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# Copyright (c) 2014, Enthought, Inc.
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in /LICENSE.txt and may be redistributed only
# under the conditions described in the aforementioned license.  The license
# is also available online at http://www.enthought.com/licenses/BSD.txt
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# Thanks for using Enthought open source!
#
#----------------------------------------------------------------------------
import unittest
from traits.util.event_tracer import (
    BaseMessageRecord, ChangeMessageRecord, CallingMessageRecord,
    ExitMessageRecord)


class TestMessageRecords(unittest.TestCase):

    def test_base_message_record(self):
        record = BaseMessageRecord()

        # Check unicode output
        self.assertEqual(unicode(record), u'\n')

        # Check initialization
        with self.assertRaises(TypeError):
            BaseMessageRecord(sdd=0)

    def test_change_message_record(self):
        record = ChangeMessageRecord(
            time=1,  indent=3, name='john', old=1, new=1,
            class_name='MyClass')

        # Check unicode output
        self.assertEqual(
            unicode(record),
            u"1 -----> 'john' changed from 1 to 1 in 'MyClass'\n")

        # Check initialization
        with self.assertRaises(TypeError):
            ChangeMessageRecord(sdd=0)

    def test_exit_message_record(self):
        record = ExitMessageRecord(
            time=7,  indent=5, handler='john', exception='sssss')

        # Check unicode output
        self.assertEqual(
            unicode(record), u"7 <--------- EXIT: 'john'sssss\n")

        # Check initialization
        with self.assertRaises(TypeError):
            ExitMessageRecord(sdd=0)

    def test_calling_message_record(self):
        record = CallingMessageRecord(
            time=7,  indent=5, action='run', handler='john', source='sssss')

        # Check unicode output
        self.assertEqual(
            unicode(record), u"7                 run: 'john' in sssss\n")

        # Check initialization
        with self.assertRaises(TypeError):
            CallingMessageRecord(sdd=0)


if __name__ == '__main__':
    unittest.main()

add tests for the message records