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cpython/Lib/test/test_importlib/fixtures.py at master · python-emscripten/cpython · GitHub
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fixtures.py
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cpython
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Lib
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test
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test_importlib
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fixtures.py
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import
os
import
sys
import
shutil
import
pathlib
import
tempfile
import
textwrap
import
contextlib
@
contextlib
.
contextmanager
def
tempdir
():
tmpdir
=
tempfile
.
mkdtemp
()
try
:
yield
pathlib
.
Path
(
tmpdir
)
finally
:
shutil
.
rmtree
(
tmpdir
)
@
contextlib
.
contextmanager
def
save_cwd
():
orig
=
os
.
getcwd
()
try
:
yield
finally
:
os
.
chdir
(
orig
)
@
contextlib
.
contextmanager
def
tempdir_as_cwd
():
with
tempdir
()
as
tmp
:
with
save_cwd
():
os
.
chdir
(
str
(
tmp
))
yield
tmp
@
contextlib
.
contextmanager
def
install_finder
(
finder
):
sys
.
meta_path
.
append
(
finder
)
try
:
yield
finally
:
sys
.
meta_path
.
remove
(
finder
)
class
Fixtures
:
def
setUp
(
self
):
self
.
fixtures
=
contextlib
.
ExitStack
()
self
.
addCleanup
(
self
.
fixtures
.
close
)
class
SiteDir
(
Fixtures
):
def
setUp
(
self
):
super
(
SiteDir
,
self
).
setUp
()
self
.
site_dir
=
self
.
fixtures
.
enter_context
(
tempdir
())
class
OnSysPath
(
Fixtures
):
@
staticmethod
@
contextlib
.
contextmanager
def
add_sys_path
(
dir
):
sys
.
path
[:
0
]
=
[
str
(
dir
)]
try
:
yield
finally
:
sys
.
path
.
remove
(
str
(
dir
))
def
setUp
(
self
):
super
(
OnSysPath
,
self
).
setUp
()
self
.
fixtures
.
enter_context
(
self
.
add_sys_path
(
self
.
site_dir
))
class
DistInfoPkg
(
OnSysPath
,
SiteDir
):
files
=
{
"distinfo_pkg-1.0.0.dist-info"
: {
"METADATA"
:
"""
Name: distinfo-pkg
Author: Steven Ma
Version: 1.0.0
Requires-Dist: wheel >= 1.0
Requires-Dist: pytest; extra == 'test'
"""
,
"RECORD"
:
"mod.py,sha256=abc,20
\n
"
,
"entry_points.txt"
:
"""
[entries]
main = mod:main
ns:sub = mod:main
"""
},
"mod.py"
:
"""
def main():
print("hello world")
"""
,
}
def
setUp
(
self
):
super
(
DistInfoPkg
,
self
).
setUp
()
build_files
(
DistInfoPkg
.
files
,
self
.
site_dir
)
class
DistInfoPkgOffPath
(
SiteDir
):
def
setUp
(
self
):
super
(
DistInfoPkgOffPath
,
self
).
setUp
()
build_files
(
DistInfoPkg
.
files
,
self
.
site_dir
)
class
EggInfoPkg
(
OnSysPath
,
SiteDir
):
files
=
{
"egginfo_pkg.egg-info"
: {
"PKG-INFO"
:
"""
Name: egginfo-pkg
Author: Steven Ma
License: Unknown
Version: 1.0.0
Classifier: Intended Audience :: Developers
Classifier: Topic :: Software Development :: Libraries
"""
,
"SOURCES.txt"
:
"""
mod.py
egginfo_pkg.egg-info/top_level.txt
"""
,
"entry_points.txt"
:
"""
[entries]
main = mod:main
"""
,
"requires.txt"
:
"""
wheel >= 1.0; python_version >= "2.7"
[test]
pytest
"""
,
"top_level.txt"
:
"mod
\n
"
},
"mod.py"
:
"""
def main():
print("hello world")
"""
,
}
def
setUp
(
self
):
super
(
EggInfoPkg
,
self
).
setUp
()
build_files
(
EggInfoPkg
.
files
,
prefix
=
self
.
site_dir
)
class
EggInfoFile
(
OnSysPath
,
SiteDir
):
files
=
{
"egginfo_file.egg-info"
:
"""
Metadata-Version: 1.0
Name: egginfo_file
Version: 0.1
Summary: An example package
Home-page: www.example.com
Author: Eric Haffa-Vee
Author-email: eric@example.coms
License: UNKNOWN
Description: UNKNOWN
Platform: UNKNOWN
"""
,
}
def
setUp
(
self
):
super
(
EggInfoFile
,
self
).
setUp
()
build_files
(
EggInfoFile
.
files
,
prefix
=
self
.
site_dir
)
class
LocalPackage
:
files
=
{
"setup.py"
:
"""
import setuptools
setuptools.setup(name="local-pkg", version="2.0.1")
"""
,
}
def
setUp
(
self
):
self
.
fixtures
=
contextlib
.
ExitStack
()
self
.
addCleanup
(
self
.
fixtures
.
close
)
self
.
fixtures
.
enter_context
(
tempdir_as_cwd
())
build_files
(
self
.
files
)
def
build_files
(
file_defs
,
prefix
=
pathlib
.
Path
()):
"""Build a set of files/directories, as described by the
file_defs dictionary. Each key/value pair in the dictionary is
interpreted as a filename/contents pair. If the contents value is a
dictionary, a directory is created, and the dictionary interpreted
as the files within it, recursively.
For example:
{"README.txt": "A README file",
"foo": {
"__init__.py": "",
"bar": {
"__init__.py": "",
},
"baz.py": "# Some code",
}
}
"""
for
name
,
contents
in
file_defs
.
items
():
full_name
=
prefix
/
name
if
isinstance
(
contents
,
dict
):
full_name
.
mkdir
()
build_files
(
contents
,
prefix
=
full_name
)
else
:
if
isinstance
(
contents
,
bytes
):
with
full_name
.
open
(
'wb'
)
as
f
:
f
.
write
(
contents
)
else
:
with
full_name
.
open
(
'w'
)
as
f
:
f
.
write
(
DALS
(
contents
))
class
FileBuilder
:
def
unicode_filename
(
self
):
try
:
import
test
.
support
except
ImportError
:
# outside CPython, hard-code a unicode snowman
return
'☃'
return
test
.
support
.
FS_NONASCII
or
\
self
.
skip
(
"File system does not support non-ascii."
)
def
DALS
(
str
):
"Dedent and left-strip"
return
textwrap
.
dedent
(
str
).
lstrip
()
class
NullFinder
:
def
find_module
(
self
,
name
):
pass
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