pymanager/tests/test_install_command.py at main · python/pymanager · GitHub

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import json

import os

import pytest

from pathlib import Path, PurePath

from manage import install_command as IC

from manage import installs

from manage.commands import BaseCommand

from manage.exceptions import NoInstallFoundError

from manage.logging import LOGGER

@pytest.mark.parametrize("suffix", [".zip", ".nupkg"])

@pytest.mark.parametrize("repair", [False, True])

def test_extract_package_streaming(tmp_path, monkeypatch, suffix, repair):

"""Extract in bounded reads while preserving overwrite and repair behavior."""

import zipfile

package = tmp_path / ("package" + suffix)

prefix = tmp_path / "install"

prefix.mkdir()

existing = prefix / "existing.txt"

existing.write_bytes(b"original")

chunk_size = 10 * 1024 * 1024

data = bytes(range(256)) * (chunk_size // 256 + 1)

archive_prefix = "tools/" if suffix == ".nupkg" else ""

with zipfile.ZipFile(package, "w", zipfile.ZIP_DEFLATED) as zf:

zf.writestr(archive_prefix + "nested/data.bin", data)

zf.writestr(archive_prefix + "empty.txt", b"")

zf.writestr(archive_prefix + "existing.txt", b"replacement")

if suffix == ".nupkg":

zf.writestr("metadata.txt", b"ignored")

reads = []

original_read = zipfile.ZipExtFile.read

def bounded_read(self, n=-1):

assert n == chunk_size

result = original_read(self, n)

if self.name == archive_prefix + "nested/data.bin":

reads.append(len(result))

return result

monkeypatch.setattr(zipfile.ZipExtFile, "read", bounded_read)

progress = []

IC.extract_package(package, prefix, calculate_dest=Path,

on_progress=progress.append, repair=repair)

assert (prefix / "nested/data.bin").read_bytes() == data

assert (prefix / "empty.txt").read_bytes() == b""

assert existing.read_bytes() == (b"replacement" if repair else b"original")

assert not (prefix / "metadata.txt").exists()

assert reads == [chunk_size, 256, 0]

assert progress[0] == 0

assert 100 in progress

assert (None in progress) == (not repair)

def test_print_cli_shortcuts(patched_installs, assert_log, monkeypatch, tmp_path):

class Cmd:

scratch = {}

global_dir = Path(tmp_path)

default_platform = "-64"

def get_installs(self):

return installs.get_installs(None)

(tmp_path / "fake.exe").write_bytes(b"")

monkeypatch.setitem(os.environ, "PATH", f"{os.environ['PATH']};{Cmd.global_dir}")

IC.print_cli_shortcuts(Cmd())

assert_log(

assert_log.skip_until("Installed %s", ["Python 2.0-64", PurePath("C:\\2.0-64")]),

assert_log.skip_until("%s will be launched by %s", ["Python 1.0-64", "py1.0[-64].exe"]),

("%s will be launched by %s", ["Python 1.0-32", "py1.0-32.exe"]),

)

def test_print_path_warning(patched_installs, assert_log, tmp_path):

class Cmd:

scratch = {}

global_dir = Path(tmp_path)

def get_installs(self):

return installs.get_installs(None)

(tmp_path / "fake.exe").write_bytes(b"")

IC.print_cli_shortcuts(Cmd())

assert_log(

assert_log.skip_until(".*Global shortcuts directory is not on PATH")

)

def test_merge_existing_index(tmp_path):

# This function is for multiple downloaded index.jsons, so it merges based

# on the url property, which should usually be a local file.

existing = tmp_path / "index.json"

with open(existing, "w", encoding="utf-8") as f:

json.dump({"versions": [

{"id": "test-1", "url": "test-file-1.zip"},

{"id": "test-2", "url": "test-file-2.zip"},

{"id": "test-3", "url": "test-file-3.zip"},

]}, f)

new = [

# Ensure new versions appear first

{"id": "test-4", "url": "test-file-4.zip"},

# Ensure matching ID doesn't result in overwrite

{"id": "test-1", "url": "test-file-1b.zip"},

# Ensure matching URL excludes original entry

{"id": "test-2b", "url": "test-file-2.zip"},

]

