diff --git a/Tools/Scripts/webkitpy/layout_tests/port/test.py b/Tools/Scripts/webkitpy/layout_tests/port/test.py
new file mode 100644
index 0000000..f7dd291
--- /dev/null
+++ b/Tools/Scripts/webkitpy/layout_tests/port/test.py
@@ -0,0 +1,598 @@
+#!/usr/bin/env python
+# Copyright (C) 2010 Google Inc. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the Google name nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import base64
+import sys
+import time
+
+from webkitpy.layout_tests.port import Port, Driver, DriverOutput
+from webkitpy.layout_tests.port.base import VirtualTestSuite
+from webkitpy.layout_tests.models.test_configuration import TestConfiguration
+from webkitpy.common.system.filesystem_mock import MockFileSystem
+from webkitpy.common.system.crashlogs import CrashLogs
+
+
+# This sets basic expectations for a test. Each individual expectation
+# can be overridden by a keyword argument in TestList.add().
+class TestInstance(object):
+    def __init__(self, name):
+        self.name = name
+        self.base = name[(name.rfind("/") + 1):name.rfind(".")]
+        self.crash = False
+        self.web_process_crash = False
+        self.exception = False
+        self.hang = False
+        self.keyboard = False
+        self.error = ''
+        self.timeout = False
+        self.is_reftest = False
+
+        # The values of each field are treated as raw byte strings. They
+        # will be converted to unicode strings where appropriate using
+        # FileSystem.read_text_file().
+        self.actual_text = self.base + '-txt'
+        self.actual_checksum = self.base + '-checksum'
+
+        # We add the '\x8a' for the image file to prevent the value from
+        # being treated as UTF-8 (the character is invalid)
+        self.actual_image = self.base + '\x8a' + '-png' + 'tEXtchecksum\x00' + self.actual_checksum
+
+        self.expected_text = self.actual_text
+        self.expected_image = self.actual_image
+
+        self.actual_audio = None
+        self.expected_audio = None
+
+
+# This is an in-memory list of tests, what we want them to produce, and
+# what we want to claim are the expected results.
+class TestList(object):
+    def __init__(self):
+        self.tests = {}
+
+    def add(self, name, **kwargs):
+        test = TestInstance(name)
+        for key, value in kwargs.items():
+            test.__dict__[key] = value
+        self.tests[name] = test
+
+    def add_reftest(self, name, reference_name, same_image):
+        self.add(name, actual_checksum='xxx', actual_image='XXX', is_reftest=True)
+        if same_image:
+            self.add(reference_name, actual_checksum='xxx', actual_image='XXX', is_reftest=True)
+        else:
+            self.add(reference_name, actual_checksum='yyy', actual_image='YYY', is_reftest=True)
+
+    def keys(self):
+        return self.tests.keys()
+
+    def __contains__(self, item):
+        return item in self.tests
+
+    def __getitem__(self, item):
+        return self.tests[item]
+
+
+def unit_test_list():
+    tests = TestList()
+    tests.add('failures/expected/crash.html', crash=True)
+    tests.add('failures/expected/exception.html', exception=True)
+    tests.add('failures/expected/timeout.html', timeout=True)
+    tests.add('failures/expected/hang.html', hang=True)
+    tests.add('failures/expected/missing_text.html', expected_text=None)
+    tests.add('failures/expected/image.html',
+              actual_image='image_fail-pngtEXtchecksum\x00checksum_fail',
+              expected_image='image-pngtEXtchecksum\x00checksum-png')
+    tests.add('failures/expected/image_checksum.html',
+              actual_checksum='image_checksum_fail-checksum',
+              actual_image='image_checksum_fail-png')
+    tests.add('failures/expected/audio.html',
+              actual_audio=base64.b64encode('audio_fail-wav'), expected_audio='audio-wav',
+              actual_text=None, expected_text=None,
+              actual_image=None, expected_image=None,
+              actual_checksum=None)
+    tests.add('failures/expected/keyboard.html', keyboard=True)
+    tests.add('failures/expected/missing_check.html',
+              expected_image='missing_check-png')
+    tests.add('failures/expected/missing_image.html', expected_image=None)
+    tests.add('failures/expected/missing_audio.html', expected_audio=None,
+              actual_text=None, expected_text=None,
+              actual_image=None, expected_image=None,
+              actual_checksum=None)
+    tests.add('failures/expected/missing_text.html', expected_text=None)
+    tests.add('failures/expected/newlines_leading.html',
+              expected_text="\nfoo\n", actual_text="foo\n")
+    tests.add('failures/expected/newlines_trailing.html',
+              expected_text="foo\n\n", actual_text="foo\n")
+    tests.add('failures/expected/newlines_with_excess_CR.html',
+              expected_text="foo\r\r\r\n", actual_text="foo\n")
+    tests.add('failures/expected/text.html', actual_text='text_fail-png')
+    tests.add('failures/expected/skip_text.html', actual_text='text diff')
+    tests.add('failures/flaky/text.html')
+    tests.add('failures/unexpected/missing_text.html', expected_text=None)
+    tests.add('failures/unexpected/missing_check.html', expected_image='missing-check-png')
+    tests.add('failures/unexpected/missing_image.html', expected_image=None)
+    tests.add('failures/unexpected/missing_render_tree_dump.html', actual_text="""layer at (0,0) size 800x600
+  RenderView at (0,0) size 800x600
+layer at (0,0) size 800x34
+  RenderBlock {HTML} at (0,0) size 800x34
+    RenderBody {BODY} at (8,8) size 784x18
+      RenderText {#text} at (0,0) size 133x18
+        text run at (0,0) width 133: "This is an image test!"
