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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/dep_tracker_unittest.py b/scripts/dep_tracker_unittest.py
index 05a2256..71bb6b7 100644
--- a/scripts/dep_tracker_unittest.py
+++ b/scripts/dep_tracker_unittest.py
@@ -20,53 +20,61 @@
 
 
 class MainTest(cros_test_lib.OutputTestCase):
-  """Tests for the main() function."""
+    """Tests for the main() function."""
 
-  def testHelp(self):
-    """Test that --help is functioning."""
-    argv = ['--help']
+    def testHelp(self):
+        """Test that --help is functioning."""
+        argv = ["--help"]
 
-    with self.OutputCapturer() as output:
-      # Running with --help should exit with code==0.
-      self.AssertFuncSystemExitZero(dep_tracker.main, argv)
+        with self.OutputCapturer() as output:
+            # Running with --help should exit with code==0.
+            self.AssertFuncSystemExitZero(dep_tracker.main, argv)
 
-    # Verify that a message beginning with "usage: " was printed.
-    stdout = output.GetStdout()
-    self.assertTrue(stdout.startswith('usage: '))
+        # Verify that a message beginning with "usage: " was printed.
+        stdout = output.GetStdout()
+        self.assertTrue(stdout.startswith("usage: "))
 
 
 class DepTrackerTest(cros_test_lib.TempDirTestCase):
-  """Tests for the DepTracker() class."""
+    """Tests for the DepTracker() class."""
 
-  def testSimpleDep(self):
-    unittest_lib.BuildELF(os.path.join(self.tempdir, 'libabc.so'),
-                          ['func_a', 'func_b', 'func_c'])
-    unittest_lib.BuildELF(os.path.join(self.tempdir, 'abc_main'),
-                          undefined_symbols=['func_b'],
-                          used_libs=['abc'],
-                          executable=True)
-    dt = dep_tracker.DepTracker(self.tempdir)
-    dt.Init()
-    dt.ComputeELFFileDeps()
+    def testSimpleDep(self):
+        unittest_lib.BuildELF(
+            os.path.join(self.tempdir, "libabc.so"),
+            ["func_a", "func_b", "func_c"],
+        )
+        unittest_lib.BuildELF(
+            os.path.join(self.tempdir, "abc_main"),
+            undefined_symbols=["func_b"],
+            used_libs=["abc"],
+            executable=True,
+        )
+        dt = dep_tracker.DepTracker(self.tempdir)
+        dt.Init()
+        dt.ComputeELFFileDeps()
 
-    self.assertEqual(sorted(dt._files.keys()), ['abc_main', 'libabc.so'])
+        self.assertEqual(sorted(dt._files.keys()), ["abc_main", "libabc.so"])
 
-  def testFiletypeSet(self):
-    """Tests that the 'ftype' member is set for ELF files first."""
-    unittest_lib.BuildELF(os.path.join(self.tempdir, 'libabc.so'),
-                          ['func_a', 'func_b', 'func_c'])
-    osutils.WriteFile(os.path.join(self.tempdir, 'pyscript'),
-                      '#!/usr/bin/python\nimport sys\nsys.exit(42)\n')
-    dt = dep_tracker.DepTracker(self.tempdir)
-    dt.Init()
+    def testFiletypeSet(self):
+        """Tests that the 'ftype' member is set for ELF files first."""
+        unittest_lib.BuildELF(
+            os.path.join(self.tempdir, "libabc.so"),
+            ["func_a", "func_b", "func_c"],
+        )
+        osutils.WriteFile(
+            os.path.join(self.tempdir, "pyscript"),
+            "#!/usr/bin/python\nimport sys\nsys.exit(42)\n",
+        )
+        dt = dep_tracker.DepTracker(self.tempdir)
+        dt.Init()
 
-    # ComputeELFFileDeps() should compute the file type of ELF files so we
-    # don't need to parse them again.
-    dt.ComputeELFFileDeps()
-    self.assertTrue('ftype' in dt._files['libabc.so'])
-    self.assertFalse('ftype' in dt._files['pyscript'])
+        # ComputeELFFileDeps() should compute the file type of ELF files so we
+        # don't need to parse them again.
+        dt.ComputeELFFileDeps()
+        self.assertTrue("ftype" in dt._files["libabc.so"])
+        self.assertFalse("ftype" in dt._files["pyscript"])
 
-    # ComputeFileTypes() shold compute the file type of every file.
-    dt.ComputeFileTypes()
-    self.assertTrue('ftype' in dt._files['libabc.so'])
-    self.assertTrue('ftype' in dt._files['pyscript'])
+        # ComputeFileTypes() shold compute the file type of every file.
+        dt.ComputeFileTypes()
+        self.assertTrue("ftype" in dt._files["libabc.so"])
+        self.assertTrue("ftype" in dt._files["pyscript"])