IC._merge_existing_index(new, existing)

assert new == [

{"id": "test-4", "url": "test-file-4.zip"},

{"id": "test-1", "url": "test-file-1b.zip"},

{"id": "test-2b", "url": "test-file-2.zip"},

{"id": "test-1", "url": "test-file-1.zip"},

{"id": "test-3", "url": "test-file-3.zip"},

]

def test_download_package_yes_aborts_background_download(tmp_path):

class Cmd:

force = False

bundled_dir = None

source = "https://example.com/index.json"

confirm = False

_ask = BaseCommand._ask

ask_yn = BaseCommand.ask_yn

def urlretrieve(url, dest, **kwargs):

assert url == "https://example.com/download.zip"

assert kwargs["on_cancel"]() is True

dest.write_bytes(b"download")

dest = tmp_path / "download.zip"

result = IC.download_package(

Cmd(),

{"url": "https://example.com/download.zip"},

dest,

{},

urlretrieve=urlretrieve,

)

assert result == dest

assert dest.read_bytes() == b"download"

def test_merge_existing_index_not_found(tmp_path):

existing = tmp_path / "index.json"

try:

existing.unlink()

except FileNotFoundError:

pass

# Expect no failure and no change

new = [1, 2, 3]

IC._merge_existing_index(new, existing)

assert new == [1, 2, 3]

def test_merge_existing_index_not_valid(tmp_path):

existing = tmp_path / "index.json"

with open(existing, "w", encoding="utf-8") as f:

print("It's not a list of installs", file=f)

print("But more importantly,", file=f)

print("it's not valid JSON!", file=f)

# Expect no failure and no change

new = [1, 2, 3]

IC._merge_existing_index(new, existing)

assert new == [1, 2, 3]

def test_preserve_site(tmp_path):

root = tmp_path / "root"

preserved = tmp_path / "_root"

site = root / "site-packages"

not_site = root / "site-not-packages"

not_site.mkdir(parents=True, exist_ok=True)

A = site / "A"

B = site / "B.txt"

C = site / "C.txt"

A.mkdir(parents=True, exist_ok=True)

B.write_bytes(b"")

C.write_bytes(b"original")

class Cmd:

preserve_site_on_upgrade = False

force = False

repair = False

install = {

"shortcuts": [

{"kind": "site-dirs", "dirs": ["site-packages"]},

}

state = IC._preserve_site(Cmd, root, install)

assert not state

assert not preserved.exists()

Cmd.preserve_site_on_upgrade = True

Cmd.force = True

state = IC._preserve_site(Cmd, root, install)

assert not state

assert not preserved.exists()

Cmd.force = False

Cmd.repair = True

state = IC._preserve_site(Cmd, root, install)

assert not state

assert not preserved.exists()

Cmd.repair = False

state = IC._preserve_site(Cmd, root, install)

assert state == [(site, preserved / "0"), (None, preserved)]

assert preserved.is_dir()

root.rename(root.parent / "ex_root_1")

IC._restore_site(Cmd, state)

assert root.is_dir()

assert A.is_dir()

assert B.is_file()

assert C.is_file()

assert b"original" == C.read_bytes()

assert not preserved.exists()

state = IC._preserve_site(Cmd, root, install)

assert state == [(site, preserved / "0"), (None, preserved)]

assert not C.exists()

C.parent.mkdir(parents=True, exist_ok=True)

C.write_bytes(b"updated")

IC._restore_site(Cmd, state)

assert A.is_dir()

assert B.is_file()

assert C.is_file()

assert b"updated" == C.read_bytes()

assert not preserved.exists()

@pytest.mark.parametrize("default", [1, 0])

def test_write_alias_default(monkeypatch, tmp_path, default):

prefix = Path(tmp_path) / "runtime"

class Cmd:

global_dir = Path(tmp_path) / "bin"

launcher_exe = None

scratch = {}

enable_shortcut_kinds = disable_shortcut_kinds = None

enable_entrypoints = True

def get_installs(self):

return [

{

"id": "test",

"alias": [

{"name": "python3.exe", "target": "p.exe"},

{"name": "pythonw3.exe", "target": "pw.exe", "windowed": 1},

"default": default,

"prefix": prefix,

}

]

prefix.mkdir(exist_ok=True, parents=True)

