public void TestLazyLoadBookAndReviewUsingProxiesPackageOk()
{
//SETUP
var options = SqliteInMemory.CreateOptions <LazyProxyContext>(
builder => builder.UseLazyLoadingProxies());
using (var context = new LazyProxyContext(options))
{
context.Database.EnsureCreated();
var book = new BookLazyProxy
{
Reviews = new List <LazyReview>
{
new LazyReview {
NumStars = 5
}, new LazyReview {
NumStars = 1
}
}
};
context.Add(book);
context.SaveChanges();
}
using (var context = new LazyProxyContext(options))
{
//ATTEMPT
var book = context.Books.Single(); //#A
book.Reviews.Count().ShouldEqual(2); //#B
/*********************************************************
#A We just load the book class
#B When the Reviews are read, then EF Core will read in the reviews
* *******************************************************/
}
}
public void TestLazyLoadCompareIncludeOk()
{
//SETUP
var showLog = false;
var options = SqliteInMemory.CreateOptionsWithLogging <LazyProxyContext>(log =>
{
if (showLog)
{
_output.WriteLine(log.DecodeMessage());
}
}, builder: builder => builder.UseLazyLoadingProxies());
using var context = new LazyProxyContext(options);
context.Database.EnsureCreated();
var book = new BookLazyProxy
{
Reviews = new List <LazyReview>
{
new LazyReview {
NumStars = 5
}, new LazyReview {
NumStars = 1
}
}
};
context.Add(book);
context.SaveChanges();
context.ChangeTracker.Clear();
//ATTEMPT
showLog = true;
var book1 = context.Books.TagWith("lazy").Single();
book1.Reviews.Count().ShouldEqual(2);
var book2 = context.Books.TagWith("include").Include(x => x.Reviews).Single();
book2.Reviews.Count().ShouldEqual(2);
}