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-rw-r--r--src/wallet/test/wallet_tests.cpp44
1 files changed, 44 insertions, 0 deletions
diff --git a/src/wallet/test/wallet_tests.cpp b/src/wallet/test/wallet_tests.cpp
index 46d9b5b238..5731a27e00 100644
--- a/src/wallet/test/wallet_tests.cpp
+++ b/src/wallet/test/wallet_tests.cpp
@@ -17,6 +17,7 @@
#include <validation.h>
#include <wallet/coincontrol.h>
#include <wallet/test/wallet_test_fixture.h>
+#include <policy/policy.h>
#include <boost/test/unit_test.hpp>
#include <univalue.h>
@@ -404,4 +405,47 @@ BOOST_FIXTURE_TEST_CASE(wallet_disableprivkeys, TestChain100Setup)
BOOST_CHECK(!wallet->GetKeyFromPool(pubkey, false));
}
+// Explicit calculation which is used to test the wallet constant
+// We get the same virtual size due to rounding(weight/4) for both use_max_sig values
+static size_t CalculateNestedKeyhashInputSize(bool use_max_sig)
+{
+ // Generate ephemeral valid pubkey
+ CKey key;
+ key.MakeNewKey(true);
+ CPubKey pubkey = key.GetPubKey();
+
+ // Generate pubkey hash
+ uint160 key_hash(Hash160(pubkey.begin(), pubkey.end()));
+
+ // Create inner-script to enter into keystore. Key hash can't be 0...
+ CScript inner_script = CScript() << OP_0 << std::vector<unsigned char>(key_hash.begin(), key_hash.end());
+
+ // Create outer P2SH script for the output
+ uint160 script_id(Hash160(inner_script.begin(), inner_script.end()));
+ CScript script_pubkey = CScript() << OP_HASH160 << std::vector<unsigned char>(script_id.begin(), script_id.end()) << OP_EQUAL;
+
+ // Add inner-script to key store and key to watchonly
+ CBasicKeyStore keystore;
+ keystore.AddCScript(inner_script);
+ keystore.AddKeyPubKey(key, pubkey);
+
+ // Fill in dummy signatures for fee calculation.
+ SignatureData sig_data;
+
+ if (!ProduceSignature(keystore, use_max_sig ? DUMMY_MAXIMUM_SIGNATURE_CREATOR : DUMMY_SIGNATURE_CREATOR, script_pubkey, sig_data)) {
+ // We're hand-feeding it correct arguments; shouldn't happen
+ assert(false);
+ }
+
+ CTxIn tx_in;
+ UpdateInput(tx_in, sig_data);
+ return (size_t)GetVirtualTransactionInputSize(tx_in);
+}
+
+BOOST_FIXTURE_TEST_CASE(dummy_input_size_test, TestChain100Setup)
+{
+ BOOST_CHECK_EQUAL(CalculateNestedKeyhashInputSize(false), DUMMY_NESTED_P2WPKH_INPUT_SIZE);
+ BOOST_CHECK_EQUAL(CalculateNestedKeyhashInputSize(true), DUMMY_NESTED_P2WPKH_INPUT_SIZE);
+}
+
BOOST_AUTO_TEST_SUITE_END()