(prefix / "p.exe").write_bytes(b"")

(prefix / "pw.exe").write_bytes(b"")

created = []

class AliasUtils:

import manage.aliasutils as AU

calculate_aliases = staticmethod(AU.calculate_aliases)

@staticmethod

def create_aliases(cmd, aliases, *, allow_link=True):

created.extend(aliases)

@staticmethod

def cleanup_aliases(cmd, preserve):

pass

IC.update_all_shortcuts(Cmd(), _aliasutils=AliasUtils)

if default:

# Main test: python.exe and pythonw.exe are added in automatically

assert sorted(a.name for a in created) == ["python", "python3.exe", "pythonw", "pythonw3.exe"]

else:

assert sorted(a.name for a in created) == ["python3.exe", "pythonw3.exe"]

# Ensure we still only have the two targets

assert set(a.target for a in created) == {"p.exe", "pw.exe"}

def test_update_all_shortcuts_default_first(tmp_path):

# Regression test for https://github.com/python/pymanager/issues/413

# When the default install is not first in precedence order (e.g. via

# PYTHON_MANAGER_DEFAULT), its entrypoints must still win over the

# first install's, so pip and python resolve to the same runtime.

prefix_new = Path(tmp_path) / "new"

prefix_default = Path(tmp_path) / "default"

for prefix in (prefix_new, prefix_default):

prefix.mkdir(exist_ok=True, parents=True)

(prefix / "python.exe").write_bytes(b"")

(prefix / "shared-target.exe").write_bytes(b"")

class Cmd:

global_dir = Path(tmp_path) / "bin"

launcher_exe = None

scratch = {}

enable_shortcut_kinds = disable_shortcut_kinds = None

enable_entrypoints = False

def get_installs(self):

return [

{

"id": "new",

"alias": [

{"name": "python3.14.exe", "target": "python.exe"},

{"name": "shared.exe", "target": "shared-target.exe"},

"prefix": prefix_new,

{

"id": "default",

"alias": [

{"name": "python3.13.exe", "target": "python.exe"},

{"name": "shared.exe", "target": "shared-target.exe"},

"default": True,

"prefix": prefix_default,

]

created = []

class AliasUtils:

import manage.aliasutils as AU

calculate_aliases = staticmethod(AU.calculate_aliases)

@staticmethod

def create_aliases(cmd, aliases, *, allow_link=True):

created.extend(aliases)

@staticmethod

def cleanup_aliases(cmd, preserve):

pass

IC.update_all_shortcuts(Cmd(), _aliasutils=AliasUtils)

shared = [a for a in created if a.name.casefold() == "shared.exe"]

assert len(shared) == 2

# Default install must come first so first-match-wins picks it

assert shared[0].install["id"] == "default"

assert shared[1].install["id"] == "new"

python_aliases = [a for a in created if a.name in ("python", "pythonw")]

assert python_aliases

assert all(a.install["id"] == "default" for a in python_aliases)

class InstallCommandTestCmd:

def __init__(self, tmp_path, *args, **kwargs):

self.args = args

self.tags = None

self.download_cache = {}

self.scratch = {

"install_command.download_cache": self.download_cache,

}

self.automatic = kwargs.pop("automatic", False)

self.by_id = kwargs.pop("by_id", False)

self.default_install_tag = kwargs.pop("default_install_tag", "1")

self.default_platform = kwargs.pop("default_platform", "-32")

self.default_tag = kwargs.pop("default_tag", "1")

self.download = kwargs.pop("download", None)

if self.download:

self.download = tmp_path / self.download

self.download_dir = tmp_path / kwargs.pop("download_dir", "_cache")

self.dry_run = kwargs.pop("dry_run", True)

self.fallback_source = kwargs.pop("fallback_source", None)

self.force = kwargs.pop("force", True)

