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pip/tests/unit/test_cache.py
2023-03-29 08:41:09 +02:00

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Python

import os
from pathlib import Path
from pip._vendor.packaging.tags import Tag, interpreter_name, interpreter_version
from pip._internal.cache import WheelCache, _hash_dict
from pip._internal.models.link import Link
from pip._internal.utils.misc import ensure_dir
def test_falsey_path_none() -> None:
wc = WheelCache("")
assert wc.cache_dir is None
def test_subdirectory_fragment() -> None:
"""
Test the subdirectory URL fragment is part of the cache key.
"""
wc = WheelCache("/tmp/.foo/")
link1 = Link("git+https://g.c/o/r#subdirectory=d1")
link2 = Link("git+https://g.c/o/r#subdirectory=d2")
assert wc.get_path_for_link(link1) != wc.get_path_for_link(link2)
def test_wheel_name_filter(tmpdir: Path) -> None:
"""
Test the wheel cache filters on wheel name when several wheels
for different package are stored under the same cache directory.
"""
wc = WheelCache(os.fspath(tmpdir))
link = Link("https://g.c/package.tar.gz")
cache_path = wc.get_path_for_link(link)
ensure_dir(cache_path)
with open(os.path.join(cache_path, "package-1.0-py3-none-any.whl"), "w"):
pass
# package matches wheel name
cached_link = wc.get(link, "package", [Tag("py3", "none", "any")])
assert cached_link is not link
assert os.path.exists(cached_link.file_path)
# package2 does not match wheel name
assert wc.get(link, "package2", [Tag("py3", "none", "any")]) is link
def test_cache_hash() -> None:
h = _hash_dict({"url": "https://g.c/o/r"})
assert h == "72aa79d3315c181d2cc23239d7109a782de663b6f89982624d8c1e86"
h = _hash_dict({"url": "https://g.c/o/r", "subdirectory": "sd"})
assert h == "8b13391b6791bf7f3edeabb41ea4698d21bcbdbba7f9c7dc9339750d"
h = _hash_dict({"subdirectory": "/\xe9e"})
assert h == "f83b32dfa27a426dec08c21bf006065dd003d0aac78e7fc493d9014d"
def test_link_to_cache(tmpdir: Path) -> None:
"""
Test that Link.from_json() produces Links with consistent cache
locations
"""
wc = WheelCache(os.fspath(tmpdir))
# Define our expectations for stable cache path.
i_name = interpreter_name()
i_version = interpreter_version()
key_parts = {
"url": "https://files.pythonhosted.org/packages/a6/91/"
"86a6eac449ddfae239e93ffc1918cf33fd9bab35c04d1e963b311e347a73/"
"netifaces-0.11.0.tar.gz",
"sha256": "043a79146eb2907edf439899f262b3dfe41717d34124298ed281139a8b93ca32",
"interpreter_name": i_name,
"interpreter_version": i_version,
}
expected_hash = _hash_dict(key_parts)
parts = [
expected_hash[:2],
expected_hash[2:4],
expected_hash[4:6],
expected_hash[6:],
]
pathed_hash = os.path.join(*parts)
# Check working from a Link produces the same result.
file_data = {
"filename": "netifaces-0.11.0.tar.gz",
"hashes": {
"sha256": key_parts["sha256"],
},
"requires-python": "",
"url": key_parts["url"],
"yanked": False,
}
page_url = "https://pypi.org/simple/netifaces/"
link = Link.from_json(file_data=file_data, page_url=page_url)
assert link
path = wc.get_path_for_link(link)
assert pathed_hash in path
def test_get_cache_entry(tmpdir: Path) -> None:
wc = WheelCache(os.fspath(tmpdir))
persi_link = Link("https://g.c/o/r/persi")
persi_path = wc.get_path_for_link(persi_link)
ensure_dir(persi_path)
with open(os.path.join(persi_path, "persi-1.0.0-py3-none-any.whl"), "w"):
pass
ephem_link = Link("https://g.c/o/r/ephem")
ephem_path = wc.get_ephem_path_for_link(ephem_link)
ensure_dir(ephem_path)
with open(os.path.join(ephem_path, "ephem-1.0.0-py3-none-any.whl"), "w"):
pass
other_link = Link("https://g.c/o/r/other")
supported_tags = [Tag("py3", "none", "any")]
entry = wc.get_cache_entry(persi_link, "persi", supported_tags)
assert entry is not None
assert entry.persistent
entry = wc.get_cache_entry(ephem_link, "ephem", supported_tags)
assert entry is not None
assert not entry.persistent
assert wc.get_cache_entry(other_link, "other", supported_tags) is None