From 11d584e67b4232bc7bbf447d0e43e0ef8ff095d8 Mon Sep 17 00:00:00 2001
From: Marius van der Wijden <m.vanderwijden@live.de>
Date: Mon, 4 Jul 2022 11:24:06 +0200
Subject: [PATCH] core: allow external code to set the block validator for
 malicious tests (#25119)

* core: don't validate state

* core: allow external validator

* core: revert

* core: comments

* Update blockchain_reader.go

* core: move SetValidator to blockchain.go

* core: rename method
---
 core/blockchain.go | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/core/blockchain.go b/core/blockchain.go
index 0a5ba1da0b27..352871390712 100644
--- a/core/blockchain.go
+++ b/core/blockchain.go
@@ -2374,3 +2374,10 @@ func (bc *BlockChain) InsertHeaderChain(chain []*types.Header, checkFreq int) (i
 	_, err := bc.hc.InsertHeaderChain(chain, start, bc.forker)
 	return 0, err
 }
+
+// SetBlockValidatorForTesting sets the current validator.
+// This method can be used to force an invalid blockchain to be verified for tests.
+// This method is unsafe and should only be used before block import starts.
+func (bc *BlockChain) SetBlockValidatorForTesting(v Validator) {
+	bc.validator = v
+}