self.from_script = kwargs.pop("from_script", None)

self.log_file = kwargs.pop("log_file", None)

self.refresh = kwargs.pop("refresh", False)

self.repair = kwargs.pop("repair", False)

self.shebang_can_run_anything = kwargs.pop("shebang_can_run_anything", False)

self.shebang_can_run_anything_silently = kwargs.pop("shebang_can_run_anything_silently", False)

self.shebang_templates = {}

self.source = kwargs.pop("source", "http://example.com/index.json")

self.target = kwargs.pop("target", None)

if self.target:

self.target = tmp_path / self.target

self.update = kwargs.pop("update", False)

self.virtual_env = kwargs.pop("virtual_env", None)

self.index_installs = [

*kwargs.pop("index_installs", ()),

{

"schema": 1,

"id": "test-32",

"sort-version": "1.1",

"company": "Test",

"tag": "1.1-32",

"install-for": ["1-32", "1.1-32", "1.1-32"],

"display-name": "Test 1.1 (32)",

"executable": "test.exe",

"url": "about:blank",

{

"schema": 1,

"id": "test-32",

"sort-version": "1.0",

"company": "Test",

"tag": "1.0-32",

"install-for": ["1-32", "1.0-32", "1.0-32"],

"display-name": "Test 1.0 (32)",

"executable": "test.exe",

"url": "about:blank",

]

self.download_cache["http://example.com/index.json"] = json.dumps({

"versions": self.index_installs,

})

self.installs = [{

**self.index_installs[-1],

"source": self.source,

"prefix": tmp_path / "test-32",

}]

assert not kwargs

def ask_yn(self, prompt, *args):

LOGGER.info(prompt, *args)

return True

def get_log_file(self):

return self.log_file

def get_installs(self):

return self.installs

def get_install_to_run(self, tag=None, script=None, *, windowed=False):

for i in self.installs:

if i["tag"] == tag or f"{i['company']}/{i['tag']}" == tag:

return i

raise NoInstallFoundError(tag)

def test_install_simple(tmp_path, assert_log):

cmd = InstallCommandTestCmd(tmp_path, "1.1", force=False)

IC.execute(cmd)

assert_log(

assert_log.skip_until("Searching for Python matching %s", ["1.1"]),

assert_log.skip_until(".*Your existing %s install.*", ["Test 1.0 (32)", "Test 1.1 (32)"]),

assert_log.skip_until("Installing %s", ["Test 1.1 (32)"]),

("Tag: %s\\\\%s", ["Test", "1.1-32"]),

)

def test_install_already_installed(tmp_path, assert_log):

cmd = InstallCommandTestCmd(tmp_path, "1.0", force=False)

IC.execute(cmd)

assert_log(

assert_log.skip_until("Searching for Python matching %s", ["1.0"]),

assert_log.skip_until("%s is already installed", ["Test 1.0 (32)"]),

)

def test_install_update(tmp_path, assert_log):

cmd = InstallCommandTestCmd(tmp_path, update=True, force=False,

index_installs=[

{"schema": 1, "id": "test-32", "sort-version": "1.2rc1",

"display-name": "Test 1.2rc1 (32)",

"company": "Test", "tag": "1.2rc-32",

"install-for": ["1-32", "1.2-32", "1.2rc1-32"]}

)

IC.execute(cmd)

assert_log(

assert_log.skip_until("Searching for Python with ID %s", ["test-32"]),

assert_log.skip_until("Updating to %s", ["Test 1.1 (32)"]),

)

def test_install_update_explicit(tmp_path, assert_log):

cmd = InstallCommandTestCmd(tmp_path, "1", update=True, force=False,

index_installs=[

{"schema": 1, "id": "test-32", "sort-version": "1.2rc1",

"display-name": "Test 1.2rc1 (32)",

"company": "Test", "tag": "1.2rc-32",

"install-for": ["1-32", "1.2-32", "1.2rc1-32"]}

)

