[SCM] WebKit Debian packaging branch, debian/experimental, updated. upstream/1.3.3-9427-gc2be6fc

dpranke at chromium.org dpranke at chromium.org
Wed Dec 22 12:55:50 UTC 2010


The following commit has been merged in the debian/experimental branch:
commit 7e68734e6e2d80db49c1a0e694ee56c89f0da2e0
Author: dpranke at chromium.org <dpranke at chromium.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc>
Date:   Thu Sep 2 04:47:42 2010 +0000

    2010-09-01  Dirk Pranke  <dpranke at chromium.org>
    
            Reviewed by Tony Chang.
    
            Land a patched version of r66542 - change TestRunner to have an
            separate cleanup method and fix the ordering of cleanup between
            TestRunner and the printing module, and then wrap everything in a
            try/finally block to ensure reliable cleanup without needing to
            rely on stuff happening in the destructor of the TestRunner.
    
            Also refactor run_webkit_tests.run() to be much smaller and cleaner
            by creating a bunch of helper methods and moving more stuff into
            the TestRunner class.
    
            This fixes the crash at the end of the linux test run of
            new-run-webkit-tests (and undoes the rollout in 66547).
    
            https://bugs.webkit.org/show_bug.cgi?id=44902
    
            * Scripts/webkitpy/layout_tests/data/failures/expected/exception.html: Added.
            * Scripts/webkitpy/layout_tests/data/failures/expected/keyboard.html: Added.
            * Scripts/webkitpy/layout_tests/data/passes/error-expected.txt: Added.
            * Scripts/webkitpy/layout_tests/data/passes/error.html: Added.
            * Scripts/webkitpy/layout_tests/data/platform/test/test_expectations.txt:
            * Scripts/webkitpy/layout_tests/layout_package/dump_render_tree_thread.py:
            * Scripts/webkitpy/layout_tests/layout_package/printing.py:
            * Scripts/webkitpy/layout_tests/layout_package/printing_unittest.py:
            * Scripts/webkitpy/layout_tests/port/base.py:
            * Scripts/webkitpy/layout_tests/port/test.py:
            * Scripts/webkitpy/layout_tests/run_webkit_tests.py:
            * Scripts/webkitpy/layout_tests/run_webkit_tests_unittest.py:
    
    git-svn-id: http://svn.webkit.org/repository/webkit/trunk@66640 268f45cc-cd09-0410-ab3c-d52691b4dbfc

diff --git a/WebKitTools/ChangeLog b/WebKitTools/ChangeLog
index 4fefdef..e465ca2 100644
--- a/WebKitTools/ChangeLog
+++ b/WebKitTools/ChangeLog
@@ -1,3 +1,35 @@
+2010-09-01  Dirk Pranke  <dpranke at chromium.org>
+
+        Reviewed by Tony Chang.
+
+        Land a patched version of r66542 - change TestRunner to have an
+        separate cleanup method and fix the ordering of cleanup between
+        TestRunner and the printing module, and then wrap everything in a
+        try/finally block to ensure reliable cleanup without needing to
+        rely on stuff happening in the destructor of the TestRunner.
+
+        Also refactor run_webkit_tests.run() to be much smaller and cleaner
+        by creating a bunch of helper methods and moving more stuff into
+        the TestRunner class.
+
+        This fixes the crash at the end of the linux test run of
+        new-run-webkit-tests (and undoes the rollout in 66547).
+
+        https://bugs.webkit.org/show_bug.cgi?id=44902
+
+        * Scripts/webkitpy/layout_tests/data/failures/expected/exception.html: Added.
+        * Scripts/webkitpy/layout_tests/data/failures/expected/keyboard.html: Added.
+        * Scripts/webkitpy/layout_tests/data/passes/error-expected.txt: Added.
+        * Scripts/webkitpy/layout_tests/data/passes/error.html: Added.
+        * Scripts/webkitpy/layout_tests/data/platform/test/test_expectations.txt:
+        * Scripts/webkitpy/layout_tests/layout_package/dump_render_tree_thread.py:
+        * Scripts/webkitpy/layout_tests/layout_package/printing.py:
+        * Scripts/webkitpy/layout_tests/layout_package/printing_unittest.py:
+        * Scripts/webkitpy/layout_tests/port/base.py:
+        * Scripts/webkitpy/layout_tests/port/test.py:
+        * Scripts/webkitpy/layout_tests/run_webkit_tests.py:
+        * Scripts/webkitpy/layout_tests/run_webkit_tests_unittest.py:
+
 2010-09-01  Mark Rowe  <mrowe at apple.com>
 
         Reviewed by Adam Roben.
diff --git a/WebKitTools/Scripts/webkitpy/layout_tests/data/failures/expected/exception.html b/WebKitTools/Scripts/webkitpy/layout_tests/data/failures/expected/exception.html
new file mode 100644
index 0000000..38c54e3
--- /dev/null
+++ b/WebKitTools/Scripts/webkitpy/layout_tests/data/failures/expected/exception.html
@@ -0,0 +1 @@
+exception
diff --git a/WebKitTools/Scripts/webkitpy/layout_tests/data/failures/expected/keyboard.html b/WebKitTools/Scripts/webkitpy/layout_tests/data/failures/expected/keyboard.html
new file mode 100644
index 0000000..c253983
--- /dev/null
+++ b/WebKitTools/Scripts/webkitpy/layout_tests/data/failures/expected/keyboard.html
@@ -0,0 +1 @@
+keyboard
diff --git a/WebKitTools/Scripts/webkitpy/layout_tests/data/passes/error-expected.txt b/WebKitTools/Scripts/webkitpy/layout_tests/data/passes/error-expected.txt
new file mode 100644
index 0000000..9427269
--- /dev/null
+++ b/WebKitTools/Scripts/webkitpy/layout_tests/data/passes/error-expected.txt
@@ -0,0 +1 @@
+error-txt
diff --git a/WebKitTools/Scripts/webkitpy/layout_tests/data/passes/error.html b/WebKitTools/Scripts/webkitpy/layout_tests/data/passes/error.html
new file mode 100644
index 0000000..8276753
--- /dev/null
+++ b/WebKitTools/Scripts/webkitpy/layout_tests/data/passes/error.html
@@ -0,0 +1 @@
+error
diff --git a/WebKitTools/Scripts/webkitpy/layout_tests/data/platform/test/test_expectations.txt b/WebKitTools/Scripts/webkitpy/layout_tests/data/platform/test/test_expectations.txt
index 6e66caa..16556e3 100644
--- a/WebKitTools/Scripts/webkitpy/layout_tests/data/platform/test/test_expectations.txt
+++ b/WebKitTools/Scripts/webkitpy/layout_tests/data/platform/test/test_expectations.txt
@@ -8,3 +8,5 @@ WONTFIX : failures/expected/missing_image.html = MISSING PASS
 WONTFIX : failures/expected/missing_text.html = MISSING PASS
 WONTFIX : failures/expected/text.html = TEXT
 WONTFIX : failures/expected/timeout.html = TIMEOUT
+WONTFIX SKIP : failures/expected/keyboard.html = CRASH
+WONTFIX SKIP : failures/expected/exception.html = CRASH
diff --git a/WebKitTools/Scripts/webkitpy/layout_tests/layout_package/dump_render_tree_thread.py b/WebKitTools/Scripts/webkitpy/layout_tests/layout_package/dump_render_tree_thread.py
index 6343400..ec33086 100644
--- a/WebKitTools/Scripts/webkitpy/layout_tests/layout_package/dump_render_tree_thread.py
+++ b/WebKitTools/Scripts/webkitpy/layout_tests/layout_package/dump_render_tree_thread.py
@@ -169,6 +169,11 @@ class SingleTestThread(threading.Thread):
         self._output_dir = output_dir
 
