public void UpdateBook_ExistingBook_ReturnsGetBookDto()
{
AddBookDto newBook = BookTestData.AddBookDto();
mapperMock.Setup(m => m.Map <Book>(It.IsAny <AddBookDto>())).Returns(BookTestData.Book());
mapperMock.Setup(m => m.Map <UpdateBookDto>(It.IsAny <GetBookDto>())).Returns(BookTestData.AddBookDtoToUpdateBookDtoMapping());
mapperMock.Setup(m => m.Map <GetBookDto>(It.IsAny <Book>())).Returns(BookTestData.AddBookDtoToGetBookDtoMapping());
BookService bookService = new BookService(mapperMock.Object, dbContextMock.Object);
ServiceResponse <List <GetBookDto> > addBookResponse = bookService.AddBook(newBook);
GetBookDto addedBook = addBookResponse.Data.First();
UpdateBookDto updatedBook = mapperMock.Object.Map <UpdateBookDto>(addedBook);
updatedBook.Price = 900;
ServiceResponse <GetBookDto> updatedBookResponse = bookService.UpdateBook(updatedBook);
GetBookDto savedBook = updatedBookResponse.Data;
Assert.That(updatedBookResponse.Success, Is.EqualTo(true));
Assert.That(updatedBookResponse, Is.InstanceOf <ServiceResponse <GetBookDto> >());
Assert.That(savedBook, Is.InstanceOf <GetBookDto>());
Assert.That(savedBook.Price, Is.EqualTo(updatedBook.Price));
}
