# This file is part of the Trezor project.
#
# Copyright (C) 2012-2019 SatoshiLabs and contributors
#
# This library is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License version 3
# as published by the Free Software Foundation.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the License along with this library.
# If not, see <https://www.gnu.org/licenses/lgpl-3.0.html>.

import pytest

from trezorlib import btc, messages as proto
from trezorlib.tools import H_, CallException, btc_hash, parse_path

from ..common import MNEMONIC12
from ..tx_cache import tx_cache

TXHASH_157041 = bytes.fromhex(
    "1570416eb4302cf52979afd5e6909e37d8fdd874301f7cc87e547e509cb1caa6"
)
TXHASH_39a29e = bytes.fromhex(
    "39a29e954977662ab3879c66fb251ef753e0912223a83d1dcb009111d28265e5"
)
TXHASH_4a7b7e = bytes.fromhex(
    "4a7b7e0403ae5607e473949cfa03f09f2cd8b0f404bf99ce10b7303d86280bf7"
)
TXHASH_54aa56 = bytes.fromhex(
    "54aa5680dea781f45ebb536e53dffc526d68c0eb5c00547e323b2c32382dfba3"
)
TXHASH_58497a = bytes.fromhex(
    "58497a7757224d1ff1941488d23087071103e5bf855f4c1c44e5c8d9d82ca46e"
)
TXHASH_6f90f3 = bytes.fromhex(
    "6f90f3c7cbec2258b0971056ef3fe34128dbde30daa9c0639a898f9977299d54"
)
TXHASH_c63e24 = bytes.fromhex(
    "c63e24ed820c5851b60c54613fbc4bcb37df6cd49b4c96143e99580a472f79fb"
)
TXHASH_c6be22 = bytes.fromhex(
    "c6be22d34946593bcad1d2b013e12f74159e69574ffea21581dad115572e031c"
)
TXHASH_d5f65e = bytes.fromhex(
    "d5f65ee80147b4bcc70b75e4bbf2d7382021b871bd8867ef8fa525ef50864882"
)
TXHASH_d6da21 = bytes.fromhex(
    "d6da21677d7cca5f42fbc7631d062c9ae918a0254f7c6c22de8e8cb7fd5b8236"
)
TXHASH_d2dcda = bytes.fromhex(
    "d2dcdaf547ea7f57a713c607f15e883ddc4a98167ee2c43ed953c53cb5153e24"
)
TXHASH_e5040e = bytes.fromhex(
    "e5040e1bc1ae7667ffb9e5248e90b2fb93cd9150234151ce90e14ab2f5933bcd"
)
TXHASH_50f6f1 = bytes.fromhex(
    "50f6f1209ca92d7359564be803cb2c932cde7d370f7cee50fd1fad6790f6206d"
)
TXHASH_2bac7a = bytes.fromhex(
    "2bac7ad1dec654579a71ea9555463f63ac7b7df9d8ba67b4682bba4e514d0f0c"
)


def check_sign_tx(
    client,
    coin_name,
    inputs,
    outputs,
    fee_too_high=False,
    failure=None,
    unknown_path=False,
):
    __tracebackhide__ = True
    expected_responses = []

    txes = tx_cache(coin_name)

    t = proto.RequestType
    b = proto.ButtonRequestType

    def tx_request(request_type, **kwargs):
        if kwargs:
            details = proto.TxRequestDetailsType(**kwargs)
        else:
            details = None
        return proto.TxRequest(request_type=request_type, details=details)

    def btn(code):
        return proto.ButtonRequest(code=code)

    for i, inp in enumerate(inputs):
        expected_responses.append(tx_request(t.TXINPUT, request_index=i))
        if unknown_path and client.features.model != "1":
            expected_responses.append(btn(b.UnknownDerivationPath))
        expected_responses.append(tx_request(t.TXMETA, tx_hash=inp.prev_hash))

        if inp.script_type in (
            proto.InputScriptType.SPENDP2SHWITNESS,
            proto.InputScriptType.SPENDWITNESS,
        ):
            continue

        prev_tx = txes[inp.prev_hash]
        for pi in range(len(prev_tx.inputs)):
            r = tx_request(t.TXINPUT, request_index=pi, tx_hash=inp.prev_hash)
            expected_responses.append(r)

