integration: make tests compatible on Windows

Summary:
The changes in this diff makes the code to "run" and skip correctly according to our rules.

All integration tests are now runnable on Windows with mode/win

Differential Revision: D30143255

fbshipit-source-id: b2ddbff7268f182274b3755f4b28df6ac6cdeef4

eden/integration/chown_test.py

@@ -4,9 +4,7 @@
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2.
 
-import grp
 import os
-import pwd
 
 from .lib import repobase, testcase
 
@@ -33,6 +31,9 @@ class ChownTest(testcase.EdenRepoTest):
         return self.create_hg_repo("main")
 
     def setup_eden_test(self) -> None:
+        import grp
+        import pwd
+
         super().setup_eden_test()
         self.nobody_uid = pwd.getpwnam("nobody").pw_uid
         self.nobody_gid = grp.getgrnam("nobody").gr_gid

eden/integration/linux_cgroup_test.py

@@ -7,11 +7,18 @@
 import os
 import os.path
 import pathlib
+import platform
 import unittest
 
-from .lib.linux import LinuxCgroup, is_cgroup_v2_mounted
 from .lib.testcase import IntegrationTestCase
 
+if platform.system() != "Windows":
+    from .lib.linux import LinuxCgroup, is_cgroup_v2_mounted
+else:
+
+    def is_cgroup_v2_mounted():
+        return False
+
 
 class LinuxCgroupTest(IntegrationTestCase):
     def test_parse_proc_file(self) -> None:

eden/integration/mmap_test.py

@@ -7,6 +7,7 @@
 import ctypes
 import mmap
 import os
+import platform
 import subprocess
 from ctypes import c_int, c_size_t, c_ssize_t, c_void_p
 
@@ -18,14 +19,16 @@ from .lib import testcase
 #
 # We have to ignore type errors on the next line until we update to a version
 # of typeshed that includes https://github.com/python/typeshed/pull/3945
-libc = ctypes.CDLL(None)
-c_off_t = c_ssize_t
+libc = None
+if platform.system() != "Windows":
+    libc = ctypes.CDLL(None)
+    c_off_t = c_ssize_t
 
-libc.mmap.argtypes = [c_void_p, c_size_t, c_int, c_int, c_off_t]
-libc.mmap.restype = ctypes.POINTER(ctypes.c_byte)
+    libc.mmap.argtypes = [c_void_p, c_size_t, c_int, c_int, c_off_t]
+    libc.mmap.restype = ctypes.POINTER(ctypes.c_byte)
 
-libc.munmap.restype = c_void_p
-libc.munmap.argtypes = [c_void_p, c_size_t]
+    libc.munmap.restype = c_void_p
+    libc.munmap.argtypes = [c_void_p, c_size_t]
 
 
 @testcase.eden_repo_test

eden/integration/takeover_test.py

@@ -5,7 +5,6 @@
 # GNU General Public License version 2.
 
 import os
-import resource
 import signal
 import sys
 import threading
@@ -34,6 +33,8 @@ class TakeoverTest(testcase.EdenRepoTest):
     enable_fault_injection: bool = True
 
     def populate_repo(self) -> None:
+        import resource
+
         self.pagesize = resource.getpagesize()
         self.page1 = "1" * self.pagesize
         self.page2 = "2" * self.pagesize