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"""Tests for distutils.extension."""
import os
import pathlib
import warnings
from distutils.extension import Extension, read_setup_file
import pytest
from test.support.warnings_helper import check_warnings
class TestExtension:
def test_read_setup_file(self):
# trying to read a Setup file
# (sample extracted from the PyGame project)
setup = os.path.join(os.path.dirname(__file__), 'Setup.sample')
exts = read_setup_file(setup)
names = [ext.name for ext in exts]
names.sort()
# here are the extensions read_setup_file should have created
# out of the file
wanted = [
'_arraysurfarray',
'_camera',
'_numericsndarray',
'_numericsurfarray',
'base',
'bufferproxy',
'cdrom',
'color',
'constants',
'display',
'draw',
'event',
'fastevent',
'font',
'gfxdraw',
'image',
'imageext',
'joystick',
'key',
'mask',
'mixer',
'mixer_music',
'mouse',
'movie',
'overlay',
'pixelarray',
'pypm',
'rect',
'rwobject',
'scrap',
'surface',
'surflock',
'time',
'transform',
]
assert names == wanted
def test_extension_init(self):
# the first argument, which is the name, must be a string
with pytest.raises(TypeError):
Extension(1, [])
ext = Extension('name', [])
assert ext.name == 'name'
# the second argument, which is the list of files, must
# be an iterable of strings or PathLike objects, and not a string
with pytest.raises(TypeError):
Extension('name', 'file')
with pytest.raises(TypeError):
Extension('name', ['file', 1])
ext = Extension('name', ['file1', 'file2'])
assert ext.sources == ['file1', 'file2']
ext = Extension('name', [pathlib.Path('file1'), pathlib.Path('file2')])
assert ext.sources == ['file1', 'file2']
# any non-string iterable of strings or PathLike objects should work
ext = Extension('name', ('file1', 'file2')) # tuple
assert ext.sources == ['file1', 'file2']
ext = Extension('name', {'file1', 'file2'}) # set
assert sorted(ext.sources) == ['file1', 'file2']
ext = Extension('name', iter(['file1', 'file2'])) # iterator
assert ext.sources == ['file1', 'file2']
ext = Extension('name', [pathlib.Path('file1'), 'file2']) # mixed types
assert ext.sources == ['file1', 'file2']
# others arguments have defaults
for attr in (
'include_dirs',
'define_macros',
'undef_macros',
'library_dirs',
'libraries',
'runtime_library_dirs',
'extra_objects',
'extra_compile_args',
'extra_link_args',
'export_symbols',
'swig_opts',
'depends',
):
assert getattr(ext, attr) == []
assert ext.language is None
assert ext.optional is None
# if there are unknown keyword options, warn about them
with check_warnings() as w:
warnings.simplefilter('always')
ext = Extension('name', ['file1', 'file2'], chic=True)
assert len(w.warnings) == 1
assert str(w.warnings[0].message) == "Unknown Extension options: 'chic'"
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