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"""Tests for installer.utils
"""
import base64
import hashlib
import textwrap
from email.message import Message
from io import BytesIO
import pytest
from test_records import SAMPLE_RECORDS
from installer.records import RecordEntry
from installer.utils import (
WheelFilename,
construct_record_file,
copyfileobj_with_hashing,
fix_shebang,
parse_entrypoints,
parse_metadata_file,
parse_wheel_filename,
)
class TestParseMetadata:
def test_basics(self):
result = parse_metadata_file(
textwrap.dedent(
"""\
Name: package
Version: 1.0.0
Multi-Use-Field: 1
Multi-Use-Field: 2
Multi-Use-Field: 3
"""
)
)
assert isinstance(result, Message)
assert result.get("Name") == "package"
assert result.get("version") == "1.0.0"
assert result.get_all("MULTI-USE-FIELD") == ["1", "2", "3"]
class TestParseWheelFilename:
@pytest.mark.parametrize(
"string, expected",
[
# Crafted package name w/ a "complex" version and build tag
(
"package-1!1.0+abc.7-753-py3-none-any.whl",
WheelFilename("package", "1!1.0+abc.7", "753", "py3-none-any"),
),
# Crafted package name w/ a "complex" version and no build tag
(
"package-1!1.0+abc.7-py3-none-any.whl",
WheelFilename("package", "1!1.0+abc.7", None, "py3-none-any"),
),
# Use real tensorflow wheel names
(
"tensorflow-2.3.0-cp38-cp38-macosx_10_11_x86_64.whl",
WheelFilename(
"tensorflow", "2.3.0", None, "cp38-cp38-macosx_10_11_x86_64"
),
),
(
"tensorflow-2.3.0-cp38-cp38-manylinux2010_x86_64.whl",
WheelFilename(
"tensorflow", "2.3.0", None, "cp38-cp38-manylinux2010_x86_64"
),
),
(
"tensorflow-2.3.0-cp38-cp38-win_amd64.whl",
WheelFilename("tensorflow", "2.3.0", None, "cp38-cp38-win_amd64"),
),
],
)
def test_valid_cases(self, string, expected):
got = parse_wheel_filename(string)
assert expected == got, (expected, got)
@pytest.mark.parametrize(
"string",
[
# Not ".whl"
"pip-20.0.0-py2.py3-none-any.zip",
# No tag
"pip-20.0.0.whl",
# Empty tag
"pip-20.0.0---.whl",
],
)
def test_invalid_cases(self, string):
with pytest.raises(ValueError):
parse_wheel_filename(string)
class TestCopyFileObjWithHashing:
def test_basic_functionality(self):
data = b"input data is this"
hash_ = (
base64.urlsafe_b64encode(hashlib.sha256(data).digest())
.decode("ascii")
.rstrip("=")
)
size = len(data)
with BytesIO(data) as source:
with BytesIO() as dest:
result = copyfileobj_with_hashing(source, dest, hash_algorithm="sha256")
written_data = dest.getvalue()
assert result == (hash_, size)
assert written_data == data
class TestScript:
@pytest.mark.parametrize(
("data", "expected"),
[
pytest.param(
b"#!python\ntest",
b"#!/my/python\ntest",
id="python",
),
pytest.param(
b"#!pythonw\ntest",
b"#!/my/python\ntest",
id="pythonw",
),
pytest.param(
b"#!python something\ntest",
b"#!/my/python\ntest",
id="python-with-args",
),
pytest.param(
b"#!python",
b"#!/my/python\n",
id="python-no-content",
),
],
)
def test_replace_shebang(self, data, expected):
with BytesIO(data) as source:
with fix_shebang(source, "/my/python") as stream:
result = stream.read()
assert result == expected
@pytest.mark.parametrize(
"data",
[
b"#!py\ntest",
b"#!something\ntest",
b"#something\ntest",
b"#something",
b"something",
],
)
def test_keep_data(self, data):
with BytesIO(data) as source:
with fix_shebang(source, "/my/python") as stream:
result = stream.read()
assert result == data
class TestConstructRecord:
def test_construct(self):
records = [
(scheme, RecordEntry.from_elements(*elements))
for scheme, elements, _, _ in SAMPLE_RECORDS
]
assert construct_record_file(records).read() == (
b"test1.py,sha256=Y0sCextp4SQtQNU-MSs7SsdxD1W-gfKJtUlEbvZ3i-4,6\n"
b"test2.py,sha256=fW_Xd08Nh2JNptzxbQ09EEwxkedx--LznIau1LK_Gg8,6\n"
b"test3.py,sha256=qwPDTx7OCCEf4qgDn9ZCQZmz9de1X_E7ETSzZHdsRcU,6\n"
b"test4.py,sha256=Y0sCextp4SQtQNU-MSs7SsdxD1W-gfKJtUlEbvZ3i-4,7\n"
b"test5.py,sha256=Y0sCextp4SQtQNU-MSs7SsdxD1W-gfKJtUlEbvZ3i-4,\n"
b"test6.py,,\n"
)
class TestParseEntryPoints:
@pytest.mark.parametrize(
("script", "expected"),
[
pytest.param("", [], id="empty"),
pytest.param(
"""
[foo]
foo = foo.bar
""",
[],
id="unrelated",
),
pytest.param(
"""
[console_scripts]
package = package.__main__:package
""",
[
("package", "package.__main__", "package", "console"),
],
id="cli",
),
pytest.param(
"""
[gui_scripts]
package = package.__main__:package
""",
[
("package", "package.__main__", "package", "gui"),
],
id="gui",
),
pytest.param(
"""
[console_scripts]
magic-cli = magic.cli:main
[gui_scripts]
magic-gui = magic.gui:main
""",
[
("magic-cli", "magic.cli", "main", "console"),
("magic-gui", "magic.gui", "main", "gui"),
],
id="cli-and-gui",
),
],
)
def test_valid(self, script, expected):
iterable = parse_entrypoints(textwrap.dedent(script))
assert list(iterable) == expected, expected
|
