diff -r 000000000000 -r 4f2f89ce4247 WebKitTools/Scripts/webkitpy/tool/bot/sheriff_unittest.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebKitTools/Scripts/webkitpy/tool/bot/sheriff_unittest.py	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,105 @@
+# 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 name of Google Inc. 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 os
+import unittest
+
+from webkitpy.common.net.buildbot import Builder
+from webkitpy.common.system.outputcapture import OutputCapture
+from webkitpy.thirdparty.mock import Mock
+from webkitpy.tool.bot.sheriff import Sheriff
+from webkitpy.tool.mocktool import MockTool
+
+
+class MockSheriffBot(object):
+    name = "mock-sheriff-bot"
+    watchers = [
+        "watcher@example.com",
+    ]
+
+    def run_webkit_patch(self, args):
+        return "Created bug https://bugs.webkit.org/show_bug.cgi?id=36936\n"
+
+
+class SheriffTest(unittest.TestCase):
+    def test_rollout_reason(self):
+        sheriff = Sheriff(MockTool(), MockSheriffBot())
+        builders = [
+            Builder("Foo", None),
+            Builder("Bar", None),
+        ]
+        reason = "Caused builders Foo and Bar to fail."
+        self.assertEquals(sheriff._rollout_reason(builders), reason)
+
+    def test_post_blame_comment_on_bug(self):
+        def run():
+            sheriff = Sheriff(MockTool(), MockSheriffBot())
+            builders = [
+                Builder("Foo", None),
+                Builder("Bar", None),
+            ]
+            commit_info = Mock()
+            commit_info.bug_id = lambda: None
+            commit_info.revision = lambda: 4321
+            # Should do nothing with no bug_id
+            sheriff.post_blame_comment_on_bug(commit_info, builders, [])
+            sheriff.post_blame_comment_on_bug(commit_info, builders, [2468, 5646])
+            # Should try to post a comment to the bug, but MockTool.bugs does nothing.
+            commit_info.bug_id = lambda: 1234
+            sheriff.post_blame_comment_on_bug(commit_info, builders, [])
+            sheriff.post_blame_comment_on_bug(commit_info, builders, [3432])
+            sheriff.post_blame_comment_on_bug(commit_info, builders, [841, 5646])
+
+        expected_stderr = u"MOCK bug comment: bug_id=1234, cc=['watcher@example.com']\n--- Begin comment ---\\http://trac.webkit.org/changeset/4321 might have broken Foo and Bar\n--- End comment ---\n\nMOCK bug comment: bug_id=1234, cc=['watcher@example.com']\n--- Begin comment ---\\http://trac.webkit.org/changeset/4321 might have broken Foo and Bar\n--- End comment ---\n\nMOCK bug comment: bug_id=1234, cc=['watcher@example.com']\n--- Begin comment ---\\http://trac.webkit.org/changeset/4321 might have broken Foo and Bar\nThe following changes are on the blame list:\nhttp://trac.webkit.org/changeset/841\nhttp://trac.webkit.org/changeset/5646\n--- End comment ---\n\n"
+        OutputCapture().assert_outputs(self, run, expected_stderr=expected_stderr)
+
+    def test_provoke_flaky_builders(self):
+        def run():
+            tool = MockTool()
+            tool.buildbot.light_tree_on_fire()
+            sheriff = Sheriff(tool, MockSheriffBot())
+            revisions_causing_failures = {}
+            sheriff.provoke_flaky_builders(revisions_causing_failures)
+        expected_stderr = "MOCK: force_build: name=Builder2, username=mock-sheriff-bot, comments=Probe for flakiness.\n"
+        OutputCapture().assert_outputs(self, run, expected_stderr=expected_stderr)
+
+    def test_post_blame_comment_on_bug(self):
+        sheriff = Sheriff(MockTool(), MockSheriffBot())
+        builders = [
+            Builder("Foo", None),
+            Builder("Bar", None),
+        ]
+        commit_info = Mock()
+        commit_info.bug_id = lambda: None
+        commit_info.revision = lambda: 4321
+        commit_info.committer = lambda: None
+        commit_info.committer_email = lambda: "foo@example.com"
+        commit_info.reviewer = lambda: None
+        commit_info.author = lambda: None
+        sheriff.post_automatic_rollout_patch(commit_info, builders)
+