        for po in range(len(prev_tx.bin_outputs)):
            r = tx_request(t.TXOUTPUT, request_index=po, tx_hash=inp.prev_hash)
            expected_responses.append(r)

    for i, outp in enumerate(outputs):
        expected_responses.append(tx_request(t.TXOUTPUT, request_index=i))
        if outp.address is not None or hasattr(outp, "force_confirm"):
            expected_responses.append(btn(b.ConfirmOutput))

    if fee_too_high:
        expected_responses.append(btn(b.FeeOverThreshold))

    if failure is not None:
        expected_responses.append(proto.Failure(code=failure))

    else:
        expected_responses.append(btn(b.SignTx))

        input_requests = [
            tx_request(t.TXINPUT, request_index=i) for i in range(len(inputs))
        ]
        output_requests = [
            tx_request(t.TXOUTPUT, request_index=i) for i in range(len(outputs))
        ]

        # No idea why the flow is like this. But it is.
        for _ in range(len(inputs)):
            expected_responses.extend(input_requests)
            expected_responses.extend(output_requests)

        # and once more for good measure
        expected_responses.extend(output_requests)

        expected_responses.append(tx_request(t.TXFINISHED))

    with client:
        client.set_expected_responses(expected_responses)
        return btc.sign_tx(client, coin_name, inputs, outputs, prev_txes=txes)


class TestMsgSigntx:
    @pytest.mark.setup_client(mnemonic=MNEMONIC12)
    def test_one_one_fee(self, client):
        # tx: d5f65ee80147b4bcc70b75e4bbf2d7382021b871bd8867ef8fa525ef50864882
        # input 0: 0.0039 BTC

        inp1 = proto.TxInputType(
            address_n=[0],  # 14LmW5k4ssUrtbAB4255zdqv3b4w1TuX9e
            # amount=390000,
            prev_hash=TXHASH_d5f65e,
            prev_index=0,
        )

        out1 = proto.TxOutputType(
            address="1MJ2tj2ThBE62zXbBYA5ZaN3fdve5CPAz1",
            amount=390000 - 10000,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )

        _, serialized_tx = check_sign_tx(
            client, "Bitcoin", [inp1], [out1], unknown_path=True
        )

        # Accepted by network: tx fd79435246dee76b2f159d2db08032d666c95adc544de64c8c49f474df4a7fee
        assert (
            serialized_tx.hex()
            == "010000000182488650ef25a58fef6788bd71b8212038d7f2bbe4750bc7bcb44701e85ef6d5000000006b4830450221009a0b7be0d4ed3146ee262b42202841834698bb3ee39c24e7437df208b8b7077102202b79ab1e7736219387dffe8d615bbdba87e11477104b867ef47afed1a5ede7810121023230848585885f63803a0a8aecdd6538792d5c539215c91698e315bf0253b43dffffffff0160cc0500000000001976a914de9b2a8da088824e8fe51debea566617d851537888ac00000000"
        )

    def test_testnet_one_two_fee(self, client):
        # see 87be0736f202f7c2bff0781b42bad3e0cdcb54761939da69ea793a3735552c56

        # tx: e5040e1bc1ae7667ffb9e5248e90b2fb93cd9150234151ce90e14ab2f5933bcd
        # input 0: 0.31 BTC
        inp1 = proto.TxInputType(
            address_n=parse_path("44'/1'/0'/0/0"),
            # amount=31000000,
            prev_hash=TXHASH_e5040e,
            prev_index=0,
        )

        out1 = proto.TxOutputType(
            address="msj42CCGruhRsFrGATiUuh25dtxYtnpbTx",
            amount=30090000,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )

        out2 = proto.TxOutputType(
            address_n=parse_path("44'/1'/0'/1/0"),
            amount=900000,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )

        _, serialized_tx = check_sign_tx(client, "Testnet", [inp1], [out1, out2])

        assert (
            serialized_tx.hex()
            == "0100000001cd3b93f5b24ae190ce5141235091cd93fbb2908e24e5b9ff6776aec11b0e04e5000000006b483045022100eba3bbcbb82ab1ebac88a394e8fb53b0263dadbb3e8072f0a21ee62818c911060220686a9b7f306d028b54a228b5c47cc6c27b1d01a3b0770440bcc64d55d8bace2c0121030e669acac1f280d1ddf441cd2ba5e97417bf2689e4bbec86df4f831bf9f7ffd0ffffffff021023cb01000000001976a91485eb47fe98f349065d6f044e27a4ac541af79ee288aca0bb0d00000000001976a9143d3cca567e00a04819742b21a696a67da796498b88ac00000000"
        )