     def run(self):
+        self._covered_run()
+
+    def _covered_run(self):
+        # FIXME: this is a separate routine to work around a bug
+        # in coverage: see http://bitbucket.org/ned/coveragepy/issue/85.
         test_info = self._test_info
         driver = self._port.create_driver(self._image_path, self._shell_args)
         driver.start()
@@ -287,6 +292,11 @@ class TestShellThread(WatchableThread):
     def run(self):
         """Delegate main work to a helper method and watch for uncaught
         exceptions."""
+        self._covered_run()
+
+    def _covered_run(self):
+        # FIXME: this is a separate routine to work around a bug
+        # in coverage: see http://bitbucket.org/ned/coveragepy/issue/85.
         self._thread_id = thread.get_ident()
         self._start_time = time.time()
         self._num_tests = 0
@@ -303,9 +313,9 @@ class TestShellThread(WatchableThread):
             self._exception_info = sys.exc_info()
             self._stop_time = time.time()
             # Re-raise it and die.
-            _log.error('%s dying: %s' % (self.getName(),
+            _log.error('%s dying, exception raised: %s' % (self.getName(),
                        self._exception_info))
-            raise
+
         self._stop_time = time.time()
 
     def run_in_main_thread(self, test_runner, result_summary):
@@ -321,14 +331,8 @@ class TestShellThread(WatchableThread):
 
         If test_runner is not None, then we call test_runner.UpdateSummary()
         with the results of each test."""
-        batch_size = 0
+        batch_size = self._options.batch_size
         batch_count = 0
-        if self._options.batch_size:
-            try:
-                batch_size = int(self._options.batch_size)
-            except:
-                _log.info("Ignoring invalid batch size '%s'" %
-                          self._options.batch_size)
 
         # Append tests we're running to the existing tests_run.txt file.
         # This is created in run_webkit_tests.py:_PrepareListsAndPrintOutput.
diff --git a/WebKitTools/Scripts/webkitpy/layout_tests/layout_package/metered_stream_unittest.py b/WebKitTools/Scripts/webkitpy/layout_tests/layout_package/metered_stream_unittest.py
index a9c6d5b..9421ff8 100644
--- a/WebKitTools/Scripts/webkitpy/layout_tests/layout_package/metered_stream_unittest.py
+++ b/WebKitTools/Scripts/webkitpy/layout_tests/layout_package/metered_stream_unittest.py
@@ -34,7 +34,6 @@ import optparse
 import pdb
 import sys
 import unittest
-import logging
 
 from webkitpy.common.array_stream import ArrayStream
 from webkitpy.layout_tests.layout_package import metered_stream
@@ -97,13 +96,19 @@ class TestMeteredStream(unittest.TestCase):
         m.write("foo")
         self.assertEquals(a.get(), ['foo'])
 
+        import logging
+        b = ArrayStream()
+        logger = logging.getLogger()
+        handler = logging.StreamHandler(b)
+        logger.addHandler(handler)
         m.update("bar")
-        # FIXME: figure out how to test that this went to the logger. Is this
-        # good enough?
+        logger.handlers.remove(handler)
         self.assertEquals(a.get(), ['foo'])
+        self.assertEquals(b.get(), ['bar\n'])
 
         m.progress("dropped")
         self.assertEquals(a.get(), ['foo'])
+        self.assertEquals(b.get(), ['bar\n'])
 
 
 if __name__ == '__main__':
diff --git a/WebKitTools/Scripts/webkitpy/layout_tests/layout_package/printing.py b/WebKitTools/Scripts/webkitpy/layout_tests/layout_package/printing.py
index a9e015f..d420631 100644
--- a/WebKitTools/Scripts/webkitpy/layout_tests/layout_package/printing.py
+++ b/WebKitTools/Scripts/webkitpy/layout_tests/layout_package/printing.py
@@ -126,19 +126,6 @@ def print_options():
     ]
 
 
-def configure_logging(options, meter):
-    """Configures the logging system."""
-    log_fmt = '%(message)s'
-    log_datefmt = '%y%m%d %H:%M:%S'
-    log_level = logging.INFO
-    if options.verbose:
-        log_fmt = ('%(asctime)s %(filename)s:%(lineno)-4d %(levelname)s '
-                   '%(message)s')
-        log_level = logging.DEBUG
-
-    logging.basicConfig(level=log_level, format=log_fmt,
-                        datefmt=log_datefmt, stream=meter)
-
 
 def parse_print_options(print_options, verbose, child_processes,
                         is_fully_parallel):
@@ -190,6 +177,28 @@ def parse_print_options(print_options, verbose, child_processes,
     return switches
 
 
+def _configure_logging(stream, verbose):
+    log_fmt = '%(message)s'
+    log_datefmt = '%y%m%d %H:%M:%S'
+    log_level = logging.INFO
+    if verbose:
+        log_fmt = ('%(asctime)s %(filename)s:%(lineno)-4d %(levelname)s '
+                '%(message)s')
+        log_level = logging.DEBUG
+
+    root = logging.getLogger()
+    handler = logging.StreamHandler(stream)
+    handler.setFormatter(logging.Formatter(log_fmt, None))
+    root.addHandler(handler)
+    root.setLevel(log_level)
+    return handler
+
+
+def _restore_logging(handler_to_remove):
+    root = logging.getLogger()
+    root.handlers.remove(handler_to_remove)
+
+
 class Printer(object):
     """Class handling all non-debug-logging printing done by run-webkit-tests.
 
