mirror of
https://source.quilibrium.com/quilibrium/ceremonyclient.git
synced 2024-11-10 18:25:17 +00:00
123 lines
3.5 KiB
Go
123 lines
3.5 KiB
Go
package blossomsub
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import (
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"context"
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"fmt"
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"math"
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"testing"
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"time"
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"github.com/libp2p/go-libp2p/core/peer"
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)
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func TestBackoff_Update(t *testing.T) {
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id1 := peer.ID("peer-1")
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id2 := peer.ID("peer-2")
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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size := 10
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cleanupInterval := 5 * time.Second
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maxBackoffAttempts := 10
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b := newBackoff(ctx, size, cleanupInterval, maxBackoffAttempts)
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if len(b.info) > 0 {
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t.Fatal("non-empty info map for backoff")
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}
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if d, err := b.updateAndGet(id1); d != time.Duration(0) || err != nil {
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t.Fatalf("invalid initialization: %v, \t, %s", d, err)
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}
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if d, err := b.updateAndGet(id2); d != time.Duration(0) || err != nil {
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t.Fatalf("invalid initialization: %v, \t, %s", d, err)
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}
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for i := 0; i < maxBackoffAttempts-1; i++ {
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got, err := b.updateAndGet(id1)
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if err != nil {
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t.Fatalf("unexpected error post update: %s", err)
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}
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expected := time.Duration(math.Pow(BackoffMultiplier, float64(i)) *
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float64(MinBackoffDelay+MaxBackoffJitterCoff*time.Millisecond))
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if expected > MaxBackoffDelay {
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expected = MaxBackoffDelay
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}
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if expected < got { // considering jitter, expected backoff must always be greater than or equal to actual.
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t.Fatalf("invalid backoff result, expected: %v, got: %v", expected, got)
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}
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}
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// trying once more beyond the threshold, hence expecting exceeding threshold
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if _, err := b.updateAndGet(id1); err == nil {
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t.Fatalf("expected an error for going beyond threshold but got nil")
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}
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got, err := b.updateAndGet(id2)
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if err != nil {
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t.Fatalf("unexpected error post update: %s", err)
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}
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if got != MinBackoffDelay {
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t.Fatalf("invalid backoff result, expected: %v, got: %v", MinBackoffDelay, got)
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}
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// sets last tried of id2 to long ago that it resets back upon next try.
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// update attempts on id2 are below threshold, hence peer should never go beyond backoff attempt threshold.
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b.info[id2].lastTried = time.Now().Add(-TimeToLive)
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got, err = b.updateAndGet(id2)
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if err != nil {
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t.Fatalf("unexpected error post update: %s", err)
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}
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if got != time.Duration(0) {
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t.Fatalf("invalid ttl expiration, expected: %v, got: %v", time.Duration(0), got)
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}
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if len(b.info) != 2 {
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t.Fatalf("pre-invalidation attempt, info map size mismatch, expected: %d, got: %d", 2, len(b.info))
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}
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}
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func TestBackoff_Clean(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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size := 10
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cleanupInterval := 2 * time.Second
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maxBackoffAttempts := 100 // setting attempts to a high number hence testing cleanup logic.
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b := newBackoff(ctx, size, cleanupInterval, maxBackoffAttempts)
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for i := 0; i < size; i++ {
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id := peer.ID(fmt.Sprintf("peer-%d", i))
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_, err := b.updateAndGet(id)
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if err != nil {
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t.Fatalf("unexpected error post update: %s", err)
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}
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b.info[id].lastTried = time.Now().Add(-TimeToLive) // enforces expiry
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}
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if len(b.info) != size {
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t.Fatalf("info map size mismatch, expected: %d, got: %d", size, len(b.info))
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}
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// waits for a cleanup loop to kick-in
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time.Sleep(2 * cleanupInterval)
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// next update should trigger cleanup
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got, err := b.updateAndGet(peer.ID("some-new-peer"))
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if err != nil {
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t.Fatalf("unexpected error post update: %s", err)
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}
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if got != time.Duration(0) {
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t.Fatalf("invalid backoff result, expected: %v, got: %v", time.Duration(0), got)
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}
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// except "some-new-peer" every other records must be cleaned up
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if len(b.info) != 1 {
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t.Fatalf("info map size mismatch, expected: %d, got: %d", 1, len(b.info))
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}
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}
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