From a3d9cfe3673d7faa62331c31ec068847ff7f08e4 Mon Sep 17 00:00:00 2001
From: Matt Doyle <chief@google.com>
Date: Fri, 9 Dec 2022 05:15:40 -0800
Subject: [PATCH] Removing Glazier dependency on pyfakefs

PiperOrigin-RevId: 494144853
---
 docs/setup/README.md      | 1 -
 glazier/autobuild_test.py | 7 ++-----
 requirements.txt          | 1 -
 3 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/docs/setup/README.md b/docs/setup/README.md
index 5384e97..1a565bc 100644
--- a/docs/setup/README.md
+++ b/docs/setup/README.md
@@ -23,7 +23,6 @@ of their respective owners and not the Glazier developers.
 
 For tests:
 
-*   fakefs: https://pypi.python.org/pypi/pyfakefs
 *   mock: https://pypi.python.org/pypi/mock
 
 ### Resources
diff --git a/glazier/autobuild_test.py b/glazier/autobuild_test.py
index 3656879..76be6f9 100755
--- a/glazier/autobuild_test.py
+++ b/glazier/autobuild_test.py
@@ -22,7 +22,6 @@ from glazier.lib import buildinfo
 from glazier.lib import test_utils
 from glazier.lib import title
 from glazier.lib import winpe
-from pyfakefs import fake_filesystem
 
 from glazier.lib import errors
 
@@ -34,8 +33,6 @@ class AutobuildTest(test_utils.GlazierTestCase):
     super(AutobuildTest, self).setUp()
     self.autobuild = autobuild.AutoBuild()
     autobuild.logging = logs.logging
-    self.filesystem = fake_filesystem.FakeFilesystem()
-    autobuild.os = fake_filesystem.FakeOsModule(self.filesystem)
 
   @mock.patch.object(winpe, 'check_winpe', autospec=True)
   def test_setup_task_list(self, mock_check_winpe):
@@ -47,7 +44,7 @@ class AutobuildTest(test_utils.GlazierTestCase):
     self.assertEqual(self.autobuild._SetupTaskList(), tasklist)
 
     # WinPE
-    self.filesystem.create_file(autobuild.constants.WINPE_TASK_LIST)
+    self.patch_constant_file_path(autobuild.constants, 'WINPE_TASK_LIST')
     mock_check_winpe.return_value = True
     tasklist = autobuild.constants.WINPE_TASK_LIST
     self.assertEqual(self.autobuild._SetupTaskList(), tasklist)
@@ -59,7 +56,7 @@ class AutobuildTest(test_utils.GlazierTestCase):
   @mock.patch.object(autobuild.terminator, 'log_and_exit', autospec=True)
   @mock.patch.object(autobuild, 'os', autospec=True)
   def test_setup_task_list_error(self, mock_os, mock_log_and_exit):
-    self.filesystem.create_file(autobuild.constants.SYS_TASK_LIST)
+    self.patch_constant_file_path(autobuild.constants, 'SYS_TASK_LIST')
     autobuild.FLAGS.preserve_tasks = False
     mock_os.remove.side_effect = OSError
     self.autobuild._SetupTaskList()
diff --git a/requirements.txt b/requirements.txt
index 0074c7e..4b2b450 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,6 @@ absl-py
 backoff
 mock
 ntplib
-pyfakefs==4.7.0
 PyYAML
 requests
 six