prysm-pulse/beacon-chain/execution/prometheus_test.go
terence 5a66807989
Update to V5 (#13622)
* First take at updating everything to v5

* Patch gRPC gateway to use prysm v5

Fix patch

* Update go ssz

---------

Co-authored-by: Preston Van Loon <pvanloon@offchainlabs.com>
2024-02-15 05:46:47 +00:00

54 lines
2.3 KiB
Go

package execution
import (
"context"
"testing"
"time"
"github.com/prometheus/client_golang/prometheus"
"github.com/prysmaticlabs/prysm/v5/testing/assert"
)
// TestCleanup ensures that the cleanup function unregisters the prometheus.Collection
// also tests the interchangability of the explicit prometheus Register/Unregister
// and the implicit methods within the collector implementation
func TestCleanup(t *testing.T) {
ctx := context.Background()
pc, err := NewPowchainCollector(ctx)
assert.NoError(t, err, "Unexpected error calling NewPowchainCollector")
unregistered := pc.unregister()
assert.Equal(t, true, unregistered, "PowchainCollector.unregister did not return true (via prometheus.DefaultRegistry)")
// PowchainCollector is a prometheus.Collector, so we should be able to register it again
err = prometheus.Register(pc)
assert.NoError(t, err, "Got error from prometheus.Register after unregistering PowchainCollector")
// even if it somehow gets registered somewhere else, unregister should work
unregistered = pc.unregister()
assert.Equal(t, true, unregistered, "PowchainCollector.unregister failed on the second attempt")
// and so we should be able to register it again
err = prometheus.Register(pc)
assert.NoError(t, err, "Got error from prometheus.Register on the second attempt")
// ok clean it up one last time for real :)
unregistered = prometheus.Unregister(pc)
assert.Equal(t, true, unregistered, "prometheus.Unregister failed to unregister PowchainCollector on final cleanup")
}
// TestCancelation tests that canceling the context passed into
// NewPowchainCollector cleans everything up as expected. This
// does come at the cost of an extra channel cluttering up
// PowchainCollector, just for this test.
func TestCancelation(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
pc, err := NewPowchainCollector(ctx)
assert.NoError(t, err, "Unexpected error calling NewPowchainCollector")
ticker := time.NewTicker(10 * time.Second)
cancel()
select {
case <-ticker.C:
t.Error("Hit timeout waiting for cancel() to cleanup PowchainCollector")
case <-pc.finishChan:
break
}
err = prometheus.Register(pc)
assert.NoError(t, err, "Got error from prometheus.Register after unregistering PowchainCollector through canceled context")
}