Formatting: Format all python code with black.

This CL is probably not what you're looking for, it's only
automated formatting. Ignore it with
`git blame --ignore-rev <revision>` for this commit.

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/api/controller/test_unittest.py b/api/controller/test_unittest.py
index 17cbf2b..cf049e6 100644
--- a/api/controller/test_unittest.py
+++ b/api/controller/test_unittest.py
@@ -27,755 +27,868 @@
 from chromite.service import test as test_service
 
 
-class DebugInfoTestTest(cros_test_lib.MockTempDirTestCase,
-                        api_config.ApiConfigMixin):
-  """Tests for the DebugInfoTest function."""
+class DebugInfoTestTest(
+    cros_test_lib.MockTempDirTestCase, api_config.ApiConfigMixin
+):
+    """Tests for the DebugInfoTest function."""
 
-  def setUp(self):
-    self.board = 'board'
-    self.chroot_path = os.path.join(self.tempdir, 'chroot')
-    self.sysroot_path = '/build/board'
-    self.full_sysroot_path = os.path.join(self.chroot_path,
-                                          self.sysroot_path.lstrip(os.sep))
-    osutils.SafeMakedirs(self.full_sysroot_path)
+    def setUp(self):
+        self.board = "board"
+        self.chroot_path = os.path.join(self.tempdir, "chroot")
+        self.sysroot_path = "/build/board"
+        self.full_sysroot_path = os.path.join(
+            self.chroot_path, self.sysroot_path.lstrip(os.sep)
+        )
+        osutils.SafeMakedirs(self.full_sysroot_path)
 
-  def _GetInput(self, sysroot_path=None, build_target=None):
-    """Helper to build an input message instance."""
-    proto = test_pb2.DebugInfoTestRequest()
-    if sysroot_path:
-      proto.sysroot.path = sysroot_path
-    if build_target:
-      proto.sysroot.build_target.name = build_target
-    return proto
+    def _GetInput(self, sysroot_path=None, build_target=None):
+        """Helper to build an input message instance."""
+        proto = test_pb2.DebugInfoTestRequest()
+        if sysroot_path:
+            proto.sysroot.path = sysroot_path
+        if build_target:
+            proto.sysroot.build_target.name = build_target
+        return proto
 
-  def _GetOutput(self):
-    """Helper to get an empty output message instance."""
-    return test_pb2.DebugInfoTestResponse()
+    def _GetOutput(self):
+        """Helper to get an empty output message instance."""
+        return test_pb2.DebugInfoTestResponse()
 
-  def testValidateOnly(self):
-    """Sanity check that a validate only call does not execute any logic."""
-    patch = self.PatchObject(test_service, 'DebugInfoTest')
-    input_msg = self._GetInput(sysroot_path=self.full_sysroot_path)
-    test_controller.DebugInfoTest(input_msg, self._GetOutput(),
-                                  self.validate_only_config)
-    patch.assert_not_called()
+    def testValidateOnly(self):
+        """Sanity check that a validate only call does not execute any logic."""
+        patch = self.PatchObject(test_service, "DebugInfoTest")
+        input_msg = self._GetInput(sysroot_path=self.full_sysroot_path)
+        test_controller.DebugInfoTest(
+            input_msg, self._GetOutput(), self.validate_only_config
+        )
+        patch.assert_not_called()
 
-  def testMockError(self):
-    """Test mock error call does not execute any logic, returns error."""
-    patch = self.PatchObject(test_service, 'DebugInfoTest')
+    def testMockError(self):
+        """Test mock error call does not execute any logic, returns error."""
+        patch = self.PatchObject(test_service, "DebugInfoTest")
 
-    input_msg = self._GetInput(sysroot_path=self.full_sysroot_path)
-    rc = test_controller.DebugInfoTest(input_msg, self._GetOutput(),
-                                       self.mock_error_config)
-    patch.assert_not_called()
-    self.assertEqual(controller.RETURN_CODE_COMPLETED_UNSUCCESSFULLY, rc)
+        input_msg = self._GetInput(sysroot_path=self.full_sysroot_path)
+        rc = test_controller.DebugInfoTest(
+            input_msg, self._GetOutput(), self.mock_error_config
+        )
+        patch.assert_not_called()
+        self.assertEqual(controller.RETURN_CODE_COMPLETED_UNSUCCESSFULLY, rc)
 
-  def testMockCall(self):
-    """Test mock call does not execute any logic, returns success."""
-    patch = self.PatchObject(test_service, 'DebugInfoTest')
+    def testMockCall(self):
+        """Test mock call does not execute any logic, returns success."""
+        patch = self.PatchObject(test_service, "DebugInfoTest")
 
-    input_msg = self._GetInput(sysroot_path=self.full_sysroot_path)
-    rc = test_controller.DebugInfoTest(input_msg, self._GetOutput(),
-                                       self.mock_call_config)
-    patch.assert_not_called()
-    self.assertEqual(controller.RETURN_CODE_SUCCESS, rc)
+        input_msg = self._GetInput(sysroot_path=self.full_sysroot_path)
+        rc = test_controller.DebugInfoTest(
+            input_msg, self._GetOutput(), self.mock_call_config
+        )
+        patch.assert_not_called()
+        self.assertEqual(controller.RETURN_CODE_SUCCESS, rc)
 
-  def testNoBuildTargetNoSysrootFails(self):
-    """Test missing build target name and sysroot path fails."""
-    input_msg = self._GetInput()
-    output_msg = self._GetOutput()
-    with self.assertRaises(cros_build_lib.DieSystemExit):
-      test_controller.DebugInfoTest(input_msg, output_msg, self.api_config)
+    def testNoBuildTargetNoSysrootFails(self):
+        """Test missing build target name and sysroot path fails."""
+        input_msg = self._GetInput()
+        output_msg = self._GetOutput()
+        with self.assertRaises(cros_build_lib.DieSystemExit):
+            test_controller.DebugInfoTest(
+                input_msg, output_msg, self.api_config
+            )
 
-  def testDebugInfoTest(self):
-    """Call DebugInfoTest with valid sysroot_path."""
-    request = self._GetInput(sysroot_path=self.full_sysroot_path)
+    def testDebugInfoTest(self):
+        """Call DebugInfoTest with valid sysroot_path."""
+        request = self._GetInput(sysroot_path=self.full_sysroot_path)
 
-    test_controller.DebugInfoTest(request, self._GetOutput(), self.api_config)
+        test_controller.DebugInfoTest(
+            request, self._GetOutput(), self.api_config
+        )
 
 
-class BuildTargetUnitTestTest(cros_test_lib.MockTempDirTestCase,
-                              api_config.ApiConfigMixin):
-  """Tests for the UnitTest function."""
+class BuildTargetUnitTestTest(
+    cros_test_lib.MockTempDirTestCase, api_config.ApiConfigMixin
+):
+    """Tests for the UnitTest function."""
 
