Files
dvc/tests/unit/test_rwlock.py
T
Batuhan Taskaya 9aec8f1926 dvc: get rid of path_info
Intermediate PR in removing path_info from our code base.

It is completely removed from the main codebase and is still
being used in tests, which will be migrated in the followups.

For fs-specific simple path manipulation, we've introduced
`fs.path` helper (similar to `os.path`).

Fixes #6774
2021-11-10 00:52:48 +02:00

95 lines
2.5 KiB
Python

import os
import pytest
from dvc.lock import LockError
from dvc.rwlock import (
RWLockFileCorruptedError,
RWLockFileFormatError,
_edit_rwlock,
rwlock,
)
def test_rwlock(tmp_path):
path = os.fspath(tmp_path)
foo = "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 = "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 = "foo"
subfoo = os.path.join("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