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# Copyright (C) 2011 Google Inc. All rights reserved.
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'''Unit tests for watchlist.py.'''


import unittest2 as unittest


import watchlist


class MockErrorHandler(object):
    def __init__(self, handle_style_error):
        self.turned_off_filtering = False
        self._handle_style_error = handle_style_error

    def turn_off_line_filtering(self):
        self.turned_off_filtering = True

    def __call__(self, line_number, category, confidence, message):
        self._handle_style_error(self, line_number, category, confidence, message)
        return True


class WatchListTest(unittest.TestCase):
    def test_basic_error_message(self):
        def handle_style_error(mock_error_handler, line_number, category, confidence, message):
            mock_error_handler.had_error = True
            self.assertEqual(0, line_number)
            self.assertEqual('watchlist/general', category)

        error_handler = MockErrorHandler(handle_style_error)
        error_handler.had_error = False
        checker = watchlist.WatchListChecker('watchlist', error_handler)
        checker.check(['{"DEFINTIONS": {}}'])
        self.assertTrue(error_handler.had_error)
        self.assertTrue(error_handler.turned_off_filtering)