-  def setUp(self):
-    # Set up portage log directory.
-    self.sysroot = os.path.join(self.tempdir, 'build', 'board')
-    osutils.SafeMakedirs(self.sysroot)
-    self.target_sysroot = sysroot_lib.Sysroot(self.sysroot)
-    self.portage_dir = os.path.join(self.tempdir, 'portage_logdir')
-    self.PatchObject(
-        sysroot_lib.Sysroot, 'portage_logdir', new=self.portage_dir)
-    osutils.SafeMakedirs(self.portage_dir)
+    def setUp(self):
+        # Set up portage log directory.
+        self.sysroot = os.path.join(self.tempdir, "build", "board")
+        osutils.SafeMakedirs(self.sysroot)
+        self.target_sysroot = sysroot_lib.Sysroot(self.sysroot)
+        self.portage_dir = os.path.join(self.tempdir, "portage_logdir")
+        self.PatchObject(
+            sysroot_lib.Sysroot, "portage_logdir", new=self.portage_dir
+        )
+        osutils.SafeMakedirs(self.portage_dir)
 
-  def _GetInput(self,
-                board=None,
-                chroot_path=None,
-                cache_dir=None,
-                empty_sysroot=None,
-                packages=None,
-                blocklist=None):
-    """Helper to build an input message instance."""
-    formatted_packages = []
-    for pkg in packages or []:
-      formatted_packages.append({
-          'category': pkg.category,
-          'package_name': pkg.package
-      })
-    formatted_blocklist = []
-    for pkg in blocklist or []:
-      formatted_blocklist.append({
-          'category': pkg.category,
-          'package_name': pkg.package
-      })
+    def _GetInput(
+        self,
+        board=None,
+        chroot_path=None,
+        cache_dir=None,
+        empty_sysroot=None,
+        packages=None,
+        blocklist=None,
+    ):
+        """Helper to build an input message instance."""
+        formatted_packages = []
+        for pkg in packages or []:
+            formatted_packages.append(
+                {"category": pkg.category, "package_name": pkg.package}
+            )
+        formatted_blocklist = []
+        for pkg in blocklist or []:
+            formatted_blocklist.append(
+                {"category": pkg.category, "package_name": pkg.package}
+            )
 
-    return test_pb2.BuildTargetUnitTestRequest(
-        build_target={'name': board},
-        chroot={
-            'path': chroot_path,
-            'cache_dir': cache_dir
-        },
-        flags={'empty_sysroot': empty_sysroot},
-        packages=formatted_packages,
-        package_blocklist=formatted_blocklist,
-    )
+        return test_pb2.BuildTargetUnitTestRequest(
+            build_target={"name": board},
+            chroot={"path": chroot_path, "cache_dir": cache_dir},
+            flags={"empty_sysroot": empty_sysroot},
+            packages=formatted_packages,
+            package_blocklist=formatted_blocklist,
+        )
 
-  def _GetOutput(self):
-    """Helper to get an empty output message instance."""
-    return test_pb2.BuildTargetUnitTestResponse()
+    def _GetOutput(self):
+        """Helper to get an empty output message instance."""
+        return test_pb2.BuildTargetUnitTestResponse()
 
-  def _CreatePortageLogFile(self, log_path: Union[str, os.PathLike],
-                            pkg_info: package_info.PackageInfo,
-                            timestamp: datetime.datetime) -> str:
-    """Creates a log file for testing for individual packages built by Portage.
+    def _CreatePortageLogFile(
+        self,
+        log_path: Union[str, os.PathLike],
+        pkg_info: package_info.PackageInfo,
+        timestamp: datetime.datetime,
+    ) -> str:
+        """Creates a log file for testing for individual packages built by Portage.
 
-    Args:
-      log_path: The PORTAGE_LOGDIR path.
-      pkg_info: name components for log file.
-      timestamp: Timestamp used to name the file.
-    """
-    path = os.path.join(log_path,
-                        f'{pkg_info.category}:{pkg_info.pvr}:' \
-                        f'{timestamp.strftime("%Y%m%d-%H%M%S")}.log')
-    osutils.WriteFile(
-        path, f'Test log file for package {pkg_info.category}/'
-        f'{pkg_info.package} written to {path}')
-    return path
+        Args:
+          log_path: The PORTAGE_LOGDIR path.
+          pkg_info: name components for log file.
+          timestamp: Timestamp used to name the file.
+        """
+        path = os.path.join(
+            log_path,
+            f"{pkg_info.category}:{pkg_info.pvr}:"
+            f'{timestamp.strftime("%Y%m%d-%H%M%S")}.log',
+        )
+        osutils.WriteFile(
+            path,
+            f"Test log file for package {pkg_info.category}/"
+            f"{pkg_info.package} written to {path}",
+        )
+        return path
 
-  def testValidateOnly(self):
-    """Sanity check that a validate only call does not execute any logic."""
-    patch = self.PatchObject(test_service, 'BuildTargetUnitTest')
+    def testValidateOnly(self):
+        """Sanity check that a validate only call does not execute any logic."""
+        patch = self.PatchObject(test_service, "BuildTargetUnitTest")
 
-    input_msg = self._GetInput(board='board')
-    test_controller.BuildTargetUnitTest(input_msg, self._GetOutput(),
-                                        self.validate_only_config)
-    patch.assert_not_called()
+        input_msg = self._GetInput(board="board")
+        test_controller.BuildTargetUnitTest(
+            input_msg, self._GetOutput(), self.validate_only_config
+        )
+        patch.assert_not_called()
 
-  def testMockCall(self):
-    """Test that a mock call does not execute logic, returns mocked value."""
-    patch = self.PatchObject(test_service, 'BuildTargetUnitTest')
+    def testMockCall(self):
+        """Test that a mock call does not execute logic, returns mocked value."""
+        patch = self.PatchObject(test_service, "BuildTargetUnitTest")
 
-    input_msg = self._GetInput(board='board')
-    response = self._GetOutput()
-    test_controller.BuildTargetUnitTest(input_msg, response,
-                                        self.mock_call_config)
-    patch.assert_not_called()
+        input_msg = self._GetInput(board="board")
+        response = self._GetOutput()
+        test_controller.BuildTargetUnitTest(
+            input_msg, response, self.mock_call_config
+        )
+        patch.assert_not_called()
 
-  def testMockError(self):
-    """Test that a mock error does not execute logic, returns error."""
-    patch = self.PatchObject(test_service, 'BuildTargetUnitTest')
+    def testMockError(self):
+        """Test that a mock error does not execute logic, returns error."""
+        patch = self.PatchObject(test_service, "BuildTargetUnitTest")
 
-    input_msg = self._GetInput(board='board')
-    response = self._GetOutput()
-    rc = test_controller.BuildTargetUnitTest(input_msg, response,
-                                             self.mock_error_config)
-    patch.assert_not_called()
-    self.assertEqual(controller.RETURN_CODE_UNSUCCESSFUL_RESPONSE_AVAILABLE, rc)
-    self.assertTrue(response.failed_package_data)
-    self.assertEqual(response.failed_package_data[0].name.category, 'foo')
-    self.assertEqual(response.failed_package_data[0].name.package_name, 'bar')
-    self.assertEqual(response.failed_package_data[1].name.category, 'cat')
-    self.assertEqual(response.failed_package_data[1].name.package_name, 'pkg')
+        input_msg = self._GetInput(board="board")
+        response = self._GetOutput()
+        rc = test_controller.BuildTargetUnitTest(
+            input_msg, response, self.mock_error_config
+        )
+        patch.assert_not_called()
+        self.assertEqual(
+            controller.RETURN_CODE_UNSUCCESSFUL_RESPONSE_AVAILABLE, rc
+        )
+        self.assertTrue(response.failed_package_data)
+        self.assertEqual(response.failed_package_data[0].name.category, "foo")
+        self.assertEqual(
+            response.failed_package_data[0].name.package_name, "bar"
+        )
+        self.assertEqual(response.failed_package_data[1].name.category, "cat")
+        self.assertEqual(
+            response.failed_package_data[1].name.package_name, "pkg"
+        )
 
-  def testInvalidPackageFails(self):
-    """Test missing result path fails."""
-    # Missing result_path.
-    pkg = package_info.PackageInfo(package='bar')
-    input_msg = self._GetInput(board='board', packages=[pkg])
-    output_msg = self._GetOutput()
-    with self.assertRaises(cros_build_lib.DieSystemExit):
-      test_controller.BuildTargetUnitTest(input_msg, output_msg,
-                                          self.api_config)
+    def testInvalidPackageFails(self):
+        """Test missing result path fails."""
+        # Missing result_path.
+        pkg = package_info.PackageInfo(package="bar")
+        input_msg = self._GetInput(board="board", packages=[pkg])
+        output_msg = self._GetOutput()
+        with self.assertRaises(cros_build_lib.DieSystemExit):
+            test_controller.BuildTargetUnitTest(
+                input_msg, output_msg, self.api_config
+            )
 
