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test(agentcompat): harden deterministic fixtures

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Co-authored-by: naiba/CloudCode <hi+cloudcode@nai.ba>
This commit is contained in:
naiba
2026-07-20 04:42:03 +00:00
co-authored by naiba/CloudCode
parent fcf58b0b4b
commit 0543995ec3
9 changed files with 717 additions and 54 deletions
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integration/agentcompat/internal/fixture/payload_test.go
+6 -14
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@@ -7,7 +7,6 @@ import (
"errors"
"fmt"
"io"
"runtime"
"testing"
"github.com/nezhahq/nezha/integration/agentcompat/internal/contract"
@@ -17,19 +16,13 @@ func TestFixture_StreamsExact100MiB(t *testing.T) {
// Given
payload, err := NewPayload(contract.DefaultSeed, contract.TransferBytes)
requireNoFixtureError(t, err)
runtime.GC()
var before runtime.MemStats
runtime.ReadMemStats(&before)
// When
digest, err := VerifyPayload(payload.Reader(), contract.TransferBytes)
digest, peakRetainedHeap, err := verifyPayloadPeakRetainedHeap(payload.Reader(), contract.TransferBytes)
requireNoFixtureError(t, err)
stableDigest, err := VerifyPayload(payload.Reader(), contract.TransferBytes)
requireNoFixtureError(t, err)
independentDigest := independentlyHashPayload(contract.DefaultSeed, contract.TransferBytes)
runtime.GC()
var after runtime.MemStats
runtime.ReadMemStats(&after)
// Then
if digest.Bytes != contract.TransferBytes {
@@ -41,14 +34,13 @@ func TestFixture_StreamsExact100MiB(t *testing.T) {
if digest.SHA256 != independentDigest {
t.Fatalf("payload SHA does not match independent generator: %s", digest.Hex())
}
var retained uint64
if after.HeapAlloc > before.HeapAlloc {
retained = after.HeapAlloc - before.HeapAlloc
if peakRetainedHeap == 0 {
t.Fatal("peak retained heap measurement did not observe live streaming allocations")
}
if retained > contract.TransferHeapBytes {
t.Fatalf("retained heap = %d, limit = %d", retained, contract.TransferHeapBytes)
if peakRetainedHeap > contract.TransferHeapBytes {
t.Fatalf("peak retained heap = %d, limit = %d", peakRetainedHeap, contract.TransferHeapBytes)
}
t.Logf("bytes=%d sha256=%s retained_heap=%d", digest.Bytes, digest.Hex(), retained)
t.Logf("bytes=%d sha256=%s peak_retained_heap=%d", digest.Bytes, digest.Hex(), peakRetainedHeap)
}
func independentlyHashPayload(seed contract.Seed, size uint64) [sha256.Size]byte {