micro/events/store/store_test.go

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package store
import (
"testing"
"github.com/google/uuid"
"github.com/micro/go-micro/v3/events"
"github.com/stretchr/testify/assert"
)
func TestStore(t *testing.T) {
store := NewStore()
testData := []events.Event{
{ID: uuid.New().String(), Topic: "foo"},
{ID: uuid.New().String(), Topic: "foo"},
{ID: uuid.New().String(), Topic: "bar"},
}
// write the records to the store
t.Run("Write", func(t *testing.T) {
for _, event := range testData {
err := store.Write(&event)
assert.Nilf(t, err, "Writing an event should not return an error")
}
})
// should not be able to read events from a blank topic
t.Run("ReadMissingTopic", func(t *testing.T) {
evs, err := store.Read("")
assert.Equal(t, err, events.ErrMissingTopic, "Reading a blank topic should return an error")
assert.Nil(t, evs, "No events should be returned")
})
// should only get the events from the topic requested
t.Run("ReadTopic", func(t *testing.T) {
evs, err := store.Read("foo")
assert.Nilf(t, err, "No error should be returned")
assert.Len(t, evs, 2, "Only the events for this topic should be returned")
})
// limits should be honoured
t.Run("ReadTopicLimit", func(t *testing.T) {
evs, err := store.Read("foo", events.ReadLimit(1))
assert.Nilf(t, err, "No error should be returned")
assert.Len(t, evs, 1, "The result should include no more than the read limit")
})
}