-  def testPackageBuildFailure(self):
-    """Test handling of raised BuildPackageFailure."""
-    tempdir = osutils.TempDir(base_dir=self.tempdir)
-    self.PatchObject(osutils, 'TempDir', return_value=tempdir)
+    def testPackageBuildFailure(self):
+        """Test handling of raised BuildPackageFailure."""
+        tempdir = osutils.TempDir(base_dir=self.tempdir)
+        self.PatchObject(osutils, "TempDir", return_value=tempdir)
 
-    pkgs = ['cat/pkg-1.0-r1', 'foo/bar-2.0-r1']
-    cpvrs = [package_info.parse(pkg) for pkg in pkgs]
-    expected = [('cat', 'pkg'), ('foo', 'bar')]
-    new_logs = {}
-    for i, pkg in enumerate(pkgs):
-      self._CreatePortageLogFile(self.portage_dir, cpvrs[i],
-                                 datetime.datetime(2021, 6, 9, 13, 37, 0))
-      new_logs[pkg] = self._CreatePortageLogFile(
-          self.portage_dir, cpvrs[i], datetime.datetime(2021, 6, 9, 16, 20, 0))
+        pkgs = ["cat/pkg-1.0-r1", "foo/bar-2.0-r1"]
+        cpvrs = [package_info.parse(pkg) for pkg in pkgs]
+        expected = [("cat", "pkg"), ("foo", "bar")]
+        new_logs = {}
+        for i, pkg in enumerate(pkgs):
+            self._CreatePortageLogFile(
+                self.portage_dir,
+                cpvrs[i],
+                datetime.datetime(2021, 6, 9, 13, 37, 0),
+            )
+            new_logs[pkg] = self._CreatePortageLogFile(
+                self.portage_dir,
+                cpvrs[i],
+                datetime.datetime(2021, 6, 9, 16, 20, 0),
+            )
 
-    result = test_service.BuildTargetUnitTestResult(1, None)
-    result.failed_pkgs = [package_info.parse(p) for p in pkgs]
-    self.PatchObject(test_service, 'BuildTargetUnitTest', return_value=result)
+        result = test_service.BuildTargetUnitTestResult(1, None)
+        result.failed_pkgs = [package_info.parse(p) for p in pkgs]
+        self.PatchObject(
+            test_service, "BuildTargetUnitTest", return_value=result
+        )
 
-    input_msg = self._GetInput(board='board')
-    output_msg = self._GetOutput()
+        input_msg = self._GetInput(board="board")
+        output_msg = self._GetOutput()
 
-    rc = test_controller.BuildTargetUnitTest(input_msg, output_msg,
-                                             self.api_config)
+        rc = test_controller.BuildTargetUnitTest(
+            input_msg, output_msg, self.api_config
+        )
 
-    self.assertEqual(controller.RETURN_CODE_UNSUCCESSFUL_RESPONSE_AVAILABLE, rc)
-    self.assertTrue(output_msg.failed_package_data)
+        self.assertEqual(
+            controller.RETURN_CODE_UNSUCCESSFUL_RESPONSE_AVAILABLE, rc
+        )
+        self.assertTrue(output_msg.failed_package_data)
 
-    failed_with_logs = []
-    for data in output_msg.failed_package_data:
-      failed_with_logs.append((data.name.category, data.name.package_name))
-      package = controller_util.deserialize_package_info(data.name)
-      self.assertEqual(data.log_path.path, new_logs[package.cpvr])
-    self.assertCountEqual(expected, failed_with_logs)
+        failed_with_logs = []
+        for data in output_msg.failed_package_data:
+            failed_with_logs.append(
+                (data.name.category, data.name.package_name)
+            )
+            package = controller_util.deserialize_package_info(data.name)
+            self.assertEqual(data.log_path.path, new_logs[package.cpvr])
+        self.assertCountEqual(expected, failed_with_logs)
 
-  def testOtherBuildScriptFailure(self):
-    """Test build script failure due to non-package emerge error."""
-    tempdir = osutils.TempDir(base_dir=self.tempdir)
-    self.PatchObject(osutils, 'TempDir', return_value=tempdir)
+    def testOtherBuildScriptFailure(self):
+        """Test build script failure due to non-package emerge error."""
+        tempdir = osutils.TempDir(base_dir=self.tempdir)
+        self.PatchObject(osutils, "TempDir", return_value=tempdir)
 
-    result = test_service.BuildTargetUnitTestResult(1, None)
-    self.PatchObject(test_service, 'BuildTargetUnitTest', return_value=result)
+        result = test_service.BuildTargetUnitTestResult(1, None)
+        self.PatchObject(
+            test_service, "BuildTargetUnitTest", return_value=result
+        )
 
-    pkgs = ['foo/bar', 'cat/pkg']
-    blocklist = [package_info.SplitCPV(p, strict=False) for p in pkgs]
-    input_msg = self._GetInput(
-        board='board', empty_sysroot=True, blocklist=blocklist)
-    output_msg = self._GetOutput()
+        pkgs = ["foo/bar", "cat/pkg"]
+        blocklist = [package_info.SplitCPV(p, strict=False) for p in pkgs]
+        input_msg = self._GetInput(
+            board="board", empty_sysroot=True, blocklist=blocklist
+        )
+        output_msg = self._GetOutput()
 
-    rc = test_controller.BuildTargetUnitTest(input_msg, output_msg,
-                                             self.api_config)
+        rc = test_controller.BuildTargetUnitTest(
+            input_msg, output_msg, self.api_config
+        )
 
-    self.assertEqual(controller.RETURN_CODE_COMPLETED_UNSUCCESSFULLY, rc)
-    self.assertFalse(output_msg.failed_package_data)
+        self.assertEqual(controller.RETURN_CODE_COMPLETED_UNSUCCESSFULLY, rc)
+        self.assertFalse(output_msg.failed_package_data)
 
-  def testBuildTargetUnitTest(self):
-    """Test BuildTargetUnitTest successful call."""
-    pkgs = ['foo/bar', 'cat/pkg']
-    packages = [package_info.SplitCPV(p, strict=False) for p in pkgs]
-    input_msg = self._GetInput(board='board', packages=packages)
+    def testBuildTargetUnitTest(self):
+        """Test BuildTargetUnitTest successful call."""
+        pkgs = ["foo/bar", "cat/pkg"]
+        packages = [package_info.SplitCPV(p, strict=False) for p in pkgs]
+        input_msg = self._GetInput(board="board", packages=packages)
 
-    result = test_service.BuildTargetUnitTestResult(0, None)
-    self.PatchObject(test_service, 'BuildTargetUnitTest', return_value=result)
+        result = test_service.BuildTargetUnitTestResult(0, None)
+        self.PatchObject(
+            test_service, "BuildTargetUnitTest", return_value=result
+        )
 
-    response = self._GetOutput()
-    test_controller.BuildTargetUnitTest(input_msg, response, self.api_config)
-    self.assertFalse(response.failed_package_data)
+        response = self._GetOutput()
+        test_controller.BuildTargetUnitTest(
+            input_msg, response, self.api_config
+        )
+        self.assertFalse(response.failed_package_data)
 
 
 class DockerConstraintsTest(cros_test_lib.MockTestCase):
-  """Tests for Docker argument constraints."""
+    """Tests for Docker argument constraints."""
 
