rpc: treat univalue type check error as RPC_TYPE_ERROR, not RPC_MISC_ERROR

By throwing a custom exception from `Univalue::checkType` (instead of a plain
std::runtime_error) and catching it on the RPC server request handler.

So we properly return RPC_TYPE_ERROR (-3) on arg type errors and
not the general RPC_MISC_ERROR (-1).

8 files changed, 18 insertions, 18 deletions

diff --git a/test/functional/mining_prioritisetransaction.py b/test/functional/mining_prioritisetransaction.py
index 3b75b2bc2d..581cf5896e 100755
--- a/test/functional/mining_prioritisetransaction.py
+++ b/test/functional/mining_prioritisetransaction.py
@@ -122,11 +122,11 @@ class PrioritiseTransactionTest(BitcoinTestFramework):
 
         # Test `prioritisetransaction` invalid `dummy`
         txid = '1d1d4e24ed99057e84c3f80fd8fbec79ed9e1acee37da269356ecea000000000'
-        assert_raises_rpc_error(-1, "JSON value of type string is not of expected type number", self.nodes[0].prioritisetransaction, txid, 'foo', 0)
+        assert_raises_rpc_error(-3, "JSON value of type string is not of expected type number", self.nodes[0].prioritisetransaction, txid, 'foo', 0)
         assert_raises_rpc_error(-8, "Priority is no longer supported, dummy argument to prioritisetransaction must be 0.", self.nodes[0].prioritisetransaction, txid, 1, 0)
 
         # Test `prioritisetransaction` invalid `fee_delta`
-        assert_raises_rpc_error(-1, "JSON value of type string is not of expected type number", self.nodes[0].prioritisetransaction, txid=txid, fee_delta='foo')
+        assert_raises_rpc_error(-3, "JSON value of type string is not of expected type number", self.nodes[0].prioritisetransaction, txid=txid, fee_delta='foo')
 
         self.test_diamond()
 
diff --git a/test/functional/rpc_blockchain.py b/test/functional/rpc_blockchain.py
index d8147b3355..d07d28879e 100755
--- a/test/functional/rpc_blockchain.py
+++ b/test/functional/rpc_blockchain.py
@@ -262,12 +262,12 @@ class BlockchainTest(BitcoinTestFramework):
         assert_raises_rpc_error(-1, 'getchaintxstats', self.nodes[0].getchaintxstats, 0, '', 0)
 
         # Test `getchaintxstats` invalid `nblocks`
-        assert_raises_rpc_error(-1, "JSON value of type string is not of expected type number", self.nodes[0].getchaintxstats, '')
+        assert_raises_rpc_error(-3, "JSON value of type string is not of expected type number", self.nodes[0].getchaintxstats, '')
         assert_raises_rpc_error(-8, "Invalid block count: should be between 0 and the block's height - 1", self.nodes[0].getchaintxstats, -1)
         assert_raises_rpc_error(-8, "Invalid block count: should be between 0 and the block's height - 1", self.nodes[0].getchaintxstats, self.nodes[0].getblockcount())
 
         # Test `getchaintxstats` invalid `blockhash`
-        assert_raises_rpc_error(-1, "JSON value of type number is not of expected type string", self.nodes[0].getchaintxstats, blockhash=0)
+        assert_raises_rpc_error(-3, "JSON value of type number is not of expected type string", self.nodes[0].getchaintxstats, blockhash=0)
         assert_raises_rpc_error(-8, "blockhash must be of length 64 (not 1, for '0')", self.nodes[0].getchaintxstats, blockhash='0')
         assert_raises_rpc_error(-8, "blockhash must be hexadecimal string (not 'ZZZ0000000000000000000000000000000000000000000000000000000000000')", self.nodes[0].getchaintxstats, blockhash='ZZZ0000000000000000000000000000000000000000000000000000000000000')
         assert_raises_rpc_error(-5, "Block not found", self.nodes[0].getchaintxstats, blockhash='0000000000000000000000000000000000000000000000000000000000000000')
@@ -547,7 +547,7 @@ class BlockchainTest(BitcoinTestFramework):
         datadir = get_datadir_path(self.options.tmpdir, 0)
 
         self.log.info("Test getblock with invalid verbosity type returns proper error message")
-        assert_raises_rpc_error(-1, "JSON value of type string is not of expected type number", node.getblock, blockhash, "2")
+        assert_raises_rpc_error(-3, "JSON value of type string is not of expected type number", node.getblock, blockhash, "2")
 