    @pytest.mark.setup_client(mnemonic=MNEMONIC12)
    def test_testnet_fee_too_high(self, client):
        # tx: 6f90f3c7cbec2258b0971056ef3fe34128dbde30daa9c0639a898f9977299d54
        # input 1: 10.00000000 BTC
        inp1 = proto.TxInputType(
            address_n=[0],  # mirio8q3gtv7fhdnmb3TpZ4EuafdzSs7zL
            # amount=1000000000,
            prev_hash=TXHASH_6f90f3,
            prev_index=1,
        )

        out1 = proto.TxOutputType(
            address="mfiGQVPcRcaEvQPYDErR34DcCovtxYvUUV",
            amount=1000000000 - 500000000 - 100000000,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )

        out2 = proto.TxOutputType(
            address_n=[2],
            amount=500000000,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )

        out2.force_confirm = True

        _, serialized_tx = check_sign_tx(
            client,
            "Testnet",
            [inp1],
            [out1, out2],
            fee_too_high=True,
            unknown_path=True,
        )

        assert (
            serialized_tx.hex()
            == "0100000001549d2977998f899a63c0a9da30dedb2841e33fef561097b05822eccbc7f3906f010000006a47304402205ea68e9d52d4be14420ccecf7f2e11489d49b86bedb79ee99b5e9b7188884150022056219cb3384a5df8048cca286a9533403dbda1571afd84b51379cdaee6a6dea80121023230848585885f63803a0a8aecdd6538792d5c539215c91698e315bf0253b43dffffffff020084d717000000001976a9140223b1a09138753c9cb0baf95a0a62c82711567a88ac0065cd1d000000001976a9142db345c36563122e2fd0f5485fb7ea9bbf7cb5a288ac00000000"
        )

    def test_one_two_fee(self, client):
        # tx: c275c333fd1b36bef4af316226c66a8b3693fbfcc081a5e16a2ae5fcb09e92bf

        inp1 = proto.TxInputType(
            address_n=parse_path(
                "m/44'/0'/0'/0/5"
            ),  # 1GA9u9TfCG7SWmKCveBumdA1TZpfom6ZdJ
            # amount=50000,
            prev_hash=TXHASH_50f6f1,
            prev_index=1,
        )

        out1 = proto.TxOutputType(
            address_n=parse_path(
                "m/44'/0'/0'/1/3"
            ),  # 1EcL6AyfQTyWKGvXwNSfsWoYnD3whzVFdu
            amount=30000,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )

        out2 = proto.TxOutputType(
            address="1Up15Msx4sbvUCGm8Xgo2Zp5FQim3wE59",
            amount=10000,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )

        _, serialized_tx = check_sign_tx(client, "Bitcoin", [inp1], [out1, out2])

        assert (
            serialized_tx.hex()
            == "01000000016d20f69067ad1ffd50ee7c0f377dde2c932ccb03e84b5659732da99c20f1f650010000006a47304402203429bd3ce7b38c5c1e8a15340edd79ced41a2939aae62e259d2e3d18e0c5ee7602201b83b10ebc4d6dcee3f9eb42ba8f1ef8a059a05397e0c1b9223d1565a3e6ec01012102a7a079c1ef9916b289c2ff21a992c808d0de3dfcf8a9f163205c5c9e21f55d5cffffffff0230750000000000001976a914954820f1de627a703596ac0396f986d958e3de4c88ac10270000000000001976a91405427736705cfbfaff76b1cff48283707fb1037088ac00000000"
        )

