test: add tests for more advanced txbuilder operations

bdk-python/tests/test_live_tx_builder.py

@@ -33,6 +33,48 @@ class TestLiveTxBuilder(unittest.TestCase):
         
         self.assertTrue(psbt.serialize().startswith("cHNi"), "The PSBT should start with cHNi")
 
-    
+    def complex_tx_builder(self):
+        descriptor: bdk.Descriptor = bdk.Descriptor(
+            "wpkh([c258d2e4/84h/1h/0h]tpubDDYkZojQFQjht8Tm4jsS3iuEmKjTiEGjG6KnuFNKKJb5A6ZUCUZKdvLdSDWofKi4ToRCwb9poe1XdqfUnP4jaJjCB2Zwv11ZLgSbnZSNecE/0/*)",
+            bdk.Network.TESTNET
+        )
+        change_descriptor: bdk.Descriptor = bdk.Descriptor(
+            "wpkh([c258d2e4/84h/1h/0h]tpubDDYkZojQFQjht8Tm4jsS3iuEmKjTiEGjG6KnuFNKKJb5A6ZUCUZKdvLdSDWofKi4ToRCwb9poe1XdqfUnP4jaJjCB2Zwv11ZLgSbnZSNecE/1/*)",
+            bdk.Network.TESTNET
+        )
+        wallet: bdk.Wallet = bdk.Wallet.new_no_persist(
+            descriptor,
+            change_descriptor,
+            bdk.Network.TESTNET
+        )
+        esploraClient: bdk.EsploraClient = bdk.EsploraClient(url = "https://mempool.space/testnet/api")
+        update = esploraClient.scan(
+            wallet = wallet,
+            stop_gap = 10,
+            parallel_requests = 1
+        )
+        wallet.apply_update(update)
+
+        self.assertGreater(wallet.get_balance().total, 0)
+
+        recipient1 = bdk.Address(
+            address = "tb1qrnfslnrve9uncz9pzpvf83k3ukz22ljgees989",
+            network = bdk.Network.TESTNET
+        )
+        recipient2 = bdk.Address(
+            address = "tb1qw2c3lxufxqe2x9s4rdzh65tpf4d7fssjgh8nv6",
+            network = bdk.Network.TESTNET
+        )
+        all_recipients = list(
+            bdk.ScriptAmount(recipient1.script_pubkey, 4200),
+            bdk.ScriptAmount(recipient2.script_pubkey, 4200)
+        )
+
+        psbt: bdk.PartiallySignedTransaction = bdk.TxBuilder().set_recipients(all_recipients).fee_rate(4.0).change_policy(bdk.ChangeSpendPolicy.CHANGE_FORBIDDEN).enable_rbf().finish(wallet)
+        wallet.sign(psbt)
+
+        self.assertTrue(psbt.serialize().startswith("cHNi"), "The PSBT should start with cHNi")
+
+
 if __name__ == '__main__':
     unittest.main()

bdk-python/tests/test_live_wallet.py

@@ -41,7 +41,7 @@ class TestLiveWallet(unittest.TestCase):
         )
         wallet.apply_update(update)
 
-        self.assertGreater(wallet.get_balance().total(), 0)
+        self.assertGreater(wallet.get_balance().total, 0)
 
         recipient = bdk.Address(
             address = "tb1qrnfslnrve9uncz9pzpvf83k3ukz22ljgees989",