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trezor-firmware/trezorlib/tests/device_tests/conftest.py
matejcik af98a4071a device_tests: allow custom runxfail
We can now selectively runxfail certain tests. This is useful for
accepting PRs into trezor-core:

1. trezor-core is going to get a pytest.ini that sets xfail_strict.
   That means that if an `xfail`ed test actually passes, that will
   break the test suite. So it will be visible when we implement
   a feature for which tests exist.
2. To allow PRs to pass the test suite without touching python-trezor
   directly, we add a new pytest.ini option: run_xfail.
   This adds a list of markers which will ignore `xfail`.
   So:
   2.1 First, the python-trezor PR marks the tests with the name
       of the feature. This commit already does that: Lisk tests
       are marked `@pytest.mark.lisk`, NEMs are `@pytest.mark.nem`,
       etc.
       The tests will be also marked with `xfail`, because the
       feature is not in core yet.
   2.2 Then, the trezor-core PR implements the feature, which makes
       the `xfail`ed tests pass. That breaks the test suite.
   2.3 To fix the test suite, the core PR also adds a `run_xfail`
       to `pytest.ini`: `run_xfail = lisk`.
       (it can take a list: `run_xfail = lisk nem stellar`)
       That will make the test suite behave as if the tests are not
       `xfail`ed. If the feature is implemented correctly, the tests
       will pass.
   2.4 When the PR is accepted to core, the next step should be
       a PR to python-trezor that removes the `xfail`s. After that,
       we should also remove the `run_xfail` option, just to be tidy.
2018-05-22 17:29:03 +02:00

54 lines
1.7 KiB
Python

import pytest
from . import common
from trezorlib.client import TrezorClient
def device_version():
device = common.get_device()
if not device:
raise RuntimeError()
client = TrezorClient(device)
if client.features.model == "T":
return 2
else:
return 1
try:
TREZOR_VERSION = device_version()
except:
raise
TREZOR_VERSION = None
def pytest_addoption(parser):
parser.addini("run_xfail", "List of markers that will run even if marked as xfail", "args", [])
def pytest_runtest_setup(item):
"""
Called for each test item (class, individual tests).
Performs custom processing, mainly useful for trezor CI testing:
* 'skip_t2' tests are skipped on T2 and 'skip_t1' tests are skipped on T1.
* no test should have both skips at the same time
* allows to 'runxfail' tests specified by 'run_xfail' in pytest.ini
"""
if item.get_marker("skip_t1") and item.get_marker("skip_t2"):
pytest.fail("Don't skip tests for both trezors!")
if item.get_marker("skip_t2") and TREZOR_VERSION == 2:
pytest.skip("Test excluded on Trezor T")
if item.get_marker("skip_t1") and TREZOR_VERSION == 1:
pytest.skip("Test excluded on Trezor 1")
xfail = item.get_marker("xfail")
run_xfail = any(item.get_marker(marker) for marker in item.config.getini("run_xfail"))
if xfail and run_xfail:
# Deep hack: pytest's private _evalxfail helper determines whether the test should xfail or not.
# The helper caches its result even before this hook runs.
# Here we force-set the result to False, meaning "test does NOT xfail, run as normal"
# IOW, this is basically per-item "--runxfail"
item._evalxfail.result = False