         def move_block_file(old, new):
             old_path = os.path.join(datadir, self.chain, 'blocks', old)
diff --git a/test/functional/rpc_fundrawtransaction.py b/test/functional/rpc_fundrawtransaction.py
index 2c33617750..77d68f0502 100755
--- a/test/functional/rpc_fundrawtransaction.py
+++ b/test/functional/rpc_fundrawtransaction.py
@@ -301,7 +301,7 @@ class RawTransactionsTest(BitcoinTestFramework):
         inputs  = [ {'txid' : utx['txid'], 'vout' : utx['vout']} ]
         outputs = { self.nodes[0].getnewaddress() : Decimal(4.0) }
         rawtx   = self.nodes[2].createrawtransaction(inputs, outputs)
-        assert_raises_rpc_error(-1, "JSON value of type null is not of expected type string", self.nodes[2].fundrawtransaction, rawtx, {'change_type': None})
+        assert_raises_rpc_error(-3, "JSON value of type null is not of expected type string", self.nodes[2].fundrawtransaction, rawtx, {'change_type': None})
         assert_raises_rpc_error(-5, "Unknown change type ''", self.nodes[2].fundrawtransaction, rawtx, {'change_type': ''})
         rawtx = self.nodes[2].fundrawtransaction(rawtx, {'change_type': 'bech32'})
         dec_tx = self.nodes[2].decoderawtransaction(rawtx['hex'])
diff --git a/test/functional/rpc_help.py b/test/functional/rpc_help.py
index 5b7e724728..f683577c47 100755
--- a/test/functional/rpc_help.py
+++ b/test/functional/rpc_help.py
@@ -92,7 +92,7 @@ class HelpRpcTest(BitcoinTestFramework):
         assert_raises_rpc_error(-1, 'help', node.help, 'foo', 'bar')
 
         # invalid argument
-        assert_raises_rpc_error(-1, "JSON value of type number is not of expected type string", node.help, 0)
+        assert_raises_rpc_error(-3, "JSON value of type number is not of expected type string", node.help, 0)
 
         # help of unknown command
         assert_equal(node.help('foo'), 'help: unknown command: foo')
diff --git a/test/functional/rpc_rawtransaction.py b/test/functional/rpc_rawtransaction.py
index f1fae13b4a..930aaaa897 100755
--- a/test/functional/rpc_rawtransaction.py
+++ b/test/functional/rpc_rawtransaction.py
@@ -124,13 +124,13 @@ class RawTransactionsTest(BitcoinTestFramework):
 
             # 6. invalid parameters - supply txid and invalid boolean values (strings) for verbose
             for value in ["True", "False"]:
-                assert_raises_rpc_error(-1, "not of expected type bool", self.nodes[n].getrawtransaction, txid=txId, verbose=value)
+                assert_raises_rpc_error(-3, "not of expected type bool", self.nodes[n].getrawtransaction, txid=txId, verbose=value)
 
             # 7. invalid parameters - supply txid and empty array
-            assert_raises_rpc_error(-1, "not of expected type bool", self.nodes[n].getrawtransaction, txId, [])
+            assert_raises_rpc_error(-3, "not of expected type bool", self.nodes[n].getrawtransaction, txId, [])
 
             # 8. invalid parameters - supply txid and empty dict
-            assert_raises_rpc_error(-1, "not of expected type bool", self.nodes[n].getrawtransaction, txId, {})
+            assert_raises_rpc_error(-3, "not of expected type bool", self.nodes[n].getrawtransaction, txId, {})
 
         # Make a tx by sending, then generate 2 blocks; block1 has the tx in it
         tx = self.wallet.send_self_transfer(from_node=self.nodes[2])['txid']
@@ -152,7 +152,7 @@ class RawTransactionsTest(BitcoinTestFramework):
             # We should not get the tx if we provide an unrelated block
             assert_raises_rpc_error(-5, "No such transaction found", self.nodes[n].getrawtransaction, txid=tx, blockhash=block2)
             # An invalid block hash should raise the correct errors
-            assert_raises_rpc_error(-1, "JSON value of type bool is not of expected type string", self.nodes[n].getrawtransaction, txid=tx, blockhash=True)
+            assert_raises_rpc_error(-3, "JSON value of type bool is not of expected type string", self.nodes[n].getrawtransaction, txid=tx, blockhash=True)
             assert_raises_rpc_error(-8, "parameter 3 must be of length 64 (not 6, for 'foobar')", self.nodes[n].getrawtransaction, txid=tx, blockhash="foobar")
             assert_raises_rpc_error(-8, "parameter 3 must be of length 64 (not 8, for 'abcd1234')", self.nodes[n].getrawtransaction, txid=tx, blockhash="abcd1234")
             foo = "ZZZ0000000000000000000000000000000000000000000000000000000000000"
@@ -181,8 +181,8 @@ class RawTransactionsTest(BitcoinTestFramework):
 
