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BUG=b:233893248
TEST=CQ

Change-Id: I66591d7a738d241aed3290138c0f68065ab10a6d
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/3879174
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Tested-by: Alex Klein <saklein@chromium.org>
diff --git a/scripts/install_toolchain_unittest.py b/scripts/install_toolchain_unittest.py
index 03c91c8..d503c72 100644
--- a/scripts/install_toolchain_unittest.py
+++ b/scripts/install_toolchain_unittest.py
@@ -14,48 +14,44 @@
 
 
 class ParseArgsTest(cros_test_lib.TempDirTestCase):
-  """Tests for argument parsing and validation rules."""
+    """Tests for argument parsing and validation rules."""
 
-  # pylint: disable=protected-access
-  def setUp(self):
-    D = cros_test_lib.Directory
-    filesystem = (
-        D('build', (
-            D('board', (
-                D('etc', (
-                    'make.conf.board_setup',
-                )),
-            )),
-        )),
-    )
-    cros_test_lib.CreateOnDiskHierarchy(self.tempdir, filesystem)
+    # pylint: disable=protected-access
+    def setUp(self):
+        D = cros_test_lib.Directory
+        filesystem = (
+            D("build", (D("board", (D("etc", ("make.conf.board_setup",)),)),)),
+        )
+        cros_test_lib.CreateOnDiskHierarchy(self.tempdir, filesystem)
 
-    self.chost_value = 'chost'
-    osutils.WriteFile(os.path.join(self.tempdir,
-                                   'build/board/etc/make.conf.board_setup'),
-                      'CHOST="%s"' % self.chost_value)
+        self.chost_value = "chost"
+        osutils.WriteFile(
+            os.path.join(self.tempdir, "build/board/etc/make.conf.board_setup"),
+            'CHOST="%s"' % self.chost_value,
+        )
 
-    self.sysroot_dir = os.path.join(self.tempdir, 'build/board')
-    # make.conf needs to exist to correctly read back config.
-    unittest_lib.create_stub_make_conf(self.sysroot_dir)
+        self.sysroot_dir = os.path.join(self.tempdir, "build/board")
+        # make.conf needs to exist to correctly read back config.
+        unittest_lib.create_stub_make_conf(self.sysroot_dir)
 
-  def testInvalidArgs(self):
-    """Test invalid argument parsing."""
-    with self.assertRaises(SystemExit):
-      install_toolchain._ParseArgs([])
+    def testInvalidArgs(self):
+        """Test invalid argument parsing."""
+        with self.assertRaises(SystemExit):
+            install_toolchain._ParseArgs([])
 
-  def testSysrootCreate(self):
-    """Test the sysroot is correctly built."""
-    opts = install_toolchain._ParseArgs(['--sysroot', self.sysroot_dir])
-    self.assertIsInstance(opts.sysroot, sysroot_lib.Sysroot)
-    self.assertEqual(self.sysroot_dir, opts.sysroot.path)
+    def testSysrootCreate(self):
+        """Test the sysroot is correctly built."""
+        opts = install_toolchain._ParseArgs(["--sysroot", self.sysroot_dir])
+        self.assertIsInstance(opts.sysroot, sysroot_lib.Sysroot)
+        self.assertEqual(self.sysroot_dir, opts.sysroot.path)
 
-  def testToolchain(self):
-    """Test toolchain arg precedence/fallback."""
-    toolchain = 'toolchain'
-    opts = install_toolchain._ParseArgs(['--sysroot', self.sysroot_dir,
-                                         '--toolchain', toolchain])
-    self.assertEqual(toolchain, opts.toolchain)
+    def testToolchain(self):
+        """Test toolchain arg precedence/fallback."""
+        toolchain = "toolchain"
+        opts = install_toolchain._ParseArgs(
+            ["--sysroot", self.sysroot_dir, "--toolchain", toolchain]
+        )
+        self.assertEqual(toolchain, opts.toolchain)
 
-    opts = install_toolchain._ParseArgs(['--sysroot', self.sysroot_dir])
-    self.assertEqual(self.chost_value, opts.toolchain)
+        opts = install_toolchain._ParseArgs(["--sysroot", self.sysroot_dir])
+        self.assertEqual(self.chost_value, opts.toolchain)