@@ -237,12 +246,22 @@ class Printer(object):
 
         self._meter = metered_stream.MeteredStream(options.verbose,
                                                    regular_output)
-        configure_logging(self._options, self._meter)
+        self._logging_handler = _configure_logging(self._meter,
+            options.verbose)
 
         self.switches = parse_print_options(options.print_options,
             options.verbose, child_processes, is_fully_parallel)
 
-    # These two routines just hide the implmentation of the switches.
+    def cleanup(self):
+        """Restore logging configuration to its initial settings."""
+        if self._logging_handler:
+            _restore_logging(self._logging_handler)
+            self._logging_handler = None
+
+    def __del__(self):
+        self.cleanup()
+
+    # These two routines just hide the implementation of the switches.
     def disabled(self, option):
         return not option in self.switches
 
diff --git a/WebKitTools/Scripts/webkitpy/layout_tests/layout_package/printing_unittest.py b/WebKitTools/Scripts/webkitpy/layout_tests/layout_package/printing_unittest.py
index 40c691f..29139d0 100644
--- a/WebKitTools/Scripts/webkitpy/layout_tests/layout_package/printing_unittest.py
+++ b/WebKitTools/Scripts/webkitpy/layout_tests/layout_package/printing_unittest.py
@@ -37,6 +37,7 @@ import unittest
 import logging
 
 from webkitpy.common import array_stream
+from webkitpy.common.system import logtesting
 from webkitpy.layout_tests import port
 from webkitpy.layout_tests.layout_package import printing
 from webkitpy.layout_tests.layout_package import dump_render_tree_thread
@@ -53,25 +54,24 @@ def get_options(args):
 
 class TestUtilityFunctions(unittest.TestCase):
     def test_configure_logging(self):
-        # FIXME: We need to figure out how to reset the basic logger.
-        # FIXME: If other testing classes call logging.basicConfig() then
-        # FIXME: these calls become no-ops and we can't control the
-        # FIXME: configuration to test things properly.
         options, args = get_options([])
         stream = array_stream.ArrayStream()
-        printing.configure_logging(options, stream)
+        handler = printing._configure_logging(stream, options.verbose)
         logging.info("this should be logged")
-        # self.assertFalse(stream.empty())
+        self.assertFalse(stream.empty())
 
         stream.reset()
         logging.debug("this should not be logged")
-        # self.assertTrue(stream.empty())
+        self.assertTrue(stream.empty())
+
+        printing._restore_logging(handler)
 
         stream.reset()
         options, args = get_options(['--verbose'])
-        printing.configure_logging(options, stream)
+        handler = printing._configure_logging(stream, options.verbose)
         logging.debug("this should be logged")
-        # self.assertFalse(stream.empty())
+        self.assertFalse(stream.empty())
+        printing._restore_logging(handler)
 
     def test_print_options(self):
         options, args = get_options([])
@@ -190,6 +190,14 @@ class  Testprinter(unittest.TestCase):
         do_helper(method_name, switch, 'hello', exp_err, exp_bot)
         do_helper(method_name, 'everything', 'hello', exp_err, exp_bot)
 
+    def test_configure_and_cleanup(self):
+        # This test verifies that calling cleanup repeatedly and deleting
+        # the object is safe.
+        printer, err, out = self.get_printer(['--print', 'everything'])
+        printer.cleanup()
+        printer.cleanup()
+        printer = None
+
     def test_print_actual(self):
         # Actual results need to be logged to the buildbot's stream.
         self.do_switch_tests('print_actual', 'actual', to_buildbot=True)
@@ -421,11 +429,12 @@ class  Testprinter(unittest.TestCase):
         self.assertFalse(err.empty())
         self.assertTrue(out.empty())
 
-    def test_write(self):
+    def test_write_nothing(self):
         printer, err, out = self.get_printer(['--print', 'nothing'])
         printer.write("foo")
         self.assertTrue(err.empty())
 
+    def test_write_misc(self):
         printer, err, out = self.get_printer(['--print', 'misc'])
         printer.write("foo")
         self.assertFalse(err.empty())
@@ -433,6 +442,7 @@ class  Testprinter(unittest.TestCase):
         printer.write("foo", "config")
         self.assertTrue(err.empty())
 
+    def test_write_everything(self):
         printer, err, out = self.get_printer(['--print', 'everything'])
         printer.write("foo")
         self.assertFalse(err.empty())
@@ -440,11 +450,10 @@ class  Testprinter(unittest.TestCase):
         printer.write("foo", "config")
         self.assertFalse(err.empty())
 
-        # FIXME: this should be logged somewhere, but it actually
-        # disappears into the ether in the logging subsystem.
+    def test_write_verbose(self):
         printer, err, out = self.get_printer(['--verbose'])
         printer.write("foo")
-        self.assertTrue(err.empty())
+        self.assertTrue(not err.empty() and "foo" in err.get()[0])
         self.assertTrue(out.empty())
 
     def test_print_unexpected_results(self):
diff --git a/WebKitTools/Scripts/webkitpy/layout_tests/layout_package/test_expectations_unittest.py b/WebKitTools/Scripts/webkitpy/layout_tests/layout_package/test_expectations_unittest.py
index e4c6b7e..26eb18d 100644
--- a/WebKitTools/Scripts/webkitpy/layout_tests/layout_package/test_expectations_unittest.py
+++ b/WebKitTools/Scripts/webkitpy/layout_tests/layout_package/test_expectations_unittest.py
@@ -100,7 +100,7 @@ class Base(unittest.TestCase):
         return """
 BUG_TEST : failures/expected/text.html = TEXT
 BUG_TEST WONTFIX SKIP : failures/expected/crash.html = CRASH
-BUG_TEST REBASELINE : failure/expected/missing_image.html = MISSING
+BUG_TEST REBASELINE : failures/expected/missing_image.html = MISSING
 BUG_TEST WONTFIX : failures/expected/image_checksum.html = IMAGE
 BUG_TEST WONTFIX WIN : failures/expected/image.html = IMAGE
 """
@@ -253,6 +253,13 @@ BUG_TEST : failures/expected/text.html = IMAGE""")
 BUG_TEST : failures/expected/text.html = TEXT
 BUG_TEST : failures/expected/text.html = IMAGE""")
 
