public void TestDeleteBookOk()
{
//SETUP
var options = SqliteInMemory.CreateOptions <SqlDbContext>();
using (var context = new SqlDbContext(options))
{
context.Database.EnsureCreated();
context.SeedDatabaseFourBooks();
//ATTEMPT
context.Remove(context.Books.First());
var changes = BookChangeInfo.FindBookChanges(context.ChangeTracker.Entries().ToList(), context);
//VERIFY
changes.Single().BookId.ShouldNotEqual(Guid.Empty);
changes.Single().State.ShouldEqual(EntityState.Deleted);
}
}
public void TestUpdateDirectOk()
{
//SETUP
var options = SqliteInMemory.CreateOptions <SqlDbContext>();
using (var context = new SqlDbContext(options))
{
context.Database.EnsureCreated();
context.SeedDatabaseFourBooks();
}
using (var context = new SqlDbContext(options))
{
//ATTEMPT
var book = context.Books.First();
book.AddPromotion(123, "now 123");
var changes = BookChangeInfo.FindBookChanges(context.ChangeTracker.Entries().ToList(), context);
//VERIFY
changes.Single().BookId.ShouldNotEqual(Guid.Empty);
changes.Single().State.ShouldEqual(EntityState.Modified);
}
}
public void TestUpdateViaAuthorChangeTwoBooksOk()
{
//SETUP
var options = SqliteInMemory.CreateOptions <SqlDbContext>();
using (var context = new SqlDbContext(options))
{
context.Database.EnsureCreated();
context.SeedDatabaseFourBooks();
}
using (var context = new SqlDbContext(options))
{
//ATTEMPT
var author = context.Authors.Single(x => x.Name == "Martin Fowler");
author.Name = "Different Name";
var changes = BookChangeInfo.FindBookChanges(context.ChangeTracker.Entries().ToList(), context);
//VERIFY
changes.Count.ShouldEqual(2);
changes.All(x => x.State == EntityState.Modified).ShouldBeTrue();
}
}
public void TestUpdateViaAuthorChangeOneBookOk()
{
//SETUP
var options = SqliteInMemory.CreateOptions <SqlDbContext>();
using (var context = new SqlDbContext(options))
{
context.Database.EnsureCreated();
context.SeedDatabaseFourBooks();
}
using (var context = new SqlDbContext(options))
{
//ATTEMPT
var author = context.Authors.Single(x => x.Name == "Future Person");
author.Name = "Different Name";
var changes = BookChangeInfo.FindBookChanges(context.ChangeTracker.Entries().ToList(), context);
//VERIFY
changes.Single().BookId.ShouldNotEqual(Guid.Empty);
changes.Single().State.ShouldEqual(EntityState.Modified);
}
}
public void TestUpdateViaNonBookEntityOk()
{
//SETUP
var options = SqliteInMemory.CreateOptions <SqlDbContext>();
using (var context = new SqlDbContext(options))
{
context.Database.EnsureCreated();
context.SeedDatabaseFourBooks();
}
using (var context = new SqlDbContext(options))
{
//ATTEMPT
var book = context.Books.Include(x => x.Reviews).First();
book.AddReview(5, "test", "test");
var changes = BookChangeInfo.FindBookChanges(context.ChangeTracker.Entries().ToList(), context);
//VERIFY
changes.Single().BookId.ShouldNotEqual(Guid.Empty);
changes.Single().State.ShouldEqual(EntityState.Modified);
}
}
/// <summary>
/// This MUST be called before SavChanges. It finds any Book changes
/// </summary>
/// <returns>true if there are BookChanges that need projecting to NoSQL database</returns>
public bool FindBookChangesToProjectToNoSql(SqlDbContext sqlContext)
{
_bookChanges = BookChangeInfo.FindBookChanges(sqlContext.ChangeTracker.Entries().ToList(), sqlContext);
return(_bookChanges.Any());
}
/// <summary>
/// This MUST be called before SavChanges. It finds any Book changes
/// </summary>
/// <returns>true if there are BookChanges that need projecting to NoSQL database</returns>
public int FindNumBooksChanged(SqlDbContext sqlContext)
{
_bookChanges = BookChangeInfo.FindBookChanges(sqlContext.ChangeTracker.Entries().ToList(), sqlContext);
return(_bookChanges.Count());
}