+""", expected_text=None)
+    tests.add('failures/unexpected/crash.html', crash=True)
+    tests.add('failures/unexpected/crash-with-stderr.html', crash=True,
+              error="mock-std-error-output")
+    tests.add('failures/unexpected/web-process-crash-with-stderr.html', web_process_crash=True,
+              error="mock-std-error-output")
+    tests.add('failures/unexpected/pass.html')
+    tests.add('failures/unexpected/text-checksum.html',
+              actual_text='text-checksum_fail-txt',
+              actual_checksum='text-checksum_fail-checksum')
+    tests.add('failures/unexpected/text-image-checksum.html',
+              actual_text='text-image-checksum_fail-txt',
+              actual_image='text-image-checksum_fail-pngtEXtchecksum\x00checksum_fail',
+              actual_checksum='text-image-checksum_fail-checksum')
+    tests.add('failures/unexpected/checksum-with-matching-image.html',
+              actual_checksum='text-image-checksum_fail-checksum')
+    tests.add('failures/unexpected/skip_pass.html')
+    tests.add('failures/unexpected/text.html', actual_text='text_fail-txt')
+    tests.add('failures/unexpected/timeout.html', timeout=True)
+    tests.add('http/tests/passes/text.html')
+    tests.add('http/tests/passes/image.html')
+    tests.add('http/tests/ssl/text.html')
+    tests.add('passes/args.html')
+    tests.add('passes/error.html', error='stuff going to stderr')
+    tests.add('passes/image.html')
+    tests.add('passes/audio.html',
+              actual_audio=base64.b64encode('audio-wav'), expected_audio='audio-wav',
+              actual_text=None, expected_text=None,
+              actual_image=None, expected_image=None,
+              actual_checksum=None)
+    tests.add('passes/platform_image.html')
+    tests.add('passes/checksum_in_image.html',
+              expected_image='tEXtchecksum\x00checksum_in_image-checksum')
+    tests.add('passes/skipped/skip.html')
+
+    # Note that here the checksums don't match but the images do, so this test passes "unexpectedly".
+    # See https://bugs.webkit.org/show_bug.cgi?id=69444 .
+    tests.add('failures/unexpected/checksum.html', actual_checksum='checksum_fail-checksum')
+
+    # Text output files contain "\r\n" on Windows.  This may be
+    # helpfully filtered to "\r\r\n" by our Python/Cygwin tooling.
+    tests.add('passes/text.html',
+              expected_text='\nfoo\n\n', actual_text='\nfoo\r\n\r\r\n')
+
+    # For reftests.