+    def test_semantic_missing_file(self):
+        # This should log a non-fatal error.
+        self.parse_exp('BUG_TEST : missing_file.html = TEXT')
+        self.assertEqual(
+            len(self._exp._expected_failures.get_non_fatal_errors()), 1)
+
+
     def test_overrides(self):
         self.parse_exp(self.get_basic_expectations(), """
 BUG_OVERRIDE : failures/expected/text.html = IMAGE""")
diff --git a/WebKitTools/Scripts/webkitpy/layout_tests/port/base.py b/WebKitTools/Scripts/webkitpy/layout_tests/port/base.py
index af1af93..0dda774 100644
--- a/WebKitTools/Scripts/webkitpy/layout_tests/port/base.py
+++ b/WebKitTools/Scripts/webkitpy/layout_tests/port/base.py
@@ -327,7 +327,6 @@ class Port(object):
         if not self._webkit_base_dir:
             abspath = os.path.abspath(__file__)
             self._webkit_base_dir = abspath[0:abspath.find('WebKitTools')]
-            _log.debug("Using WebKit root: %s" % self._webkit_base_dir)
 
         return os.path.join(self._webkit_base_dir, *comps)
 
diff --git a/WebKitTools/Scripts/webkitpy/layout_tests/port/test.py b/WebKitTools/Scripts/webkitpy/layout_tests/port/test.py
index d36b540..e309334 100644
--- a/WebKitTools/Scripts/webkitpy/layout_tests/port/test.py
+++ b/WebKitTools/Scripts/webkitpy/layout_tests/port/test.py
@@ -151,7 +151,10 @@ class TestDriver(base.Driver):
     def run_test(self, uri, timeoutms, image_hash):
         basename = uri[(uri.rfind("/") + 1):uri.rfind(".html")]
 
-        error = ''
+        if 'error' in basename:
+            error = basename + "_error\n"
+        else:
+            error = ''
         checksum = None
         # There are four currently supported types of tests: text, image,
         # image hash (checksum), and stderr output. The fake output
@@ -170,10 +173,13 @@ class TestDriver(base.Driver):
         # will allow us to see if any results get crossed by the rest of the
         # program.
         if 'failures' in uri:
+            if 'keyboard' in basename:
+                raise KeyboardInterrupt
+            if 'exception' in basename:
+                raise ValueError('exception from ' + basename)
+
             crash = 'crash' in basename
             timeout = 'timeout' in basename
-            if 'error' in basename:
-                error = basename + "_error\n"
             if 'text' in basename:
                 output = basename + '_failed-txt\n'
             else:
diff --git a/WebKitTools/Scripts/webkitpy/layout_tests/run_webkit_tests.py b/WebKitTools/Scripts/webkitpy/layout_tests/run_webkit_tests.py
index 7163e1b..4132260 100755
--- a/WebKitTools/Scripts/webkitpy/layout_tests/run_webkit_tests.py
+++ b/WebKitTools/Scripts/webkitpy/layout_tests/run_webkit_tests.py
@@ -75,7 +75,6 @@ from test_types import image_diff
 from test_types import text_diff
 from test_types import test_type_base
 
-from webkitpy.common.system.executive import Executive
 from webkitpy.thirdparty import simplejson
 
 import port
@@ -106,12 +105,11 @@ class TestInfo:
         self._image_hash = None
 
     def _read_image_hash(self):
-        try:
-            with codecs.open(self._expected_hash_path, "r", "ascii") as hash_file:
-                return hash_file.read()
-        except IOError, e:
-            if errno.ENOENT != e.errno:
-                raise
+        if not os.path.exists(self._expected_hash_path):
+            return None
+
+        with codecs.open(self._expected_hash_path, "r", "ascii") as hash_file:
+            return hash_file.read()
 
     def image_hash(self):
         # Read the image_hash lazily to reduce startup time.
@@ -273,35 +271,42 @@ class TestRunner:
         #        options.results_directory, use_tls=True, port=9323)
 
         # a list of TestType objects
-        self._test_types = []
+        self._test_types = [text_diff.TestTextDiff]
+        if options.pixel_tests:
+            self._test_types.append(image_diff.ImageDiff)
 
         # a set of test files, and the same tests as a list
         self._test_files = set()
         self._test_files_list = None
         self._result_queue = Queue.Queue()
-
         self._retrying = False
 
-        # Hack for dumping threads on the bots
-        self._last_thread_dump = None
-
-    def __del__(self):
-        _log.debug("flushing stdout")
-        sys.stdout.flush()
-        _log.debug("flushing stderr")
-        sys.stderr.flush()
-        _log.debug("stopping http server")
-        self._port.stop_http_server()
-        _log.debug("stopping websocket server")
-        self._port.stop_websocket_server()
-
-    def gather_file_paths(self, paths):
+    def collect_tests(self, args, last_unexpected_results):
         """Find all the files to test.
 
         Args:
-          paths: a list of globs to use instead of the defaults."""
+          args: list of test arguments from the command line
+          last_unexpected_results: list of unexpected results to retest, if any
+
+        """
+        paths = [arg for arg in args if arg and arg != '']
+        paths += last_unexpected_results
+        if self._options.test_list:
+            paths += read_test_files(self._options.test_list)
         self._test_files = test_files.gather_test_files(self._port, paths)
 
+    def lint(self):
+        # Creating the expecations for each platform/configuration pair does
+        # all the test list parsing and ensures it's correct syntax (e.g. no
+        # dupes).
+        for platform_name in self._port.test_platform_names():
+            self.parse_expectations(platform_name, is_debug_mode=True)
+            self.parse_expectations(platform_name, is_debug_mode=False)
+        self._printer.write("")
+        _log.info("If there are no fail messages, errors or exceptions, "
+                  "then the lint succeeded.")
+        return 0
+
     def parse_expectations(self, test_platform_name, is_debug_mode):
         """Parse the expectations from the test_list files and return a data
         structure holding them. Throws an error if the test_list files have
@@ -336,8 +341,8 @@ class TestRunner:
         self._printer.print_expected("Found:  %d tests" %
                                      (len(self._test_files)))
         if not num_all_test_files:
-            _log.critical("No tests to run.")
-            sys.exit(1)
+            _log.critical('No tests to run.')
+            return None
 
         skipped = set()
         if num_all_test_files > 1 and not self._options.force:
@@ -468,10 +473,6 @@ class TestRunner:
 
         return result_summary
 
-    def add_test_type(self, test_type):
-        """Add a TestType to the TestRunner."""
-        self._test_types.append(test_type)
-
     def _get_dir_for_test_file(self, test_file):
         """Returns the highest-level directory by which to shard the given
         test file."""
@@ -643,7 +644,7 @@ class TestRunner:
         """
         # FIXME: We should use webkitpy.tool.grammar.pluralize here.
         plural = ""
-        if self._options.child_processes > 1:
+        if not self._is_single_threaded():
             plural = "s"
         self._printer.print_update('Starting %s%s ...' %
                                    (self._port.driver_name(), plural))
@@ -714,6 +715,49 @@ class TestRunner:
         """Returns whether the test runner needs an HTTP server."""
         return self._contains_tests(self.HTTP_SUBDIR)
 
