test: Fix test cache issue

The documentation did not match the implementation, no coins
were mined to the OP_TRUE address.

1 files changed, 3 insertions, 2 deletions

diff --git a/test/functional/test_framework/test_framework.py b/test/functional/test_framework/test_framework.py
index 02eb10b5a4..0ff4ee0a62 100755
--- a/test/functional/test_framework/test_framework.py
+++ b/test/functional/test_framework/test_framework.py
@@ -739,11 +739,12 @@ class BitcoinTestFramework(metaclass=BitcoinTestMetaClass):
             # block in the cache does not age too much (have an old tip age).
             # This is needed so that we are out of IBD when the test starts,
             # see the tip age check in IsInitialBlockDownload().
-            gen_addresses = [k.address for k in TestNode.PRIV_KEYS] + [ADDRESS_BCRT1_P2WSH_OP_TRUE]
+            gen_addresses = [k.address for k in TestNode.PRIV_KEYS][:3] + [ADDRESS_BCRT1_P2WSH_OP_TRUE]
+            assert_equal(len(gen_addresses), 4)
             for i in range(8):
                 cache_node.generatetoaddress(
                     nblocks=25 if i != 7 else 24,
-                    address=gen_addresses[i % 4],
+                    address=gen_addresses[i % len(gen_addresses)],
                 )
 
             assert_equal(cache_node.getblockchaininfo()["blocks"], 199)