fix: SPL Token test uses TransferChecked with token_info — OLED shows 'Send 50.00 USDC'

Author: BitHighlander

tests/test_msg_solana_signtx.py

@@ -237,17 +237,24 @@ def _build_tx(self, from_pubkey, accounts, program_id, instr_data, extra_account
     # ================================================================
 
     def test_solana_sign_token_transfer(self):
-        """SPL Token transfer — OLED shows 'Send [amount] tokens to [address]'."""
+        """SPL Token TransferChecked — OLED shows 'Send 50.00 USDC to [address]'.
+        Uses opcode 12 (TransferChecked) with mint account + token_info metadata."""
         self.requires_fullFeature()
+        self.requires_message("SolanaSignTx")
         self.setup_mnemonic_allallall()
         from_pubkey = self._get_from_pubkey()
-        to_account = b'\x33' * 32  # destination token account
-        owner = from_pubkey  # token owner = signer
-        # SPL Token Transfer instruction: opcode=3 (u8) + amount (LE u64)
-        instr_data = bytes([3]) + struct.pack('<Q', 50000000)  # 50M tokens
-        raw_tx = self._build_tx(from_pubkey, [to_account], self.TOKEN_PROGRAM, instr_data)
+        source_ata = b'\x11' * 32   # source token account
+        usdc_mint = b'\x22' * 32    # USDC mint (test placeholder)
+        dest_ata = b'\x33' * 32     # destination token account
+        # TransferChecked: opcode=12 (u8) + amount (LE u64) + decimals (u8)
+        instr_data = bytes([12]) + struct.pack('<Q', 50000000) + bytes([6])
+        # Accounts: [source, mint, destination, owner(signer)]
+        raw_tx = self._build_tx(from_pubkey, [source_ata, usdc_mint, dest_ata],
+                                self.TOKEN_PROGRAM, instr_data)
+        token_info = messages.SolanaTokenInfo(mint=usdc_mint, symbol="USDC", decimals=6)
         resp = self.client.call(messages.SolanaSignTx(
-            address_n=parse_path("m/44'/501'/0'/0'"), raw_tx=raw_tx))
+            address_n=parse_path("m/44'/501'/0'/0'"),
+            raw_tx=raw_tx, token_info=[token_info]))
         self.assertEqual(len(resp.signature), 64)
 
     def test_solana_sign_token_approve(self):