From e476d19d5e9e2611c57f0f9d47bc0f426433eae6 Mon Sep 17 00:00:00 2001
From: David Stainton <dstainton@elixxir.io>
Date: Tue, 30 Aug 2022 18:16:02 -0400
Subject: [PATCH] Add test TestMutateTimestampDeltaAverage
---
channels/mutateTimestamp_test.go | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/channels/mutateTimestamp_test.go b/channels/mutateTimestamp_test.go
index 843757c3e..ba58728c4 100644
--- a/channels/mutateTimestamp_test.go
+++ b/channels/mutateTimestamp_test.go
@@ -1,7 +1,11 @@
package channels
import (
+ "crypto/rand"
+ "testing"
"time"
+
+ "gitlab.com/elixxir/crypto/channel"
)
// withinMutationWindow is a utility test function to check if a mutated
@@ -12,3 +16,30 @@ func withinMutationWindow(raw, mutated time.Time) bool {
return mutated.After(lowerBound) && mutated.Before(upperBound)
}
+
+func abs(n int64) int64 {
+ if n < 0 {
+ return -n
+ }
+ return n
+}
+
+func TestMutateTimestampDeltaAverage(t *testing.T) {
+ samples := 10000
+ t1 := time.Now()
+ sum := int64(0)
+
+ for i := 0; i < samples; i++ {
+ var msgID channel.MessageID
+ rand.Read(msgID[:])
+ t2 := mutateTimestamp(t1, msgID)
+ delta := t2.Sub(t1)
+ sum += abs(int64(delta))
+ }
+
+ avg := sum / int64(samples)
+ diff := abs(avg - 2502865)
+ if diff > 30000 {
+ t.Fatal()
+ }
+}
--
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