more tests to bring coverage patch to 100%

Author: SCMusson

test/pycardano/test_txbuilder.py

@@ -1397,6 +1397,54 @@ def test_tx_builder_certificates_script(chain_context):
     assert [plutus_script] == witness.plutus_v2_script
 
 
+def test_tx_builder_cert_redeemer_wrong_tag(chain_context):
+    tx_builder = TransactionBuilder(chain_context)
+    plutus_script = PlutusV2Script(b"dummy test script")
+    redeemer = Redeemer(PlutusData(), ExecutionUnits(100000, 1000000))
+    redeemer.tag = RedeemerTag.MINT
+    with pytest.raises(InvalidArgumentException) as e:
+        tx_builder.add_certificate_script(plutus_script, redeemer=redeemer)
+
+
+def test_add_cert_script_from_utxo(chain_context):
+    tx_builder = TransactionBuilder(chain_context)
+    sender = "addr_test1vrm9x2zsux7va6w892g38tvchnzahvcd9tykqf3ygnmwtaqyfg52x"
+    sender_address = Address.from_primitive(sender)
+    plutus_script = PlutusV2Script(b"dummy test script")
+    script_hash = plutus_script_hash(plutus_script)
+    script_address = Address(script_hash)
+    existing_script_utxo = UTxO(
+        TransactionInput.from_primitive(
+            [
+                "41cb004bec7051621b19b46aea28f0657a586a05ce2013152ea9b9f1a5614cc7",
+                1,
+            ]
+        ),
+        TransactionOutput(script_address, 1234567, script=plutus_script),
+    )
+
+    stake_credential = StakeCredential(script_hash)
+    pool_hash = PoolKeyHash(b"1" * POOL_KEY_HASH_SIZE)
+    stake_registration = StakeRegistration(stake_credential)
+    stake_delegation = StakeDelegation(stake_credential, pool_hash)
+    tx_builder.certificates = [stake_registration, stake_delegation]
+    tx_builder.add_input_address(sender).add_output(
+        TransactionOutput.from_primitive([sender, 500000])
+    )
+
+    redeemer = Redeemer(PlutusData(), ExecutionUnits(100000, 1000000))
+    tx_builder.add_certificate_script(existing_script_utxo, redeemer=redeemer)
+    tx_builder.ttl = 123456
+
+    tx_body = tx_builder.build(change_address=sender_address)
+    tx_builder.use_redeemer_map = False
+    witness = tx_builder.build_witness_set()
+    assert witness.plutus_data is None
+    assert [redeemer] == witness.redeemer
+    assert witness.plutus_v2_script is None
+    assert [existing_script_utxo.input] == tx_body.reference_inputs
+
+
 def test_tx_builder_stake_pool_registration(chain_context, pool_params):
     tx_builder = TransactionBuilder(chain_context, [RandomImproveMultiAsset([0, 0])])
     sender = "addr_test1vrm9x2zsux7va6w892g38tvchnzahvcd9tykqf3ygnmwtaqyfg52x"