-  def assertValid(self, output):
-    return output is None
+    def assertValid(self, output):
+        return output is None
 
-  def assertInvalid(self, output):
-    return not self.assertValid(output)
+    def assertInvalid(self, output):
+        return not self.assertValid(output)
 
-  def testValidDockerTag(self):
-    """Check logic for validating docker tag format."""
-    # pylint: disable=protected-access
+    def testValidDockerTag(self):
+        """Check logic for validating docker tag format."""
+        # pylint: disable=protected-access
 
-    invalid_tags = [
-        '.invalid-tag',
-        '-invalid-tag',
-        'invalid-tag;',
-        'invalid' * 100,
-    ]
+        invalid_tags = [
+            ".invalid-tag",
+            "-invalid-tag",
+            "invalid-tag;",
+            "invalid" * 100,
+        ]
 
-    for tag in invalid_tags:
-      self.assertInvalid(test_controller._ValidDockerTag(tag))
+        for tag in invalid_tags:
+            self.assertInvalid(test_controller._ValidDockerTag(tag))
 
-    valid_tags = [
-        'valid-tag',
-        'valid-tag-',
-        'valid.tag.',
-    ]
+        valid_tags = [
+            "valid-tag",
+            "valid-tag-",
+            "valid.tag.",
+        ]
 
-    for tag in valid_tags:
-      self.assertValid(test_controller._ValidDockerTag(tag))
+        for tag in valid_tags:
+            self.assertValid(test_controller._ValidDockerTag(tag))
 
-  def testValidDockerLabelKey(self):
-    """Check logic for validating docker label key format."""
-    # pylint: disable=protected-access
+    def testValidDockerLabelKey(self):
+        """Check logic for validating docker label key format."""
+        # pylint: disable=protected-access
 
-    invalid_keys = [
-        'Invalid-keY',
-        'Invalid-key',
-        'invalid-keY',
-        'iNVALID-KEy',
-        'invalid_key',
-        'invalid-key;',
-    ]
+        invalid_keys = [
+            "Invalid-keY",
+            "Invalid-key",
+            "invalid-keY",
+            "iNVALID-KEy",
+            "invalid_key",
+            "invalid-key;",
+        ]
 
-    for key in invalid_keys:
-      self.assertInvalid(test_controller._ValidDockerLabelKey(key))
+        for key in invalid_keys:
+            self.assertInvalid(test_controller._ValidDockerLabelKey(key))
 
-    valid_keys = [
-        'chromeos.valid-key',
-        'chromeos.valid-key-2',
-    ]
+        valid_keys = [
+            "chromeos.valid-key",
+            "chromeos.valid-key-2",
+        ]
 
-    for key in valid_keys:
-      self.assertValid(test_controller._ValidDockerLabelKey(key))
+        for key in valid_keys:
+            self.assertValid(test_controller._ValidDockerLabelKey(key))
 
 
-class BuildTestServiceContainers(cros_test_lib.RunCommandTempDirTestCase,
-                                 api_config.ApiConfigMixin):
-  """Tests for the BuildTestServiceContainers function."""
+class BuildTestServiceContainers(
+    cros_test_lib.RunCommandTempDirTestCase, api_config.ApiConfigMixin
+):
+    """Tests for the BuildTestServiceContainers function."""
 
-  def setUp(self):
-    self.request = test_pb2.BuildTestServiceContainersRequest(
-        chroot={'path': '/path/to/chroot'},
-        build_target={'name': 'build_target'},
-        version='R93-14033.0.0',
-    )
+    def setUp(self):
+        self.request = test_pb2.BuildTestServiceContainersRequest(
+            chroot={"path": "/path/to/chroot"},
+            build_target={"name": "build_target"},
+            version="R93-14033.0.0",
+        )
 
-  def testSuccess(self):
-    """Check passing case with mocked cros_build_lib.run."""
+    def testSuccess(self):
+        """Check passing case with mocked cros_build_lib.run."""
 
-    def ContainerMetadata():
-      """Return mocked ContainerImageInfo proto"""
-      metadata = container_metadata_pb2.ContainerImageInfo()
-      metadata.repository.hostname = 'gcr.io'
-      metadata.repository.project = 'chromeos-bot'
-      metadata.name = 'random-container-name'
-      metadata.digest = (
-          '09b730f8b6a862f9c2705cb3acf3554563325f5fca5c784bf5c98beb2e56f6db')
-      metadata.tags[:] = [
-          'staging-cq-amd64-generic.R96-1.2.3',
-          '8834106026340379089',
-      ]
-      return metadata
+        def ContainerMetadata():
+            """Return mocked ContainerImageInfo proto"""
+            metadata = container_metadata_pb2.ContainerImageInfo()
+            metadata.repository.hostname = "gcr.io"
+            metadata.repository.project = "chromeos-bot"
+            metadata.name = "random-container-name"
+            metadata.digest = "09b730f8b6a862f9c2705cb3acf3554563325f5fca5c784bf5c98beb2e56f6db"
+            metadata.tags[:] = [
+                "staging-cq-amd64-generic.R96-1.2.3",
+                "8834106026340379089",
+            ]
+            return metadata
 
-    def WriteContainerMetadata(path):
-      """Write json formatted metadata to the given file."""
-      osutils.WriteFile(
-          path,
-          json_format.MessageToJson(ContainerMetadata()),
-      )
+        def WriteContainerMetadata(path):
+            """Write json formatted metadata to the given file."""
+            osutils.WriteFile(
+                path,
+                json_format.MessageToJson(ContainerMetadata()),
+            )
 
-    # Write out mocked container metadata to a temporary file.
-    output_path = os.path.join(self.tempdir, 'metadata.jsonpb')
-    self.rc.SetDefaultCmdResult(
-        returncode=0,
-        side_effect=lambda *_, **__: WriteContainerMetadata(output_path))
+        # Write out mocked container metadata to a temporary file.
+        output_path = os.path.join(self.tempdir, "metadata.jsonpb")
+        self.rc.SetDefaultCmdResult(
+            returncode=0,
+            side_effect=lambda *_, **__: WriteContainerMetadata(output_path),
+        )
 
-    # Patch TempDir so that we always use this test's directory.
-    self.PatchObject(osutils.TempDir, '__enter__', return_value=self.tempdir)
+        # Patch TempDir so that we always use this test's directory.
+        self.PatchObject(
+            osutils.TempDir, "__enter__", return_value=self.tempdir
+        )
 
-    response = test_pb2.BuildTestServiceContainersResponse()
-    test_controller.BuildTestServiceContainers(self.request, response,
-                                               self.api_config)
+        response = test_pb2.BuildTestServiceContainersResponse()
+        test_controller.BuildTestServiceContainers(
+            self.request, response, self.api_config
+        )
 
-    self.assertTrue(self.rc.called)
-    for result in response.results:
-      self.assertEqual(result.WhichOneof('result'), 'success')
-      self.assertEqual(result.success.image_info, ContainerMetadata())
+        self.assertTrue(self.rc.called)
+        for result in response.results:
+            self.assertEqual(result.WhichOneof("result"), "success")
+            self.assertEqual(result.success.image_info, ContainerMetadata())
 
-  def testFailure(self):
-    """Check failure case with mocked cros_build_lib.run."""
-    patch = self.PatchObject(
-        cros_build_lib,
-        'run',
-        return_value=cros_build_lib.CompletedProcess(returncode=1))
+    def testFailure(self):
+        """Check failure case with mocked cros_build_lib.run."""
+        patch = self.PatchObject(
+            cros_build_lib,
+            "run",
+            return_value=cros_build_lib.CompletedProcess(returncode=1),
+        )
 
-    response = test_pb2.BuildTestServiceContainersResponse()
-    test_controller.BuildTestServiceContainers(self.request, response,
-                                               self.api_config)
-    patch.assert_called()
-    for result in response.results:
-      self.assertEqual(result.WhichOneof('result'), 'failure')
-      self.assertEqual(result.name, 'Service Builder')
+        response = test_pb2.BuildTestServiceContainersResponse()
+        test_controller.BuildTestServiceContainers(
+            self.request, response, self.api_config
+        )
+        patch.assert_called()
+        for result in response.results:
+            self.assertEqual(result.WhichOneof("result"), "failure")
+            self.assertEqual(result.name, "Service Builder")
 
 
-class ChromiteUnitTestTest(cros_test_lib.MockTestCase,
-                           api_config.ApiConfigMixin):
-  """Tests for the ChromiteInfoTest function."""
+class ChromiteUnitTestTest(
+    cros_test_lib.MockTestCase, api_config.ApiConfigMixin
+):
+    """Tests for the ChromiteInfoTest function."""
 