+    tests.add_reftest('passes/reftest.html', 'passes/reftest-expected.html', same_image=True)
+    tests.add_reftest('passes/mismatch.html', 'passes/mismatch-expected-mismatch.html', same_image=False)
+    tests.add_reftest('passes/svgreftest.svg', 'passes/svgreftest-expected.svg', same_image=True)
+    tests.add_reftest('passes/xhtreftest.xht', 'passes/xhtreftest-expected.html', same_image=True)
+    tests.add_reftest('passes/phpreftest.php', 'passes/phpreftest-expected-mismatch.svg', same_image=False)
+    tests.add_reftest('failures/expected/reftest.html', 'failures/expected/reftest-expected.html', same_image=False)
+    tests.add_reftest('failures/expected/mismatch.html', 'failures/expected/mismatch-expected-mismatch.html', same_image=True)
+    tests.add_reftest('failures/unexpected/reftest.html', 'failures/unexpected/reftest-expected.html', same_image=False)
+    tests.add_reftest('failures/unexpected/mismatch.html', 'failures/unexpected/mismatch-expected-mismatch.html', same_image=True)
+    tests.add('failures/unexpected/reftest-nopixel.html', actual_checksum=None, actual_image=None, is_reftest=True)
+    tests.add('failures/unexpected/reftest-nopixel-expected.html', actual_checksum=None, actual_image=None, is_reftest=True)
+    # FIXME: Add a reftest which crashes.
+    tests.add('reftests/foo/test.html')
+    tests.add('reftests/foo/test-ref.html')
+
+    tests.add('reftests/foo/multiple-match-success.html', actual_checksum='abc', actual_image='abc')
+    tests.add('reftests/foo/multiple-match-failure.html', actual_checksum='abc', actual_image='abc')
+    tests.add('reftests/foo/multiple-mismatch-success.html', actual_checksum='abc', actual_image='abc')
+    tests.add('reftests/foo/multiple-mismatch-failure.html', actual_checksum='abc', actual_image='abc')
+    tests.add('reftests/foo/multiple-both-success.html', actual_checksum='abc', actual_image='abc')
+    tests.add('reftests/foo/multiple-both-failure.html', actual_checksum='abc', actual_image='abc')
+
+    tests.add('reftests/foo/matching-ref.html', actual_checksum='abc', actual_image='abc')
+    tests.add('reftests/foo/mismatching-ref.html', actual_checksum='def', actual_image='def')
+    tests.add('reftests/foo/second-mismatching-ref.html', actual_checksum='ghi', actual_image='ghi')
+
+    # The following files shouldn't be treated as reftests
+    tests.add_reftest('reftests/foo/unlistedtest.html', 'reftests/foo/unlistedtest-expected.html', same_image=True)
+    tests.add('reftests/foo/reference/bar/common.html')
+    tests.add('reftests/foo/reftest/bar/shared.html')
+
+    tests.add('websocket/tests/passes/text.html')
+
+    # For testing test are properly included from platform directories.
+    tests.add('platform/test-mac-leopard/http/test.html')
+    tests.add('platform/test-win-win7/http/test.html')
+
+    # For --no-http tests, test that platform specific HTTP tests are properly skipped.
+    tests.add('platform/test-snow-leopard/http/test.html')
+    tests.add('platform/test-snow-leopard/websocket/test.html')
+
+    # For testing if perf tests are running in a locked shard.
+    tests.add('perf/foo/test.html')
+    tests.add('perf/foo/test-ref.html')
+
+    # For testing --pixel-test-directories.
+    tests.add('failures/unexpected/pixeldir/image_in_pixeldir.html',
+        actual_image='image_in_pixeldir-pngtEXtchecksum\x00checksum_fail',
+        expected_image='image_in_pixeldir-pngtEXtchecksum\x00checksum-png')
+    tests.add('failures/unexpected/image_not_in_pixeldir.html',
+        actual_image='image_not_in_pixeldir-pngtEXtchecksum\x00checksum_fail',
+        expected_image='image_not_in_pixeldir-pngtEXtchecksum\x00checksum-png')
+
+    # For testing that virtual test suites don't expand names containing themselves
+    # See webkit.org/b/97925 and base_unittest.PortTest.test_tests().
+    tests.add('passes/test-virtual-passes.html')
+    tests.add('passes/passes/test-virtual-passes.html')
+
+    return tests
+
+
+# Here we use a non-standard location for the layout tests, to ensure that
+# this works. The path contains a '.' in the name because we've seen bugs
+# related to this before.
+
+LAYOUT_TEST_DIR = '/test.checkout/LayoutTests'
+PERF_TEST_DIR = '/test.checkout/PerformanceTests'
+
+
+# Here we synthesize an in-memory filesystem from the test list
+# in order to fully control the test output and to demonstrate that
+# we don't need a real filesystem to run the tests.
+def add_unit_tests_to_mock_filesystem(filesystem):
+    # Add the test_expectations file.
