deep listdir works in python3 on windows

pre_commit/languages/node.py

@@ -30,7 +30,7 @@ def _envdir(prefix: Prefix, version: str) -> str:
     return prefix.path(directory)
 
 
-def get_env_patch(venv: str) -> PatchesT:  # pragma: windows no cover
+def get_env_patch(venv: str) -> PatchesT:
     if sys.platform == 'cygwin':  # pragma: no cover
         _, win_venv, _ = cmd_output('cygpath', '-w', venv)
         install_prefix = fr'{win_venv.strip()}\bin'
@@ -54,14 +54,14 @@ def get_env_patch(venv: str) -> PatchesT:  # pragma: windows no cover
 def in_env(
         prefix: Prefix,
         language_version: str,
-) -> Generator[None, None, None]:  # pragma: windows no cover
+) -> Generator[None, None, None]:
     with envcontext(get_env_patch(_envdir(prefix, language_version))):
         yield
 
 
 def install_environment(
         prefix: Prefix, version: str, additional_dependencies: Sequence[str],
-) -> None:  # pragma: windows no cover
+) -> None:
     additional_dependencies = tuple(additional_dependencies)
     assert prefix.exists('package.json')
     envdir = _envdir(prefix, version)
@@ -91,6 +91,6 @@ def run_hook(
         hook: 'Hook',
         file_args: Sequence[str],
         color: bool,
-) -> Tuple[int, bytes]:  # pragma: windows no cover
+) -> Tuple[int, bytes]:
     with in_env(hook.prefix, hook.language_version):
         return helpers.run_xargs(hook, hook.cmd, file_args, color=color)

testing/util.py

@@ -1,7 +1,6 @@
 import contextlib
 import os.path
 import subprocess
-import sys
 
 import pytest
 
@@ -46,27 +45,6 @@ xfailif_windows_no_ruby = pytest.mark.xfail(
 xfailif_windows = pytest.mark.xfail(os.name == 'nt', reason='windows')
 
 
-def broken_deep_listdir():  # pragma: no cover (platform specific)
-    if sys.platform != 'win32':
-        return False
-    try:
-        os.listdir('\\\\?\\' + os.path.abspath('.'))
-    except OSError:
-        return True
-    try:
-        os.listdir(b'\\\\?\\C:' + b'\\' * 300)
-    except TypeError:
-        return True
-    except OSError:
-        return False
-
-
-xfailif_broken_deep_listdir = pytest.mark.xfail(
-    broken_deep_listdir(),
-    reason='Node on windows requires deep listdir',
-)
-
-
 xfailif_no_symlink = pytest.mark.xfail(
     not hasattr(os, 'symlink'),
     reason='Symlink is not supported on this platform',

tests/repository_test.py

@@ -32,7 +32,6 @@ from testing.util import cwd
 from testing.util import get_resource_path
 from testing.util import skipif_cant_run_docker
 from testing.util import skipif_cant_run_swift
-from testing.util import xfailif_broken_deep_listdir
 from testing.util import xfailif_no_venv
 from testing.util import xfailif_windows_no_ruby
 
@@ -230,7 +229,6 @@ def test_run_a_docker_image_hook(tempdir_factory, store, hook_id):
     )
 
 
-@xfailif_broken_deep_listdir
 def test_run_a_node_hook(tempdir_factory, store):
     _test_hook_repo(
         tempdir_factory, store, 'node_hooks_repo',
@@ -238,7 +236,6 @@ def test_run_a_node_hook(tempdir_factory, store):
     )
 
 
-@xfailif_broken_deep_listdir
 def test_run_versioned_node_hook(tempdir_factory, store):
     _test_hook_repo(
         tempdir_factory, store, 'node_versioned_hooks_repo',
@@ -521,7 +518,6 @@ def test_additional_ruby_dependencies_installed(tempdir_factory, store):
         assert 'tins' in output
 
 
-@xfailif_broken_deep_listdir  # pragma: windows no cover
 def test_additional_node_dependencies_installed(tempdir_factory, store):
     path = make_repo(tempdir_factory, 'node_hooks_repo')
     config = make_config_from_repo(path)