-  def setUp(self):
-    self.board = 'board'
-    self.chroot_path = '/path/to/chroot'
+    def setUp(self):
+        self.board = "board"
+        self.chroot_path = "/path/to/chroot"
 
-  def _GetInput(self, chroot_path=None):
-    """Helper to build an input message instance."""
-    proto = test_pb2.ChromiteUnitTestRequest(chroot={'path': chroot_path},)
-    return proto
+    def _GetInput(self, chroot_path=None):
+        """Helper to build an input message instance."""
+        proto = test_pb2.ChromiteUnitTestRequest(
+            chroot={"path": chroot_path},
+        )
+        return proto
 
-  def _GetOutput(self):
-    """Helper to get an empty output message instance."""
-    return test_pb2.ChromiteUnitTestResponse()
+    def _GetOutput(self):
+        """Helper to get an empty output message instance."""
+        return test_pb2.ChromiteUnitTestResponse()
 
-  def testValidateOnly(self):
-    """Sanity check that a validate only call does not execute any logic."""
-    patch = self.PatchObject(cros_build_lib, 'run')
+    def testValidateOnly(self):
+        """Sanity check that a validate only call does not execute any logic."""
+        patch = self.PatchObject(cros_build_lib, "run")
 
-    input_msg = self._GetInput(chroot_path=self.chroot_path)
-    test_controller.ChromiteUnitTest(input_msg, self._GetOutput(),
-                                     self.validate_only_config)
-    patch.assert_not_called()
+        input_msg = self._GetInput(chroot_path=self.chroot_path)
+        test_controller.ChromiteUnitTest(
+            input_msg, self._GetOutput(), self.validate_only_config
+        )
+        patch.assert_not_called()
 
-  def testMockError(self):
-    """Test mock error call does not execute any logic, returns error."""
-    patch = self.PatchObject(cros_build_lib, 'run')
+    def testMockError(self):
+        """Test mock error call does not execute any logic, returns error."""
+        patch = self.PatchObject(cros_build_lib, "run")
 
-    input_msg = self._GetInput(chroot_path=self.chroot_path)
-    rc = test_controller.ChromiteUnitTest(input_msg, self._GetOutput(),
-                                          self.mock_error_config)
-    patch.assert_not_called()
-    self.assertEqual(controller.RETURN_CODE_COMPLETED_UNSUCCESSFULLY, rc)
+        input_msg = self._GetInput(chroot_path=self.chroot_path)
+        rc = test_controller.ChromiteUnitTest(
+            input_msg, self._GetOutput(), self.mock_error_config
+        )
+        patch.assert_not_called()
+        self.assertEqual(controller.RETURN_CODE_COMPLETED_UNSUCCESSFULLY, rc)
 
-  def testMockCall(self):
-    """Test mock call does not execute any logic, returns success."""
-    patch = self.PatchObject(cros_build_lib, 'run')
+    def testMockCall(self):
+        """Test mock call does not execute any logic, returns success."""
+        patch = self.PatchObject(cros_build_lib, "run")
 
-    input_msg = self._GetInput(chroot_path=self.chroot_path)
-    rc = test_controller.ChromiteUnitTest(input_msg, self._GetOutput(),
-                                          self.mock_call_config)
-    patch.assert_not_called()
-    self.assertEqual(controller.RETURN_CODE_SUCCESS, rc)
+        input_msg = self._GetInput(chroot_path=self.chroot_path)
+        rc = test_controller.ChromiteUnitTest(
+            input_msg, self._GetOutput(), self.mock_call_config
+        )
+        patch.assert_not_called()
+        self.assertEqual(controller.RETURN_CODE_SUCCESS, rc)
 
-  def testChromiteUnitTest(self):
-    """Call ChromiteUnitTest with mocked cros_build_lib.run."""
-    request = self._GetInput(chroot_path=self.chroot_path)
-    patch = self.PatchObject(
-        cros_build_lib,
-        'run',
-        return_value=cros_build_lib.CompletedProcess(returncode=0))
+    def testChromiteUnitTest(self):
+        """Call ChromiteUnitTest with mocked cros_build_lib.run."""
+        request = self._GetInput(chroot_path=self.chroot_path)
+        patch = self.PatchObject(
+            cros_build_lib,
+            "run",
+            return_value=cros_build_lib.CompletedProcess(returncode=0),
+        )
 
-    test_controller.ChromiteUnitTest(request, self._GetOutput(),
-                                     self.api_config)
-    patch.assert_called_once()
+        test_controller.ChromiteUnitTest(
+            request, self._GetOutput(), self.api_config
+        )
+        patch.assert_called_once()
 
 
-class CrosSigningTestTest(cros_test_lib.RunCommandTestCase,
-                          api_config.ApiConfigMixin):
-  """CrosSigningTest tests."""
+class CrosSigningTestTest(
+    cros_test_lib.RunCommandTestCase, api_config.ApiConfigMixin
+):
+    """CrosSigningTest tests."""
 
-  def setUp(self):
-    self.chroot_path = '/path/to/chroot'
+    def setUp(self):
+        self.chroot_path = "/path/to/chroot"
 
-  def _GetInput(self, chroot_path=None):
-    """Helper to build an input message instance."""
-    proto = test_pb2.CrosSigningTestRequest(chroot={'path': chroot_path},)
-    return proto
+    def _GetInput(self, chroot_path=None):
+        """Helper to build an input message instance."""
+        proto = test_pb2.CrosSigningTestRequest(
+            chroot={"path": chroot_path},
+        )
+        return proto
 
-  def _GetOutput(self):
-    """Helper to get an empty output message instance."""
-    return test_pb2.CrosSigningTestResponse()
+    def _GetOutput(self):
+        """Helper to get an empty output message instance."""
+        return test_pb2.CrosSigningTestResponse()
 
-  def testValidateOnly(self):
-    """Sanity check that a validate only call does not execute any logic."""
-    test_controller.CrosSigningTest(None, None, self.validate_only_config)
-    self.assertFalse(self.rc.call_count)
+    def testValidateOnly(self):
+        """Sanity check that a validate only call does not execute any logic."""
+        test_controller.CrosSigningTest(None, None, self.validate_only_config)
+        self.assertFalse(self.rc.call_count)
 
-  def testMockCall(self):
-    """Test mock call does not execute any logic, returns success."""
-    rc = test_controller.CrosSigningTest(None, None, self.mock_call_config)
-    self.assertFalse(self.rc.call_count)
-    self.assertEqual(controller.RETURN_CODE_SUCCESS, rc)
+    def testMockCall(self):
+        """Test mock call does not execute any logic, returns success."""
+        rc = test_controller.CrosSigningTest(None, None, self.mock_call_config)
+        self.assertFalse(self.rc.call_count)
+        self.assertEqual(controller.RETURN_CODE_SUCCESS, rc)
 
-  def testCrosSigningTest(self):
-    """Call CrosSigningTest with mocked cros_build_lib.run."""
-    request = self._GetInput(chroot_path=self.chroot_path)
-    patch = self.PatchObject(
-        cros_build_lib,
-        'run',
-        return_value=cros_build_lib.CompletedProcess(returncode=0))
+    def testCrosSigningTest(self):
+        """Call CrosSigningTest with mocked cros_build_lib.run."""
+        request = self._GetInput(chroot_path=self.chroot_path)
+        patch = self.PatchObject(
+            cros_build_lib,
+            "run",
+            return_value=cros_build_lib.CompletedProcess(returncode=0),
+        )
 
-    test_controller.CrosSigningTest(request, self._GetOutput(), self.api_config)
-    patch.assert_called_once()
+        test_controller.CrosSigningTest(
+            request, self._GetOutput(), self.api_config
+        )
+        patch.assert_called_once()
 
 
-class SimpleChromeWorkflowTestTest(cros_test_lib.MockTestCase,
-                                   api_config.ApiConfigMixin):
-  """Test the SimpleChromeWorkflowTest endpoint."""
+class SimpleChromeWorkflowTestTest(
+    cros_test_lib.MockTestCase, api_config.ApiConfigMixin
+):
+    """Test the SimpleChromeWorkflowTest endpoint."""
 