+    filesystem.maybe_make_directory(LAYOUT_TEST_DIR + '/platform/test')
+    if not filesystem.exists(LAYOUT_TEST_DIR + '/platform/test/TestExpectations'):
+        filesystem.write_text_file(LAYOUT_TEST_DIR + '/platform/test/TestExpectations', """
+Bug(test) failures/expected/crash.html [ Crash ]
+Bug(test) failures/expected/image.html [ ImageOnlyFailure ]
+Bug(test) failures/expected/audio.html [ Failure ]
+Bug(test) failures/expected/image_checksum.html [ ImageOnlyFailure ]
+Bug(test) failures/expected/mismatch.html [ ImageOnlyFailure ]
+Bug(test) failures/expected/missing_check.html [ Missing Pass ]
+Bug(test) failures/expected/missing_image.html [ Missing Pass ]
+Bug(test) failures/expected/missing_audio.html [ Missing Pass ]
+Bug(test) failures/expected/missing_text.html [ Missing Pass ]
+Bug(test) failures/expected/newlines_leading.html [ Failure ]
+Bug(test) failures/expected/newlines_trailing.html [ Failure ]
+Bug(test) failures/expected/newlines_with_excess_CR.html [ Failure ]
+Bug(test) failures/expected/reftest.html [ ImageOnlyFailure ]
+Bug(test) failures/expected/text.html [ Failure ]
+Bug(test) failures/expected/timeout.html [ Timeout ]
+Bug(test) failures/expected/hang.html [ WontFix ]
+Bug(test) failures/expected/keyboard.html [ WontFix ]
+Bug(test) failures/expected/exception.html [ WontFix ]
+Bug(test) failures/unexpected/pass.html [ Failure ]
+Bug(test) passes/skipped/skip.html [ Skip ]
+""")
+
+    filesystem.maybe_make_directory(LAYOUT_TEST_DIR + '/reftests/foo')
+    filesystem.write_text_file(LAYOUT_TEST_DIR + '/reftests/foo/reftest.list', """
+== test.html test-ref.html
+
+== multiple-match-success.html mismatching-ref.html
+== multiple-match-success.html matching-ref.html
+== multiple-match-failure.html mismatching-ref.html
+== multiple-match-failure.html second-mismatching-ref.html
+!= multiple-mismatch-success.html mismatching-ref.html
+!= multiple-mismatch-success.html second-mismatching-ref.html
+!= multiple-mismatch-failure.html mismatching-ref.html
+!= multiple-mismatch-failure.html matching-ref.html
+== multiple-both-success.html matching-ref.html
+== multiple-both-success.html mismatching-ref.html
+!= multiple-both-success.html second-mismatching-ref.html
+== multiple-both-failure.html matching-ref.html
+!= multiple-both-failure.html second-mismatching-ref.html
+!= multiple-both-failure.html matching-ref.html
+""")
+
+    # FIXME: This test was only being ignored because of missing a leading '/'.
+    # Fixing the typo causes several tests to assert, so disabling the test entirely.
+    # Add in a file should be ignored by port.find_test_files().
+    #files[LAYOUT_TEST_DIR + '/userscripts/resources/iframe.html'] = 'iframe'
+
+    def add_file(test, suffix, contents):
+        dirname = filesystem.join(LAYOUT_TEST_DIR, test.name[0:test.name.rfind('/')])
+        base = test.base
+        filesystem.maybe_make_directory(dirname)
+        filesystem.write_binary_file(filesystem.join(dirname, base + suffix), contents)
+
+    # Add each test and the expected output, if any.
+    test_list = unit_test_list()
+    for test in test_list.tests.values():
+        add_file(test, test.name[test.name.rfind('.'):], '')
+        if test.is_reftest:
+            continue
+        if test.actual_audio:
+            add_file(test, '-expected.wav', test.expected_audio)
+            continue
+        add_file(test, '-expected.txt', test.expected_text)
+        add_file(test, '-expected.png', test.expected_image)
+
+    filesystem.write_text_file(filesystem.join(LAYOUT_TEST_DIR, 'virtual', 'passes', 'args-expected.txt'), 'args-txt --virtual-arg')
+    # Clear the list of written files so that we can watch what happens during testing.
+    filesystem.clear_written_files()
+
+
+class TestPort(Port):
+    port_name = 'test'
+
+    """Test implementation of the Port interface."""
