sonhmai
148 lines
6.0 KiB
Python
148 lines
6.0 KiB
Python
# ========= Copyright 2026 @ Strukto.AI All Rights Reserved. =========
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# ========= Copyright 2026 @ Strukto.AI All Rights Reserved. =========
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import pytest
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from mirage.commands.builtin.utils.slash_links import (is_slashed_link,
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mkdir_link_refusal,
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rm_link_refusal)
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from mirage.ops.types import LinkView
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from mirage.types import ContentType, FileStat, FileType, PathSpec
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def _spec(virtual: str, raw_path: str) -> PathSpec:
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return PathSpec(virtual=virtual,
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directory=virtual.rsplit("/", 1)[0] or "/",
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resource_path=virtual.lstrip("/"),
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raw_path=raw_path)
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def _links(link_at: str | None, target: FileStat | None) -> LinkView:
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"""A LinkView answering for exactly one link path.
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Args:
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link_at (str | None): the one path that is a link, or None for a
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namespace holding no links at all.
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target (FileStat | None): what that link resolves to; None is a
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dangling link.
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"""
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async def target_stat(path: str) -> FileStat | None:
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return target if path == link_at else None
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async def exists(path: str) -> bool:
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return target is not None
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return LinkView(
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stat_at=lambda path: (FileStat(name="l", type=FileType.SYMLINK)
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if path == link_at else None),
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children=lambda directory: [],
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subtree=lambda directory: [],
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resolve=lambda path: path,
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exists=exists,
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target_stat=target_stat,
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)
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DIR = FileStat(name="sub", type=FileType.DIRECTORY)
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FILE = FileStat(name="reg", type=FileType.FILE, content=ContentType.TEXT)
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def test_is_slashed_link_needs_both_the_slash_and_the_link():
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links = _links("/data/dlink", DIR)
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assert is_slashed_link(_spec("/data/dlink", "/data/dlink/"), links)
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# The same link without the slash is an ordinary lstat operand.
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assert not is_slashed_link(_spec("/data/dlink", "/data/dlink"), links)
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# A slash on something that is not a link is the guard's business.
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assert not is_slashed_link(_spec("/data/sub", "/data/sub/"), links)
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assert not is_slashed_link(_spec("/data/dlink", "/data/dlink/"), None)
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@pytest.mark.asyncio
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async def test_rm_refuses_a_directory_link_with_eisdir_even_under_f():
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"""GNU: `rm dlink/` and `rm -f dlink/` are both "Is a directory"."""
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links = _links("/data/dlink", DIR)
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spec = _spec("/data/dlink", "/data/dlink/")
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for force in (False, True):
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assert await rm_link_refusal(
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spec, links, recursive=False,
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force=force) == ("rm: cannot remove "
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"'/data/dlink/': Is a directory")
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@pytest.mark.asyncio
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async def test_rm_reports_enotdir_for_everything_else_and_f_silences_it():
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dangling = _links("/data/dangle", None)
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spec = _spec("/data/dangle", "/data/dangle/")
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assert await rm_link_refusal(
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spec, dangling, recursive=False,
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force=False) == ("rm: cannot remove '/data/dangle/': "
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"Not a directory")
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assert await rm_link_refusal(spec, dangling, recursive=False,
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force=True) is None
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# -r turns even a directory link into ENOTDIR (GNU `rm -r dlink/`).
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dir_link = _links("/data/dlink", DIR)
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assert await rm_link_refusal(
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_spec("/data/dlink", "/data/dlink/"),
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dir_link,
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recursive=True,
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force=False) == ("rm: cannot remove '/data/dlink/': "
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"Not a directory")
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@pytest.mark.asyncio
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async def test_rm_passes_through_an_operand_that_is_not_a_slashed_link():
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links = _links("/data/dlink", DIR)
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assert await rm_link_refusal(_spec("/data/dlink", "/data/dlink"),
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links,
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recursive=False,
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force=False) is None
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@pytest.mark.asyncio
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async def test_mkdir_collides_with_a_link_however_it_is_spelled():
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links = _links("/data/dlink", DIR)
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for raw in ("/data/dlink", "/data/dlink/"):
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taken, message = await mkdir_link_refusal(_spec("/data/dlink", raw),
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links,
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parents=False)
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assert taken
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assert message == (f"mkdir: cannot create directory '{raw}': "
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"File exists")
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@pytest.mark.asyncio
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async def test_mkdir_p_is_satisfied_only_by_a_link_to_a_directory():
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spec = _spec("/data/dlink", "/data/dlink")
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taken, message = await mkdir_link_refusal(spec,
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_links("/data/dlink", DIR),
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parents=True)
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assert taken and message is None
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# A link to a file, or a dangling one, still collides under -p.
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for target in (FILE, None):
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taken, message = await mkdir_link_refusal(spec,
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_links(
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"/data/dlink", target),
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parents=True)
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assert taken
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assert message is not None and "File exists" in message
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@pytest.mark.asyncio
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async def test_mkdir_leaves_a_free_name_alone():
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taken, message = await mkdir_link_refusal(_spec("/data/new", "/data/new"),
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_links("/data/dlink", DIR),
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parents=False)
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assert not taken and message is None
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