-  @staticmethod
-  def _Output():
-    return test_pb2.SimpleChromeWorkflowTestResponse()
+    @staticmethod
+    def _Output():
+        return test_pb2.SimpleChromeWorkflowTestResponse()
 
-  def _Input(self,
-             sysroot_path=None,
-             build_target=None,
-             chrome_root=None,
-             goma_config=None):
-    proto = test_pb2.SimpleChromeWorkflowTestRequest()
-    if sysroot_path:
-      proto.sysroot.path = sysroot_path
-    if build_target:
-      proto.sysroot.build_target.name = build_target
-    if chrome_root:
-      proto.chrome_root = chrome_root
-    if goma_config:
-      proto.goma_config = goma_config
-    return proto
-
-  def setUp(self):
-    self.chrome_path = 'path/to/chrome'
-    self.sysroot_dir = 'build/board'
-    self.build_target = 'amd64'
-    self.mock_simple_chrome_workflow_test = self.PatchObject(
-        test_service, 'SimpleChromeWorkflowTest')
-
-  def testMissingBuildTarget(self):
-    """Test SimpleChromeWorkflowTest dies when build_target not set."""
-    input_proto = self._Input(
+    def _Input(
+        self,
+        sysroot_path=None,
         build_target=None,
-        sysroot_path='/sysroot/dir',
-        chrome_root='/chrome/path')
-    with self.assertRaises(cros_build_lib.DieSystemExit):
-      test_controller.SimpleChromeWorkflowTest(input_proto, None,
-                                               self.api_config)
+        chrome_root=None,
+        goma_config=None,
+    ):
+        proto = test_pb2.SimpleChromeWorkflowTestRequest()
+        if sysroot_path:
+            proto.sysroot.path = sysroot_path
+        if build_target:
+            proto.sysroot.build_target.name = build_target
+        if chrome_root:
+            proto.chrome_root = chrome_root
+        if goma_config:
+            proto.goma_config = goma_config
+        return proto
 
-  def testMissingSysrootPath(self):
-    """Test SimpleChromeWorkflowTest dies when build_target not set."""
-    input_proto = self._Input(
-        build_target='board', sysroot_path=None, chrome_root='/chrome/path')
-    with self.assertRaises(cros_build_lib.DieSystemExit):
-      test_controller.SimpleChromeWorkflowTest(input_proto, None,
-                                               self.api_config)
+    def setUp(self):
+        self.chrome_path = "path/to/chrome"
+        self.sysroot_dir = "build/board"
+        self.build_target = "amd64"
+        self.mock_simple_chrome_workflow_test = self.PatchObject(
+            test_service, "SimpleChromeWorkflowTest"
+        )
 
-  def testMissingChromeRoot(self):
-    """Test SimpleChromeWorkflowTest dies when build_target not set."""
-    input_proto = self._Input(
-        build_target='board', sysroot_path='/sysroot/dir', chrome_root=None)
-    with self.assertRaises(cros_build_lib.DieSystemExit):
-      test_controller.SimpleChromeWorkflowTest(input_proto, None,
-                                               self.api_config)
+    def testMissingBuildTarget(self):
+        """Test SimpleChromeWorkflowTest dies when build_target not set."""
+        input_proto = self._Input(
+            build_target=None,
+            sysroot_path="/sysroot/dir",
+            chrome_root="/chrome/path",
+        )
+        with self.assertRaises(cros_build_lib.DieSystemExit):
+            test_controller.SimpleChromeWorkflowTest(
+                input_proto, None, self.api_config
+            )
 
-  def testSimpleChromeWorkflowTest(self):
-    """Call SimpleChromeWorkflowTest with valid args and temp dir."""
-    request = self._Input(
-        sysroot_path='sysroot_path',
-        build_target='board',
-        chrome_root='/path/to/chrome')
-    response = self._Output()
+    def testMissingSysrootPath(self):
+        """Test SimpleChromeWorkflowTest dies when build_target not set."""
+        input_proto = self._Input(
+            build_target="board", sysroot_path=None, chrome_root="/chrome/path"
+        )
+        with self.assertRaises(cros_build_lib.DieSystemExit):
+            test_controller.SimpleChromeWorkflowTest(
+                input_proto, None, self.api_config
+            )
 
-    test_controller.SimpleChromeWorkflowTest(request, response, self.api_config)
-    self.mock_simple_chrome_workflow_test.assert_called()
+    def testMissingChromeRoot(self):
+        """Test SimpleChromeWorkflowTest dies when build_target not set."""
+        input_proto = self._Input(
+            build_target="board", sysroot_path="/sysroot/dir", chrome_root=None
+        )
+        with self.assertRaises(cros_build_lib.DieSystemExit):
+            test_controller.SimpleChromeWorkflowTest(
+                input_proto, None, self.api_config
+            )
 
-  def testValidateOnly(self):
-    request = self._Input(
-        sysroot_path='sysroot_path',
-        build_target='board',
-        chrome_root='/path/to/chrome')
-    test_controller.SimpleChromeWorkflowTest(request, self._Output(),
-                                             self.validate_only_config)
-    self.mock_simple_chrome_workflow_test.assert_not_called()
+    def testSimpleChromeWorkflowTest(self):
+        """Call SimpleChromeWorkflowTest with valid args and temp dir."""
+        request = self._Input(
+            sysroot_path="sysroot_path",
+            build_target="board",
+            chrome_root="/path/to/chrome",
+        )
+        response = self._Output()
 
-  def testMockCall(self):
-    """Test mock call does not execute any logic, returns success."""
-    patch = self.mock_simple_chrome_workflow_test = self.PatchObject(
-        test_service, 'SimpleChromeWorkflowTest')
+        test_controller.SimpleChromeWorkflowTest(
+            request, response, self.api_config
+        )
+        self.mock_simple_chrome_workflow_test.assert_called()
 
-    request = self._Input(
-        sysroot_path='sysroot_path',
-        build_target='board',
-        chrome_root='/path/to/chrome')
-    rc = test_controller.SimpleChromeWorkflowTest(request, self._Output(),
-                                                  self.mock_call_config)
-    patch.assert_not_called()
-    self.assertEqual(controller.RETURN_CODE_SUCCESS, rc)
+    def testValidateOnly(self):
+        request = self._Input(
+            sysroot_path="sysroot_path",
+            build_target="board",
+            chrome_root="/path/to/chrome",
+        )
+        test_controller.SimpleChromeWorkflowTest(
+            request, self._Output(), self.validate_only_config
+        )
+        self.mock_simple_chrome_workflow_test.assert_not_called()
+
+    def testMockCall(self):
+        """Test mock call does not execute any logic, returns success."""
+        patch = self.mock_simple_chrome_workflow_test = self.PatchObject(
+            test_service, "SimpleChromeWorkflowTest"
+        )
+
+        request = self._Input(
+            sysroot_path="sysroot_path",
+            build_target="board",
+            chrome_root="/path/to/chrome",
+        )
+        rc = test_controller.SimpleChromeWorkflowTest(
+            request, self._Output(), self.mock_call_config
+        )
+        patch.assert_not_called()
+        self.assertEqual(controller.RETURN_CODE_SUCCESS, rc)
 
 
 class VmTestTest(cros_test_lib.RunCommandTestCase, api_config.ApiConfigMixin):
-  """Test the VmTest endpoint."""
+    """Test the VmTest endpoint."""
 