+    def set_up_run(self):
+        """Configures the system to be ready to run tests.
+
+        Returns a ResultSummary object if we should continue to run tests,
+        or None if we should abort.
+
+        """
+        # This must be started before we check the system dependencies,
+        # since the helper may do things to make the setup correct.
+        self._printer.print_update("Starting helper ...")
+        self._port.start_helper()
+
+        # Check that the system dependencies (themes, fonts, ...) are correct.
+        if not self._options.nocheck_sys_deps:
+            self._printer.print_update("Checking system dependencies ...")
+            if not self._port.check_sys_deps(self.needs_http()):
+                self._port.stop_helper()
+                return None
+
+        if self._options.clobber_old_results:
+            self._clobber_old_results()
+
+        # Create the output directory if it doesn't already exist.
+        self._port.maybe_make_directory(self._options.results_directory)
+
+        self._port.setup_test_run()
+
+        self._printer.print_update("Preparing tests ...")
+        result_summary = self.prepare_lists_and_print_output()
+        if not result_summary:
+            return None
+
+        if self.needs_http():
+            self._printer.print_update('Starting HTTP server ...')
+            self._port.start_http_server()
+
+        if self._contains_tests(self.WEBSOCKET_SUBDIR):
+            self._printer.print_update('Starting WebSocket server ...')
+            self._port.start_websocket_server()
+            # self._websocket_secure_server.Start()
+
+        return result_summary
+
     def run(self, result_summary):
         """Run all our tests on all our test files.
 
@@ -726,19 +770,12 @@ class TestRunner:
         Return:
           The number of unexpected results (0 == success)
         """
-        if not self._test_files:
-            return 0
-        start_time = time.time()
+        # gather_test_files() must have been called first to initialize us.
+        # If we didn't find any files to test, we've errored out already in
+        # prepare_lists_and_print_output().
+        assert(len(self._test_files))
 
-        if self.needs_http():
-            self._printer.print_update('Starting HTTP server ...')
-
-            self._port.start_http_server()
-
-        if self._contains_tests(self.WEBSOCKET_SUBDIR):
-            self._printer.print_update('Starting WebSocket server ...')
-            self._port.start_websocket_server()
-            # self._websocket_secure_server.Start()
+        start_time = time.time()
 
         keyboard_interrupted, thread_timings, test_timings, \
             individual_test_timings = (
@@ -801,6 +838,20 @@ class TestRunner:
         # bot red for those.
         return unexpected_results['num_regressions']
 
+    def clean_up_run(self):
+        """Restores the system after we're done running tests."""
+
+        _log.debug("flushing stdout")
+        sys.stdout.flush()
+        _log.debug("flushing stderr")
+        sys.stderr.flush()
+        _log.debug("stopping http server")
+        self._port.stop_http_server()
+        _log.debug("stopping websocket server")
+        self._port.stop_websocket_server()
+        _log.debug("stopping helper")
+        self._port.stop_helper()
+
     def update_summary(self, result_summary):
         """Update the summary and print results with any completed tests."""
         while True:
@@ -819,6 +870,20 @@ class TestRunner:
             self._printer.print_progress(result_summary, self._retrying,
                                          self._test_files_list)
 
+    def _clobber_old_results(self):
+        # Just clobber the actual test results directories since the other
+        # files in the results directory are explicitly used for cross-run
+        # tracking.
+        self._printer.print_update("Clobbering old results in %s" %
+                                   self._options.results_directory)
+        layout_tests_dir = self._port.layout_tests_dir()
+        possible_dirs = os.listdir(layout_tests_dir)
+        for dirname in possible_dirs:
+            if os.path.isdir(os.path.join(layout_tests_dir, dirname)):
+                shutil.rmtree(os.path.join(self._options.results_directory,
+                                           dirname),
+                              ignore_errors=True)
+
     def _get_failures(self, result_summary, include_crashes):
         """Filters a dict of results and returns only the failures.
 
@@ -911,6 +976,33 @@ class TestRunner:
 
         _log.info("JSON files uploaded.")
 
+    def _print_config(self):
+        """Prints the configuration for the test run."""
+        p = self._printer
+        p.print_config("Using port '%s'" % self._port.name())
+        p.print_config("Placing test results in %s" %
+                       self._options.results_directory)
+        if self._options.new_baseline:
+            p.print_config("Placing new baselines in %s" %
+                           self._port.baseline_path())
+        p.print_config("Using %s build" % self._options.configuration)
+        if self._options.pixel_tests:
+            p.print_config("Pixel tests enabled")
+        else:
+            p.print_config("Pixel tests disabled")
+
+        p.print_config("Regular timeout: %s, slow test timeout: %s" %
+                       (self._options.time_out_ms,
+                        self._options.slow_time_out_ms))
+
+        if self._is_single_threaded():
+            p.print_config("Running one %s" % self._port.driver_name())
+        else:
+            p.print_config("Running %s %ss in parallel" %
+                           (self._options.child_processes,
+                            self._port.driver_name()))
+        p.print_config("")
+
     def _print_expected_results_of_type(self, result_summary,
                                         result_type, result_type_str):
         """Print the number of the tests in a given result class.
@@ -1266,12 +1358,12 @@ def read_test_files(files):
     return tests
 
 
-def run(port_obj, options, args, regular_output=sys.stderr,
+def run(port, options, args, regular_output=sys.stderr,
         buildbot_output=sys.stdout):
     """Run the tests.
 