    @pytest.mark.setup_client(mnemonic=MNEMONIC12)
    def test_one_three_fee(self, client):
        # tx: d5f65ee80147b4bcc70b75e4bbf2d7382021b871bd8867ef8fa525ef50864882
        # input 0: 0.0039 BTC

        inp1 = proto.TxInputType(
            address_n=[0],  # 14LmW5k4ssUrtbAB4255zdqv3b4w1TuX9e
            # amount=390000,
            prev_hash=TXHASH_d5f65e,
            prev_index=0,
        )

        out1 = proto.TxOutputType(
            address="1MJ2tj2ThBE62zXbBYA5ZaN3fdve5CPAz1",
            amount=390000 - 80000 - 12000 - 10000,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )

        out2 = proto.TxOutputType(
            address="13uaUYn6XAooo88QvAqAVsiVvr2mAXutqP",
            amount=12000,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )

        out3 = proto.TxOutputType(
            address_n=[1], amount=80000, script_type=proto.OutputScriptType.PAYTOADDRESS
        )

        out3.force_confirm = True

        _, serialized_tx = check_sign_tx(
            client, "Bitcoin", [inp1], [out1, out2, out3], unknown_path=True
        )

        assert (
            serialized_tx.hex()
            == "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"
        )

    @pytest.mark.setup_client(mnemonic=MNEMONIC12)
    def test_two_two(self, client):
        # tx: c6be22d34946593bcad1d2b013e12f74159e69574ffea21581dad115572e031c
        # input 1: 0.0010 BTC
        # tx: 58497a7757224d1ff1941488d23087071103e5bf855f4c1c44e5c8d9d82ca46e
        # input 1: 0.0011 BTC

        inp1 = proto.TxInputType(
            address_n=[1],  # 1CK7SJdcb8z9HuvVft3D91HLpLC6KSsGb
            # amount=100000,
            prev_hash=TXHASH_c6be22,
            prev_index=1,
        )

        inp2 = proto.TxInputType(
            address_n=[2],  # 15AeAhtNJNKyowK8qPHwgpXkhsokzLtUpG
            # amount=110000,
            prev_hash=TXHASH_58497a,
            prev_index=1,
        )

        out1 = proto.TxOutputType(
            address="15Jvu3nZNP7u2ipw2533Q9VVgEu2Lu9F2B",
            amount=210000 - 100000 - 10000,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )

        out2 = proto.TxOutputType(
            address_n=[3],  # 1CmzyJp9w3NafXMSEFH4SLYUPAVCSUrrJ5
            amount=100000,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )

        out2.force_confirm = True

        _, serialized_tx = check_sign_tx(
            client, "Bitcoin", [inp1, inp2], [out1, out2], unknown_path=True
        )

        # Accepted by network: tx c63e24ed820c5851b60c54613fbc4bcb37df6cd49b4c96143e99580a472f79fb
        # The transaction was produced before Trezor implemented BIP-66, so the signature
        # is now different and txhash doesn't match what is on the blockchain.
        assert (
            serialized_tx.hex()
            == "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"
        )

    @pytest.mark.setup_client(mnemonic=MNEMONIC12)
    def test_lots_of_inputs(self, client):
        # Tests if device implements serialization of len(inputs) correctly
        # tx 4a7b7e0403ae5607e473949cfa03f09f2cd8b0f404bf99ce10b7303d86280bf7 : 100 UTXO for spending for unit tests
        inputs = []
        for i in range(100):
            inputs.append(
                proto.TxInputType(
                    address_n=[4],  # 1NwN6UduuVkJi6sw3gSiKZaCY5rHgVXC2h
                    prev_hash=TXHASH_4a7b7e,
                    prev_index=i,
                )
            )
        out = proto.TxOutputType(
            address="19dvDdyxxptP9dGvozYe8BP6tgFV9L4jg5",
            amount=100 * 26000 - 15 * 10000,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )
        _, serialized_tx = check_sign_tx(
            client, "Bitcoin", inputs, [out], unknown_path=True
        )
        # Accepted by network: tx 23d9d8eecf3abf6c0f0f3f8b0976a04792d7f1c9a4ea9b0a8931734949e27c92
        # too big put in unit test, only check hash
        assert (
            btc_hash(serialized_tx)[::-1].hex()
            == "23d9d8eecf3abf6c0f0f3f8b0976a04792d7f1c9a4ea9b0a8931734949e27c92"
        )

    @pytest.mark.setup_client(mnemonic=MNEMONIC12)
    def test_lots_of_outputs(self, client):
        # Tests if device implements serialization of len(outputs) correctly

