(BookState.DISPOSED, book.State);
// Should throw for others.
book.State = BookState.ON_LOAN;
var ex1 = Assert.Throws<InvalidOperationException>(() => book.Dispose());
book.State = BookState.DISPOSED;
var ex2 = Assert.Throws<InvalidOperationException>(() => book.Dispose());
Assert.Equal(ex1.Message, ex2.Message);
Assert.Equal("Book cannot be disposed in its current state", ex2.Message);
}
public void WhenBookIsLostAndDisposedShouldBeDisposed()
{
var book = new Book("author", "title", "call number", 1);
var member = new Member("first", "last", "phone", "email", 1);
var loan = new Loan(book, member, DateTime.Today, DateTime.Today.AddDays(7));
book.Borrow(loan);
book.Lose();
book.Dispose();
Assert.Equal(BookState.DISPOSED, book.State);
}
