public async Task <IPageResult <Book> > GetBooks(BookSpecification specification, int index, int pageSize)
{
Guard.Against.NegativeIndexPage(pageSize, index);
var list = await _bookRepository.GetListAsync(specification);
return(new PageResult <Book>(list, index, pageSize));
}
public async Task BookSpecification_IsSatisfied_WithNothing()
{
foreach (Book book in DataSeed.Books)
{
bool isSatisfied = new BookSpecification().IsSatisfiedBy(book);
Assert.True(isSatisfied);
}
}
public async Task BookSpecification_IsSatisfied_WithTitle(string title)
{
var satisfiedList = DataSeed.Books.Where(b => b.Title.Contains(title));
foreach (Book book in satisfiedList)
{
bool isSatisfied = new BookSpecification(title).IsSatisfiedBy(book);
Assert.True(isSatisfied);
}
}
public async Task GetBooks_ShouldGet_CorrectBookList(BookSpecification specification, int index, int pageSize, int count)
{
IQueryable <Book> bookQueryable = DataSeed.Books.AsQueryable().Where(specification);
_repository.Setup(s => s.GetListAsync(It.IsAny <Expression <Func <Book, bool> > >(), It.IsAny <Func <IQueryable <Book>, IOrderedQueryable <Book> > >(), It.IsAny <Expression <Func <Book, object> > >()))
.ReturnsAsync(bookQueryable);
IPageResult <Book> books = await _bookService.GetBooks(specification, index, pageSize);
Assert.NotNull(books);
Assert.Equal(count, books.Total);
int pageCount = count - pageSize * index;
Assert.Equal(pageCount >= pageSize ? pageSize : (pageCount > 0 ? count : 0), books.Data.Count());
}
public void TestBasicAndSpecification()
{
var bookList = DatabaseStub.Instance.Books;
var bookName = "The Phoenix Project";
var specification = new BookSpecification();
specification
.BooksSince(DateTime.Now.AddYears(-10))
.TitleStartingWith(bookName);
var expression = specification.Create();
var result = bookList.FindAll(x => expression.SatisfiedBy(x));
Assert.IsTrue(result.Count == 1);
Assert.IsTrue(result.FirstOrDefault()?.Title.StartsWith(bookName) ?? false);
}
public void TestBasicOrSpecification()
{
var bookList = DatabaseStub.Instance.Books;
var bookName = "The Goal";
var specification = new BookSpecification();
specification
.BooksSince(DateTime.Now.AddYears(-10))
.Or()
.TitleStartingWith(bookName);
var expression = specification.Create();
var result = bookList.FindAll(x => expression.SatisfiedBy(x));
Assert.IsTrue(result.Count > 1);
Assert.IsTrue(result.Exists(x => x.Title.StartsWith(bookName)));
}
public async Task <IReadOnlyList <Books> > GetBooksAsync(List <long> booksId)
{
var bookSpec = new BookSpecification(booksId);
return(await GetListAsync(bookSpec));
}
public async Task <IReadOnlyList <Books> > GetAllBooksAsync()
{
var bookSpec = new BookSpecification();
return(await GetListAsync(bookSpec));
}
public async Task <Books> GetBookByIdAsync(long bookId)
{
var bookSpec = new BookSpecification(bookId);
return(await GetItemByIdAsync(bookSpec));
}