-  def _GetInput(self, **kwargs):
-    values = dict(
-        build_target=common_pb2.BuildTarget(name='target'),
-        vm_path=common_pb2.Path(
-            path='/path/to/image.bin', location=common_pb2.Path.INSIDE),
-        test_harness=test_pb2.VmTestRequest.TAST,
-        vm_tests=[test_pb2.VmTestRequest.VmTest(pattern='suite')],
-        ssh_options=test_pb2.VmTestRequest.SshOptions(
-            port=1234,
-            private_key_path={
-                'path': '/path/to/id_rsa',
-                'location': common_pb2.Path.INSIDE
-            }),
-    )
-    values.update(kwargs)
-    return test_pb2.VmTestRequest(**values)
+    def _GetInput(self, **kwargs):
+        values = dict(
+            build_target=common_pb2.BuildTarget(name="target"),
+            vm_path=common_pb2.Path(
+                path="/path/to/image.bin", location=common_pb2.Path.INSIDE
+            ),
+            test_harness=test_pb2.VmTestRequest.TAST,
+            vm_tests=[test_pb2.VmTestRequest.VmTest(pattern="suite")],
+            ssh_options=test_pb2.VmTestRequest.SshOptions(
+                port=1234,
+                private_key_path={
+                    "path": "/path/to/id_rsa",
+                    "location": common_pb2.Path.INSIDE,
+                },
+            ),
+        )
+        values.update(kwargs)
+        return test_pb2.VmTestRequest(**values)
 
-  def _Output(self):
-    return test_pb2.VmTestResponse()
+    def _Output(self):
+        return test_pb2.VmTestResponse()
 
-  def testValidateOnly(self):
-    """Sanity check that a validate only call does not execute any logic."""
-    test_controller.VmTest(self._GetInput(), None, self.validate_only_config)
-    self.assertEqual(0, self.rc.call_count)
+    def testValidateOnly(self):
+        """Sanity check that a validate only call does not execute any logic."""
+        test_controller.VmTest(
+            self._GetInput(), None, self.validate_only_config
+        )
+        self.assertEqual(0, self.rc.call_count)
 
-  def testMockCall(self):
-    """Test mock call does not execute any logic."""
-    patch = self.PatchObject(cros_build_lib, 'run')
+    def testMockCall(self):
+        """Test mock call does not execute any logic."""
+        patch = self.PatchObject(cros_build_lib, "run")
 
-    request = self._GetInput()
-    response = self._Output()
-    # VmTest does not return a value, checking mocked value is flagged by lint.
-    test_controller.VmTest(request, response, self.mock_call_config)
-    patch.assert_not_called()
+        request = self._GetInput()
+        response = self._Output()
+        # VmTest does not return a value, checking mocked value is flagged by lint.
+        test_controller.VmTest(request, response, self.mock_call_config)
+        patch.assert_not_called()
 
-  def testTastAllOptions(self):
-    """Test VmTest for Tast with all options set."""
-    test_controller.VmTest(self._GetInput(), None, self.api_config)
-    self.assertCommandContains([
-        'cros_run_test',
-        '--debug',
-        '--no-display',
-        '--copy-on-write',
-        '--board',
-        'target',
-        '--image-path',
-        '/path/to/image.bin',
-        '--tast',
-        'suite',
-        '--ssh-port',
-        '1234',
-        '--private-key',
-        '/path/to/id_rsa',
-    ])
+    def testTastAllOptions(self):
+        """Test VmTest for Tast with all options set."""
+        test_controller.VmTest(self._GetInput(), None, self.api_config)
+        self.assertCommandContains(
+            [
+                "cros_run_test",
+                "--debug",
+                "--no-display",
+                "--copy-on-write",
+                "--board",
+                "target",
+                "--image-path",
+                "/path/to/image.bin",
+                "--tast",
+                "suite",
+                "--ssh-port",
+                "1234",
+                "--private-key",
+                "/path/to/id_rsa",
+            ]
+        )
 
-  def testAutotestAllOptions(self):
-    """Test VmTest for Autotest with all options set."""
-    input_proto = self._GetInput(test_harness=test_pb2.VmTestRequest.AUTOTEST)
-    test_controller.VmTest(input_proto, None, self.api_config)
-    self.assertCommandContains([
-        'cros_run_test',
-        '--debug',
-        '--no-display',
-        '--copy-on-write',
-        '--board',
-        'target',
-        '--image-path',
-        '/path/to/image.bin',
-        '--autotest',
-        'suite',
-        '--ssh-port',
-        '1234',
-        '--private-key',
-        '/path/to/id_rsa',
-        '--test_that-args=--allow-chrome-crashes',
-    ])
+    def testAutotestAllOptions(self):
+        """Test VmTest for Autotest with all options set."""
+        input_proto = self._GetInput(
+            test_harness=test_pb2.VmTestRequest.AUTOTEST
+        )
+        test_controller.VmTest(input_proto, None, self.api_config)
+        self.assertCommandContains(
+            [
+                "cros_run_test",
+                "--debug",
+                "--no-display",
+                "--copy-on-write",
+                "--board",
+                "target",
+                "--image-path",
+                "/path/to/image.bin",
+                "--autotest",
+                "suite",
+                "--ssh-port",
+                "1234",
+                "--private-key",
+                "/path/to/id_rsa",
+                "--test_that-args=--allow-chrome-crashes",
+            ]
+        )
 
-  def testMissingBuildTarget(self):
-    """Test VmTest dies when build_target not set."""
-    input_proto = self._GetInput(build_target=None)
-    with self.assertRaises(cros_build_lib.DieSystemExit):
-      test_controller.VmTest(input_proto, None, self.api_config)
+    def testMissingBuildTarget(self):
+        """Test VmTest dies when build_target not set."""
+        input_proto = self._GetInput(build_target=None)
+        with self.assertRaises(cros_build_lib.DieSystemExit):
+            test_controller.VmTest(input_proto, None, self.api_config)
 
-  def testMissingVmImage(self):
-    """Test VmTest dies when vm_image not set."""
-    input_proto = self._GetInput(vm_path=None)
-    with self.assertRaises(cros_build_lib.DieSystemExit):
-      test_controller.VmTest(input_proto, None, self.api_config)
+    def testMissingVmImage(self):
+        """Test VmTest dies when vm_image not set."""
+        input_proto = self._GetInput(vm_path=None)
+        with self.assertRaises(cros_build_lib.DieSystemExit):
+            test_controller.VmTest(input_proto, None, self.api_config)
 
-  def testMissingTestHarness(self):
-    """Test VmTest dies when test_harness not specified."""
-    input_proto = self._GetInput(
-        test_harness=test_pb2.VmTestRequest.UNSPECIFIED)
-    with self.assertRaises(cros_build_lib.DieSystemExit):
-      test_controller.VmTest(input_proto, None, self.api_config)
+    def testMissingTestHarness(self):
+        """Test VmTest dies when test_harness not specified."""
+        input_proto = self._GetInput(
+            test_harness=test_pb2.VmTestRequest.UNSPECIFIED
+        )
+        with self.assertRaises(cros_build_lib.DieSystemExit):
+            test_controller.VmTest(input_proto, None, self.api_config)
 
