public async Task It_should_rollback_both_entity_and_change_log_within_sync_flow()
{
// Given
var id = Guid.NewGuid();
var user = new UserAggregate(id, "Bond");
var changeLog = user.Changes.GetUncommittedChanges().ToList();
using var db = NewDbContext();
db.Users.Add(user);
await db.SaveChangesAsync();
// When
using (var tran = TransactionExt.Begin(IsolationLevel.ReadCommitted))
{
user.Rename("James Bond");
db.SaveChanges();
}
// Then
db.DetachAll();
var savedUser = await db.Users.FindAsync(id);
var savedChangeLog = await LoadChangeLog(user.StreamId);
savedUser.Should().BeEquivalentTo(new UserAggregate(id, "Bond"));
savedChangeLog.Should().HaveSameCount(changeLog);
for (var i = 0; i < savedChangeLog.Count; i++)
{
savedChangeLog[i].Should().BeEquivalentTo((object)changeLog[i]);
savedChangeLog[i].Should().BeOfType(changeLog[i].GetType());
}
}
public async Task It_should_update_entity_and_record_change_log()
{
// Given
var user = new UserAggregate(Guid.NewGuid(), "Bond");
using var db = NewDbContext();
db.Users.Add(user);
await db.SaveChangesAsync();
// When
user.Rename("James Bond");
var changeLog = user.Changes.GetUncommittedChanges().ToList();
await db.SaveChangesAsync();
// Then
db.DetachAll();
var savedUser = await db.Users.FindAsync(user.Id);
var savedChangeLog = (await LoadChangeLog(user.StreamId)).AsEnumerable()
.Reverse()
.Take(changeLog.Count)
.Reverse()
.ToList();
savedUser.Should().BeEquivalentTo(user);
for (var i = 0; i < savedChangeLog.Count; i++)
{
savedChangeLog[i].Should().BeEquivalentTo((object)changeLog[i]);
savedChangeLog[i].Should().BeOfType(changeLog[i].GetType());
}
}
public void It_should_record_change_log_when_entity_is_updated()
{
// Given
var id = Random.NextGuid();
var name = Random.GetString();
var changedName = Random.GetString();
var user = new UserAggregate(id, name);
user.Changes.MarkChangesAsCommitted();
// When
user.Rename(changedName);
// Then
var changes = user.Changes.GetUncommittedChanges().ToList();
Assert.That(changes, Has.Count.EqualTo(1));
Assert.That(changes[0], Is.TypeOf <UserNameChanged>());
var evt = (UserNameChanged)changes[0];
Assert.That(evt.Id, Is.EqualTo(id));
Assert.That(evt.Name, Is.EqualTo(changedName));
Assert.That(evt.Version, Is.EqualTo(2));
Assert.That(user.Version, Is.EqualTo(2));
}
