58 lines
2.1 KiB
Python
58 lines
2.1 KiB
Python
import pytest
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from pathlib import Path
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from ragger import Firmware
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from ragger.backend import SpeculosBackend, LedgerCommBackend, LedgerWalletBackend, BackendInterface
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from ethereum_client import EthereumClient
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ELFS_DIR = (Path(__file__).parent.parent / "elfs").resolve()
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FWS = [
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Firmware("nanos", "2.1"),
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Firmware("nanox", "2.0.2"),
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Firmware("nanosp", "1.0.3")
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]
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# adding a pytest CLI option "--backend"
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def pytest_addoption(parser):
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print(help(parser.addoption))
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parser.addoption("--backend", action="store", default="speculos")
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# accessing the value of the "--backend" option as a fixture
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@pytest.fixture(scope="session")
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def backend_name(pytestconfig) -> str:
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return pytestconfig.getoption("backend")
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# Providing the firmware as a fixture
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@pytest.fixture(params=FWS)
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def firmware(request) -> Firmware:
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return request.param
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def get_elf_path(firmware: Firmware) -> Path:
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assert ELFS_DIR.is_dir(), f"{ELFS_DIR} is not a directory"
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app = ELFS_DIR / ("app-%s.elf" % firmware.device)
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assert app.is_file(), f"{app} must exist"
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return app
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# Depending on the "--backend" option value, a different backend is
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# instantiated, and the tests will either run on Speculos or on a physical
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# device depending on the backend
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def create_backend(backend: str, firmware: Firmware) -> BackendInterface:
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if backend.lower() == "ledgercomm":
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return LedgerCommBackend(firmware, interface="hid")
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elif backend.lower() == "ledgerwallet":
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return LedgerWalletBackend(firmware)
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elif backend.lower() == "speculos":
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return SpeculosBackend(get_elf_path(firmware), firmware)
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else:
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raise ValueError(f"Backend '{backend}' is unknown. Valid backends are: {BACKENDS}")
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# This fixture will create and return the backend client
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@pytest.fixture
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def backend_client(backend_name: str, firmware: Firmware) -> BackendInterface:
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with create_backend(backend_name, firmware) as b:
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yield b
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# This final fixture will return the properly configured app client, to be used in tests
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@pytest.fixture
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def app_client(backend_client: BackendInterface) -> EthereumClient:
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return EthereumClient(backend_client)
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