+    ALL_BASELINE_VARIANTS = (
+        'test-linux-x86_64',
+        'test-mac-snowleopard', 'test-mac-leopard',
+        'test-win-vista', 'test-win-win7', 'test-win-xp',
+    )
+
+    @classmethod
+    def determine_full_port_name(cls, host, options, port_name):
+        if port_name == 'test':
+            return 'test-mac-leopard'
+        return port_name
+
+    def __init__(self, host, port_name=None, **kwargs):
+        # FIXME: Consider updating all of the callers to pass in a port_name so it can be a
+        # required parameter like all of the other Port objects.
+        port_name = port_name or 'test-mac-leopard'
+        Port.__init__(self, host, port_name, **kwargs)
+        self._tests = unit_test_list()
+        self._flakes = set()
+        self._expectations_path = LAYOUT_TEST_DIR + '/platform/test/TestExpectations'
+        self._results_directory = None
+
+        self._operating_system = 'mac'
+        if port_name.startswith('test-win'):
+            self._operating_system = 'win'
+        elif port_name.startswith('test-linux'):
+            self._operating_system = 'linux'
+
+        version_map = {
+            'test-win-xp': 'xp',
+            'test-win-win7': 'win7',
+            'test-win-vista': 'vista',
+            'test-mac-leopard': 'leopard',
+            'test-mac-snowleopard': 'snowleopard',
+            'test-linux-x86_64': 'lucid',
+        }
+        self._version = version_map[port_name]
+
+    def default_pixel_tests(self):
+        return True
+
+    def _path_to_driver(self):
+        # This routine shouldn't normally be called, but it is called by
+        # the mock_drt Driver. We return something, but make sure it's useless.
+        return 'MOCK _path_to_driver'
+
+    def baseline_search_path(self):
+        search_paths = {
+            'test-mac-snowleopard': ['test-mac-snowleopard'],
+            'test-mac-leopard': ['test-mac-leopard', 'test-mac-snowleopard'],
+            'test-win-win7': ['test-win-win7'],
+            'test-win-vista': ['test-win-vista', 'test-win-win7'],
+            'test-win-xp': ['test-win-xp', 'test-win-vista', 'test-win-win7'],
+            'test-linux-x86_64': ['test-linux', 'test-win-win7'],
+        }
+        return [self._webkit_baseline_path(d) for d in search_paths[self.name()]]
+
+    def default_child_processes(self):
+        return 1
+
+    def worker_startup_delay_secs(self):
+        return 0
+
+    def check_build(self, needs_http):
+        return True
+
+    def check_sys_deps(self, needs_http):
+        return True
+
+    def default_configuration(self):
+        return 'Release'
+
+    def diff_image(self, expected_contents, actual_contents, tolerance=None):
+        diffed = actual_contents != expected_contents
+        if not actual_contents and not expected_contents:
+            return (None, 0, None)
+        if not actual_contents or not expected_contents:
+            return (True, 0, None)
+        if 'ref' in expected_contents:
+            assert tolerance == 0
+        if diffed:
+            return ("< %s\n---\n> %s\n" % (expected_contents, actual_contents), 1, None)
+        return (None, 0, None)
+
+    def layout_tests_dir(self):
+        return LAYOUT_TEST_DIR
+
+    def perf_tests_dir(self):
+        return PERF_TEST_DIR
+
+    def webkit_base(self):
+        return '/test.checkout'
+
+    def skipped_layout_tests(self, test_list):
+        # This allows us to test the handling Skipped files, both with a test
+        # that actually passes, and a test that does fail.
+        return set(['failures/expected/skip_text.html',
+                    'failures/unexpected/skip_pass.html',
+                    'virtual/skipped'])
+
+    def name(self):
+        return self._name
+
+    def operating_system(self):
+        return self._operating_system
+
+    def _path_to_wdiff(self):
+        return None
+
+    def default_results_directory(self):
+        return '/tmp/layout-test-results'
+
+    def setup_test_run(self):
+        pass
+
+    def _driver_class(self):
+        return TestDriver
+
+    def start_http_server(self, additional_dirs=None, number_of_servers=None):
+        pass
+
+    def start_websocket_server(self):
+        pass
+
+    def acquire_http_lock(self):
+        pass
+
+    def stop_http_server(self):
+        pass
+
+    def stop_websocket_server(self):
+        pass
+
+    def release_http_lock(self):
+        pass
+
+    def _path_to_lighttpd(self):
+        return "/usr/sbin/lighttpd"
+
+    def _path_to_lighttpd_modules(self):
+        return "/usr/lib/lighttpd"
+
+    def _path_to_lighttpd_php(self):
+        return "/usr/bin/php-cgi"
+
+    def _path_to_apache(self):
+        return "/usr/sbin/httpd"
+
+    def _path_to_apache_config_file(self):
+        return self._filesystem.join(self.layout_tests_dir(), 'http', 'conf', 'httpd.conf')
+
+    def path_to_test_expectations_file(self):
+        return self._expectations_path
+
+    def all_test_configurations(self):
+        """Returns a sequence of the TestConfigurations the port supports."""