     Args:
-      port_obj: Port object for port-specific behavior
+      port: Port object for port-specific behavior
       options: a dictionary of command line options
       args: a list of sub directories or files to test
       regular_output: a stream-like object that we can send logging/debug
@@ -1281,24 +1373,61 @@ def run(port_obj, options, args, regular_output=sys.stderr,
     Returns:
       the number of unexpected results that occurred, or -1 if there is an
           error.
-    """
 
-    # Configure the printing subsystem for printing output, logging debug
-    # info, and tracing tests.
-
-    if not options.child_processes:
-        # FIXME: Investigate perf/flakiness impact of using cpu_count + 1.
-        options.child_processes = port_obj.default_child_processes()
+    """
+    _set_up_derived_options(port, options)
 
-    printer = printing.Printer(port_obj, options, regular_output=regular_output,
-        buildbot_output=buildbot_output,
-        child_processes=int(options.child_processes),
-        is_fully_parallel=options.experimental_fully_parallel)
+    printer = printing.Printer(port, options, regular_output, buildbot_output,
+        int(options.child_processes), options.experimental_fully_parallel)
     if options.help_printing:
         printer.help_printing()
+        printer.cleanup()
         return 0
 
-    executive = Executive()
+    last_unexpected_results = _gather_unexpected_results(options)
+    if options.print_last_failures:
+        printer.write("\n".join(last_unexpected_results) + "\n")
+        printer.cleanup()
+        return 0
+
+    # We wrap any parts of the run that are slow or likely to raise exceptions
+    # in a try/finally to ensure that we clean up the logging configuration.
+    num_unexpected_results = -1
+    try:
+        test_runner = TestRunner(port, options, printer)
+        test_runner._print_config()
+
+        printer.print_update("Collecting tests ...")
+        test_runner.collect_tests(args, last_unexpected_results)
+
+        printer.print_update("Parsing expectations ...")
+        if options.lint_test_files:
+            return test_runner.lint()
+        test_runner.parse_expectations(port.test_platform_name(),
+                                       options.configuration == 'Debug')
+
+        printer.print_update("Checking build ...")
+        if not port.check_build(test_runner.needs_http()):
+            return -1
+
+        result_summary = test_runner.set_up_run()
+        if result_summary:
+            num_unexpected_results = test_runner.run(result_summary)
+            test_runner.clean_up_run()
+            _log.debug("Testing completed, Exit status: %d" %
+                       num_unexpected_results)
+    finally:
+        printer.cleanup()
+
+    return num_unexpected_results
+
+
+def _set_up_derived_options(port_obj, options):
+    """Sets the options values that depend on other options values."""
+
+    if not options.child_processes:
+        # FIXME: Investigate perf/flakiness impact of using cpu_count + 1.
+        options.child_processes = str(port_obj.default_child_processes())
 
     if not options.configuration:
         options.configuration = port_obj.default_configuration()
@@ -1318,30 +1447,6 @@ def run(port_obj, options, args, regular_output=sys.stderr,
         # Debug or Release.
         options.results_directory = port_obj.results_directory()
 
-    last_unexpected_results = []
-    if options.print_last_failures or options.retest_last_failures:
-        unexpected_results_filename = os.path.join(
-           options.results_directory, "unexpected_results.json")
-        with codecs.open(unexpected_results_filename, "r", "utf-8") as file:
-            results = simplejson.load(file)
-        last_unexpected_results = results['tests'].keys()
-        if options.print_last_failures:
-            printer.write("\n".join(last_unexpected_results) + "\n")
-            return 0
-
-    if options.clobber_old_results:
-        # Just clobber the actual test results directories since the other
-        # files in the results directory are explicitly used for cross-run
-        # tracking.
-        printer.print_update("Clobbering old results in %s" %
-                             options.results_directory)
-        layout_tests_dir = port_obj.layout_tests_dir()
-        possible_dirs = os.listdir(layout_tests_dir)
-        for dirname in possible_dirs:
-            if os.path.isdir(os.path.join(layout_tests_dir, dirname)):
-                shutil.rmtree(os.path.join(options.results_directory, dirname),
-                              ignore_errors=True)
-
     if not options.time_out_ms:
         if options.configuration == "Debug":
             options.time_out_ms = str(2 * TestRunner.DEFAULT_TEST_TIMEOUT_MS)
@@ -1349,92 +1454,18 @@ def run(port_obj, options, args, regular_output=sys.stderr,
             options.time_out_ms = str(TestRunner.DEFAULT_TEST_TIMEOUT_MS)
 
     options.slow_time_out_ms = str(5 * int(options.time_out_ms))
-    printer.print_config("Regular timeout: %s, slow test timeout: %s" %
-                   (options.time_out_ms, options.slow_time_out_ms))
-
-    if int(options.child_processes) == 1:
-        printer.print_config("Running one %s" % port_obj.driver_name())
-    else:
-        printer.print_config("Running %s %ss in parallel" % (
-                       options.child_processes, port_obj.driver_name()))
-
-    # Include all tests if none are specified.
-    new_args = []
-    for arg in args:
-        if arg and arg != '':
-            new_args.append(arg)
-
-    paths = new_args
-    if not paths:
-        paths = []
-    paths += last_unexpected_results
-    if options.test_list:
-        paths += read_test_files(options.test_list)
-
-    # Create the output directory if it doesn't already exist.
-    port_obj.maybe_make_directory(options.results_directory)
-    printer.print_update("Collecting tests ...")
-
-    test_runner = TestRunner(port_obj, options, printer)
-    test_runner.gather_file_paths(paths)
-
-    if options.lint_test_files:
-        # Creating the expecations for each platform/configuration pair does
-        # all the test list parsing and ensures it's correct syntax (e.g. no
-        # dupes).
-        for platform_name in port_obj.test_platform_names():
-            test_runner.parse_expectations(platform_name, is_debug_mode=True)
-            test_runner.parse_expectations(platform_name, is_debug_mode=False)
-        printer.write("")
-        _log.info("If there are no fail messages, errors or exceptions, "
-                  "then the lint succeeded.")
-        return 0
-
-    printer.print_config("Using port '%s'" % port_obj.name())
-    printer.print_config("Placing test results in %s" %
-                         options.results_directory)
-    if options.new_baseline:
-        printer.print_config("Placing new baselines in %s" %
-                             port_obj.baseline_path())
-    printer.print_config("Using %s build" % options.configuration)
-    if options.pixel_tests:
-        printer.print_config("Pixel tests enabled")
-    else:
-        printer.print_config("Pixel tests disabled")
-    printer.print_config("")
-
-    printer.print_update("Parsing expectations ...")
-    test_runner.parse_expectations(port_obj.test_platform_name(),
-                                   options.configuration == 'Debug')
-
-    printer.print_update("Checking build ...")
-    if not port_obj.check_build(test_runner.needs_http()):
-        return -1
-
-    printer.print_update("Starting helper ...")
-    port_obj.start_helper()
-
-    # Check that the system dependencies (themes, fonts, ...) are correct.
-    if not options.nocheck_sys_deps:
-        printer.print_update("Checking system dependencies ...")
-        if not port_obj.check_sys_deps(test_runner.needs_http()):
-            return -1
-
-    printer.print_update("Preparing tests ...")
-    result_summary = test_runner.prepare_lists_and_print_output()
-
-    port_obj.setup_test_run()
-
-    test_runner.add_test_type(text_diff.TestTextDiff)
-    if options.pixel_tests:
-        test_runner.add_test_type(image_diff.ImageDiff)
 