IC.execute(cmd)

assert_log(

assert_log.skip_until("Searching for Python matching %s", ["1"]),

assert_log.skip_until("Updating to %s", ["Test 1.1 (32)"]),

)

def test_install_update_explicit_pre(tmp_path, assert_log):

cmd = InstallCommandTestCmd(tmp_path, "1rc", update=True, force=False,

index_installs=[

{"schema": 1, "id": "test-32", "sort-version": "1.2rc1",

"display-name": "Test 1.2rc1 (32)",

"company": "Test", "tag": "1.2rc-32",

"install-for": ["1-32", "1.2-32", "1.2rc1-32"]}

)

IC.execute(cmd)

assert_log(

assert_log.skip_until("Searching for Python matching %s", ["1rc"]),

assert_log.skip_until("Updating to %s", ["Test 1.2rc1 (32)"]),

)

def test_install_from_script(tmp_path, assert_log):

cmd = InstallCommandTestCmd(tmp_path, from_script=tmp_path / "t.py")

cmd.from_script.parent.mkdir(parents=True, exist_ok=True)

cmd.from_script.write_text("#! python1.1.exe")

IC.execute(cmd)

assert_log(

assert_log.skip_until("Searching for Python matching"),

assert_log.skip_until("Installing %s", ["Test 1.1 (32)"]),

("Tag: %s\\\\%s", ["Test", "1.1-32"]),

)

def test_failed_install_unwind(tmp_path, monkeypatch, assert_log):

cmd = InstallCommandTestCmd(tmp_path, "1.0", force=False)

cmd.dry_run = False

cmd.preserve_site_on_upgrade = True

inst = cmd.installs[0]

inst.setdefault("shortcuts", []).append({

"kind": "site-dirs", "dirs": ["test-site"],

})

target = tmp_path / "target"

test_file = target / "test-site/file.txt"

test_file.parent.mkdir(parents=True, exist_ok=True)

test_file.write_text("Before")

def remove_existing(*args):

pass

def download_one(*args, **kwargs):

return "<package>"

def extract_package(package, dest, *args, **kwargs):

# site dir should be gone

assert not test_file.is_file()

# create the target directory

dest.mkdir(parents=True, exist_ok=True)

# interrupt the install process

raise RuntimeError("Failed to extract for test reasons")

monkeypatch.setattr(IC, "_remove_existing", remove_existing)

monkeypatch.setattr(IC, "_download_one", download_one)

monkeypatch.setattr(IC, "extract_package", extract_package)

with pytest.raises(RuntimeError):

IC._install_one(cmd, "<source>", inst, target=target)

# site dir should be back

assert test_file.is_file()

assert test_file.read_text() == "Before"

def test_failed_install_unwind_dont_clobber(tmp_path, monkeypatch, assert_log):

cmd = InstallCommandTestCmd(tmp_path, "1.0", force=False)

cmd.dry_run = False

cmd.preserve_site_on_upgrade = True

inst = cmd.installs[0]

inst.setdefault("shortcuts", []).append({

"kind": "site-dirs", "dirs": ["test-site"],

})

target = tmp_path / "test-site"

test_file = target / "file.txt"

test_file.parent.mkdir(parents=True, exist_ok=True)

test_file.write_text("Before")

def download_one(*args, **kwargs):

return "<package>"

def extract_package(package, dest, *args, **kwargs):

# site dir should be gone

assert not test_file.is_file()

# create a new one - it should be preserved

test_file.parent.mkdir(parents=True, exist_ok=True)

test_file.write_text("After")

# interrupt the install process

raise RuntimeError("Failed to extract for test reasons")

monkeypatch.setattr(IC, "_download_one", download_one)

monkeypatch.setattr(IC, "extract_package", extract_package)

with pytest.raises(RuntimeError):

IC._install_one(cmd, "<source>", inst, target=target)

