multiple tries

backend/v3/storage/cache/pruner_test.go

@@ -0,0 +1,43 @@
+package cache
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/jonboulle/clockwork"
+	"github.com/stretchr/testify/assert"
+)
+
+type testPruner struct {
+	called chan struct{}
+}
+
+func (p *testPruner) Prune(context.Context) error {
+	p.called <- struct{}{}
+	return nil
+}
+
+func TestAutoPruneConfig_startAutoPrune(t *testing.T) {
+	c := AutoPruneConfig{
+		Interval: time.Second,
+		Timeout:  time.Millisecond,
+	}
+	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
+	defer cancel()
+
+	pruner := testPruner{
+		called: make(chan struct{}),
+	}
+	clock := clockwork.NewFakeClock()
+	close := c.startAutoPrune(ctx, &pruner, PurposeAuthzInstance, clock)
+	defer close()
+	clock.Advance(time.Second)
+
+	select {
+	case _, ok := <-pruner.called:
+		assert.True(t, ok)
+	case <-ctx.Done():
+		t.Fatal(ctx.Err())
+	}
+}