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feat: add ranked season rollover policy

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This commit is contained in:
Josh Creek
2026-08-31 20:29:11 +01:00
parent 1793eb7621
commit cc2cd80a01
16 changed files with 688 additions and 249 deletions
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server/domain/probes_test.go
+30 -12
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@@ -9,32 +9,50 @@ import (
func TestValidateProbeRequiresOpaqueFreshNonceAndServerRTT(t *testing.T) {
now := time.Unix(100000, 0)
valid := ProbeEvidence{OpaqueLocation: []byte("opaque"), Nonce: []byte("nonce"), IssuedAt: now, Region: "EU", ServerRTT: 40 * time.Millisecond}
if err := ValidateProbe(valid, []byte("nonce"), now); err != nil { t.Fatal(err) }
if err := ValidateProbe(valid, []byte("nonce"), now); err != nil {
t.Fatal(err)
}
for name, invalid := range map[string]ProbeEvidence{
"empty location": {Nonce: []byte("nonce"), IssuedAt: now, Region: "EU"},
"wrong nonce": {OpaqueLocation: []byte("opaque"), Nonce: []byte("other"), IssuedAt: now, Region: "EU"},
"stale": {OpaqueLocation: []byte("opaque"), Nonce: []byte("nonce"), IssuedAt: now.Add(-ProbeFreshness - time.Nanosecond), Region: "EU"},
"empty location": {Nonce: []byte("nonce"), IssuedAt: now, Region: "EU"},
"wrong nonce": {OpaqueLocation: []byte("opaque"), Nonce: []byte("other"), IssuedAt: now, Region: "EU"},
"stale": {OpaqueLocation: []byte("opaque"), Nonce: []byte("nonce"), IssuedAt: now.Add(-ProbeFreshness - time.Nanosecond), Region: "EU"},
"client chosen negative RTT": {OpaqueLocation: []byte("opaque"), Nonce: []byte("nonce"), IssuedAt: now, Region: "EU", ServerRTT: -time.Millisecond},
} {
if err := ValidateProbe(invalid, []byte("nonce"), now); !errors.Is(err, ErrInvalidProbe) { t.Fatalf("%s error = %v", name, err) }
if err := ValidateProbe(invalid, []byte("nonce"), now); !errors.Is(err, ErrInvalidProbe) {
t.Fatalf("%s error = %v", name, err)
}
}
}
func TestDiscrepancyQuarantineAndFiveCleanRelease(t *testing.T) {
now := time.Unix(100000, 0)
var tracker DiscrepancyTracker
for i := 0; i < DiscrepancyLimit; i++ { tracker.RecordComparison(40*time.Millisecond, 100*time.Millisecond, now.Add(time.Duration(i)*time.Minute)) }
if !tracker.Quarantined { t.Fatal("three discrepancies did not quarantine samples") }
if err := tracker.PlacementAllowed(); !errors.Is(err, ErrProbeQuarantined) { t.Fatal("quarantine not enforced") }
for i := 0; i < CleanSamplesToRelease; i++ { tracker.RecordComparison(40*time.Millisecond, 45*time.Millisecond, now.Add(time.Hour+time.Duration(i)*time.Minute)) }
if tracker.Quarantined { t.Fatal("five clean samples did not release quarantine") }
for i := 0; i < DiscrepancyLimit; i++ {
tracker.RecordComparison(40*time.Millisecond, 100*time.Millisecond, now.Add(time.Duration(i)*time.Minute))
}
if !tracker.Quarantined {
t.Fatal("three discrepancies did not quarantine samples")
}
if err := tracker.PlacementAllowed(); !errors.Is(err, ErrProbeQuarantined) {
t.Fatal("quarantine not enforced")
}
for i := 0; i < CleanSamplesToRelease; i++ {
tracker.RecordComparison(40*time.Millisecond, 45*time.Millisecond, now.Add(time.Hour+time.Duration(i)*time.Minute))
}
if tracker.Quarantined {
t.Fatal("five clean samples did not release quarantine")
}
}
func TestDiscrepancyThresholdUsesLargerOfAbsoluteAndRelativeLimit(t *testing.T) {
now := time.Unix(100000, 0)
var tracker DiscrepancyTracker
tracker.RecordComparison(200*time.Millisecond, 250*time.Millisecond, now)
if tracker.Quarantined { t.Fatal("50ms discrepancy should be allowed when 30%% limit is 60ms") }
if tracker.Quarantined {
t.Fatal("50ms discrepancy should be allowed when 30%% limit is 60ms")
}
tracker.RecordComparison(200*time.Millisecond, 270*time.Millisecond, now.Add(time.Minute))
if len(tracker.BadSamples) != 1 { t.Fatal("70ms discrepancy should be recorded") }
if len(tracker.BadSamples) != 1 {
t.Fatal("70ms discrepancy should be recorded")
}
}