# Ensure file we extracted is still there

assert test_file.read_text() == "After"

def test_finalize_metadata_urls():

class Cmd:

enable_shortcut_kinds = []

disable_shortcut_kinds = []

fallback_source = None

i = {

"url": "http://user:placeholder@example.com/package.zip",

"source": "http://user:placeholder@example.com/index.json",

}

IC._finalize_metadata(Cmd, i)

assert i["url"] == "http://example.com/package.zip"

assert i["source"] == "http://example.com/index.json"

def test_finalize_metadata_fallback_urls():

class Cmd:

enable_shortcut_kinds = []

disable_shortcut_kinds = []

fallback_source = "http://user:placeholder@example.com/index.json"

i = {

"url": "http://user:placeholder@example.com/package.zip",

"source": "http://user:placeholder@example.com/index.json",

}

IC._finalize_metadata(Cmd, i)

assert i["url"] == "http://example.com/package.zip"

assert i["source"] == "http://user:placeholder@example.com/index.json"

def test_finalize_metadata_shortcuts():

class Cmd:

enable_shortcut_kinds = []

disable_shortcut_kinds = []

fallback_source = None

i = {

"url": "",

"shortcuts": [dict(kind=a) for a in "abc"],

}

IC._finalize_metadata(Cmd, i)

assert [j["kind"] for j in i["shortcuts"]] == ["a", "b", "c"]

assert [j["kind"] for j in i["__original-shortcuts"]] == ["a", "b", "c"]

def test_finalize_metadata_shortcuts_disable():

class Cmd:

enable_shortcut_kinds = []

disable_shortcut_kinds = ["b"]

fallback_source = None

i = {

"url": "",

"shortcuts": [dict(kind=a) for a in "abc"],

}

IC._finalize_metadata(Cmd, i)

assert [j["kind"] for j in i["shortcuts"]] == ["a", "c"]

assert [j["kind"] for j in i["__original-shortcuts"]] == ["a", "b", "c"]

def test_finalize_metadata_shortcuts_enable():

class Cmd:

enable_shortcut_kinds = ["b"]

disable_shortcut_kinds = []

fallback_source = None

i = {

"url": "",

"shortcuts": [dict(kind=a) for a in "abc"],

}

IC._finalize_metadata(Cmd, i)

assert [j["kind"] for j in i["shortcuts"]] == ["b"]

assert [j["kind"] for j in i["__original-shortcuts"]] == ["a", "b", "c"]

def test_finalize_metadata_merge_from(tmp_path):

class Cmd:

enable_shortcut_kinds = []

disable_shortcut_kinds = []

fallback_source = None

merge_from = tmp_path / "file.json"

test_url_1 = "https://example.com/"

test_url_2 = "https://example.com/path2"

# merge_from does not exist, but we shouldn't fail

i = {"url": test_url_1}

IC._finalize_metadata(Cmd, i, merge_from)

assert i["url"] == test_url_1

# Update missing fields from merge_from, but don't touch existing ones

with open(merge_from, "w", encoding="utf-8") as f:

json.dump({"url": test_url_1, "data1": "b", "data2": "c"}, f)

i = {"url": test_url_2, "data1": "a"}

IC._finalize_metadata(Cmd, i, merge_from)

assert i["url"] == test_url_2

assert i["data1"] == "a"

assert i["data2"] == "c"

def test_user_provided_source_retained(tmp_path, assert_log, monkeypatch):

cmd = InstallCommandTestCmd(tmp_path, "1.1", force=False)

source1 = cmd.source

source2 = "http://example.com/index-2.json"

cmd.source = source2

cmd.download_cache[source2] = json.dumps({

"versions": [],

"next": source1,

})

def find_one(*args, _orig=IC._find_one, **kwargs):

i = _orig(*args, **kwargs)

assert i["source"] == cmd.source

return i

monkeypatch.setattr(IC, "_find_one", find_one)

IC.execute(cmd)

assert_log(

assert_log.skip_until("Searching for Python matching %s", ["1.1"]),

assert_log.skip_until("Fetching: %s", [source2]),

assert_log.skip_until("No install found.+"),

assert_log.skip_until("Fetching: %s", [source1]),

assert_log.skip_until("Storing %s as source of package", [source2]),

assert_log.skip_until("Installing %s", ["Test 1.1 (32)"]),

("Tag: %s\\\\%s", ["Test", "1.1-32"]),

)

pymanager/tests/test_install_command.py at main · python/pymanager · GitHub

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