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https://github.com/trezor/trezor-firmware.git
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115 lines
3.4 KiB
Python
115 lines
3.4 KiB
Python
import hashlib
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import json
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import re
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import shutil
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from contextlib import contextmanager
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from pathlib import Path
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import pytest
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from . import report
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UI_TESTS_DIR = Path(__file__).parent.resolve()
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HASH_FILE = UI_TESTS_DIR / "fixtures.json"
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HASHES = {}
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def get_test_name(node_id):
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# Test item name is usually function name, but when parametrization is used,
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# parameters are also part of the name. Some functions have very long parameter
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# names (tx hashes etc) that run out of maximum allowable filename length, so
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# we limit the name to first 100 chars. This is not a problem with txhashes.
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new_name = node_id.replace("tests/device_tests/", "")
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# remove ::TestClass:: if present because it is usually the same as the test file name
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new_name = re.sub(r"::.*?::", "-", new_name)
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new_name = new_name.replace("/", "-") # in case there is "/"
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return new_name[:100]
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def _process_recorded(screen_path, test_name):
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# calculate hash
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HASHES[test_name] = _hash_files(screen_path)
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_rename_records(screen_path)
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def _rename_records(screen_path):
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# rename screenshots
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for index, record in enumerate(sorted(screen_path.iterdir())):
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record.replace(screen_path / f"{index:08}.png")
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def _hash_files(path):
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files = path.iterdir()
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hasher = hashlib.sha256()
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for file in sorted(files):
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hasher.update(file.read_bytes())
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return hasher.digest().hex()
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def _process_tested(fixture_test_path, test_name):
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expected_hash = HASHES.get(test_name)
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if expected_hash is None:
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raise ValueError("Hash for '%s' not found in fixtures.json" % test_name)
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actual_path = fixture_test_path / "actual"
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actual_hash = _hash_files(actual_path)
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_rename_records(actual_path)
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if actual_hash != expected_hash:
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file_path = report.failed(
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fixture_test_path, test_name, actual_hash, expected_hash
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)
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pytest.fail(
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"Hash of {} differs.\nExpected: {}\nActual: {}\nDiff file: {}".format(
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test_name, expected_hash, actual_hash, file_path
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)
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)
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else:
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report.passed(fixture_test_path, test_name, actual_hash)
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@contextmanager
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def screen_recording(client, request):
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test_ui = request.config.getoption("ui")
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test_name = get_test_name(request.node.nodeid)
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screens_test_path = UI_TESTS_DIR / "screens" / test_name
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if test_ui == "record":
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screen_path = screens_test_path / "recorded"
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elif test_ui == "test":
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screen_path = screens_test_path / "actual"
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else:
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raise ValueError("Invalid 'ui' option.")
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if not screens_test_path.exists():
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screens_test_path.mkdir()
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# remove previous files
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shutil.rmtree(screen_path, ignore_errors=True)
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screen_path.mkdir()
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try:
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client.debug.start_recording(str(screen_path))
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yield
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finally:
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client.debug.stop_recording()
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if test_ui == "record":
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_process_recorded(screen_path, test_name)
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elif test_ui == "test":
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_process_tested(screens_test_path, test_name)
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else:
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raise ValueError("Invalid 'ui' option.")
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def read_fixtures():
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if not HASH_FILE.exists():
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raise ValueError("File fixtures.json not found.")
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global HASHES
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HASHES = json.loads(HASH_FILE.read_text())
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def write_fixtures():
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HASH_FILE.write_text(json.dumps(HASHES, indent="", sort_keys=True))
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