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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)