public async Task SaveEvents_updates_existing_UniqueIndexedProperty_correctly(
FakeUserCreated created,
FakeUsernameChanged usernameChanged)
{
// Arrange
RaiseEvents(userId, created);
await sut.SaveEvents <FakeUser>(new[] { created });
RaiseEvents(userId, 1, usernameChanged);
// Act
await sut.SaveEvents <FakeUser>(new[] { usernameChanged });
// Assert
using (var db = new DataContext())
{
UniqueIndexedProperty actual = await db
.UniqueIndexedProperties
.Where(
p =>
p.AggregateId == userId &&
p.PropertyName == nameof(FakeUserCreated.Username))
.SingleOrDefaultAsync();
actual.Should().NotBeNull();
actual.PropertyValue.Should().Be(usernameChanged.Username);
actual.Version.Should().Be(usernameChanged.Version);
}
}
public async Task SaveEvents_does_not_insert_UniqueIndexedProperty_if_property_value_is_null()
{
var created = new FakeUserCreated {
Username = null
};
var events = new DomainEvent[] { created };
RaiseEvents(userId, events);
await sut.SaveEvents <FakeUser>(events);
using (var db = new DataContext())
{
UniqueIndexedProperty actual = await db
.UniqueIndexedProperties
.Where(
p =>
p.AggregateType == typeof(FakeUser).FullName &&
p.PropertyName == nameof(FakeUserCreated.Username) &&
p.PropertyValue == created.Username)
.SingleOrDefaultAsync();
actual.Should().BeNull();
}
}
public async Task SaveEvents_removes_existing_UniqueIndexedProperty_if_property_value_is_null(
FakeUserCreated created,
FakeUsernameChanged usernameChanged)
{
// Arrange
RaiseEvents(userId, created);
await sut.SaveEvents <FakeUser>(new[] { created });
usernameChanged.Username = null;
RaiseEvents(userId, 1, usernameChanged);
// Act
await sut.SaveEvents <FakeUser>(new[] { usernameChanged });
// Assert
using (var db = new DataContext())
{
UniqueIndexedProperty actual = await db
.UniqueIndexedProperties
.Where(
p =>
p.AggregateType == typeof(FakeUser).FullName &&
p.PropertyName == nameof(FakeUserCreated.Username) &&
p.PropertyValue == created.Username)
.SingleOrDefaultAsync();
actual.Should().BeNull();
}
}
public async Task SaveEvents_inserts_UniqueIndexedProperty_for_new_property(
FakeUserCreated created)
{
var events = new DomainEvent[] { created };
RaiseEvents(userId, events);
await sut.SaveEvents <FakeUser>(events);
using (var db = new DataContext())
{
UniqueIndexedProperty actual = await db
.UniqueIndexedProperties
.Where(
p =>
p.AggregateType == typeof(FakeUser).FullName &&
p.PropertyName == nameof(FakeUserCreated.Username) &&
p.PropertyValue == created.Username)
.SingleOrDefaultAsync();
actual.Should().NotBeNull();
actual.AggregateId.Should().Be(userId);
actual.Version.Should().Be(created.Version);
}
}
public async Task SaveEvents_does_not_insert_UniqueIndexedProperty_if_property_value_is_null()
{
// Arrange
var userId = Guid.NewGuid();
var created = new FakeUserCreated {
Username = null
};
created.Raise(userId);
var sut = new SqlEventStore(
() => new FakeEventStoreDbContext(_dbContextOptions),
new JsonMessageSerializer());
// Act
await sut.SaveEvents <FakeUser>(new DomainEvent[] { created });
// Assert
using (var db = new FakeEventStoreDbContext(_dbContextOptions))
{
UniqueIndexedProperty actual = await db
.UniqueIndexedProperties
.Where(
p =>
p.AggregateType == typeof(FakeUser).FullName &&
p.PropertyName == nameof(FakeUserCreated.Username) &&
p.PropertyValue == created.Username)
