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93 lines
2.5 KiB
Python
93 lines
2.5 KiB
Python
import errno
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import os
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import pytest
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from dvc.cache import NamedCache
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from dvc.cache.local import LocalCache
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from dvc.path_info import PathInfo
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from dvc.remote.index import RemoteIndexNoop
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from dvc.tree.local import LocalTree
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def test_status_download_optimization(mocker, dvc):
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"""When comparing the status to pull a remote cache,
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And the desired files to fetch are already on the local cache,
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Don't check the existence of the desired files on the remote cache
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"""
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cache = LocalCache(LocalTree(dvc, {}))
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infos = NamedCache()
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infos.add("local", "acbd18db4cc2f85cedef654fccc4a4d8", "foo")
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infos.add("local", "37b51d194a7513e45b56f6524f2d51f2", "bar")
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local_exists = list(infos["local"])
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mocker.patch.object(cache, "hashes_exist", return_value=local_exists)
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other_remote = mocker.Mock()
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other_remote.url = "other_remote"
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other_remote.hashes_exist.return_value = []
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other_remote.index = RemoteIndexNoop()
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other_remote.status(cache, infos, download=True)
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assert other_remote.hashes_exist.call_count == 0
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@pytest.mark.parametrize("link_name", ["hardlink", "symlink"])
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def test_is_protected(tmp_dir, dvc, link_name):
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tree = LocalTree(dvc, {})
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link_method = getattr(tree, link_name)
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(tmp_dir / "foo").write_text("foo")
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foo = PathInfo(tmp_dir / "foo")
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link = PathInfo(tmp_dir / "link")
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link_method(foo, link)
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assert not tree.is_protected(foo)
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assert not tree.is_protected(link)
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tree.protect(foo)
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assert tree.is_protected(foo)
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assert tree.is_protected(link)
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tree.unprotect(link)
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assert not tree.is_protected(link)
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if os.name == "nt" and link_name == "hardlink":
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# NOTE: NTFS doesn't allow deleting read-only files, which forces us to
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# set write perms on the link, which propagates to the source.
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assert not tree.is_protected(foo)
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else:
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assert tree.is_protected(foo)
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@pytest.mark.parametrize("err", [errno.EPERM, errno.EACCES])
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def test_protect_ignore_errors(tmp_dir, mocker, err):
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tmp_dir.gen("foo", "foo")
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foo = PathInfo("foo")
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tree = LocalTree(None, {})
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tree.protect(foo)
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mock_chmod = mocker.patch(
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"os.chmod", side_effect=OSError(err, "something")
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)
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tree.protect(foo)
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assert mock_chmod.called
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def test_protect_ignore_erofs(tmp_dir, mocker):
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tmp_dir.gen("foo", "foo")
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foo = PathInfo("foo")
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tree = LocalTree(None, {})
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mock_chmod = mocker.patch(
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"os.chmod", side_effect=OSError(errno.EROFS, "read-only fs")
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)
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tree.protect(foo)
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assert mock_chmod.called
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