15 failing tests fail when running `make test` on a Mac

Start by running make test in the Docker-on-Mac setup and compare the listed failures. Read the referenced tests in Lib/test/test_cmd_line_script.py, test_genericpath.py, test_unicode_file.py, test_os.py, test_posix.py, test_zipimport.py, test_socket.py, and test_import. Done means identifying the shared cause and resolving or appropriately handling the 15 Mac failures.

Issue

A total of 15 tests fail when I run make test on the docker container running on a Mac

Hypothesis

Some of these tests seem to be failing due to encoding issues.
My guess is that the mismatch in the underlying filesystem (docker says linux, but I run Mac) could be the root cause.
I noticed that underlying the code for these tests does check for the system architecture, but I am out of my depth here to be 100% sure.
Ex: test_non_ascii -> https://github.com/facebookincubator/cinder/blob/7ccf3d80e70dd1284868b4ce255a2527e22b84a9/Lib/test/test_cmd_line_script.py#L531-L542

Steps to reproduce

• Get a Mac 💻
• Checkout code and build using the instructions in the ReadME
• Run make test

System information

• MacBook Pro (16-inch, 2019)
• OS version: 11.2.3
• Darwin Kernel Version 20.3.0
• xnu-7195.81.3~1/RELEASE_X86_64 x86_64

List of all failing tests

======================================================================
ERROR: test_nonascii_abspath (test.test_posixpath.PosixCommonTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/vol/Lib/test/test_genericpath.py", line 491, in test_nonascii_abspath
    with support.temp_cwd(name):
  File "/vol/Lib/contextlib.py", line 113, in __enter__
    return next(self.gen)
  File "/vol/Lib/test/support/__init__.py", line 1098, in temp_cwd
    with temp_dir(path=name, quiet=quiet) as temp_path:
  File "/vol/Lib/contextlib.py", line 113, in __enter__
    return next(self.gen)
  File "/vol/Lib/test/support/__init__.py", line 1037, in temp_dir
    os.mkdir(path)
OSError: [Errno 92] Protocol not available: b'@test_10166_tmp\xe7w\xf0'

----------------------------------------------------------------------

Ran 74 tests in 0.963s

FAILED (errors=1)
test test_posixpath failed

======================================================================
ERROR: test_nonascii_abspath (test.test_ntpath.NtCommonTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/vol/Lib/test/test_genericpath.py", line 491, in test_nonascii_abspath
    with support.temp_cwd(name):
  File "/vol/Lib/contextlib.py", line 113, in __enter__
    return next(self.gen)
  File "/vol/Lib/test/support/__init__.py", line 1098, in temp_cwd
    with temp_dir(path=name, quiet=quiet) as temp_path:
  File "/vol/Lib/contextlib.py", line 113, in __enter__
    return next(self.gen)
  File "/vol/Lib/test/support/__init__.py", line 1037, in temp_dir
    os.mkdir(path)
OSError: [Errno 92] Protocol not available: b'@test_10166_tmp\xe7w\xf0'

----------------------------------------------------------------------

Ran 71 tests in 0.432s

FAILED (errors=1, skipped=9)
test test_ntpath failed

======================================================================
ERROR: test_directories (test.test_unicode_file.TestUnicodeFiles)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/vol/Lib/test/test_unicode_file.py", line 133, in test_directories
    self._do_directory(TESTFN_UNENCODABLE+ext,
  File "/vol/Lib/test/test_unicode_file.py", line 87, in _do_directory
    os.mkdir(make_name)
OSError: [Errno 92] Protocol not available: '@test_10166_tmp-\udcff.dir'

======================================================================
ERROR: test_single_files (test.test_unicode_file.TestUnicodeFiles)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/vol/Lib/test/test_unicode_file.py", line 123, in test_single_files
    self._test_single(TESTFN_UNENCODABLE)
  File "/vol/Lib/test/test_unicode_file.py", line 104, in _test_single
    create_empty_file(filename)
  File "/vol/Lib/test/support/__init__.py", line 1140, in create_empty_file
    fd = os.open(filename, os.O_WRONLY | os.O_CREAT | os.O_TRUNC)
OSError: [Errno 84] Invalid or incomplete multibyte or wide character: '@test_10166_tmp-\udcff'

----------------------------------------------------------------------

Ran 2 tests in 0.091s

FAILED (errors=2)
test test_unicode_file failed

======================================================================
ERROR: test_listdir (test.test_os.Pep383Tests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/vol/Lib/test/test_os.py", line 2074, in setUp
    os.mkdir(self.dir)
OSError: [Errno 92] Protocol not available: '@test_10166_tmp-\udcff'

======================================================================
ERROR: test_open (test.test_os.Pep383Tests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/vol/Lib/test/test_os.py", line 2074, in setUp
    os.mkdir(self.dir)
OSError: [Errno 92] Protocol not available: '@test_10166_tmp-\udcff'

