qa: Add wallet_encryption error tests

src/wallet/rpcwallet.cpp

@@ -2009,21 +2009,13 @@ static UniValue walletpassphrase(const JSONRPCRequest& request)
         nSleepTime = MAX_SLEEP_TIME;
     }
 
-    if (strWalletPass.length() > 0)
-    {
-        if (!pwallet->Unlock(strWalletPass)) {
-            throw JSONRPCError(RPC_WALLET_PASSPHRASE_INCORRECT, "Error: The wallet passphrase entered was incorrect.");
-        }
+    if (strWalletPass.empty()) {
+        throw JSONRPCError(RPC_INVALID_PARAMETER, "passphrase can not be empty");
+    }
+
+    if (!pwallet->Unlock(strWalletPass)) {
+        throw JSONRPCError(RPC_WALLET_PASSPHRASE_INCORRECT, "Error: The wallet passphrase entered was incorrect.");
     }
-    else
-        throw std::runtime_error(
-            RPCHelpMan{"walletpassphrase",
-                "Stores the wallet decryption key in memory for <timeout> seconds.",
-                {
-                    {"passphrase", RPCArg::Type::STR, false},
-                    {"timeout", RPCArg::Type::NUM, false},
-                }}
-                .ToString());
 
     pwallet->TopUpKeyPool();
 
@@ -2089,15 +2081,9 @@ static UniValue walletpassphrasechange(const JSONRPCRequest& request)
     strNewWalletPass.reserve(100);
     strNewWalletPass = request.params[1].get_str().c_str();
 
-    if (strOldWalletPass.length() < 1 || strNewWalletPass.length() < 1)
-        throw std::runtime_error(
-            RPCHelpMan{"walletpassphrasechange",
-                "Changes the wallet passphrase from <oldpassphrase> to <newpassphrase>.",
-                {
-                    {"oldpassphrase", RPCArg::Type::STR, false},
-                    {"newpassphrase", RPCArg::Type::STR, false},
-                }}
-                .ToString());
+    if (strOldWalletPass.empty() || strNewWalletPass.empty()) {
+        throw JSONRPCError(RPC_INVALID_PARAMETER, "passphrase can not be empty");
+    }
 
     if (!pwallet->ChangeWalletPassphrase(strOldWalletPass, strNewWalletPass)) {
         throw JSONRPCError(RPC_WALLET_PASSPHRASE_INCORRECT, "Error: The wallet passphrase entered was incorrect.");
@@ -2200,14 +2186,9 @@ static UniValue encryptwallet(const JSONRPCRequest& request)
     strWalletPass.reserve(100);
     strWalletPass = request.params[0].get_str().c_str();
 
-    if (strWalletPass.length() < 1)
-        throw std::runtime_error(
-            RPCHelpMan{"encryptwallet",
-                "Encrypts the wallet with <passphrase>.",
-                {
-                    {"passphrase", RPCArg::Type::STR, false},
-                }}
-                .ToString());
+    if (strWalletPass.empty()) {
+        throw JSONRPCError(RPC_INVALID_PARAMETER, "passphrase can not be empty");
+    }
 
     if (!pwallet->EncryptWallet(strWalletPass)) {
         throw JSONRPCError(RPC_WALLET_ENCRYPTION_FAILED, "Error: Failed to encrypt the wallet.");

test/functional/wallet_encryption.py

@@ -31,12 +31,18 @@ class WalletEncryptionTest(BitcoinTestFramework):
         privkey = self.nodes[0].dumpprivkey(address)
         assert_equal(privkey[:1], "c")
         assert_equal(len(privkey), 52)
+        assert_raises_rpc_error(-15, "Error: running with an unencrypted wallet, but walletpassphrase was called", self.nodes[0].walletpassphrase, 'ff', 1)
+        assert_raises_rpc_error(-15, "Error: running with an unencrypted wallet, but walletpassphrasechange was called.", self.nodes[0].walletpassphrasechange, 'ff', 'ff')
 
         # Encrypt the wallet
+        assert_raises_rpc_error(-8, "passphrase can not be empty", self.nodes[0].encryptwallet, '')
         self.nodes[0].encryptwallet(passphrase)
 
         # Test that the wallet is encrypted
         assert_raises_rpc_error(-13, "Please enter the wallet passphrase with walletpassphrase first", self.nodes[0].dumpprivkey, address)
+        assert_raises_rpc_error(-15, "Error: running with an encrypted wallet, but encryptwallet was called.", self.nodes[0].encryptwallet, 'ff')
+        assert_raises_rpc_error(-8, "passphrase can not be empty", self.nodes[0].walletpassphrase, '', 1)
+        assert_raises_rpc_error(-8, "passphrase can not be empty", self.nodes[0].walletpassphrasechange, '', 'ff')
 
         # Check that walletpassphrase works
         self.nodes[0].walletpassphrase(passphrase, 2)