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import unittest

from webkitpy.thirdparty.mock import Mock
from webkitpy.tool.mocktool import MockOptions, MockTool
from webkitpy.tool.steps.cleanworkingdirectory import CleanWorkingDirectory
from webkitpy.common.system.executive import ScriptError


class CleanWorkingDirectoryTest(unittest.TestCase):
    def test_run_working_directory_changes_no_force(self):
        tool = MockTool()
        tool._scm = Mock()
        step = CleanWorkingDirectory(tool, MockOptions(clean=True, force_clean=False))
        tool._scm.has_working_directory_changes = lambda: True
        self.assertRaises(ScriptError, step.run, {})
        self.assertEqual(tool._scm.discard_working_directory_changes.call_count, 0)

    def test_run_working_directory_changes_force(self):
        tool = MockTool()
        tool._scm = Mock()
        step = CleanWorkingDirectory(tool, MockOptions(clean=True, force_clean=True))
        tool._scm.has_working_directory_changes = lambda: True
        step.run({})
        self.assertEqual(tool._scm.discard_working_directory_changes.call_count, 1)

    def test_run_no_local_changes(self):
        tool = MockTool()
        tool._scm = Mock()
        step = CleanWorkingDirectory(tool, MockOptions(clean=True, force_clean=False))
        tool._scm.has_working_directory_changes = lambda: False
        tool._scm.has_local_commits = lambda: False
        step.run({})
        self.assertEqual(tool._scm.discard_working_directory_changes.call_count, 1)

    def test_no_clean(self):
        tool = MockTool()
        tool._scm = Mock()
        step = CleanWorkingDirectory(tool, MockOptions(clean=False))
        step.run({})
        self.assertEqual(tool._scm.discard_working_directory_changes.call_count, 0)