======================================================================
ERROR: test_stat (test.test_os.Pep383Tests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/vol/Lib/test/test_os.py", line 2074, in setUp
    os.mkdir(self.dir)
OSError: [Errno 92] Protocol not available: '@test_10166_tmp-\udcff'

======================================================================
ERROR: test_statvfs (test.test_os.Pep383Tests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/vol/Lib/test/test_os.py", line 2074, in setUp
    os.mkdir(self.dir)
OSError: [Errno 92] Protocol not available: '@test_10166_tmp-\udcff'

----------------------------------------------------------------------

Ran 291 tests in 74.965s

FAILED (errors=4, skipped=49)

======================================================================
ERROR: test_unencodeable (test.test_imp.NullImporterTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/vol/Lib/test/test_imp.py", line 450, in test_unencodeable
    os.mkdir(name)
OSError: [Errno 92] Protocol not available: '@test_10166_tmp-\udcff'

----------------------------------------------------------------------

Ran 28 tests in 0.812s

FAILED (errors=1)
test test_imp failed


======================================================================
ERROR: test_lchown (test.test_posix.PosixTester)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/vol/Lib/test/test_posix.py", line 794, in test_lchown
    self._test_all_chown_common(posix.lchown, support.TESTFN,
  File "/vol/Lib/test/test_posix.py", line 710, in _test_all_chown_common
    chown_func(first_param, -1, gid)
FileNotFoundError: [Errno 2] No such file or directory: '@test_10166_tmp'

----------------------------------------------------------------------

Ran 141 tests in 6.260s

FAILED (errors=1, skipped=10)
test test_posix failed

======================================================================
ERROR: testUnencodable (test.test_zipimport.UncompressedZipImportTestCase)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/vol/Lib/test/test_zipimport.py", line 652, in testUnencodable
    with ZipFile(filename, "w") as z:
  File "/vol/Lib/zipfile.py", line 1251, in __init__
    self.fp = io.open(file, filemode)
OSError: [Errno 84] Invalid or incomplete multibyte or wide character: '@test_10166_tmp-\udcff.zip'

======================================================================
ERROR: testUnencodable (test.test_zipimport.CompressedZipImportTestCase)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/vol/Lib/test/test_zipimport.py", line 652, in testUnencodable
    with ZipFile(filename, "w") as z:
  File "/vol/Lib/zipfile.py", line 1251, in __init__
    self.fp = io.open(file, filemode)
OSError: [Errno 84] Invalid or incomplete multibyte or wide character: '@test_10166_tmp-\udcff.zip'

----------------------------------------------------------------------

Ran 69 tests in 1.555s

FAILED (errors=2)
test test_zipimport failed

======================================================================
ERROR: testUnencodableAddr (test.test_socket.TestUnixDomain)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/vol/Lib/test/test_socket.py", line 5153, in testUnencodableAddr
    self.bind(self.sock, path)
  File "/vol/Lib/test/test_socket.py", line 5111, in bind
    support.bind_unix_socket(sock, path)
  File "/vol/Lib/test/support/__init__.py", line 793, in bind_unix_socket
    sock.bind(addr)
OSError: [Errno 92] Protocol not available

----------------------------------------------------------------------

Ran 579 tests in 25.838s

FAILED (errors=1, skipped=127)
test test_socket failed

======================================================================
ERROR: test_unencodable_filename (test.test_import.ImportTracebackTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/vol/Lib/test/test_import/__init__.py", line 1270, in test_unencodable_filename
    pyname = script_helper.make_script('', TESTFN_UNENCODABLE, 'pass')
  File "/vol/Lib/test/support/script_helper.py", line 208, in make_script
    with open(script_name, 'w', encoding='utf-8') as script_file:
OSError: [Errno 84] Invalid or incomplete multibyte or wide character: '@test_10166_tmp-\udcff.py'

----------------------------------------------------------------------

Ran 82 tests in 1.985s

FAILED (errors=1, skipped=3)
test test_import failed

======================================================================
ERROR: test_non_ascii (test.test_cmd_line_script.CmdLineTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/vol/Lib/test/test_cmd_line_script.py", line 545, in test_non_ascii
    script_name = _make_test_script(os.curdir, name, source)
  File "/vol/Lib/test/test_cmd_line_script.py", line 79, in _make_test_script
    to_return = make_script(script_dir, script_basename, source)
  File "/vol/Lib/test/support/script_helper.py", line 208, in make_script
    with open(script_name, 'w', encoding='utf-8') as script_file:
OSError: [Errno 84] Invalid or incomplete multibyte or wide character: './@test_10166_tmp\udce7w\udcf0.py'

----------------------------------------------------------------------

Ran 42 tests in 21.665s

FAILED (errors=1)
test test_cmd_line_script failed