public void CanApplyAnEventWithNoTransform()
{
var existing = new ExampleProjection();
var @event = new ExampleEvent
{
Id = Guid.NewGuid(),
AppendValue = "AppendingValue"
};
var buildUp = BuildUp.Initialize(_ =>
{
_.RegisterApply(_apply);
});
var projectedValue = buildUp.Project(existing, @event);
Assert.Equal(projectedValue.Id, @event.Id);
Assert.Equal(projectedValue.SomeValue, @event.AppendValue);
}
public void CanApplyMultipleEvents()
{
var existing = new ExampleProjection();
var @event = new ExampleEvent
{
Id = Guid.NewGuid(),
AppendValue = "AppendingValue"
};
var secondEvent = new ExampleEvent
{
Id = @event.Id,
AppendValue = "MoreValuesToAdd"
};
var buildUp = BuildUp.Initialize(_ =>
{
_.RegisterApply(_apply);
});
var projectedValue = buildUp.Project(existing, @event, secondEvent);
Assert.Equal(projectedValue.Id, @event.Id);
Assert.Equal(projectedValue.SomeValue, $"{@event.AppendValue}{secondEvent.AppendValue}");
}
public void AutomaticallyPerformsTransformIfPresent()
{
var existing = new ExampleProjection();
var @event = new ExampleEvent
{
Id = Guid.NewGuid(),
AppendValue = "AppendingValue"
};
var secondEvent = new ObsoleteEvent()
{
Id = @event.Id,
NewValue = "MoreValuesToAdd"
};
var buildUp = BuildUp.Initialize(_ =>
{
_.RegisterApply(_apply);
_.RegisterEventTransform(_transform);
});
var projectedValue = buildUp.Project(existing, @event, secondEvent);
Assert.Equal(projectedValue.Id, @event.Id);
Assert.Equal(projectedValue.SomeValue, $"{@event.AppendValue}{secondEvent.NewValue}");
}
public void ChainsTransformsToFindAWayToApply()
{
var existing = new ExampleProjection();
var @event = new ExampleEvent
{
Id = Guid.NewGuid(),
AppendValue = "AppendingValue"
};
var secondEvent = new ChainedEvent()
{
Id = @event.Id,
OldValue = "MoreValuesToAdd"
};
var buildUp = BuildUp.Initialize(_ =>
{
_.RegisterApply(_apply);
_.RegisterEventTransform(_transform);
_.RegisterEventTransform(_chainedTransform);
});
var projectedValue = buildUp.Project(existing, @event, secondEvent);
Assert.Equal(projectedValue.Id, @event.Id);
Assert.Equal(projectedValue.SomeValue, $"{@event.AppendValue}{secondEvent.OldValue}");
}