+        # By default, we assume we want to test every graphics type in
+        # every configuration on every system.
+        test_configurations = []
+        for version, architecture in self._all_systems():
+            for build_type in self._all_build_types():
+                test_configurations.append(TestConfiguration(
+                    version=version,
+                    architecture=architecture,
+                    build_type=build_type))
+        return test_configurations
+
+    def _all_systems(self):
+        return (('leopard', 'x86'),
+                ('snowleopard', 'x86'),
+                ('xp', 'x86'),
+                ('vista', 'x86'),
+                ('win7', 'x86'),
+                ('lucid', 'x86'),
+                ('lucid', 'x86_64'))
+
+    def _all_build_types(self):
+        return ('debug', 'release')
+
+    def configuration_specifier_macros(self):
+        """To avoid surprises when introducing new macros, these are intentionally fixed in time."""
+        return {'mac': ['leopard', 'snowleopard'], 'win': ['xp', 'vista', 'win7'], 'linux': ['lucid']}
+
+    def all_baseline_variants(self):
+        return self.ALL_BASELINE_VARIANTS
+
+    def virtual_test_suites(self):
+        return [
+            VirtualTestSuite('virtual/passes', 'passes', ['--virtual-arg']),
+            VirtualTestSuite('virtual/skipped', 'failures/expected', ['--virtual-arg2']),
+        ]
+
+
+class TestDriver(Driver):
+    """Test/Dummy implementation of the DumpRenderTree interface."""
+
+    def cmd_line(self, pixel_tests, per_test_args):
+        pixel_tests_flag = '-p' if pixel_tests else ''
+        return [self._port._path_to_driver()] + [pixel_tests_flag] + self._port.get_option('additional_drt_flag', []) + per_test_args
+
+    def run_test(self, test_input, stop_when_done):
+        start_time = time.time()
+        test_name = test_input.test_name
+        test_args = test_input.args or []
+        test = self._port._tests[test_name]
+        if test.keyboard:
+            raise KeyboardInterrupt
+        if test.exception:
+            raise ValueError('exception from ' + test_name)
+        if test.hang:
+            time.sleep((float(test_input.timeout) * 4) / 1000.0 + 1.0)  # The 1.0 comes from thread_padding_sec in layout_test_runnery.
+
+        audio = None
+        actual_text = test.actual_text
+
+        if 'flaky' in test_name and not test_name in self._port._flakes:
+            self._port._flakes.add(test_name)
+            actual_text = 'flaky text failure'
+
+        if actual_text and test_args and test_name == 'passes/args.html':
+            actual_text = actual_text + ' ' + ' '.join(test_args)
+
+        if test.actual_audio:
+            audio = base64.b64decode(test.actual_audio)
+        crashed_process_name = None
+        crashed_pid = None
+        if test.crash:
+            crashed_process_name = self._port.driver_name()
+            crashed_pid = 1
+        elif test.web_process_crash:
+            crashed_process_name = 'WebProcess'
+            crashed_pid = 2
+
+        crash_log = ''
+        if crashed_process_name:
+            crash_logs = CrashLogs(self._port.host)
+            crash_log = crash_logs.find_newest_log(crashed_process_name, None) or ''
+
+        if stop_when_done:
+            self.stop()
+
+        if test.actual_checksum == test_input.image_hash:
+            image = None
+        else:
+            image = test.actual_image
+        return DriverOutput(actual_text, image, test.actual_checksum, audio,
+            crash=test.crash or test.web_process_crash, crashed_process_name=crashed_process_name,
+            crashed_pid=crashed_pid, crash_log=crash_log,
+            test_time=time.time() - start_time, timeout=test.timeout, error=test.error)
+
+    def start(self, pixel_tests, per_test_args):
+        pass
+
+    def stop(self):
+        pass