52 lines
860 B
Go
52 lines
860 B
Go
package event_test
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import (
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"encoding/json"
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"testing"
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"go.sour.is/ev/pkg/es/event"
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)
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type Agg struct {
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Value string
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event.AggregateRoot
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}
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var _ event.Aggregate = (*Agg)(nil)
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func (a *Agg) streamID() string {
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return "value-" + a.Value
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}
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// ApplyEvent applies the event to the aggrigate state
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func (a *Agg) ApplyEvent(lis ...event.Event) {
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for _, e := range lis {
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switch e := e.(type) {
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case *ValueApplied:
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a.Value = e.Value
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a.SetStreamID(a.streamID())
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}
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}
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}
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type ValueApplied struct {
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Value string
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event.IsEvent
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}
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var _ event.Event = (*ValueApplied)(nil)
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func (e *ValueApplied) MarshalBinary() ([]byte, error) {
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return json.Marshal(e)
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}
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func (e *ValueApplied) UnmarshalBinary(b []byte) error {
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return json.Unmarshal(b, e)
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}
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func TestAggregate(t *testing.T) {
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agg := &Agg{}
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event.Append(agg, &ValueApplied{Value: "one"})
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}
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