.SingleOrDefaultAsync();
actual.Should().BeNull();
}
}
public async Task SaveEvents_inserts_UniqueIndexedProperty_with_value_of_latest_indexed_event()
{
// Arrange
var userId = Guid.NewGuid();
var created = new FakeUserCreated();
var usernameChanged = new FakeUsernameChanged();
var events = new DomainEvent[] { created, usernameChanged };
events.Raise(userId);
var sut = new SqlEventStore(
() => new FakeEventStoreDbContext(_dbContextOptions),
new JsonMessageSerializer());
// Act
await sut.SaveEvents <FakeUser>(events);
// Assert
using (var db = new FakeEventStoreDbContext(_dbContextOptions))
{
UniqueIndexedProperty actual = await db
.UniqueIndexedProperties
.Where(
p =>
p.AggregateId == userId &&
p.PropertyName == nameof(FakeUserCreated.Username))
.SingleOrDefaultAsync();
actual.PropertyValue.Should().Be(usernameChanged.Username);
actual.Version.Should().Be(usernameChanged.Version);
}
}
private async Task UpdateUniqueIndexedProperties <T>(
EventStoreDbContext context,
Guid sourceId,
List <IDomainEvent> events,
CancellationToken cancellationToken)
where T : class, IEventSourced
{
Dictionary <string, UniqueIndexedProperty> restored = await context
.UniqueIndexedProperties
.Where(
p =>
p.AggregateType == typeof(T).FullName &&
p.AggregateId == sourceId)
.ToDictionaryAsync(p => p.PropertyName, cancellationToken)
.ConfigureAwait(false);
var properties = new List <UniqueIndexedProperty>();
foreach (var indexedEvent in events.OfType <IUniqueIndexedDomainEvent>())
{
foreach (string name in
indexedEvent.UniqueIndexedProperties.Keys)
{
UniqueIndexedProperty property;
if (restored.TryGetValue(name, out property))
{
context.UniqueIndexedProperties.Remove(property);
}
property = properties.Find(p => p.PropertyName == name);
if (property != null)
{
properties.Remove(property);
}
string value = indexedEvent.UniqueIndexedProperties[name];
if (value == null)
{
continue;
}
property = new UniqueIndexedProperty
{
AggregateType = typeof(T).FullName,
PropertyName = name,
PropertyValue = value,
AggregateId = sourceId,
Version = indexedEvent.Version
};
properties.Add(property);
}
}
context.UniqueIndexedProperties.AddRange(properties);
}
private async Task <Guid?> FindIdByProperty <T>(
string name,
string value,
CancellationToken cancellationToken)
where T : class, IEventSourced
{
using (EventStoreDbContext context = _dbContextFactory.Invoke())
{
IQueryable <UniqueIndexedProperty> query =
from p in context.UniqueIndexedProperties
where
p.AggregateType == typeof(T).FullName &&
p.PropertyName == name &&
p.PropertyValue == value
select p;
UniqueIndexedProperty property = await query
.SingleOrDefaultAsync(cancellationToken)
.ConfigureAwait(false);
return(property?.AggregateId);
}
}
public async Task SaveEvents_inserts_UniqueIndexedProperty_with_value_of_latest_indexed_event(
FakeUserCreated created,
FakeUsernameChanged usernameChanged)
{
var events = new DomainEvent[] { created, usernameChanged };
RaiseEvents(userId, events);
await sut.SaveEvents <FakeUser>(events);
using (var db = new DataContext())
{
UniqueIndexedProperty actual = await db
.UniqueIndexedProperties
.Where(
p =>
p.AggregateId == userId &&
p.PropertyName == nameof(FakeUserCreated.Username))
.SingleOrDefaultAsync();
actual.PropertyValue.Should().Be(usernameChanged.Username);
actual.Version.Should().Be(usernameChanged.Version);
}
}