        # tx: c63e24ed820c5851b60c54613fbc4bcb37df6cd49b4c96143e99580a472f79fb
        # index 1: 0.0010 BTC
        # tx: 39a29e954977662ab3879c66fb251ef753e0912223a83d1dcb009111d28265e5
        # index 1: 0.0254 BTC

        inp1 = proto.TxInputType(
            address_n=[3],  # 1CmzyJp9w3NafXMSEFH4SLYUPAVCSUrrJ5
            # amount=100000,
            prev_hash=TXHASH_c63e24,
            prev_index=1,
        )

        inp2 = proto.TxInputType(
            address_n=[3],  # 1CmzyJp9w3NafXMSEFH4SLYUPAVCSUrrJ5
            # amount=2540000,
            prev_hash=TXHASH_39a29e,
            prev_index=1,
        )

        outputs = []
        cnt = 255
        for _ in range(cnt):
            out = proto.TxOutputType(
                address="1NwN6UduuVkJi6sw3gSiKZaCY5rHgVXC2h",
                amount=(100000 + 2540000 - 39000) // cnt,
                script_type=proto.OutputScriptType.PAYTOADDRESS,
            )
            outputs.append(out)

        _, serialized_tx = check_sign_tx(
            client, "Bitcoin", [inp1, inp2], outputs, unknown_path=True
        )

        assert (
            serialized_tx.hex()
            == "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"
            + "d8270000000000001976a914f0a2b64e56ee2ff57126232f84af6e3a41d4055088ac"
            * cnt
            + "00000000"
        )

    @pytest.mark.setup_client(mnemonic=MNEMONIC12)
    def test_fee_too_high(self, client):
        # tx: 1570416eb4302cf52979afd5e6909e37d8fdd874301f7cc87e547e509cb1caa6
        # input 0: 1.0 BTC

        inp1 = proto.TxInputType(
            address_n=[0],  # 1HWDaLTpTCTtRWyWqZkzWx1wex5NKyncLW
            # amount=100000000,
            prev_hash=TXHASH_157041,
            prev_index=0,
        )

        out1 = proto.TxOutputType(
            address="1MJ2tj2ThBE62zXbBYA5ZaN3fdve5CPAz1",
            amount=100000000 - 510000,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )

        _, serialized_tx = check_sign_tx(
            client, "Bitcoin", [inp1], [out1], fee_too_high=True, unknown_path=True
        )

        assert (
            serialized_tx.hex()
            == "0100000001a6cab19c507e547ec87c1f3074d8fdd8379e90e6d5af7929f52c30b46e417015000000006b483045022100dc3531da7feb261575f03b5b9bbb35edc7f73bb081c92538827105de4102737002200161e34395f6a8ee93979200cb974fa75ccef6d7c14021511cf468eece90d6450121023230848585885f63803a0a8aecdd6538792d5c539215c91698e315bf0253b43dffffffff01d018ee05000000001976a914de9b2a8da088824e8fe51debea566617d851537888ac00000000"
        )

    @pytest.mark.setup_client(mnemonic=MNEMONIC12)
    def test_not_enough_funds(self, client):
        # tx: d5f65ee80147b4bcc70b75e4bbf2d7382021b871bd8867ef8fa525ef50864882
        # input 0: 0.0039 BTC

        inp1 = proto.TxInputType(
            address_n=[0],  # 14LmW5k4ssUrtbAB4255zdqv3b4w1TuX9e
            # amount=390000,
            prev_hash=TXHASH_d5f65e,
            prev_index=0,
        )

        out1 = proto.TxOutputType(
            address="1MJ2tj2ThBE62zXbBYA5ZaN3fdve5CPAz1",
            amount=400000,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )

        with pytest.raises(CallException) as exc:
            check_sign_tx(
                client,
                "Bitcoin",
                [inp1],
                [out1],
                failure=proto.FailureType.NotEnoughFunds,
                unknown_path=True,
            )
        assert exc.value.args[0] == proto.FailureType.NotEnoughFunds

