Files
dvc/tests/unit/test_rwlock.py
T
Peter Rowlands (변기호) 833e82a7ea Drop Python 3.5 support (#3792)
* drop python 3.5 support

* dvc: remove fspath() use inside os.path calls

* dvc: replace dvc.compat.fspath with os.fspath

* tests: replace dvc.compat.fspath with os.fspath

* utils: relpath() should use fspath/str

* utils: os.readlink doesn't support path-like obj on Windows until 3.8
2020-05-14 01:46:42 +03:00

96 lines
2.5 KiB
Python

import os
import pytest
from dvc.lock import LockError
from dvc.path_info import PathInfo
from dvc.rwlock import (
RWLockFileCorruptedError,
RWLockFileFormatError,
_edit_rwlock,
rwlock,
)
def test_rwlock(tmp_path):
path = os.fspath(tmp_path)
foo = PathInfo("foo")
with rwlock(path, "cmd1", [foo], []):
with pytest.raises(LockError):
with rwlock(path, "cmd2", [], [foo]):
pass
with rwlock(path, "cmd1", [], [foo]):
with pytest.raises(LockError):
with rwlock(path, "cmd2", [foo], []):
pass
with rwlock(path, "cmd1", [], [foo]):
with pytest.raises(LockError):
with rwlock(path, "cmd2", [], [foo]):
pass
def test_rwlock_reentrant(tmp_path):
path = os.fspath(tmp_path)
foo = PathInfo("foo")
with rwlock(path, "cmd1", [], [foo]):
with rwlock(path, "cmd1", [], [foo]):
pass
with _edit_rwlock(path) as lock:
assert lock == {
"read": {},
"write": {"foo": {"cmd": "cmd1", "pid": os.getpid()}},
}
with rwlock(path, "cmd", [foo], []):
with rwlock(path, "cmd", [foo], []):
pass
with _edit_rwlock(path) as lock:
assert lock == {
"read": {"foo": [{"cmd": "cmd", "pid": os.getpid()}]},
"write": {},
}
def test_rwlock_subdirs(tmp_path):
path = os.fspath(tmp_path)
foo = PathInfo("foo")
subfoo = PathInfo("foo/subfoo")
with rwlock(path, "cmd1", [foo], []):
with pytest.raises(LockError, match=r"subfoo(.|\n)*cmd1"):
with rwlock(path, "cmd2", [], [subfoo]):
pass
with rwlock(path, "cmd1", [], [subfoo]):
with pytest.raises(LockError, match=r"'foo'(.|\n)*cmd1"):
with rwlock(path, "cmd2", [foo], []):
pass
with rwlock(path, "cmd1", [], [subfoo]):
with pytest.raises(LockError):
with rwlock(path, "cmd2", [], [foo]):
pass
with rwlock(path, "cmd1", [subfoo], []):
with rwlock(path, "cmd2", [foo], []):
pass
def test_broken_rwlock(tmp_path):
dir_path = os.fspath(tmp_path)
path = tmp_path / "rwlock"
path.write_text('{"broken": "format"}', encoding="utf-8")
with pytest.raises(RWLockFileFormatError):
with _edit_rwlock(dir_path):
pass
path.write_text("{broken json", encoding="utf-8")
with pytest.raises(RWLockFileCorruptedError):
with _edit_rwlock(dir_path):
pass