-    num_unexpected_results = test_runner.run(result_summary)
 
-    port_obj.stop_helper()
-
-    _log.debug("Exit status: %d" % num_unexpected_results)
-    return num_unexpected_results
+def _gather_unexpected_results(options):
+    """Returns the unexpected results from the previous run, if any."""
+    last_unexpected_results = []
+    if options.print_last_failures or options.retest_last_failures:
+        unexpected_results_filename = os.path.join(
+        options.results_directory, "unexpected_results.json")
+        with codecs.open(unexpected_results_filename, "r", "utf-8") as file:
+            results = simplejson.load(file)
+        last_unexpected_results = results['tests'].keys()
+    return last_unexpected_results
 
 
 def _compat_shim_callback(option, opt_str, value, parser):
@@ -1597,7 +1628,7 @@ def parse_args(args=None):
         #   Restart DumpRenderTree every n tests (default: 1000)
         optparse.make_option("--batch-size",
             help=("Run a the tests in batches (n), after every n tests, "
-                  "DumpRenderTree is relaunched.")),
+                  "DumpRenderTree is relaunched."), type="int", default=0),
         # old-run-webkit-tests calls --run-singly: -1|--singly
         # Isolate each test case run (implies --nthly 1 --verbose)
         optparse.make_option("--run-singly", action="store_true",
diff --git a/WebKitTools/Scripts/webkitpy/layout_tests/run_webkit_tests_unittest.py b/WebKitTools/Scripts/webkitpy/layout_tests/run_webkit_tests_unittest.py
index 3a3b14e..4cbfdfc 100644
--- a/WebKitTools/Scripts/webkitpy/layout_tests/run_webkit_tests_unittest.py
+++ b/WebKitTools/Scripts/webkitpy/layout_tests/run_webkit_tests_unittest.py
@@ -41,6 +41,7 @@ import threading
 import unittest
 
 from webkitpy.common import array_stream
+from webkitpy.common.system import outputcapture
 from webkitpy.layout_tests import port
 from webkitpy.layout_tests import run_webkit_tests
 from webkitpy.layout_tests.layout_package import dump_render_tree_thread
@@ -48,75 +49,139 @@ from webkitpy.layout_tests.layout_package import dump_render_tree_thread
 from webkitpy.thirdparty.mock import Mock
 
 
-def passing_run(args, port_obj=None, record_results=False,
+def passing_run(args=[], port_obj=None, record_results=False,
                 tests_included=False):
-    args.extend(['--print', 'nothing'])
+    new_args = ['--print', 'nothing']
+    if not '--platform' in args:
+        new_args.extend(['--platform', 'test'])
+    if not record_results:
+        new_args.append('--no-record-results')
+    new_args.extend(args)
     if not tests_included:
         # We use the glob to test that globbing works.
-        args.extend(['passes', 'failures/expected/*'])
-    if not record_results:
-        args.append('--no-record-results')
-    options, args = run_webkit_tests.parse_args(args)
+        new_args.extend(['passes', 'failures/expected/*'])
+    options, parsed_args = run_webkit_tests.parse_args(new_args)
     if port_obj is None:
         port_obj = port.get(options.platform, options)
-    res = run_webkit_tests.run(port_obj, options, args)
+    res = run_webkit_tests.run(port_obj, options, parsed_args)
     return res == 0
 
 
-def logging_run(args, tests_included=False):
-    args.extend(['--no-record-results'])
+def logging_run(args=[], tests_included=False):
+    new_args = ['--no-record-results']
+    if not '--platform' in args:
+        new_args.extend(['--platform', 'test'])
+    if args:
+        new_args.extend(args)
     if not tests_included:
-        args.extend(['passes', 'failures/expected/*'])
-    options, args = run_webkit_tests.parse_args(args)
+        new_args.extend(['passes', 'failures/expected/*'])
+    options, parsed_args = run_webkit_tests.parse_args(new_args)
     port_obj = port.get(options.platform, options)
     buildbot_output = array_stream.ArrayStream()
     regular_output = array_stream.ArrayStream()
-    res = run_webkit_tests.run(port_obj, options, args,
+    res = run_webkit_tests.run(port_obj, options, parsed_args,
                                buildbot_output=buildbot_output,
                                regular_output=regular_output)
     return (res, buildbot_output, regular_output)
 
 
 class MainTest(unittest.TestCase):
-    def test_fast(self):
-        self.assertTrue(passing_run(['--platform', 'test']))
-        self.assertTrue(passing_run(['--platform', 'test', '--run-singly']))
-        self.assertTrue(passing_run(['--platform', 'test',
-                                     'passes/text.html'], tests_included=True))
+    def test_basic(self):
+        self.assertTrue(passing_run())
 
-    def test_unexpected_failures(self):
-        # Run tests including the unexpected failures.
-        self.assertFalse(passing_run(['--platform', 'test'],
-                         tests_included=True))
+    def test_batch_size(self):
+        # FIXME: verify # of tests run
+        self.assertTrue(passing_run(['--batch-size', '2']))
 
-    def test_one_child_process(self):
+    def test_child_process_1(self):
         (res, buildbot_output, regular_output) = logging_run(
-             ['--platform', 'test', '--print', 'config', '--child-processes',
-              '1'])
+             ['--print', 'config', '--child-processes', '1'])
         self.assertTrue('Running one DumpRenderTree\n'
                         in regular_output.get())
 
-    def test_two_child_processes(self):
+    def test_child_processes_2(self):
         (res, buildbot_output, regular_output) = logging_run(
-             ['--platform', 'test', '--print', 'config', '--child-processes',
-              '2'])
+             ['--print', 'config', '--child-processes', '2'])
         self.assertTrue('Running 2 DumpRenderTrees in parallel\n'
                         in regular_output.get())
 