    @pytest.mark.setup_client(mnemonic=MNEMONIC12)
    def test_p2sh(self, client):
        inp1 = proto.TxInputType(
            address_n=[0],  # 14LmW5k4ssUrtbAB4255zdqv3b4w1TuX9e
            # amount=400000,
            prev_hash=TXHASH_54aa56,
            prev_index=1,
        )

        out1 = proto.TxOutputType(
            address="3DKGE1pvPpBAgZj94MbCinwmksewUNNYVR",  # p2sh
            amount=400000 - 10000,
            script_type=proto.OutputScriptType.PAYTOSCRIPTHASH,
        )

        _, serialized_tx = check_sign_tx(
            client, "Bitcoin", [inp1], [out1], unknown_path=True
        )

        # Accepted by network: tx 8cc1f4adf7224ce855cf535a5104594a0004cb3b640d6714fdb00b9128832dd5
        assert (
            serialized_tx.hex()
            == "0100000001a3fb2d38322c3b327e54005cebc0686d52fcdf536e53bb5ef481a7de8056aa54010000006b4830450221009e020b0390ccad533b73b552f8a99a9d827212c558e4f755503674d07c92ad4502202d606f7316990e0461c51d4add25054f19c697aa3e3c2ced4d568f0b2c57e62f0121023230848585885f63803a0a8aecdd6538792d5c539215c91698e315bf0253b43dffffffff0170f305000000000017a9147f844bdb0b8fd54b64e3d16c85dc1170f1ff97c18700000000"
        )

    def test_testnet_big_amount(self, client):
        # This test is testing transaction with amount bigger than fits to uint32

        # tx: 2bac7ad1dec654579a71ea9555463f63ac7b7df9d8ba67b4682bba4e514d0f0c:1
        # input 1: 411102528330 Satoshi

        inp1 = proto.TxInputType(
            address_n=parse_path("m/44'/1'/0'/0/0"),
            amount=411102528330,
            prev_hash=TXHASH_2bac7a,
            prev_index=1,
        )
        out1 = proto.TxOutputType(
            address="mopZWqZZyQc3F2Sy33cvDtJchSAMsnLi7b",  # seed allallall, bip32: m/44'/1'/0'/0/1
            amount=411102528330,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )
        _, serialized_tx = check_sign_tx(client, "Testnet", [inp1], [out1])
        assert (
            serialized_tx.hex()
            == "01000000010c0f4d514eba2b68b467bad8f97d7bac633f465595ea719a5754c6ded17aac2b010000006b4830450221008e3b926f04d8830bd5b67698af25c9e00c9db1b1ef3e5d69af794446753da94a02202d4a7509f26bba29ff643a7ac0d43fb128c1a632cc502b8f44eada8930fb9c9b0121030e669acac1f280d1ddf441cd2ba5e97417bf2689e4bbec86df4f831bf9f7ffd0ffffffff014ac39eb75f0000001976a9145b157a678a10021243307e4bb58f36375aa80e1088ac00000000"
        )

    @pytest.mark.setup_client(mnemonic=MNEMONIC12)
    def test_attack_change_outputs(self, client):
        inp1 = proto.TxInputType(
            address_n=[1],  # 1CK7SJdcb8z9HuvVft3D91HLpLC6KSsGb
            # amount=100000,
            prev_hash=TXHASH_c6be22,
            prev_index=1,
        )

        inp2 = proto.TxInputType(
            address_n=[2],  # 15AeAhtNJNKyowK8qPHwgpXkhsokzLtUpG
            # amount=110000,
            prev_hash=TXHASH_58497a,
            prev_index=1,
        )

        out1 = proto.TxOutputType(
            address="15Jvu3nZNP7u2ipw2533Q9VVgEu2Lu9F2B",
            amount=210000 - 100000 - 10000,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )

        out2 = proto.TxOutputType(
            address_n=[3],  # 1CmzyJp9w3NafXMSEFH4SLYUPAVCSUrrJ5
            amount=100000,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )

        out2.force_confirm = True
        # Test if the transaction can be signed normally
        _, serialized_tx = check_sign_tx(
            client, "Bitcoin", [inp1, inp2], [out1, out2], unknown_path=True
        )

