public void Test_Lazy_Initialization()
{
Book book = bookDao.FindById(1);
Author author = authorDao.FindById(1);
// check if both obtained instances are proxies
Assert.IsTrue(book is BookProxy);
Assert.IsTrue(author is AuthorProxy);
// check if both proxies have uninitialized collections
BookProxy bookProxy = (BookProxy)book;
AuthorProxy authorProxy = (AuthorProxy)author;
Assert.IsFalse(bookProxy.AuthorsAreFetchedOrSet);
Assert.IsFalse(authorProxy.BooksAreFetchedOrSet);
// initialize collection of authors
Console.WriteLine();
foreach (Author a in book.Authors)
{
Console.WriteLine($"First Name: {a.FirstName}, LastName: {a.LastName}");
}
Console.WriteLine();
foreach (Book b in author.Books)
{
Console.WriteLine($"Id: {b.Id}, Title: {b.Title}");
}
Console.WriteLine();
// check if object inside collection is also proxy
var authors = new List <Author>(book.Authors);
var books = new List <Book>(author.Books);
Author a1 = authors[1];
Book b1 = books[0];
Assert.IsTrue(a1 is AuthorProxy);
Assert.IsTrue(b1 is BookProxy);
authorProxy = (AuthorProxy)a1;
bookProxy = (BookProxy)b1;
Assert.IsFalse(authorProxy.BooksAreFetchedOrSet);
Assert.IsFalse(bookProxy.AuthorsAreFetchedOrSet);
}
public void Test_BookDao()
{
var nonCachedInstanceFetch = new Stopwatch();
var cachedInstanceFetch = new Stopwatch();
// Test cache efficiency
nonCachedInstanceFetch.Start();
Book nonCachedBookInstance = BookDao.FindById(1);
nonCachedInstanceFetch.Stop();
cachedInstanceFetch.Start();
Book cachedBookInstance = BookDao.FindById(1);
cachedInstanceFetch.Stop();
Assert.IsTrue(cachedInstanceFetch.ElapsedTicks < nonCachedInstanceFetch.ElapsedTicks);
/* ***************************** */
// Check if returned by findById() method instances
// are BookProxy' instance
Assert.IsTrue(cachedBookInstance is BookProxy);
Assert.IsTrue(nonCachedBookInstance is BookProxy);
// *find* methods tests
IList <Book> allBooks = BookDao.FindAll();
IList <Book> foundByTitle = BookDao.FindByTitle("Fast Recipes");
IList <Book> foundByTitle2 = BookDao.FindByTitle("Fake Your Death");
IList <Book> foundByTitle3 = BookDao.FindByTitle("True");
IList <Book> foundByRating = BookDao.FindByRating(7.8f);
IList <Book> foundBySection = BookDao.FindBySection(BookSection.FICTION);
Assert.AreEqual(1, foundByTitle.Count);
Assert.AreEqual(1, foundByTitle2.Count);
Assert.AreEqual(2, foundByTitle3.Count);
Assert.AreEqual(3, foundByRating.Count);
Assert.AreEqual(5, foundBySection.Count);
Book temp = BookDao.FindById(1);
string tempTitle = temp.Title;
// test refresh method
temp.Title = "New Title";
BookDao.Refresh(temp);
Assert.AreEqual(tempTitle, temp.Title);
// test update method
temp.Title = "New Title";
BookDao.Update(temp);
Book temp1 = BookDao.FindById(temp.Id);
Assert.AreEqual(temp1.Title, temp.Title);
// test save method again
temp.Title = "Title*";
BookDao.Save(temp, SaveOption.UPDATE_IF_EXIST);
temp1 = BookDao.FindById(temp.Id);
Assert.AreEqual(temp1.Title, temp.Title);
}