+    def test_exception_raised(self):
+        self.assertRaises(ValueError, logging_run,
+            ['failures/expected/exception.html'], tests_included=True)
+
+    def test_full_results_html(self):
+        # FIXME: verify html?
+        self.assertTrue(passing_run(['--full-results-html']))
+
+    def test_help_printing(self):
+        res, out, err = logging_run(['--help-printing'])
+        self.assertEqual(res, 0)
+        self.assertTrue(out.empty())
+        self.assertFalse(err.empty())
+
+    def test_keyboard_interrupt(self):
+        # Note that this also tests running a test marked as SKIP if
+        # you specify it explicitly.
+        self.assertRaises(KeyboardInterrupt, passing_run,
+            ['failures/expected/keyboard.html'], tests_included=True)
+
     def test_last_results(self):
-        passing_run(['--platform', 'test'], record_results=True)
+        passing_run(['--clobber-old-results'], record_results=True)
         (res, buildbot_output, regular_output) = logging_run(
-            ['--platform', 'test', '--print-last-failures'])
+            ['--print-last-failures'])
         self.assertEqual(regular_output.get(), ['\n\n'])
         self.assertEqual(buildbot_output.get(), [])
 
+    def test_lint_test_files(self):
+        # FIXME:  add errors?
+        res, out, err = logging_run(['--lint-test-files'], tests_included=True)
+        self.assertEqual(res, 0)
+        self.assertTrue(out.empty())
+        self.assertTrue(any(['lint succeeded' in msg for msg in err.get()]))
+
     def test_no_tests_found(self):
-        self.assertRaises(SystemExit, logging_run,
-                          ['--platform', 'test', 'resources'],
-                          tests_included=True)
-        self.assertRaises(SystemExit, logging_run,
-                          ['--platform', 'test', 'foo'],
-                          tests_included=True)
+        res, out, err = logging_run(['resources'], tests_included=True)
+        self.assertEqual(res, -1)
+        self.assertTrue(out.empty())
+        self.assertTrue('No tests to run.\n' in err.get())
+
+    def test_no_tests_found_2(self):
+        res, out, err = logging_run(['foo'], tests_included=True)
+        self.assertEqual(res, -1)
+        self.assertTrue(out.empty())
+        self.assertTrue('No tests to run.\n' in err.get())
+
+    def test_randomize_order(self):
+        # FIXME: verify order was shuffled
+        self.assertTrue(passing_run(['--randomize-order']))
+
+    def test_run_chunk(self):
+        # FIXME: verify # of tests run
+        self.assertTrue(passing_run(['--run-chunk', '1:4']))
+
+    def test_run_force(self):
+        # This raises an exception because we run
+        # failures/expected/exception.html, which is normally SKIPped.
+        self.assertRaises(ValueError, logging_run, ['--force'])
+
+    def test_run_part(self):
+        # FIXME: verify # of tests run
+        self.assertTrue(passing_run(['--run-part', '1:2']))
+
+    def test_run_singly(self):
+        self.assertTrue(passing_run(['--run-singly']))
+
+    def test_single_file(self):
+        # FIXME: verify # of tests run
+        self.assertTrue(passing_run(['passes/text.html'], tests_included=True))
+
+    def test_unexpected_failures(self):
+        # Run tests including the unexpected failures.
+        res, out, err = logging_run(tests_included=True)
+        self.assertEqual(res, 1)
+        self.assertFalse(out.empty())
+        self.assertFalse(err.empty())
+
 
 def _mocked_open(original_open, file_list):
     def _wrapper(name, mode, encoding):
@@ -144,7 +209,7 @@ class RebaselineTest(unittest.TestCase):
             # is missing, update the expected generic location.
             file_list = []
             codecs.open = _mocked_open(original_open, file_list)
-            passing_run(['--platform', 'test', '--pixel-tests',
+            passing_run(['--pixel-tests',
                          '--reset-results',
                          'passes/image.html',
                          'failures/expected/missing_image.html'],
@@ -165,7 +230,7 @@ class RebaselineTest(unittest.TestCase):
             # is mssing, then create a new expectation in the platform dir.
             file_list = []
             codecs.open = _mocked_open(original_open, file_list)
-            passing_run(['--platform', 'test', '--pixel-tests',
+            passing_run(['--pixel-tests',
                          '--new-baseline',
                          'passes/image.html',
                          'failures/expected/missing_image.html'],
@@ -208,6 +273,7 @@ class DryrunTest(unittest.TestCase):
         if sys.platform != "darwin":
             return
 
+        self.assertTrue(passing_run(['--platform', 'test']))
         self.assertTrue(passing_run(['--platform', 'dryrun',
                                      'fast/html']))
         self.assertTrue(passing_run(['--platform', 'dryrun-mac',
@@ -223,6 +289,11 @@ class TestThread(dump_render_tree_thread.WatchableThread):
         self._timeout_queue = Queue.Queue()
 
     def run(self):
+        self._covered_run()
+
+    def _covered_run(self):
+        # FIXME: this is a separate routine to work around a bug
+        # in coverage: see http://bitbucket.org/ned/coveragepy/issue/85.
         self._thread_id = thread.get_ident()
         try:
             self._started_queue.put('')
@@ -284,8 +355,11 @@ class WaitForThreadsToFinishTest(unittest.TestCase):
         self.assertTrue(interrupted)
 
     def test_timeout(self):
+        oc = outputcapture.OutputCapture()
+        oc.capture_output()
         interrupted = self.run_one_thread('Timeout')
         self.assertFalse(interrupted)
+        oc.restore_output()
 
     def test_exception(self):
         self.assertRaises(ValueError, self.run_one_thread, 'Exception')
@@ -293,6 +367,8 @@ class WaitForThreadsToFinishTest(unittest.TestCase):
 
 class StandaloneFunctionsTest(unittest.TestCase):
     def test_log_wedged_thread(self):
+        oc = outputcapture.OutputCapture()
+        oc.capture_output()
         logger = run_webkit_tests._log
         astream = array_stream.ArrayStream()
         handler = TestHandler(astream)
@@ -310,6 +386,7 @@ class StandaloneFunctionsTest(unittest.TestCase):
 
         self.assertFalse(astream.empty())
         self.assertFalse(child_thread.isAlive())
+        oc.restore_output()
 
     def test_find_thread_stack(self):
         id, stack = sys._current_frames().items()[0]

-- 
WebKit Debian packaging



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