        # Accepted by network: tx c63e24ed820c5851b60c54613fbc4bcb37df6cd49b4c96143e99580a472f79fb
        assert (
            serialized_tx.hex()
            == "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"
        )

        run_attack = False

        def attack_processor(msg):
            nonlocal run_attack
            if msg.tx.outputs and msg.tx.outputs[0] == out2:
                if not run_attack:
                    run_attack = True
                else:
                    # Sign output with another amount
                    msg.tx.outputs[0].amount = 9999999

            return msg

        # Set up attack processors
        client.set_filter(proto.TxAck, attack_processor)

        with pytest.raises(CallException) as exc:
            btc.sign_tx(
                client,
                "Bitcoin",
                [inp1, inp2],
                [out1, out2],
                prev_txes=tx_cache("Bitcoin"),
            )
        assert exc.value.args[0] in (
            proto.FailureType.ProcessError,
            proto.FailureType.DataError,
        )
        assert exc.value.args[1].endswith("Transaction has changed during signing")

    def test_attack_change_input_address(self, client):
        inp1 = proto.TxInputType(
            address_n=parse_path("44'/1'/4'/0/0"),
            # moUJnmge8SRXuediK7bW6t4YfrPqbE6hD7
            prev_hash=TXHASH_d2dcda,
            prev_index=1,
            script_type=proto.InputScriptType.SPENDADDRESS,
        )

        out1 = proto.TxOutputType(
            address="mwue7mokpBRAsJtHqEMcRPanYBmsSmYKvY",
            amount=100000,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )

        out2 = proto.TxOutputType(
            address_n=parse_path("44'/1'/4'/1/0"),
            amount=123400000 - 5000 - 100000,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )

        # Test if the transaction can be signed normally
        _, serialized_tx = check_sign_tx(client, "Testnet", [inp1], [out1, out2])

        assert (
            serialized_tx.hex()
            == "0100000001243e15b53cc553d93ec4e27e16984adc3d885ef107c613a7577fea47f5dadcd2010000006b483045022100eedaadde3a771967beee39f1daa9e9450f72fccdec63488a96d71eeae4224b4002203a22be3c1677d3451c93a49550b69e8f8fc06328823c7e0f633dde13d67ef96b01210364430c9122948e525e2f1c6d88f00f47679274f0810fd8c63754954f310995c1ffffffff02a0860100000000001976a914b3cc67f3349974d0f1b50e9bb5dfdf226f888fa088ac18555907000000001976a914f80fb232a1e54b1fa732bc120cae72eabd7fcf6888ac00000000"
        )

        run_attack = False

        def attack_processor(msg):
            nonlocal run_attack
            if msg.tx.inputs and msg.tx.inputs[0] == inp1:
                if not run_attack:
                    run_attack = True
                else:
                    msg.tx.inputs[0].address_n[2] = H_(12)

            return msg

        client.set_filter(proto.TxAck, attack_processor)
        # Now run the attack, must trigger the exception
        with client:
            client.set_expected_responses(
                [
                    proto.TxRequest(
                        request_type=proto.RequestType.TXINPUT,
                        details=proto.TxRequestDetailsType(request_index=0),
                    ),
                    proto.TxRequest(
                        request_type=proto.RequestType.TXMETA,
                        details=proto.TxRequestDetailsType(tx_hash=TXHASH_d2dcda),
                    ),
                    proto.TxRequest(
                        request_type=proto.RequestType.TXINPUT,
                        details=proto.TxRequestDetailsType(
                            request_index=0, tx_hash=TXHASH_d2dcda
                        ),
                    ),
                    proto.TxRequest(
                        request_type=proto.RequestType.TXOUTPUT,
                        details=proto.TxRequestDetailsType(
                            request_index=0, tx_hash=TXHASH_d2dcda
                        ),
                    ),
                    proto.TxRequest(
                        request_type=proto.RequestType.TXOUTPUT,
                        details=proto.TxRequestDetailsType(
                            request_index=1, tx_hash=TXHASH_d2dcda
                        ),
                    ),
                    proto.TxRequest(
                        request_type=proto.RequestType.TXOUTPUT,
                        details=proto.TxRequestDetailsType(request_index=0),
                    ),
                    proto.ButtonRequest(code=proto.ButtonRequestType.ConfirmOutput),
                    proto.TxRequest(
                        request_type=proto.RequestType.TXOUTPUT,
                        details=proto.TxRequestDetailsType(request_index=1),
                    ),
                    proto.ButtonRequest(code=proto.ButtonRequestType.SignTx),
                    proto.TxRequest(
                        request_type=proto.RequestType.TXINPUT,
                        details=proto.TxRequestDetailsType(request_index=0),
                    ),
                    proto.Failure(code=proto.FailureType.ProcessError),
                ]
            )
            # Now run the attack, must trigger the exception
            with pytest.raises(CallException) as exc:
                btc.sign_tx(
                    client,
                    "Testnet",
                    [inp1],
                    [out1, out2],
                    prev_txes=tx_cache("Testnet"),
                )

