From 218afc6054c0b76549531c4aad26d539b5db3c20 Mon Sep 17 00:00:00 2001
From: Guillaume Ballet <3272758+gballet@users.noreply.github.com>
Date: Sat, 3 Feb 2024 09:16:29 +0100
Subject: [PATCH] test: check current and new values in state processor witness

---
 core/state_processor_test.go | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/core/state_processor_test.go b/core/state_processor_test.go
index e152338ac6e3..7317bb01217f 100644
--- a/core/state_processor_test.go
+++ b/core/state_processor_test.go
@@ -661,6 +661,13 @@ func TestProcessVerkleInvalidContractCreation(t *testing.T) {
 			if stemStateDiff.SuffixDiffs[0].Suffix != 64 {
 				t.Fatalf("invalid suffix diff value found for BLOCKHASH contract: %d != 64", stemStateDiff.SuffixDiffs[0].Suffix)
 			}
+			// check that the "current value" is nil and that the new value isn't.
+			if stemStateDiff.SuffixDiffs[0].CurrentValue != nil {
+				t.Fatalf("non-nil current value in BLOCKHASH contract insert: %x", stemStateDiff.SuffixDiffs[0].CurrentValue)
+			}
+			if stemStateDiff.SuffixDiffs[0].NewValue == nil {
+				t.Fatalf("nil new value in BLOCKHASH contract insert")
+			}
 		} else {
 			for _, suffixDiff := range stemStateDiff.SuffixDiffs {
 				if suffixDiff.Suffix > 4 {