         # Test `createrawtransaction` invalid `inputs`
         assert_raises_rpc_error(-3, "JSON value of type string is not of expected type array", self.nodes[0].createrawtransaction, 'foo', {})
-        assert_raises_rpc_error(-1, "JSON value of type string is not of expected type object", self.nodes[0].createrawtransaction, ['foo'], {})
-        assert_raises_rpc_error(-1, "JSON value of type null is not of expected type string", self.nodes[0].createrawtransaction, [{}], {})
+        assert_raises_rpc_error(-3, "JSON value of type string is not of expected type object", self.nodes[0].createrawtransaction, ['foo'], {})
+        assert_raises_rpc_error(-3, "JSON value of type null is not of expected type string", self.nodes[0].createrawtransaction, [{}], {})
         assert_raises_rpc_error(-8, "txid must be of length 64 (not 3, for 'foo')", self.nodes[0].createrawtransaction, [{'txid': 'foo'}], {})
         txid = "ZZZ7bb8b1697ea987f3b223ba7819250cae33efacb068d23dc24859824a77844"
         assert_raises_rpc_error(-8, f"txid must be hexadecimal string (not '{txid}')", self.nodes[0].createrawtransaction, [{'txid': txid}], {})
@@ -207,7 +207,7 @@ class RawTransactionsTest(BitcoinTestFramework):
 
         # Test `createrawtransaction` invalid `outputs`
         address = getnewdestination()[2]
-        assert_raises_rpc_error(-1, "JSON value of type string is not of expected type array", self.nodes[0].createrawtransaction, [], 'foo')
+        assert_raises_rpc_error(-3, "JSON value of type string is not of expected type array", self.nodes[0].createrawtransaction, [], 'foo')
         self.nodes[0].createrawtransaction(inputs=[], outputs={})  # Should not throw for backwards compatibility
         self.nodes[0].createrawtransaction(inputs=[], outputs=[])
         assert_raises_rpc_error(-8, "Data must be hexadecimal string", self.nodes[0].createrawtransaction, [], {'data': 'foo'})
diff --git a/test/functional/wallet_basic.py b/test/functional/wallet_basic.py
index 917721fef8..20c577ceb3 100755
--- a/test/functional/wallet_basic.py
+++ b/test/functional/wallet_basic.py
@@ -415,7 +415,7 @@ class WalletTest(BitcoinTestFramework):
         assert_raises_rpc_error(-3, "Invalid amount", self.nodes[0].sendtoaddress, self.nodes[2].getnewaddress(), "1f-4")
 
         # This will raise an exception since generate does not accept a string
-        assert_raises_rpc_error(-1, "not of expected type number", self.generate, self.nodes[0], "2")
+        assert_raises_rpc_error(-3, "not of expected type number", self.generate, self.nodes[0], "2")
 
         if not self.options.descriptors:
 
diff --git a/test/functional/wallet_hd.py b/test/functional/wallet_hd.py
index 6c41b468b6..220c856498 100755
--- a/test/functional/wallet_hd.py
+++ b/test/functional/wallet_hd.py
@@ -177,8 +177,8 @@ class WalletHDTest(BitcoinTestFramework):
             # Sethdseed parameter validity
             assert_raises_rpc_error(-1, 'sethdseed', self.nodes[0].sethdseed, False, new_seed, 0)
             assert_raises_rpc_error(-5, "Invalid private key", self.nodes[1].sethdseed, False, "not_wif")
-            assert_raises_rpc_error(-1, "JSON value of type string is not of expected type bool", self.nodes[1].sethdseed, "Not_bool")
-            assert_raises_rpc_error(-1, "JSON value of type bool is not of expected type string", self.nodes[1].sethdseed, False, True)
+            assert_raises_rpc_error(-3, "JSON value of type string is not of expected type bool", self.nodes[1].sethdseed, "Not_bool")
+            assert_raises_rpc_error(-3, "JSON value of type bool is not of expected type string", self.nodes[1].sethdseed, False, True)
             assert_raises_rpc_error(-5, "Already have this key", self.nodes[1].sethdseed, False, new_seed)
             assert_raises_rpc_error(-5, "Already have this key", self.nodes[1].sethdseed, False, self.nodes[1].dumpprivkey(self.nodes[1].getnewaddress()))
 
diff --git a/test/functional/wallet_multiwallet.py b/test/functional/wallet_multiwallet.py
index 99e472a7b4..1c890d7207 100755
--- a/test/functional/wallet_multiwallet.py
+++ b/test/functional/wallet_multiwallet.py
@@ -356,7 +356,7 @@ class MultiWalletTest(BitcoinTestFramework):
         self.log.info("Test dynamic wallet unloading")
 
         # Test `unloadwallet` errors
-        assert_raises_rpc_error(-1, "JSON value of type null is not of expected type string", self.nodes[0].unloadwallet)
+        assert_raises_rpc_error(-3, "JSON value of type null is not of expected type string", self.nodes[0].unloadwallet)
         assert_raises_rpc_error(-18, "Requested wallet does not exist or is not loaded", self.nodes[0].unloadwallet, "dummy")
         assert_raises_rpc_error(-18, "Requested wallet does not exist or is not loaded", node.get_wallet_rpc("dummy").unloadwallet)
         assert_raises_rpc_error(-8, "RPC endpoint wallet and wallet_name parameter specify different wallets", w1.unloadwallet, "w2"),