            assert exc.value.args[0] == proto.FailureType.ProcessError
            if client.features.model == "1":
                assert exc.value.args[1].endswith("Failed to compile input")
            else:
                assert exc.value.args[1].endswith(
                    "Transaction has changed during signing"
                )

    @pytest.mark.setup_client(mnemonic=MNEMONIC12)
    def test_spend_coinbase(self, client):
        inp1 = proto.TxInputType(
            address_n=[1],  # mfiGQVPcRcaEvQPYDErR34DcCovtxYvUUV
            # amount=390000,
            prev_hash=TXHASH_d6da21,
            prev_index=0,
        )

        out1 = proto.TxOutputType(
            address="mm6FM31rM5Vc3sw5D7kztiBg3jHUzyqF1g",
            amount=2500278230 - 10000,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )

        _, serialized_tx = check_sign_tx(
            client, "Testnet", [inp1], [out1], unknown_path=True
        )

        # Accepted by network: tx
        assert (
            serialized_tx.hex()
            == "010000000136825bfdb78c8ede226c7c4f25a018e99a2c061d63c7fb425fca7c7d6721dad6000000006a473044022047845c366eb24f40be315c7815a154513c444c7989eb80f7ce7ff6aeb703d26a022007c1f5efadf67c5889634fd7ac39a7ce78bffac291673e8772ecd8389c901d9f01210338d78612e990f2eea0c426b5e48a8db70b9d7ed66282b3b26511e0b1c75515a6ffffffff01c6100795000000001976a9143d2496e67f5f57a924353da42d4725b318e7a8ea88ac00000000"
        )

    def test_two_changes(self, client):
        # see 87be0736f202f7c2bff0781b42bad3e0cdcb54761939da69ea793a3735552c56

        # tx: e5040e1bc1ae7667ffb9e5248e90b2fb93cd9150234151ce90e14ab2f5933bcd
        # input 0: 0.31 BTC
        inp1 = proto.TxInputType(
            address_n=parse_path("44'/1'/0'/0/0"),
            # amount=31000000,
            prev_hash=TXHASH_e5040e,
            prev_index=0,
        )

        out1 = proto.TxOutputType(
            address="msj42CCGruhRsFrGATiUuh25dtxYtnpbTx",
            amount=30090000,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )

        out_change1 = proto.TxOutputType(
            address_n=parse_path("44'/1'/0'/1/0"),
            amount=900000,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )

        out_change2 = proto.TxOutputType(
            address_n=parse_path("44'/1'/0'/1/1"),
            amount=10000,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )

        out_change2.force_confirm = True

        check_sign_tx(client, "Testnet", [inp1], [out1, out_change1, out_change2])

    def test_change_on_main_chain_allowed(self, client):
        # see 87be0736f202f7c2bff0781b42bad3e0cdcb54761939da69ea793a3735552c56

        # tx: e5040e1bc1ae7667ffb9e5248e90b2fb93cd9150234151ce90e14ab2f5933bcd
        # input 0: 0.31 BTC
        inp1 = proto.TxInputType(
            address_n=parse_path("44'/1'/0'/0/0"),
            # amount=31000000,
            prev_hash=TXHASH_e5040e,
            prev_index=0,
        )

        out1 = proto.TxOutputType(
            address="msj42CCGruhRsFrGATiUuh25dtxYtnpbTx",
            amount=30090000,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )

        # change on main chain is allowed => treated as a change
        out_change = proto.TxOutputType(
            address_n=parse_path("44'/1'/0'/0/0"),
            amount=900000,
            script_type=proto.OutputScriptType.PAYTOADDRESS,
        )

        check_sign_tx(client, "Testnet", [inp1], [out1, out_change])