-  def testMissingVmTests(self):
-    """Test VmTest dies when vm_tests not set."""
-    input_proto = self._GetInput(vm_tests=[])
-    with self.assertRaises(cros_build_lib.DieSystemExit):
-      test_controller.VmTest(input_proto, None, self.api_config)
+    def testMissingVmTests(self):
+        """Test VmTest dies when vm_tests not set."""
+        input_proto = self._GetInput(vm_tests=[])
+        with self.assertRaises(cros_build_lib.DieSystemExit):
+            test_controller.VmTest(input_proto, None, self.api_config)
 
-  def testVmTest(self):
-    """Call VmTest with valid args and temp dir."""
-    request = self._GetInput()
-    response = self._Output()
-    patch = self.PatchObject(
-        cros_build_lib,
-        'run',
-        return_value=cros_build_lib.CompletedProcess(returncode=0))
+    def testVmTest(self):
+        """Call VmTest with valid args and temp dir."""
+        request = self._GetInput()
+        response = self._Output()
+        patch = self.PatchObject(
+            cros_build_lib,
+            "run",
+            return_value=cros_build_lib.CompletedProcess(returncode=0),
+        )
 
-    test_controller.VmTest(request, response, self.api_config)
-    patch.assert_called()
+        test_controller.VmTest(request, response, self.api_config)
+        patch.assert_called()
 
 
 class GetArtifactsTest(cros_test_lib.MockTempDirTestCase):
-  """Test GetArtifacts."""
+    """Test GetArtifacts."""
 
-  CODE_COVERAGE_LLVM_ARTIFACT_TYPE = (
-      common_pb2.ArtifactsByService.Test.ArtifactType.CODE_COVERAGE_LLVM_JSON)
+    CODE_COVERAGE_LLVM_ARTIFACT_TYPE = (
+        common_pb2.ArtifactsByService.Test.ArtifactType.CODE_COVERAGE_LLVM_JSON
+    )
 
-  def setUp(self):
-    """Set up the class for tests."""
-    chroot_dir = os.path.join(self.tempdir, 'chroot')
-    osutils.SafeMakedirs(chroot_dir)
-    osutils.SafeMakedirs(os.path.join(chroot_dir, 'tmp'))
-    self.chroot = chroot_lib.Chroot(chroot_dir)
+    def setUp(self):
+        """Set up the class for tests."""
+        chroot_dir = os.path.join(self.tempdir, "chroot")
+        osutils.SafeMakedirs(chroot_dir)
+        osutils.SafeMakedirs(os.path.join(chroot_dir, "tmp"))
+        self.chroot = chroot_lib.Chroot(chroot_dir)
 
-    sysroot_path = os.path.join(chroot_dir, 'build', 'board')
-    osutils.SafeMakedirs(sysroot_path)
-    self.sysroot = sysroot_lib.Sysroot(sysroot_path)
+        sysroot_path = os.path.join(chroot_dir, "build", "board")
+        osutils.SafeMakedirs(sysroot_path)
+        self.sysroot = sysroot_lib.Sysroot(sysroot_path)
 
-    self.build_target = build_target_lib.BuildTarget('board')
+        self.build_target = build_target_lib.BuildTarget("board")
 
-  def testReturnsEmptyListWhenNoOutputArtifactsProvided(self):
-    """Test empty list is returned when there are no output_artifacts."""
-    result = test_controller.GetArtifacts(
-        common_pb2.ArtifactsByService.Test(output_artifacts=[]), self.chroot,
-        self.sysroot, self.build_target, self.tempdir)
+    def testReturnsEmptyListWhenNoOutputArtifactsProvided(self):
+        """Test empty list is returned when there are no output_artifacts."""
+        result = test_controller.GetArtifacts(
+            common_pb2.ArtifactsByService.Test(output_artifacts=[]),
+            self.chroot,
+            self.sysroot,
+            self.build_target,
+            self.tempdir,
+        )
 
-    self.assertEqual(len(result), 0)
+        self.assertEqual(len(result), 0)
 
-  def testShouldCallBundleCodeCoverageLlvmJsonForEachValidArtifact(self):
-    """Test BundleCodeCoverageLlvmJson is called on each valid artifact."""
-    BundleCodeCoverageLlvmJson_mock = (
+    def testShouldCallBundleCodeCoverageLlvmJsonForEachValidArtifact(self):
+        """Test BundleCodeCoverageLlvmJson is called on each valid artifact."""
+        BundleCodeCoverageLlvmJson_mock = self.PatchObject(
+            test_service, "BundleCodeCoverageLlvmJson", return_value="test"
+        )
+
+        test_controller.GetArtifacts(
+            common_pb2.ArtifactsByService.Test(
+                output_artifacts=[
+                    # Valid
+                    common_pb2.ArtifactsByService.Test.ArtifactInfo(
+                        artifact_types=[self.CODE_COVERAGE_LLVM_ARTIFACT_TYPE]
+                    ),
+                    # Invalid
+                    common_pb2.ArtifactsByService.Test.ArtifactInfo(
+                        artifact_types=[
+                            common_pb2.ArtifactsByService.Test.ArtifactType.UNIT_TESTS
+                        ]
+                    ),
+                ]
+            ),
+            self.chroot,
+            self.sysroot,
+            self.build_target,
+            self.tempdir,
+        )
+
+        BundleCodeCoverageLlvmJson_mock.assert_called_once()
+
+    def testShouldReturnValidResult(self):
+        """Test result contains paths and code_coverage_llvm_json type."""
         self.PatchObject(
-            test_service, 'BundleCodeCoverageLlvmJson', return_value='test'))
+            test_service, "BundleCodeCoverageLlvmJson", return_value="test"
+        )
 
-    test_controller.GetArtifacts(
-        common_pb2.ArtifactsByService.Test(output_artifacts=[
-            # Valid
-            common_pb2.ArtifactsByService.Test.ArtifactInfo(
-                artifact_types=[self.CODE_COVERAGE_LLVM_ARTIFACT_TYPE]),
+        result = test_controller.GetArtifacts(
+            common_pb2.ArtifactsByService.Test(
+                output_artifacts=[
+                    # Valid
+                    common_pb2.ArtifactsByService.Test.ArtifactInfo(
+                        artifact_types=[self.CODE_COVERAGE_LLVM_ARTIFACT_TYPE]
+                    ),
+                ]
+            ),
+            self.chroot,
+            self.sysroot,
+            self.build_target,
+            self.tempdir,
+        )
 
-            # Invalid
-            common_pb2.ArtifactsByService.Test.ArtifactInfo(artifact_types=[
-                common_pb2.ArtifactsByService.Test.ArtifactType.UNIT_TESTS
-            ]),
-        ]),
-        self.chroot,
-        self.sysroot,
-        self.build_target,
-        self.tempdir)
-
-    BundleCodeCoverageLlvmJson_mock.assert_called_once()
-
-  def testShouldReturnValidResult(self):
-    """Test result contains paths and code_coverage_llvm_json type."""
-    self.PatchObject(
-        test_service, 'BundleCodeCoverageLlvmJson', return_value='test')
-
-    result = test_controller.GetArtifacts(
-        common_pb2.ArtifactsByService.Test(output_artifacts=[
-            # Valid
-            common_pb2.ArtifactsByService.Test.ArtifactInfo(
-                artifact_types=[self.CODE_COVERAGE_LLVM_ARTIFACT_TYPE]),
-        ]),
-        self.chroot,
-        self.sysroot,
-        self.build_target,
-        self.tempdir)
-
-    self.assertEqual(result[0]['paths'], ['test'])
-    self.assertEqual(result[0]['type'], self.CODE_COVERAGE_LLVM_ARTIFACT_TYPE)
+        self.assertEqual(result[0]["paths"], ["test"])
+        self.assertEqual(
+            result[0]["type"], self.CODE_COVERAGE_LLVM_ARTIFACT_TYPE
+        )